| I-5 over Lucile ST | Poor | 171.9 ft | 96,847 | 1966 |
| I-90 over Mercer Sl | Poor | 2669.0 ft | 74,410 | 1970 |
| I-90 over Mercer Slough | Poor | 2812.0 ft | 74,410 | 1940 |
| I-90 over Lake Washington | Poor | 6561.0 ft | 68,544 | 1940 |
| W.b. & Rev I-90 over Lake Washington | Poor | 5736.9 ft | 68,544 | 1989 |
| S Boeing Access RD over Airport Way Bar Ramp | Poor | 182.1 ft | 40,000 | 1952 |
| Eastlake AVE NE over Portage Bay Pl E | Poor | 201.1 ft | 36,000 | 1930 |
| Eastlake AVE NE over Portage Bay | Poor | 291.0 ft | 35,000 | 1915 |
| I-90 over Game Crossing | Poor | 80.1 ft | 33,803 | 1976 |
| 15th ST Northwest over Uprr | Poor | 228.0 ft | 31,879 | 1972 |
| I-90 over Raging River | Poor | 369.1 ft | 31,252 | 1975 |
| 4th AVE S over Argo Rr Yard | Poor | 1741.1 ft | 28,000 | 1933 |
| 4th AVE S over Parking Garage | Poor | 1178.1 ft | 27,000 | 1910 |
| W Meeker Street over Green River | Poor | 245.1 ft | 25,000 | 1958 |
| I-90 EB over Humpback Creek | Poor | 24.0 ft | 18,894 | 1972 |
| I-90 over S Fk Snoqualmie R | Poor | 140.1 ft | 18,876 | 1974 |
| I-90 over Bandera RD | Poor | 111.9 ft | 18,753 | 1972 |
| I-90 over Bandera RD | Poor | 124.0 ft | 18,753 | 1972 |
| W Garfield ST over Marina Pl Rr Ravine | Poor | 3007.9 ft | 18,000 | 1929 |
| I-90 over SR 906 W-w Ramp | Poor | 206.0 ft | 17,601 | 1969 |
| I-90 WB over So Fk Snoqulmie R | Poor | 394.0 ft | 17,601 | 1971 |
| Klickitat DR over I-5 | Poor | 189.0 ft | 15,000 | 1964 |
| 2 AVE Exten S over Railroad | Poor | 208.0 ft | 13,700 | 1928 |
| SR 203 over Cherry Creek | Poor | 101.0 ft | 10,445 | 1946 |
| SR 202 over Snoqualmie River | Poor | 443.9 ft | 9,740 | 1931 |
| 102nd AVE over State Route 522 | Poor | 247.0 ft | 9,464 | 1950 |
| SR 203 over Slough | Poor | 51.8 ft | 7,813 | 1945 |
| SR 203 over Slough | Poor | 67.9 ft | 7,813 | 1945 |
| NE 128th ST over NB I-405 | Poor | 128.0 ft | 7,766 | 2006 |
| Kent-blk Diamond over Bnsf Rr | Poor | 103.0 ft | 7,700 | 1931 |
| S 129th ST over I-5 | Poor | 930.1 ft | 6,386 | 1966 |
| US 2 over Anthracite Creek | Poor | 44.9 ft | 5,782 | 1940 |
| SE May Valley RD over Fifteen Mile Creek | Poor | 40.0 ft | 4,279 | 1932 |
| 148th AVE SE over May Creek | Poor | 21.0 ft | 3,900 | 1951 |
| 42nd AVE So over Duwamish River | Poor | 284.1 ft | 3,185 | 1949 |
| Meadowbrook Way SE over Snoqualmie River | Poor | 386.2 ft | 2,458 | 1921 |
| 428th AVE SE over N Fk Snoqualmie R | Poor | 252.0 ft | 1,200 | 1951 |
| Overlake DR over Depression | Poor | 60.0 ft | 1,050 | 1951 |
| Stossel Ck RD over Cherry Creek | Poor | 24.9 ft | 1,010 | 1947 |
| SE Mud Mt RD over Boise Creek | Poor | 38.1 ft | 947 | 1956 |
| I-90 over S Fk Snoqualmie R | Poor | 315.9 ft | 356 | 1974 |
| 252 AVE SE Issaq over Issaquah Creek | Poor | 54.1 ft | 330 | 1951 |
| NE 175th ST over Swamp Creek | Poor | 47.9 ft | 300 | 1951 |
| 284th AVE NE over Sikes Lake | Poor | 259.8 ft | 225 | 1978 |
| Homestead Vlly RD over S Fk Snoqualmie River | Poor | 215.9 ft | 200 | 1974 |
| Fury Lake Rd. over Deep Creek | Poor | 108.9 ft | 110 | 1965 |
| S 102nd ST over Duwamish River | Poor | 395.0 ft | 100 | 1957 |
| NE Index Ck RD over Skykomish River-s Fork | Poor | 339.9 ft | 80 | 1930 |
| Newhalem Ph Road over Newhalem Creek | Poor | 79.1 ft | 65 | 1968 |
| Road over Snow Creek | Poor | 50.9 ft | 27 | 1979 |
| N Queen Anne DR over Ravine | Fair | 327.1 ft | 125,000 | 1935 |
| I-5 over Terrain | Fair | 604.0 ft | 122,487 | 1966 |
| SW Spokane ST over Duwamish River W Waterwy | Fair | 1339.9 ft | 108,179 | 1983 |
| I-5 over Terrain | Fair | 515.1 ft | 106,282 | 1966 |
| I-5 over Klickitat DR | Fair | 163.1 ft | 106,282 | 1965 |
| I-5 over I-405 NB / SR 518 EB | Fair | 146.0 ft | 106,282 | 1966 |
| I-5 over Galer-lakeview V | Fair | 1670.9 ft | 104,978 | 1961 |
| I-5 over S 259th Pl | Fair | 162.1 ft | 104,261 | 1960 |
| I-5 over SR 516 | Fair | 269.0 ft | 104,261 | 1962 |
| I-5 over SR 516 | Fair | 258.9 ft | 104,261 | 1962 |
| I-5 over Norfolk ST Sewer | Fair | 64.6 ft | 103,312 | 1966 |
| I-5 over Military RD Rose ST | Fair | 149.0 ft | 103,312 | 1966 |
| I-5 Southbound over Terrain | Fair | 528.9 ft | 103,312 | 1967 |
| I-5 over Orillia Rd/s 188th ST | Fair | 194.9 ft | 100,213 | 1963 |
| SW Spokane ST over Delridge Way SW | Fair | 1649.0 ft | 98,700 | 1983 |
| I-5 over Military RD | Fair | 199.1 ft | 98,173 | 1959 |
| I-5 over Military RD | Fair | 243.1 ft | 98,173 | 1960 |
| I-5 over Military RD | Fair | 243.1 ft | 98,173 | 1960 |
| I-5 over S 288th ST | Fair | 157.2 ft | 98,173 | 1961 |
| I-405 over Bn Rr (abandoned) | Fair | 319.9 ft | 97,875 | 1972 |
| I-5 over N-w Ramp | Fair | 469.2 ft | 96,847 | 1966 |
| I-5 over Lucile ST | Fair | 190.0 ft | 96,847 | 1966 |
| I-5 over Terrain | Fair | 900.9 ft | 96,847 | 1966 |
| I-5 over Terrain | Fair | 746.1 ft | 96,609 | 1966 |
| I-5 over Terrain | Fair | 746.1 ft | 96,609 | 1967 |
| I-5 over Terrain | Fair | 872.0 ft | 96,609 | 1966 |
| I-5 SB over Terrain | Fair | 6584.0 ft | 96,609 | 1967 |
| I-5 NB over Terrain | Fair | 5762.1 ft | 96,609 | 1966 |
| I-5 over Duwamish R Rr City ST | Fair | 812.0 ft | 95,981 | 1964 |
| I-5 over Duwamish R Rr City ST | Fair | 812.0 ft | 95,981 | 1964 |
| SW Spokane ST over Delridge Way SW | Fair | 1521.0 ft | 93,180 | 1983 |
| I-5 over NE 155th ST | Fair | 147.0 ft | 92,642 | 1964 |
| I-5 over NE 155th ST | Fair | 147.0 ft | 92,642 | 1964 |
| I-5 over Denny Way-lakeview V | Fair | 7077.1 ft | 92,513 | 1962 |
| I-5 over S 336th ST | Fair | 198.2 ft | 92,438 | 1959 |
| I-5 over S 336th ST | Fair | 155.8 ft | 92,438 | 1959 |
| I-405 over SR 167 | Fair | 188.0 ft | 91,705 | 1964 |
| I-5 over Terrain | Fair | 380.9 ft | 91,632 | 1963 |
| I-5 over Lake Wash Ship Canal | Fair | 4429.1 ft | 90,986 | 1962 |
| I-5 over Ravenna BLVD | Fair | 1325.1 ft | 90,390 | 1961 |
| I-5 over Ravenna BLVD | Fair | 1372.0 ft | 90,390 | 1961 |
| I-405 over SE 8th ST | Fair | 189.0 ft | 89,237 | 1971 |
| I-405 over SE 8th ST Oc | Fair | 183.1 ft | 89,237 | 1972 |
| I-5 over NE Northgate Way | Fair | 166.0 ft | 89,154 | 1964 |
| I-5 over Interurban AVE | Fair | 160.1 ft | 86,409 | 1966 |
| I-5 over Interurban AVE | Fair | 148.6 ft | 86,409 | 1966 |
| I-405 over Cedar River | Fair | 527.9 ft | 85,117 | 1993 |
| I-5 over N-103rd Exp Ramp | Fair | 141.1 ft | 84,693 | 1964 |
| I-405 over N-w Ramp | Fair | 207.0 ft | 83,247 | 1966 |
| I-405 over Green River | Fair | 245.1 ft | 77,251 | 1964 |
| I-405 over SR 181 | Fair | 172.9 ft | 77,251 | 1964 |
| I-405 over Rr & City Streets | Fair | 765.1 ft | 77,251 | 1965 |
| I-405 over Coal Creek Parkway SE | Fair | 196.9 ft | 71,797 | 1965 |
| I-405 over Coal Creek Parkway SE | Fair | 224.1 ft | 71,797 | 1965 |
| I-5 over SB Viaduct Sta 2195 | Fair | 807.1 ft | 71,171 | 1964 |
| I-5 over King-jackson ST | Fair | 706.0 ft | 71,171 | 1965 |
| I-5 over King-jackson ST | Fair | 711.9 ft | 71,171 | 1965 |
| I-5 over Dearborn ST | Fair | 219.2 ft | 71,171 | 1965 |
| I-5 over SR 18 | Fair | 206.0 ft | 70,133 | 1959 |
| I-5 over SR 18 | Fair | 212.9 ft | 70,133 | 1959 |
| I-90 over Richards RD | Fair | 200.1 ft | 69,741 | 1940 |
| I-405 over NE 132nd ST | Fair | 180.1 ft | 69,115 | 1970 |
| I-405 over NE 132nd ST | Fair | 168.0 ft | 69,115 | 1970 |
| EB I-90 over Lake Washington | Fair | 1064.0 ft | 68,544 | 1940 |
| WB I-90 over Lake Washington | Fair | 1369.1 ft | 68,544 | 1989 |
| W.b. I-90 over Lake Washington | Fair | 1472.1 ft | 68,544 | 1989 |
| I-405 over Sunset BLVD (old SR 900) | Fair | 290.0 ft | 68,154 | 1963 |
| I-405 over Bnrr & 115 AVE NE | Fair | 203.1 ft | 67,108 | 1954 |
| I-90 over East Channel-lk Wash | Fair | 2224.1 ft | 66,975 | 1981 |
| I-90 over East Channel-lk Wash | Fair | 2224.1 ft | 66,975 | 1988 |
| SR 167 over Green River | Fair | 241.1 ft | 66,935 | 1967 |
| SR 167 over Green River | Fair | 241.1 ft | 66,935 | 1967 |
| I-5 Sbcd over King Jackson ST | Fair | 709.0 ft | 66,222 | 1965 |
| I-405 over SR 900 / N Park DR | Fair | 214.9 ft | 65,721 | 1966 |
| I-405 over SR 900 / N Park DR | Fair | 214.9 ft | 65,721 | 1966 |
| I-405 over SR 169 | Fair | 120.1 ft | 64,434 | 1994 |
| I-405 over NE 3rd ST | Fair | 110.9 ft | 64,434 | 1993 |
| SR 167 over James ST | Fair | 190.9 ft | 61,426 | 1967 |
| SR 167 over Np Ry | Fair | 314.0 ft | 61,426 | 1967 |
| SR 167 over Np Ry | Fair | 314.0 ft | 61,426 | 1967 |
| SR 99 over Lake Union | Fair | 2955.1 ft | 61,259 | 1931 |
| SR 99 over N 38th ST | Fair | 92.8 ft | 61,259 | 1932 |
| 15th AVE NW over NW Leary Way | Fair | 349.1 ft | 60,000 | 1958 |
| 15th AVE W over Ship Canal | Fair | 294.9 ft | 60,000 | 1917 |
| I-5 NB over James Cherry Revers | Fair | 4724.1 ft | 59,630 | 1964 |
| I-90 over Rainier AVE | Fair | 307.1 ft | 56,847 | 1988 |
| I-405 over SR 522 Sammamish R | Fair | 1352.0 ft | 56,311 | 1968 |
| I-405 over SR 522 Sammamish R | Fair | 1410.1 ft | 56,311 | 1968 |
| I-90 over W Lake Sammamish PKWY | Fair | 359.9 ft | 56,289 | 1972 |
| I-90 over W Lake Sammamish PKWY | Fair | 341.9 ft | 56,289 | 1972 |
| SR 167 over SR 516 | Fair | 190.0 ft | 55,901 | 1967 |
| SR 167 over SR 516 | Fair | 190.0 ft | 55,901 | 1967 |
| SR 167 over Meeker ST | Fair | 158.1 ft | 55,901 | 1967 |
| SR 167 over Meeker ST | Fair | 158.1 ft | 55,901 | 1967 |
| SR 513 over Montlake Cut | Fair | 344.2 ft | 55,497 | 1924 |
| Fauntleroy Way over Admiral Way Avalon Way | Fair | 3123.0 ft | 55,000 | 1963 |
| SR 167 over 84th AVE South | Fair | 229.0 ft | 53,546 | 1967 |
| SR 18 over Peasley Canyon RD | Fair | 364.2 ft | 52,049 | 1958 |
| 15th AVE W over Shilshole AVE NW | Fair | 588.9 ft | 52,000 | 1940 |
| 15th AVE W over Ship Canal Rr | Fair | 1998.0 ft | 52,000 | 1940 |
| S 320th ST over I-5 | Fair | 332.0 ft | 49,879 | 1960 |
| I-5 over Sbcd Viaduct Sta 2195 | Fair | 806.1 ft | 49,417 | 1964 |
| SR 167 over Ellingson Road | Fair | 163.1 ft | 48,865 | 1977 |
| SR 167 over First AVE N | Fair | 146.0 ft | 48,865 | 1977 |
| I-405 over I-90 Factoria | Fair | 602.0 ft | 48,783 | 1969 |
| SR 99 over Duwamish River | Fair | 3009.8 ft | 48,204 | 1956 |
| 148th AVE over SR 520 | Fair | 325.1 ft | 46,948 | 1981 |
| SR 99 over Duwamish River | Fair | 2895.0 ft | 46,303 | 1996 |
| SR 520 over 116th AVE NE | Fair | 154.9 ft | 45,466 | 1966 |
| SR 520 over 116th AVE NE | Fair | 165.0 ft | 45,466 | 1966 |
| SR 520 over Pedestrian Trail | Fair | 208.0 ft | 45,466 | 1969 |
| SR 520 over 130th AVE NE | Fair | 210.0 ft | 45,466 | 1970 |
| SR 520 over 120th AVE NE | Fair | 392.1 ft | 45,466 | 1971 |
| SR 520 over 124 AVE NE - NW Ramp | Fair | 254.9 ft | 45,466 | 1971 |
| SR 520 over 140th AVE NE | Fair | 199.1 ft | 45,466 | 1972 |
| SR 520 over NE 24th ST | Fair | 330.1 ft | 45,466 | 1998 |
| SB Airport Expy over S 170th ST | Fair | 148.0 ft | 45,000 | 1972 |
| N.w.sammamish Road over Issaquah Creek | Fair | 149.9 ft | 44,000 | 1996 |
| S 180th ST over SR 167 | Fair | 240.2 ft | 43,450 | 1964 |
| SR 520 over Wls PKWY & Sammamish R | Fair | 387.1 ft | 42,985 | 1976 |
| S Spokane ST over E Marginal Wy 1st 4th | Fair | 3410.1 ft | 42,350 | 1941 |
| SR 18 over Npry & City Streets | Fair | 1150.9 ft | 41,223 | 1956 |
| SR 900 over I-90 | Fair | 241.1 ft | 40,805 | 1970 |
| SR 518 over SR 509 | Fair | 241.1 ft | 40,718 | 1971 |
| I-5 over Exp Galer-lakeview V | Fair | 1907.8 ft | 39,824 | 1961 |
| NE 124th ST over I-405 | Fair | 441.9 ft | 39,499 | 1969 |
| I-5 P1 15559 Ramp over I-5 Hov Lane | Fair | 532.5 ft | 37,896 | 1966 |
| SR 99 over N 50th ST | Fair | 44.0 ft | 37,273 | 1933 |
| S Boeing Access RD over I-5 | Fair | 336.9 ft | 37,060 | 1966 |
| Eastlake AVE NE over NE 40th ST Burke Gilman | Fair | 644.0 ft | 37,000 | 1930 |
| Logan AVE N over Cedar River | Fair | 200.1 ft | 37,000 | 1973 |
| I-405 over I-5 | Fair | 556.1 ft | 36,877 | 1965 |
| I-5 Rev Exp Lanes over Ravenna BLVD | Fair | 1349.1 ft | 36,725 | 1961 |
| S 212th ST over Green River | Fair | 193.9 ft | 36,000 | 1966 |
| I-90 Wcd Ramp over Ramps Rail City Street | Fair | 865.2 ft | 35,848 | 1965 |
| Eastlake AVE NE over NE Pacific ST | Fair | 320.9 ft | 35,000 | 1930 |
| I-90 over E Fk Issaquah CR | Fair | 74.1 ft | 34,797 | 1976 |
| I-90 over E Fk Issaquah Creek | Fair | 544.0 ft | 34,797 | 1976 |
| I-90 over E Fk Issaquah Creek | Fair | 78.1 ft | 34,797 | 1976 |
| I-90 over E Fk Issaquah CR | Fair | 230.0 ft | 34,797 | 1976 |
| Avondale Road over Bear Creek | Fair | 51.8 ft | 34,500 | 1979 |
| South 43rd Street over Hospital Access Road | Fair | 35.1 ft | 34,442 | 1992 |
| I-90 over E Fk Issaquah CR | Fair | 51.8 ft | 34,108 | 1951 |
| I-90 over High Point RD | Fair | 140.1 ft | 33,894 | 1975 |
| I-90 over High Point RD | Fair | 140.1 ft | 33,894 | 1975 |
| I-90 over Game Crossing | Fair | 80.1 ft | 33,803 | 1976 |
| SR 99 over SR 518 Riverton Hts | Fair | 324.1 ft | 33,632 | 1962 |
| SR 99 over N 63rd ST | Fair | 73.2 ft | 33,359 | 1932 |
| SR 520 over Peat Bog | Fair | 193.9 ft | 32,900 | 1993 |
| Interurban AVE S over Green River | Fair | 205.1 ft | 32,860 | 1963 |
| I-90 over 4th AVE NW & Trail | Fair | 444.9 ft | 32,550 | 1971 |
| I-90 over 4th AVE NW & Trail | Fair | 416.0 ft | 32,550 | 1971 |
| I-90 over Front ST N | Fair | 226.0 ft | 32,550 | 1971 |
| S Boeing Access RD over Bnrr | Fair | 336.9 ft | 32,504 | 1945 |
| I-5 Sbcd over Dearborn ST | Fair | 215.9 ft | 32,408 | 1965 |
| Coal Creek PKWY over May Creek | Fair | 290.0 ft | 32,000 | 2009 |
| 15th ST Northwest over Bnrr & B ST NW | Fair | 304.1 ft | 31,879 | 1972 |
| SR 161 over I-5 | Fair | 405.8 ft | 31,811 | 1959 |
| SR 18 over Bnsf Rr Spur | Fair | 211.9 ft | 31,748 | 1986 |
| NE 80th ST over I-5 I-5 Exp Lns Ramps | Fair | 301.5 ft | 31,375 | 1964 |
| S 277th ST over SR 167 | Fair | 195.9 ft | 31,266 | 1968 |
| Coal Creek Parkway over Coal Creek | Fair | 51.2 ft | 31,258 | 2014 |
| S 212th ST over SR 167 & Springbrook Ck | Fair | 317.3 ft | 31,076 | 1973 |
| I-90 over Mercer Slough | Fair | 1723.1 ft | 31,000 | 1970 |
| SW Admiral Way over Ravine Fairmount AVE | Fair | 290.0 ft | 31,000 | 1927 |
| I-5 over Nbcd Viaduct Sta 2195 | Fair | 702.1 ft | 30,675 | 1964 |
| I-5 S-e Ramp over I-5 Ramps Railroad | Fair | 946.9 ft | 30,627 | 1965 |
| I-90 over E Fk Issaquah Creek | Fair | 117.1 ft | 30,622 | 1976 |
| I-90 over E Fk Issaquah Creek | Fair | 125.0 ft | 30,622 | 1976 |
| I-90 over E Fk Issaquah Creek | Fair | 105.0 ft | 30,622 | 1976 |
| Holman RD NW over 8th AVE NW | Fair | 66.9 ft | 30,500 | 1975 |
| 160th/brickyard RD over I-405 | Fair | 292.0 ft | 30,405 | 1969 |
| Madison ST over I-5 | Fair | 279.9 ft | 30,000 | 1964 |
| Front ST N. over E.fk.issaquah Ck. | Fair | 41.0 ft | 30,000 | 1970 |
| Leary Way over Sammamish River | Fair | 115.2 ft | 30,000 | 1992 |
| NE 4th ST over I-405 | Fair | 224.1 ft | 29,600 | 2003 |
| Fremont AVE N over Ship Canal | Fair | 316.9 ft | 29,300 | 1917 |
| SR 520 over Lake Washington | Fair | 7634.8 ft | 28,957 | 2016 |
| NE 45th ST over I-5 | Fair | 241.1 ft | 28,856 | 1960 |
| SR 519 over Stadium Bnsfrr 4th AVE | Fair | 824.1 ft | 28,680 | 2002 |
| SR 99 over Dexter Way N | Fair | 35.1 ft | 28,629 | 1930 |
| Spokane ST EB Lane over I-5 | Fair | 1793.0 ft | 28,260 | 1966 |
| SR 518 over 8th AVE | Fair | 174.9 ft | 28,203 | 1970 |
| SR 518 over Des Moines Way S | Fair | 232.9 ft | 28,203 | 1970 |
| SR 18 over Green River | Fair | 371.1 ft | 28,147 | 1959 |
| SR 18 W-s Ramp over I-5 & SR 18 | Fair | 2407.2 ft | 28,117 | 2012 |
| SW Grady Way over Springbrook Creek | Fair | 61.0 ft | 28,000 | 1987 |
| SW 43rd Street over Springbrook Creek | Fair | 28.9 ft | 27,713 | 1983 |
| Redmond Way over Sammamish R | Fair | 196.9 ft | 27,000 | 1972 |
| NE 50th ST over I-5 | Fair | 241.1 ft | 27,000 | 1962 |
| NE 40th ST over SR 520 | Fair | 219.2 ft | 26,907 | 1980 |
| 15th ST NW over SR 167 | Fair | 274.6 ft | 26,767 | 1972 |
| SR 522 over 195th Street | Fair | 174.9 ft | 26,704 | 1986 |
| S Jackson ST over ST Tunnel | Fair | 146.0 ft | 26,700 | 1987 |
| I-90 over W Snoqualmie Ic | Fair | 165.0 ft | 26,372 | 1976 |
| SR 18 over Kent-black Diamond RD SE | Fair | 202.1 ft | 26,257 | 1959 |
| W Dravus ST over Railroad Yards | Fair | 416.0 ft | 26,000 | 1935 |
| Grady Way over Uprr & Bnrr | Fair | 1205.1 ft | 26,000 | 1986 |
| A Street SE over Stuck River (white Riv) | Fair | 290.0 ft | 25,650 | 1991 |
| Avondale Road NE over Cottage Lake Creek | Fair | 37.4 ft | 25,321 | 1994 |
| SR 522 over Sammamish River | Fair | 2335.0 ft | 25,269 | 1968 |
| NE 195th Street over North Creek | Fair | 48.6 ft | 25,173 | 1984 |
| I-90 over 424th AVE SE | Fair | 120.1 ft | 24,954 | 1976 |
| I-90 over 424th AVE SE | Fair | 120.1 ft | 24,954 | 1976 |
| Avondale Road over Bear Creek | Fair | 66.9 ft | 24,768 | 1995 |
| Central Way over Np Ry | Fair | 149.0 ft | 24,500 | 1965 |
| Roosevelt Way NE over NE Campus Parkway | Fair | 68.9 ft | 24,500 | 1949 |
| I-5 Sbcd over Terrain | Fair | 729.0 ft | 24,462 | 1967 |
| I-5 SB Off Ramp over S-e Ramp To Columbia Way | Fair | 1421.9 ft | 24,104 | 1967 |
| W Valley HWY over Mill CR | Fair | 29.9 ft | 24,100 | 1915 |
| 68th AVE NE over Sammamish River | Fair | 589.9 ft | 24,000 | 1970 |
| Union Hill Road over Bear Creek | Fair | 112.9 ft | 23,866 | 1994 |
| Avondale Road over Bear Creek | Fair | 123.0 ft | 23,710 | 1995 |
| I-405 N-e Ramp over Sammamish River | Fair | 709.0 ft | 23,617 | 1968 |
| N.w.gilman Blvd. over Issaquah Ck. | Fair | 105.0 ft | 23,500 | 1940 |
| Ramp To I-5 Nb/sb over City Sts Ramp & Rr | Fair | 938.0 ft | 23,338 | 1966 |
| Issaquah F.c. Road over Old Vaughn Hill Road | Fair | 37.1 ft | 23,000 | 1985 |
| Novelty Hill RD over Bear Creek | Fair | 32.2 ft | 23,000 | 1974 |
| I-90 over SR 18 | Fair | 158.1 ft | 22,901 | 1963 |
| I-90 over SR 18 | Fair | 208.0 ft | 22,901 | 1975 |
| Highland Drive over North Fork Issaquah CR | Fair | 109.9 ft | 22,600 | 2002 |
| W-n Ramp To I-405 over S-w Ramp To I-90 | Fair | 210.0 ft | 22,417 | 1968 |
| Pacific Highway over Duwamish River | Fair | 221.1 ft | 22,406 | 2000 |
| E-n Ramp over I-5 | Fair | 287.4 ft | 22,370 | 1966 |
| I-5 over Terrain | Fair | 405.8 ft | 22,370 | 1967 |
| I-90 over Mercer Slough | Fair | 1871.1 ft | 22,361 | 1970 |
| SR 599 over 133rd ST | Fair | 141.1 ft | 22,284 | 1966 |
| SR 599 over 42nd AVE S | Fair | 220.1 ft | 22,284 | 1968 |
| SR 169 over Cedar River | Fair | 129.9 ft | 22,007 | 1950 |
| Bronson Way N over Cedar R | Fair | 157.2 ft | 22,000 | 1940 |
| Seattle BLVD over Sound Transit Tunnel | Fair | 287.1 ft | 22,000 | 1910 |
| 12 AVE S over Dearborn ST | Fair | 495.1 ft | 22,000 | 1917 |
| 3rd ST SW over Bnsf Rr | Fair | 122.0 ft | 22,000 | 2002 |
| 3rd ST SW over A ST SW | Fair | 68.9 ft | 22,000 | 2002 |
| I-90 over SR 202 | Fair | 187.0 ft | 21,667 | 1976 |
| I-90 over SR 202 | Fair | 187.0 ft | 21,667 | 1975 |
| I-90 Ramp To I-405 over I-90 Mainline | Fair | 454.1 ft | 21,663 | 1969 |
| SR 509 over S 128th ST | Fair | 203.1 ft | 21,456 | 1968 |
| SR 99 over N 46th ST | Fair | 91.9 ft | 21,386 | 1933 |
| Issq-hobart RD SE over Fifteen Mile Creek | Fair | 64.0 ft | 21,368 | 1949 |
| 8th Street NE over Green River | Fair | 137.5 ft | 21,100 | 1973 |
| W Dravus ST over 15th AVE W | Fair | 116.1 ft | 21,000 | 1959 |
| W Emerson Pl over Railroad | Fair | 125.0 ft | 21,000 | 1986 |
| I-5 Nbcd over Dearborn ST | Fair | 215.9 ft | 20,967 | 1965 |
| I-90 over I-5 | Fair | 1685.0 ft | 20,960 | 1966 |
| I-90 over I-5 | Fair | 1880.9 ft | 20,960 | 1966 |
| I-90 EB over Bus Depot Ped Path Bldns | Fair | 1140.1 ft | 20,960 | 2003 |
| 15 Street NW over Mill Creek Wetland | Fair | 27.9 ft | 20,648 | 2014 |
| I-90 over Bnrr (removed) | Fair | 228.0 ft | 20,619 | 1976 |
| I-90 over Bnrr (removed) | Fair | 228.0 ft | 20,619 | 1976 |
| NE 130th ST over I-5 | Fair | 240.2 ft | 20,062 | 1964 |
| State Route 181 over Mill CR | Fair | 60.0 ft | 20,000 | 1954 |
| West Valley HWY over Green River | Fair | 274.9 ft | 20,000 | 1968 |
| W Garfield ST over Bnrr | Fair | 359.9 ft | 20,000 | 1930 |
| W Emerson ST over Rr Tracks Alley | Fair | 668.0 ft | 19,800 | 1949 |
| SR 169 over Cedar River | Fair | 155.8 ft | 19,730 | 1994 |
| S-w Ramp over W Valley HWY S Mill CR | Fair | 314.0 ft | 19,506 | 1973 |
| W Garfield ST over 15th AVE W | Fair | 904.9 ft | 19,500 | 1957 |
| R ST SE over Stuck River | Fair | 250.0 ft | 19,500 | 1967 |
| I-5 Express Lanes over James & Cherry Streets | Fair | 671.9 ft | 19,438 | 1964 |
| I-5 S-w Ramp over Terrain | Fair | 1028.9 ft | 19,202 | 1967 |
| SR 18 over Jenkins Creek | Fair | 65.0 ft | 19,144 | 2002 |
| SR 520 over SR 202 & Bike Path | Fair | 462.9 ft | 19,104 | 1995 |
| 195th ST over I-405 | Fair | 252.0 ft | 19,064 | 1968 |
| 1st AVE S over Argo Rr Yard | Fair | 2544.0 ft | 19,000 | 1935 |
| 150th AVE SE over I-90 | Fair | 403.9 ft | 18,919 | 1973 |
| I-90 over Avalanche Path | Fair | 700.1 ft | 18,894 | 1971 |
| I-90 over Denny Creek | Fair | 3620.1 ft | 18,894 | 1981 |
| EB I-90 over Olallie Creek | Fair | 22.0 ft | 18,894 | 1972 |
| I-90 over S Fk Snoqualmie R | Fair | 367.1 ft | 18,876 | 1974 |
| I-90 over S Fk Snoqualmie R | Fair | 367.1 ft | 18,876 | 1974 |
| I-90 over Garcia Interchange | Fair | 115.2 ft | 18,876 | 1976 |
| I-90 over Homestead Valley RD | Fair | 104.0 ft | 18,876 | 1974 |
| 83rd AVE S over Cattle Crossing | Fair | 62.0 ft | 18,758 | 1990 |
| 83rd AVE S over Green River | Fair | 250.0 ft | 18,758 | 1990 |
| I-90 over S Fk Snoqualmie R | Fair | 213.9 ft | 18,692 | 1971 |
| I-90 over County Road(old I-90) | Fair | 244.1 ft | 18,692 | 1971 |
| SR 99 over Spokane ST | Fair | 2792.0 ft | 18,505 | 1959 |
| 12th AVE S over I-90 | Fair | 366.1 ft | 18,400 | 1968 |
| SR 520 W-s Ramp over I-5 | Fair | 351.0 ft | 18,129 | 1962 |
| SR 520 over Portage Bay | Fair | 2840.9 ft | 18,129 | 1963 |
| I-90 over 468th AVE SE | Fair | 178.1 ft | 18,090 | 1971 |
| NE 12th ST over Parking Lot | Fair | 282.2 ft | 18,028 | 1971 |
| NE 45th ST over 25th AVE NE | Fair | 730.0 ft | 18,000 | 1938 |
| 148th AVE NE over Hillside Slope | Fair | 504.9 ft | 18,000 | 1991 |
| SE 231st ST over SR 18 | Fair | 274.0 ft | 17,714 | 1972 |
| Airport Way S over Argo Rr Yard | Fair | 956.0 ft | 17,500 | 1928 |
| NE 90th ST over Sammamish River | Fair | 220.1 ft | 17,500 | 2001 |
| 196 - 200 Street over Green River | Fair | 325.1 ft | 17,406 | 1998 |
| SR 99 over Tukwila Intl BLVD | Fair | 248.0 ft | 17,276 | 1966 |
| SR 99 over Tukwila Intl BLVD | Fair | 235.9 ft | 17,276 | 1966 |
| Lake Tapps Parkway over E Valley Highway | Fair | 448.2 ft | 17,243 | 2003 |
| W Emerson ST over 15th AVE W | Fair | 691.9 ft | 17,000 | 1959 |
| SR 18 over Cedar River SE Bain RD | Fair | 351.0 ft | 16,971 | 2004 |
| Shorewood Drive over I-90 | Fair | 205.1 ft | 16,800 | 1989 |
| SR 99 W-s Ramp over Bnrr City Street | Fair | 404.9 ft | 16,753 | 1996 |
| SR 900 over I-5 | Fair | 450.1 ft | 16,633 | 1966 |
| SR 900 over I-5 | Fair | 450.1 ft | 16,633 | 1966 |
| Lakemont BLVD over Hill Side | Fair | 840.9 ft | 16,261 | 1998 |
| Lakemont BLVD over Ravine | Fair | 99.1 ft | 16,261 | 1998 |
| S 180th ST over Green River | Fair | 190.0 ft | 15,698 | 1968 |
| SR 169 over Np Ry | Fair | 152.9 ft | 15,568 | 1939 |
| Albro ST over I-5 | Fair | 287.1 ft | 15,563 | 1966 |
| SR 18 over Carey CR Trib | Fair | 113.8 ft | 15,522 | 1995 |
| SR 18 over Carey Creek | Fair | 210.0 ft | 15,522 | 1995 |
| I-90 W-s Ramp over I-90 Mainline | Fair | 463.9 ft | 15,468 | 1969 |
| SR 18 E-n Ramp over I-5 SR 18 Ramps | Fair | 1449.1 ft | 15,430 | 2012 |
| NE 12th ST over Bnrr | Fair | 232.0 ft | 15,309 | 1970 |
| NB I5 Off Ramp over W-s I5 EB W Sea Frwy | Fair | 1708.0 ft | 15,286 | 1967 |
| Covington-swyr RD over Jenkins Creek | Fair | 48.9 ft | 15,015 | 1929 |
| S Jackson ST over Parking Garage | Fair | 143.0 ft | 15,000 | 1910 |
| Military Road over S-w Ramp To S 188th ST | Fair | 227.0 ft | 14,741 | 1964 |
| NE 128th Way over Cottage Lake Creek | Fair | 35.1 ft | 14,586 | 1975 |
| S 160th ST over Airport Expressway | Fair | 305.1 ft | 14,500 | 1970 |
| Northup Way over Eastside Rail Corridor | Fair | 63.0 ft | 14,250 | 1987 |
| S-w Ramp over Southcenter BLVD | Fair | 80.1 ft | 14,215 | 1965 |
| SR 522 over W-s Ramp I-5 | Fair | 357.9 ft | 14,052 | 1962 |
| Cloverdale ST over SR 509 | Fair | 333.0 ft | 14,039 | 1968 |
| Spring ST Ramp over I-5 SB Col | Fair | 169.9 ft | 14,032 | 1964 |
| Klickitat Drive over SB Southcenter PKWY | Fair | 30.8 ft | 14,024 | 2012 |
| S-e Ramp over 4th Avenue | Fair | 248.0 ft | 14,016 | 2003 |
| 10th AVE over SR 520 | Fair | 285.1 ft | 13,800 | 1962 |
| I-90 WB On Ramp over 224th AVE NW & Trail | Fair | 372.0 ft | 13,798 | 1971 |
| I-5 Ramp over City Streets | Fair | 671.9 ft | 13,703 | 1964 |
| N-85th Ramp over I-5 | Fair | 416.0 ft | 13,701 | 1964 |
| SR 99 over Cloverdale ST | Fair | 86.0 ft | 13,545 | 1959 |
| East Marginal Way over Duwamish River | Fair | 272.0 ft | 13,500 | 1989 |
| 4th AVE S over Railroad Station | Fair | 1178.1 ft | 13,500 | 1910 |
| Spokane ST WB Lane over I-5 | Fair | 2884.8 ft | 13,457 | 1967 |
| Military RD over I-5 | Fair | 514.8 ft | 13,282 | 1963 |
| Old Redmond Road over 138th AVE NE | Fair | 36.1 ft | 13,100 | 1970 |
| 15th AVE NE over Cowen Park Ravine | Fair | 357.9 ft | 13,000 | 1936 |
| S Albro Pl over Airport Way S Rr | Fair | 565.0 ft | 13,000 | 1931 |
| Weyerhaeuser Way S over SR 18 | Fair | 310.0 ft | 12,865 | 1970 |
| SR 202 over Snoqualmie River | Fair | 419.0 ft | 12,682 | 1980 |
| N-w Ramp over I-405 E-n S-n Ramps | Fair | 214.9 ft | 12,607 | 1966 |
| SW Admiral Way over Schmitz BLVD Ravine | Fair | 174.9 ft | 12,500 | 1935 |
| SR 520 E-n Ramp over 115th AVE NE & Trail | Fair | 319.9 ft | 12,471 | 1993 |
| SR 520 W-n Ramp over Northup Way | Fair | 162.1 ft | 12,471 | 1993 |
| Phinney AVE over N 57th ST | Fair | 60.0 ft | 12,400 | 1900 |
| Ferry Trafic over Puget Sound @ Seattle | Fair | 207.0 ft | 12,000 | 2019 |
| NE 85th Street over Sammamish River | Fair | 179.1 ft | 12,000 | 1985 |
| Des Moines Mem DR over SR 99 | Fair | 213.9 ft | 11,989 | 1959 |
| SR 202 over Kimball CR | Fair | 86.0 ft | 11,531 | 1924 |
| SR 202 over Overflow Channel | Fair | 120.1 ft | 11,531 | 1925 |
| SR 202 over S Fk Snoqualmie R | Fair | 453.1 ft | 11,531 | 1936 |
| SW Spokane ST over W Waterway Of Duwamish | Fair | 836.0 ft | 11,500 | 1991 |
| SR 169 over Green R | Fair | 688.0 ft | 11,364 | 1932 |
| SR 520 Ramp over Portage Bay | Fair | 375.0 ft | 11,169 | 1963 |
| 5th AVE NE over I-5 I-5 Express Lanes | Fair | 326.1 ft | 11,036 | 1964 |
| SW Spokane ST over Klickitat E Marginal Rr | Fair | 924.9 ft | 11,000 | 1991 |
| S 196th ST over Uprr 77th AVE S Bnsfrr | Fair | 1249.0 ft | 11,000 | 2000 |
| SR 203 over Tolt River | Fair | 268.0 ft | 10,906 | 1977 |
| I-90 EB over I-90 WB | Fair | 912.1 ft | 10,900 | 1988 |
| Monster Road SW over Black River Channel | Fair | 188.0 ft | 10,670 | 1998 |
| I-5 over Terrain | Fair | 212.9 ft | 10,636 | 1962 |
| Southcenter BLVD over Green River | Fair | 245.1 ft | 10,616 | 1994 |
| Beacon-holgate over I-5 | Fair | 771.0 ft | 10,600 | 1966 |
| Woodinville-duvall over Snoqualmie River | Fair | 1182.1 ft | 10,564 | 1951 |
| Woodinville Duvall over Tuck Creek | Fair | 49.9 ft | 10,564 | 1948 |
| Woodinville Duvall over Duvall Slough | Fair | 69.9 ft | 10,564 | 1948 |
| Woodinville Duvall over Duvall Slough | Fair | 89.9 ft | 10,564 | 1948 |
| Woodinville Duvall over Duvall Slough | Fair | 639.1 ft | 10,564 | 1948 |
| S Lucile ST over Rr Tracks | Fair | 509.8 ft | 10,511 | 1981 |
| SR 203 over Slough | Fair | 51.8 ft | 10,445 | 1945 |
| E-n Ramp over City Street Nprr | Fair | 1113.8 ft | 10,336 | 1959 |
| Strander BLVD over Green River | Fair | 206.0 ft | 10,269 | 1973 |
| Ferry Traffic over Puget Sound @ Seattle | Fair | 634.8 ft | 10,212 | 2019 |
| SR 203 over Slough | Fair | 58.1 ft | 10,190 | 1945 |
| SR 522 Ramp over Sammamish River | Fair | 303.1 ft | 10,166 | 1968 |
| I-405 NB Hov over I-90 Factoria | Fair | 525.9 ft | 10,114 | 1969 |
| SR 509 over N-n Ramp | Fair | 462.9 ft | 10,009 | 1968 |
| Spring ST over I-5 | Fair | 278.9 ft | 10,000 | 1964 |
| Seneca ST over I-5 | Fair | 250.0 ft | 10,000 | 1964 |
| SE 256th ST over Jenkins Creek | Fair | 255.9 ft | 10,000 | 2002 |
| 16th AVE S over Mcsorely Creek | Fair | 375.0 ft | 10,000 | 1951 |
| SW Spokane ST over E Marginal Way S | Fair | 2357.0 ft | 10,000 | 1983 |
| SW Spokane ST over E Marginal Way S | Fair | 985.9 ft | 10,000 | 1983 |
| 16th AVE S over Mcsorley Creek | Fair | 211.9 ft | 10,000 | 1951 |
| W Galer ST over Elliott AVE W Rr | Fair | 815.0 ft | 10,000 | 2000 |
| N-seneca Ramp over I-5 SB & City Streets | Fair | 971.5 ft | 9,991 | 1964 |
| SR 203 over Harris Creek | Fair | 58.1 ft | 9,800 | 1945 |
| SR 203 over Drainage Channel | Fair | 60.0 ft | 9,800 | 1954 |
| SR 160 over Puget Sound @ Fauntleroy | Fair | 558.1 ft | 9,721 | 1957 |
| Kamber Road over Richards Creek | Fair | 34.1 ft | 9,709 | 2005 |
| NE 185th ST over I-5 | Fair | 249.0 ft | 9,704 | 1964 |
| Harbor AVE SW over Rr | Fair | 124.0 ft | 9,546 | 2001 |
| Oakesdale AVE SW over Black River Drain | Fair | 193.9 ft | 9,500 | 1987 |
| 3rd ST SW over C ST SW | Fair | 141.1 ft | 9,500 | 2002 |
| I-5 over E-s Ramp Br | Fair | 1206.0 ft | 9,404 | 1967 |
| Oakesdale AVE SW over Springbrook Creek | Fair | 38.7 ft | 9,325 | 1979 |
| Preston Fall City over Raging River | Fair | 169.9 ft | 9,212 | 1962 |
| Preston Fall City over Raging River | Fair | 199.1 ft | 9,092 | 1998 |
| Houser Way over Cedar River | Fair | 140.7 ft | 8,902 | 1960 |
| 51st AVE S over SR 518 | Fair | 294.9 ft | 8,894 | 1966 |
| SE Aub-blk Dia RD over Green River | Fair | 243.1 ft | 8,871 | 1970 |
| SW Spokane ST over Duwamish River E Waterwy | Fair | 484.9 ft | 8,800 | 1976 |
| I-405 N-w Ramp over Sammamish R I-405 SR 5 | Fair | 1469.2 ft | 8,770 | 1968 |
| I-90 W-n Ramp over I-90 Wbcd | Fair | 1331.0 ft | 8,688 | 1969 |
| NE 70th-ne 71st ST over I-5 | Fair | 330.1 ft | 8,682 | 1962 |
| E-n Ramp over I-90 Highlands DR | Fair | 924.9 ft | 8,604 | 2003 |
| S-s Ramp over 1st AVE S | Fair | 151.9 ft | 8,511 | 1968 |
| 108th AVE SE over SE 274th ST | Fair | 159.1 ft | 8,500 | 1998 |
| Lind AVE SW over P9 Channel/panther Creek | Fair | 32.2 ft | 8,345 | 1981 |
| S-albro Ramp over Terrain | Fair | 175.2 ft | 8,293 | 1966 |
| NE Park DR over Rr And Houser Way N | Fair | 238.8 ft | 8,210 | 1966 |
| I-90 S-e Ramp over I-90 Mercer Slough | Fair | 1929.1 ft | 8,091 | 1970 |
| SE 82nd ST over I-90 | Fair | 284.1 ft | 8,022 | 1975 |
| SE 256th ST over Soos Creek | Fair | 33.1 ft | 8,000 | 1927 |
| 5th AVE S over ST Tunnel | Fair | 940.0 ft | 8,000 | 1910 |
| SR 203 over Creek | Fair | 51.8 ft | 7,813 | 1945 |
| SR 203 over Slough | Fair | 291.0 ft | 7,813 | 1945 |
| SR 203 over Slough | Fair | 68.9 ft | 7,813 | 1945 |
| SR 203 over Slough | Fair | 51.8 ft | 7,813 | 1945 |
| SR 203 over Slough | Fair | 96.1 ft | 7,813 | 1945 |
| SR 203 over Slough | Fair | 68.9 ft | 7,813 | 1945 |
| SR 203 over Slough | Fair | 68.9 ft | 7,813 | 1945 |
| SR 203 over Griffin CR | Fair | 45.9 ft | 7,813 | 1945 |
| Univ-n Ramp over I-5 | Fair | 630.2 ft | 7,599 | 1965 |
| Yesler Way over I-5 | Fair | 390.4 ft | 7,500 | 1965 |
| 436th AVE SE over S Fk Snoqualmie | Fair | 267.1 ft | 7,491 | 1971 |
| SR 160 over Puget Sound @ Pt Vashon | Fair | 744.1 ft | 7,310 | 1957 |
| Kent-blk Diam RD over Big Soos Creek | Fair | 36.1 ft | 7,293 | 1931 |
| 436th AVE SE over I-90 | Fair | 311.0 ft | 7,288 | 1976 |
| I-5 Nbcd over SR 104 | Fair | 206.0 ft | 7,260 | 1963 |
| Yesler Way over 5th AVE S | Fair | 68.9 ft | 7,215 | 1912 |
| SR 202 over Patterson Creek | Fair | 42.0 ft | 7,187 | 1930 |
| W-s Ramp over I-5 Mainline And Ramps | Fair | 1664.0 ft | 6,684 | 1967 |
| Roanoke ST over I-5 | Fair | 267.1 ft | 6,500 | 1962 |
| W North Bend Way over Ribary Creek | Fair | 163.1 ft | 6,500 | 1941 |
| W North Bend Way over S Fork Snoqualmie River | Fair | 466.9 ft | 6,500 | 1941 |
| W North Bend Way over Gardiners Creek | Fair | 56.1 ft | 6,500 | 1941 |
| US 2 over Stream | Fair | 46.9 ft | 6,441 | 1937 |
| US 2 over Stream | Fair | 77.1 ft | 6,441 | 1937 |
| US 2 over Stream | Fair | 44.9 ft | 6,441 | 1937 |
| US 2 over Stream | Fair | 46.9 ft | 6,441 | 1937 |
| I-5 over 6th-s Ramp Br | Fair | 423.9 ft | 6,076 | 1967 |
| US 2 over S Fk Skykomish River | Fair | 338.9 ft | 6,019 | 1938 |
| SE 24th ST over Wetland | Fair | 389.1 ft | 6,000 | 1968 |
| W. Snoq Valley RD over Tuck Creek | Fair | 29.9 ft | 5,973 | 1999 |
| Cedar Grove RD over Cedar River | Fair | 189.0 ft | 5,971 | 1962 |
| I-5 N - 6th Ramp over E-6th Ramp EB Lanes | Fair | 722.1 ft | 5,855 | 1967 |
| I-5 Ramp over Terrain | Fair | 232.9 ft | 5,855 | 1967 |
| US 2 over S Fork Skykomish River | Fair | 259.8 ft | 5,782 | 1940 |
| US 2 over Creek | Fair | 98.1 ft | 5,692 | 1998 |
| US 2 over Deception CR | Fair | 39.0 ft | 5,641 | 1940 |
| I-5 over Terrain | Fair | 153.9 ft | 5,638 | 1967 |
| US 2 over Bn Rr (gn) Scenic | Fair | 366.1 ft | 5,590 | 1990 |
| I-5 over Sbcd Ne110th ST | Fair | 166.0 ft | 5,437 | 1964 |
| S-w Ramp over Airport Way S | Fair | 518.0 ft | 5,379 | 1966 |
| 8th AVE N To I-5 N over I-5 N Ramp To SR 522 E | Fair | 182.1 ft | 5,197 | 1963 |
| SR 18 Ramp over Holder CR | Fair | 67.9 ft | 5,021 | 1960 |
| I-5 Ramp over Pedestrian Path | Fair | 619.1 ft | 5,002 | 1963 |
| NE 92nd ST over I-5 | Fair | 328.1 ft | 5,000 | 1964 |
| Cumberlnd-kanaskat over Bnsf Rr | Fair | 158.1 ft | 5,000 | 1959 |
| 8th AVE over I-5 | Fair | 858.9 ft | 4,900 | 1964 |
| W Main ST over SR 167 | Fair | 382.9 ft | 4,818 | 1972 |
| Vashon HWY SW over Judd Creek | Fair | 370.1 ft | 4,818 | 1953 |
| 244th AVE SE over Newaukum Creek | Fair | 32.2 ft | 4,723 | 1928 |
| Cedar Grove RD over Issaquah Creek | Fair | 42.0 ft | 4,568 | 1962 |
| North Creek PKWY over North Creek | Fair | 77.1 ft | 4,323 | 1984 |
| 148th AVE SE over Soos Creek | Fair | 32.2 ft | 4,306 | 1971 |
| Cell Phone Ramp over S 170th | Fair | 148.0 ft | 4,300 | 1972 |
| 51st AVE South over Southcenter BLVD | Fair | 222.1 ft | 4,180 | 1996 |
| SR 518 over N-w Ramp SR 518 | Fair | 608.9 ft | 4,108 | 1971 |
| W Garfield ST Ramp over 16th AVE W | Fair | 395.0 ft | 4,000 | 1991 |
| I-5 over Terrain | Fair | 743.1 ft | 3,999 | 1964 |
| SR 167 Ramp over SR 18 | Fair | 331.0 ft | 3,951 | 1974 |
| Lake Washington Bv over I-405 | Fair | 106.0 ft | 3,937 | 1965 |
| SR 509 over Joes Creek | Fair | 264.1 ft | 3,913 | 1929 |
| SR 509 over Thames Creek/ped Trail | Fair | 557.1 ft | 3,869 | 1929 |
| 212th Way SE over Green River | Fair | 256.9 ft | 3,862 | 1991 |
| I-5 Ramp over Airport Way S | Fair | 808.4 ft | 3,824 | 1967 |
| I-90 Ramp over E Fk Issaquah Creek | Fair | 125.0 ft | 3,805 | 1976 |
| W-s Ramp I-90 over I-90 | Fair | 419.0 ft | 3,805 | 1976 |
| Ferry Traffic over Puget Sound @ Seattle | Fair | 105.0 ft | 3,800 | 1971 |
| W Garfield ST Ramp over 16th AVE W | Fair | 395.0 ft | 3,800 | 1992 |
| 256th ST over SR 18 | Fair | 304.1 ft | 3,706 | 2002 |
| SE 400th ST over Newaukum Creek | Fair | 24.0 ft | 3,694 | 1927 |
| Macadam Road S. over S 133rd | Fair | 64.0 ft | 3,600 | 1997 |
| Marine View DR over Saltwater State Park | Fair | 569.9 ft | 3,507 | 1934 |
| Forest DR over Coal Creek | Fair | 104.0 ft | 3,505 | 1989 |
| I-90 over Mercer Slough | Fair | 970.1 ft | 3,203 | 1970 |
| 3rd ST SW over Sound Transit P&r Access | Fair | 80.1 ft | 3,200 | 2002 |
| NE Tolt Hill RD over Snoqualmie River | Fair | 961.9 ft | 3,200 | 2008 |
| Veazie-cumberland over Coal Creek | Fair | 57.1 ft | 3,189 | 1950 |
| 80th AVE over I-90 | Fair | 383.9 ft | 3,102 | 1988 |
| Mcgraw ST over Ravine | Fair | 237.9 ft | 3,000 | 1935 |
| I-90 Ramp over W Lake Sammamish PKWY | Fair | 362.9 ft | 2,956 | 1972 |
| 384th AVE SE over Kimball Creek | Fair | 26.9 ft | 2,930 | 1971 |
| 56th AVE So over Duwamish River | Fair | 244.1 ft | 2,900 | 1985 |
| NE Cherry Vly RD over Cherry Creek | Fair | 101.0 ft | 2,704 | 1960 |
| SR 160 over Puget Sound | Fair | 109.9 ft | 2,635 | 1993 |
| 24th AVE S over SR 518 Ramps | Fair | 362.9 ft | 2,564 | 1970 |
| SE Green Valley RD over Green River | Fair | 430.1 ft | 2,500 | 1950 |
| 45th AVE NE over Thornton Creek | Fair | 43.0 ft | 2,500 | 1949 |
| SE 66th ST over North Fork Issaquah Crk | Fair | 24.9 ft | 2,350 | 1973 |
| 148th AVE SE over Soos Creek | Fair | 29.9 ft | 2,300 | 1971 |
| S Main ST over Rr | Fair | 129.9 ft | 2,300 | 1982 |
| 218th AVE NE over Colin Creek | Fair | 32.2 ft | 2,300 | 1984 |
| Wells Avenue over Cedar River | Fair | 139.1 ft | 2,200 | 1987 |
| SR 410 over Scatter Creek | Fair | 250.0 ft | 2,068 | 1965 |
| Cumberland-kanaske over Green River | Fair | 220.1 ft | 2,061 | 1918 |
| SR 410 over Greenwater River | Fair | 92.8 ft | 1,907 | 1932 |
| SW Mt Si BLVD over Ribary Creek | Fair | 22.0 ft | 1,900 | 1989 |
| SW 34th Street over Springbrook Creek | Fair | 29.9 ft | 1,900 | 2007 |
| Mt. View RD NE over Cherry Creek | Fair | 181.1 ft | 1,877 | 1951 |
| SE 416th ST over Newaukum Creek | Fair | 69.9 ft | 1,874 | 1958 |
| SE 416th ST over Newaukum Creek | Fair | 42.0 ft | 1,874 | 2011 |
| SE Green Valley RD over Burns Creek | Fair | 47.9 ft | 1,847 | 1926 |
| Williams AVE over Cedar River | Fair | 155.2 ft | 1,825 | 1954 |
| N-n Ramp over SR 599 SB / SR 99 SB | Fair | 263.1 ft | 1,802 | 1966 |
| NE Marymoor Way over Sammamish Slough | Fair | 117.1 ft | 1,600 | 1963 |
| S Fragger Road over Mullen Slough | Fair | 65.9 ft | 1,600 | 1950 |
| SE 416th ST over Newaukum Creek | Fair | 40.0 ft | 1,592 | 1950 |
| Kelly RD NE over Cherry Creek | Fair | 71.9 ft | 1,561 | 1947 |
| SE 424th ST over Newaukum Creek | Fair | 40.0 ft | 1,500 | 1950 |
| SW 27th Street over Springbrook Creek | Fair | 30.8 ft | 1,300 | 2000 |
| NE Carnation Farm over Snoqualmie River | Fair | 330.1 ft | 1,259 | 1951 |
| Mcgilvra BLVD E over Ravine | Fair | 202.1 ft | 1,200 | 1967 |
| 5th ST N over S Fk Skykomish River | Fair | 278.9 ft | 1,160 | 1939 |
| Starfire Way over Green River | Fair | 203.1 ft | 1,150 | 1975 |
| Upper Preston RD over Raging River | Fair | 315.9 ft | 1,138 | 1974 |
| Upper Preston RD over Lake Creek | Fair | 60.0 ft | 1,112 | 1950 |
| Ferry Traffic over Puget Sound @ Tahlequah | Fair | 282.2 ft | 1,106 | 1954 |
| Ferry Traffic over Puget Sound @ Tahlequah | Fair | 107.9 ft | 1,106 | 1994 |
| Harbor AVE SW over SW Avalon Way & Railroad | Fair | 279.9 ft | 1,100 | 2001 |
| NE 159th ST over Cottage Lake Creek | Fair | 21.0 ft | 1,097 | 1987 |
| Overlake DR over Depression | Fair | 60.0 ft | 1,050 | 1951 |
| S-s Ramp over S 116th Way | Fair | 195.9 ft | 1,028 | 1966 |
| NW Woodbine Way over Trail - Mary AVE NW | Fair | 21.0 ft | 1,000 | 1928 |
| Overpass To T-5 over W. Marginal Wy S.w. | Fair | 1362.9 ft | 1,000 | 1997 |
| SR 18 Ramp over Holder CR & Hobart RD | Fair | 344.2 ft | 935 | 1996 |
| Snoqualmie Rvr RD over Patterson Creek | Fair | 51.8 ft | 798 | 1969 |
| NE 18th ST over Drainage Ditch | Fair | 36.1 ft | 798 | 1965 |
| W Snoq River RD NE over Drainage Ditch | Fair | 33.1 ft | 798 | 2008 |
| 10th Avenue NW over Side Hill Ravine | Fair | 312.0 ft | 730 | 1931 |
| 252nd AVE SE over Boise Creek | Fair | 43.0 ft | 650 | 1963 |
| 45th AVE NE over Mcaleer Creek | Fair | 24.0 ft | 600 | 1949 |
| Beach Drive NE over Mcaleer Creek | Fair | 25.9 ft | 600 | 1949 |
| Shore Drive NE over Mcaleer Creek | Fair | 24.0 ft | 600 | 1949 |
| Diablo Dam RD over Diablo Gorge | Fair | 44.9 ft | 580 | 1962 |
| Sycamore DR S.e. over Issaquah Ck. | Fair | 61.0 ft | 550 | 1968 |
| 236th AVE SE over Newaukum Creek | Fair | 48.9 ft | 520 | 1927 |
| S 375th ST over I-5 | Fair | 300.9 ft | 516 | 1959 |
| 196th AVE NE over Evans Creek | Fair | 33.1 ft | 500 | 1913 |
| Old Cascade HWY over Maloney Creek | Fair | 54.1 ft | 450 | 1982 |
| 163rd Pl SE over Wetland | Fair | 24.0 ft | 424 | 2000 |
| Ferry Traffic over Elliott Bay | Fair | 105.0 ft | 412 | 1964 |
| Black Nugget RD over N Fork Issaquah Creek | Fair | 32.2 ft | 400 | 1992 |
| SE 80th ST over Kimball Creek | Fair | 44.0 ft | 398 | 1929 |
| 196th AVE NE over Evans Creek | Fair | 23.0 ft | 397 | 1913 |
| Beacon AVE S over So Ryan Wy | Fair | 69.9 ft | 379 | 1971 |
| Franklin Road over Green River | Fair | 446.9 ft | 350 | 1914 |
| 228 Place SE over Green River | Fair | 371.1 ft | 350 | 1991 |
| NE Old Cascade HWY over S Fork Skykomish River | Fair | 254.9 ft | 343 | 1957 |
| Diablo ST over Stetattle Creek | Fair | 95.1 ft | 300 | 1941 |
| Shybear Wy NW over Wetland 1 Tributary | Fair | 57.1 ft | 280 | 2000 |
| SE 156th ST over Issaquah Creek | Fair | 40.0 ft | 253 | 1952 |
| Diablo Dam Access over Skagit River | Fair | 512.1 ft | 250 | 1930 |
| Diablo Access RD over Diablo Gorge | Fair | 60.0 ft | 220 | 1962 |
| Diablo Access Road over Skagit River | Fair | 174.9 ft | 220 | 1930 |
| Diablo Dam Access over Skagit River | Fair | 299.9 ft | 220 | 1930 |
| 187 AVE SE over Lewis Creek | Fair | 43.0 ft | 205 | 1986 |
| Diablo Camp Road over Diablo Tailrace | Fair | 111.9 ft | 205 | 1962 |
| E Interlaken BLVD over 26th AVE E | Fair | 87.9 ft | 200 | 1912 |
| Flaming Geyser RD over Beaver Creek | Fair | 60.0 ft | 200 | 2017 |
| SE 296th Pl over Olsen Creek | Fair | 55.1 ft | 200 | 2018 |
| NE 106th ST over Bear Creek | Fair | 25.9 ft | 180 | 1953 |
| 364th AVE SE over Raging River | Fair | 32.2 ft | 170 | 1996 |
| E Boston Terrace over Ravine | Fair | 248.0 ft | 160 | 1948 |
| 364th AVE SE over Raging River | Fair | 22.0 ft | 160 | 1996 |
| Avondale Pl NE over Bear Creek | Fair | 44.9 ft | 135 | 1950 |
| Road over Taylor River | Fair | 144.4 ft | 128 | 1988 |
| SE Middle Fork RD over Middle Fork Snoqualmie R | Fair | 290.0 ft | 125 | 1963 |
| Tinkham Road over S.fk. Snoqualmie River | Fair | 490.2 ft | 120 | 1972 |
| Fish Hatchery RD over Tokul Creek | Fair | 85.0 ft | 120 | 1950 |
| 229th Drive SE over Issaquah Creek | Fair | 42.0 ft | 90 | 1983 |
| Drive Uhlman RD E over Greenwater River | Fair | 105.0 ft | 80 | 1973 |
| 184th AVE SE over Unnamed Creek | Fair | 37.1 ft | 75 | 2007 |
| Dam Access Road over Weyerhaeuser Co Haul RD | Fair | 181.8 ft | 75 | 1960 |
| Tinkham RD over I-90 | Fair | 357.9 ft | 71 | 1973 |
| Road over East Fork Foss River | Fair | 109.9 ft | 60 | 1959 |
| Old Cascade HWY over Martin Ceek | Fair | 95.1 ft | 60 | 1959 |
| Road over S Fk Snoqualmie River | Fair | 211.0 ft | 50 | 1927 |
| Road over S Fk Snoqualmie River | Fair | 89.9 ft | 50 | 1964 |
| Barclay Creek Road over Barclay Creek Trib | Fair | 51.8 ft | 50 | 2006 |
| Road over Dingford Creek | Fair | 47.6 ft | 45 | 1961 |
| Road over E Fk Miller River | Fair | 129.9 ft | 44 | 1964 |
| NE Old Cascade HWY over Tye River | Fair | 61.0 ft | 40 | 1960 |
| Foss River Road over Foss River | Fair | 122.0 ft | 40 | 1951 |
| Road over Snow Creek | Fair | 72.8 ft | 33 | 1979 |
| NE Money Creek RD over Money Creek | Fair | 220.1 ft | 30 | 1958 |
| Road # 55 over Carter Creek | Fair | 60.7 ft | 25 | 1993 |
| Private Road over Granite Creek | Fair | 29.9 ft | 25 | 1967 |
| Powerline RD over Olson Creek | Fair | 65.9 ft | 25 | 1900 |
| Ballfield Road over Tibbets Creek | Fair | 23.0 ft | 20 | 1975 |
| SE 68th ST over Raging River | Fair | 49.9 ft | 15 | 1915 |
| Road over Sunday Creek | Fair | 117.1 ft | 14 | 1956 |
| SE 76th ST over Kimball Creek | Fair | 46.9 ft | 11 | 1960 |
| 300th AVE SE over Patterson Creek | Fair | 21.0 ft | 10 | 1951 |
| Road over N Fk Snoqualmie River | Fair | 149.9 ft | 9 | 1964 |
| Road over Eagle Creek | Fair | 60.0 ft | 5 | 2000 |
| Road over Taylor River | Fair | 109.9 ft | 2 | 1988 |
| Road over Hope Creek | Fair | 77.1 ft | 2 | 1980 |
| 68th AVE NE over Sammamish River | Fair | 589.9 ft | 1 | 2022 |
| Ross Dam Intake over Skagit River | Fair | 97.1 ft | 0 | 1940 |
| I-90 EB over Sunset Creek | Good | 154.2 ft | 139,482 | 2024 |
| I-90 WB over Sunset Creek | Good | 154.2 ft | 139,482 | 2024 |
| I-5 over I-405 NB / SR 518 EB | Good | 216.9 ft | 106,282 | 1966 |
| I-5 over E-n Ramp | Good | 168.0 ft | 106,282 | 1965 |
| I-5 over Southcenter BLVD | Good | 98.1 ft | 106,282 | 1965 |
| I-5 over Southcenter BLVD | Good | 84.0 ft | 106,282 | 1965 |
| I-5 over S 259th Pl | Good | 162.1 ft | 104,261 | 1960 |
| I-5 over Norfolk ST Sewer | Good | 74.1 ft | 103,312 | 1966 |
| I-5 over Military RD Rose ST | Good | 161.1 ft | 103,312 | 1966 |
| I-5 over Orillia Rd/s 188th ST | Good | 230.0 ft | 100,213 | 1963 |
| I-5 over Military RD | Good | 199.1 ft | 98,173 | 1959 |
| I-5 over S 288th ST | Good | 157.2 ft | 98,173 | 1961 |
| I-5 over S 272nd ST | Good | 150.9 ft | 92,376 | 1961 |
| I-5 over S 272nd ST | Good | 150.9 ft | 92,376 | 1961 |
| I-5 over Metro Access | Good | 40.0 ft | 92,302 | 1990 |
| I-5 over NE Northgate Way | Good | 166.0 ft | 89,154 | 1964 |
| I-405 over Pedestrian Trail | Good | 199.1 ft | 85,426 | 1956 |
| I-405 over Pedestrian Trail | Good | 243.1 ft | 85,426 | 1970 |
| I-405 over NE 116th ST | Good | 131.9 ft | 85,426 | 2007 |
| I-405 over NE 116th ST | Good | 131.9 ft | 85,426 | 2006 |
| I-405 over Cedar River | Good | 558.1 ft | 85,117 | 1994 |
| I-405 over Springbrook/oakesdale | Good | 412.1 ft | 83,533 | 2009 |
| I-405 over N-w Ramp | Good | 249.0 ft | 83,247 | 1965 |
| I-5 over NE 175th ST | Good | 163.1 ft | 82,639 | 1964 |
| I-5 over NE 175th ST | Good | 163.1 ft | 82,639 | 1964 |
| I-405 over NE 85th ST | Good | 223.1 ft | 80,423 | 1971 |
| I-405 over NE 85th ST | Good | 219.2 ft | 80,423 | 1971 |
| I-5 over SR 104 / NE 205th ST | Good | 200.1 ft | 77,329 | 1963 |
| I-5 over SR 104 / NE 205th ST | Good | 188.0 ft | 77,329 | 1963 |
| I-5 SB over Fallout Shelter | Good | 57.1 ft | 76,058 | 1963 |
| I-405 over May Creek | Good | 169.0 ft | 74,980 | 1958 |
| I-405 over May Creek | Good | 166.0 ft | 74,980 | 2023 |
| Lake Wa Blvd/112th over I-405 | Good | 119.4 ft | 73,753 | 2023 |
| I-5 over Dearborn ST | Good | 219.2 ft | 71,171 | 1965 |
| I-405 NB over NE 44th ST | Good | 133.5 ft | 70,736 | 2023 |
| I-90 over Richards RD | Good | 213.9 ft | 69,741 | 1968 |
| Lk Wash Blvd/112th over I-405 | Good | 105.6 ft | 68,675 | 2024 |
| EB I-90 over Lake Washington | Good | 890.1 ft | 68,544 | 1940 |
| Westbound I-90 over S Transit Rr Lakeview A | Good | 269.0 ft | 68,544 | 1989 |
| I-405 over Northup Way | Good | 149.0 ft | 67,108 | 1954 |
| I-405 over SR 520 | Good | 247.0 ft | 67,108 | 1966 |
| I-405 over SR 520 | Good | 241.1 ft | 67,108 | 1966 |
| I-405 over Northup Way | Good | 160.1 ft | 67,108 | 1965 |
| I-405 over 115th AVE NE & Trail | Good | 295.9 ft | 67,108 | 1965 |
| SR 167 over James ST | Good | 190.9 ft | 61,426 | 1967 |
| SR 167 over Railroad & Ped Trail | Good | 348.1 ft | 61,426 | 1967 |
| SR 167 over Cmstpp Rr | Good | 359.9 ft | 61,426 | 1967 |
| SR 167 over 4th AVE N | Good | 246.1 ft | 61,426 | 1967 |
| SR 167 over 4th AVE N | Good | 246.1 ft | 61,426 | 1967 |
| SR 518 over 42nd AVE S | Good | 207.0 ft | 59,545 | 1963 |
| SR 518 over 42nd AVE S | Good | 207.0 ft | 59,545 | 1966 |
| I-90 Westbound over Sound Transit Railroad | Good | 345.1 ft | 56,847 | 1988 |
| I-90 over Rainier AVE S | Good | 295.9 ft | 56,847 | 1992 |
| I-405 over North Creek | Good | 113.8 ft | 55,889 | 1968 |
| I-5 Nbcd over King Jackson ST | Good | 709.0 ft | 55,400 | 1965 |
| SR 167 over 84th AVE South | Good | 229.0 ft | 53,546 | 1967 |
| SR 167 over Third AVE SW | Good | 164.0 ft | 52,419 | 1977 |
| SR 18 over W Valley Hwy(old SR 181) | Good | 113.8 ft | 52,049 | 1957 |
| SR 18 over Cmstpp Rr | Good | 279.9 ft | 50,541 | 1955 |
| SR 18 over Up Rr | Good | 284.1 ft | 50,541 | 1972 |
| NE 8th ST over I-405 | Good | 328.1 ft | 48,783 | 2003 |
| I-405 over I-90 | Good | 893.0 ft | 48,783 | 2008 |
| I-90 over Issaquah Creek | Good | 126.0 ft | 46,269 | 1970 |
| I-90 over Issaquah Creek | Good | 126.0 ft | 46,269 | 1970 |
| I-405 over SR 515 | Good | 214.9 ft | 45,853 | 1964 |
| SR 520 over Pedestrian Trail | Good | 199.1 ft | 45,466 | 1966 |
| SR 520 over 130th AVE NE | Good | 210.0 ft | 45,466 | 1970 |
| SR 520 over Northup Way | Good | 376.0 ft | 45,466 | 1971 |
| SR 520 over 124 AVE NE - NW Ramp | Good | 200.1 ft | 45,466 | 1971 |
| SR 520 over 140th AVE NE | Good | 212.9 ft | 45,466 | 1972 |
| SR 520 over NE 24th ST | Good | 329.1 ft | 45,466 | 1972 |
| SR 167 NB over SR 18 | Good | 342.8 ft | 45,408 | 1973 |
| SR 167 over SR 18 | Good | 335.0 ft | 45,408 | 1973 |
| NB Airport Expy over Substation | Good | 119.1 ft | 43,000 | 2010 |
| SR 520 over PKWY & Sammamish River | Good | 391.4 ft | 42,985 | 1995 |
| Spokane ST Viaduct over E Marginal Wy 1st 4th | Good | 3332.0 ft | 42,350 | 2012 |
| WB I-90 over Tibbetts Creek | Good | 46.9 ft | 40,835 | 2004 |
| EB I-90 over Tibbetts Creek | Good | 46.9 ft | 40,835 | 2004 |
| I-5 Nbcd Ramp over Terrain | Good | 150.9 ft | 40,483 | 1965 |
| SR 202 over Little Bear Creek | Good | 40.0 ft | 40,454 | 2017 |
| Airport Nb-sb Loop over Airport Expressway | Good | 164.0 ft | 40,000 | 2010 |
| SR 99 over Detention Vault | Good | 267.1 ft | 39,625 | 2010 |
| 116th Way NE over Trib To Juanita CR | Good | 24.0 ft | 38,957 | 2023 |
| I-90 over W-s Ramp Richard RD | Good | 184.1 ft | 37,886 | 1969 |
| SR 202 over Bear Creek | Good | 76.1 ft | 36,736 | 1978 |
| I-405 Ramp over EB I-90 Ramp | Good | 82.0 ft | 36,070 | 1969 |
| 405 NE Ramp over NE Ramp Over Ped Path | Good | 24.9 ft | 36,070 | 2021 |
| NE 124th ST over Ramp/120th AVE | Good | 36.1 ft | 35,856 | 1990 |
| SR 522 over Lyon Creek | Good | 26.9 ft | 35,374 | 2015 |
| SR 522 over Swamp Creek | Good | 86.0 ft | 35,060 | 2008 |
| E Lake Sammamish over N Fork Issaquah Creek | Good | 24.0 ft | 35,000 | 2017 |
| Terminal Drive NB over S 170th ST | Good | 405.8 ft | 35,000 | 2010 |
| I-90 over E Fk Issaquah Creek | Good | 74.1 ft | 34,797 | 1976 |
| I-90 over E Fk Issaquah Creek | Good | 78.1 ft | 34,797 | 1976 |
| SR 164 over R ST | Good | 161.1 ft | 34,579 | 1970 |
| NB Airport Expy over Nae Aoa Tunnel | Good | 58.1 ft | 34,200 | 2010 |
| I-90 over E Fk Issaquah CR | Good | 53.1 ft | 34,108 | 1975 |
| Ramp I-5 To I-405 over Ramp SR 518 To I-5 | Good | 175.9 ft | 34,031 | 1966 |
| Fremont AVE N over Access RD Parking | Good | 706.0 ft | 34,000 | 2009 |
| I-405 N-e Ramp over 116th AVE NE | Good | 165.0 ft | 32,900 | 1993 |
| I-90 over Front Street | Good | 230.0 ft | 32,550 | 1971 |
| SW Admiral Way over Ravine Fairmount AVE | Good | 297.9 ft | 32,000 | 1949 |
| SR 18 over M Street | Good | 119.1 ft | 31,748 | 1984 |
| SR 18 over Bnsf Rr Spur | Good | 211.9 ft | 31,748 | 1960 |
| I-90 over Raging River | Good | 393.0 ft | 31,252 | 1975 |
| SR 516 over Wetlands | Good | 532.2 ft | 31,133 | 1994 |
| 61st AVE S over I-405 | Good | 205.1 ft | 31,000 | 1962 |
| SR 181 over Slough | Good | 43.0 ft | 30,762 | 1922 |
| SR 181 over Mill Creek | Good | 38.1 ft | 30,762 | 1922 |
| I-90 over E Fk Issaquah Creek | Good | 122.0 ft | 30,622 | 1976 |
| SR 202 over Evans Creek | Good | 69.9 ft | 30,193 | 2007 |
| SR 520 over Lake Washington | Good | 817.9 ft | 28,957 | 2016 |
| SR 520 over Lake Washington | Good | 819.9 ft | 28,957 | 2016 |
| SR 99 over City Streets & Railroad | Good | 963.9 ft | 28,886 | 2011 |
| SR 99 over Terrain | Good | 951.1 ft | 28,886 | 2011 |
| SR 99 over SR 519 (atlantic St)/rr | Good | 676.8 ft | 28,886 | 2011 |
| SR 202 over SR 522 | Good | 265.1 ft | 28,216 | 1989 |
| SR 18 over Green River | Good | 405.8 ft | 28,147 | 1995 |
| SR 18 Eastbound over Soosette Creek | Good | 339.9 ft | 28,147 | 1997 |
| SR 18 Westbound over Soosette Creek | Good | 359.9 ft | 28,147 | 1997 |
| N-n Ramp over SR 515 | Good | 175.9 ft | 27,969 | 2017 |
| S-s Ramp over SR 167 Ramp | Good | 505.2 ft | 27,736 | 2002 |
| SR 516 over Big Soos Creek | Good | 100.1 ft | 27,719 | 1994 |
| SR 18 over Bnrr Auburn-blk Diamond | Good | 307.1 ft | 27,343 | 1959 |
| SR 18 over Bnrr Auburn-blk Diamond | Good | 305.1 ft | 27,343 | 1995 |
| 405 N-e Ramp over 116th AVE NE | Good | 121.1 ft | 27,000 | 2011 |
| Redmond Way over 154th AVE NE | Good | 86.0 ft | 27,000 | 1992 |
| Ramp over Railroad | Good | 54.1 ft | 26,910 | 2023 |
| SR 515 over Garrison Creek | Good | 160.1 ft | 26,777 | 1993 |
| SR 520 over 108th AVE NE | Good | 271.0 ft | 26,760 | 1966 |
| SR 520 over 108th AVE NE | Good | 234.9 ft | 26,760 | 2013 |
| SR 520 over Yarrow Creek | Good | 21.0 ft | 26,760 | 2014 |
| SR 523 / NE 145th over I-5 | Good | 249.0 ft | 26,758 | 1964 |
| I-90 over W Snoqualmie Ic | Good | 134.8 ft | 26,372 | 1976 |
| I-90 over Game Crossing | Good | 29.9 ft | 26,372 | 1976 |
| I-90 over Game Crossing | Good | 29.9 ft | 26,372 | 1976 |
| SR 18 over Soos CR | Good | 120.1 ft | 26,257 | 1959 |
| SR 18 over Kent-black Diamond RD | Good | 271.0 ft | 26,257 | 1996 |
| SR 18 over Soos Creek | Good | 124.0 ft | 26,257 | 1996 |
| NE 45th ST over 25th AVE NE | Good | 282.2 ft | 26,000 | 1976 |
| S 277th ST over Union Pacific Rr | Good | 272.0 ft | 26,000 | 2003 |
| S 277th ST over Bnsf Rr | Good | 142.1 ft | 26,000 | 2003 |
| NE 124th ST over Sammamish River | Good | 128.0 ft | 25,500 | 2004 |
| SR 18 over F ST SE | Good | 65.9 ft | 25,441 | 1958 |
| SR 18 over SR 164 | Good | 82.0 ft | 25,441 | 1959 |
| SR 18 over Raging River | Good | 292.0 ft | 25,373 | 1962 |
| SR 18 over Terrain | Good | 141.1 ft | 25,373 | 2001 |
| SR 518 over W-s Ramp | Good | 127.0 ft | 25,358 | 1971 |
| SR 509 over Glendale Way | Good | 200.1 ft | 25,061 | 1968 |
| 15th ST SW over SR 167 | Good | 369.1 ft | 25,000 | 1975 |
| I-90 over S Fk Snoqualmie River | Good | 483.9 ft | 24,954 | 1975 |
| I-90 over S Fk Snoqualmie River | Good | 486.9 ft | 24,954 | 1975 |
| NE 4th ST over City Street And Sbcd | Good | 243.1 ft | 24,635 | 1989 |
| Sr99 over W. Fk. Hylebos Creek | Good | 24.0 ft | 24,228 | 2015 |
| Totem Lake BLVD over Trib To Juanita CR | Good | 22.6 ft | 24,107 | 2023 |
| Pine St-boren AVE over I-5 | Good | 825.1 ft | 24,000 | 1965 |
| Off Ramp 4th AVE over South Spokane Street | Good | 1041.0 ft | 24,000 | 2010 |
| Denny Way over I-5 | Good | 321.5 ft | 23,500 | 1962 |
| E Lake Sammamish over Drainage Ditch | Good | 63.0 ft | 23,000 | 1961 |
| Bellevue Way NE over SR 520 | Good | 276.9 ft | 22,813 | 2014 |
| SR 599 over 133rd ST | Good | 141.1 ft | 22,284 | 1966 |
| SR 599 over 42nd AVE S / Macadam RD | Good | 233.9 ft | 22,284 | 1968 |
| S 277th ST over Green Rv & Green Rv Rd. | Good | 466.9 ft | 22,100 | 2000 |
| SR 169 over Cedar River | Good | 244.1 ft | 22,007 | 1991 |
| SR 900 over Tibbetts CR | Good | 29.5 ft | 22,004 | 1975 |
| NE 8th Street over Kelsey Creek | Good | 27.9 ft | 21,950 | 2018 |
| NE 12 ST over I-405 | Good | 374.0 ft | 20,700 | 2011 |
| 98 AVE NE over Forbes Creek | Good | 245.1 ft | 20,400 | 1974 |
| SR 18 over Jenkins Creek | Good | 66.9 ft | 20,290 | 2002 |
| SR 18 over Jenkins Creek | Good | 65.9 ft | 20,290 | 2002 |
| SR 18 over SE 240th ST | Good | 134.8 ft | 20,290 | 2002 |
| SR 18 over SE 240th ST | Good | 123.0 ft | 20,290 | 2002 |
| NE 72nd Place over I-405 | Good | 423.9 ft | 20,179 | 1970 |
| Ne117th ST over I-5 | Good | 312.0 ft | 20,000 | 1964 |
| SR 520 over Lake Washington | Good | 5967.8 ft | 19,472 | 2017 |
| SR 520 over Lake Washington | Good | 6127.0 ft | 19,472 | 2023 |
| SR 509 over Des Moines Ck/mem Trail | Good | 82.3 ft | 19,398 | 2007 |
| Highlands DR NE over Pedestrian Tunnel | Good | 25.9 ft | 19,258 | 2003 |
| I-90 over S Fk Snoqualmie River | Good | 207.0 ft | 19,222 | 1971 |
| I-90 over S Fk Snoqualmie River | Good | 227.0 ft | 19,222 | 1971 |
| I-90 W-s Ramp over I-5 | Good | 1245.1 ft | 19,205 | 1965 |
| I-90 WB over Talapus CR Tributary | Good | 21.0 ft | 18,981 | 1972 |
| I-90 WB over Talapus Creek | Good | 22.0 ft | 18,981 | 1972 |
| I-90 EB over Talapus Creek | Good | 22.0 ft | 18,981 | 1972 |
| I-90 EB over Talapus CR Tributary | Good | 22.0 ft | 18,981 | 1972 |
| SR 599 over I-5 (sb Lanes Only) | Good | 300.9 ft | 18,948 | 1966 |
| 150th AVE SE over I-90 | Good | 402.9 ft | 18,919 | 1973 |
| I-90 over Garcia Interchange | Good | 116.1 ft | 18,876 | 1974 |
| I-90 over Homestead Valley RD | Good | 104.0 ft | 18,876 | 1974 |
| I-90 over S Fk Snoqualmie R | Good | 301.8 ft | 18,876 | 1974 |
| I-90 over S Fk Snoqualmie R | Good | 313.0 ft | 18,876 | 1974 |
| I-90 over So Fk Snoqualmie R | Good | 140.1 ft | 18,876 | 1976 |
| 154th Place SE over Cedar River | Good | 405.8 ft | 18,726 | 2005 |
| I-5 over Klickitat Drive | Good | 140.1 ft | 18,644 | 1998 |
| Newport Way S.w. over Issaquah Creek | Good | 243.1 ft | 18,300 | 2000 |
| NE 116th ST over Railroad | Good | 128.9 ft | 18,100 | 2012 |
| I-90 over 468th AVE SE | Good | 174.9 ft | 18,090 | 1971 |
| SR 513 over Pedestrian Trail | Good | 26.9 ft | 17,966 | 2023 |
| SR 202 over Sammamish Crk | Good | 26.6 ft | 17,808 | 2024 |
| SR 18 over Cedar River SE Bain RD | Good | 351.0 ft | 16,971 | 2005 |
| SR 18 over SR 169 Maxwell Taylor CR | Good | 521.0 ft | 16,971 | 2005 |
| SR 18 over SR 169 Maxwell Taylor CR | Good | 603.0 ft | 16,971 | 2004 |
| SR 18 over 244th AVE SE | Good | 122.0 ft | 16,971 | 2005 |
| SR 18 over 244th AVE SE | Good | 122.0 ft | 16,971 | 2006 |
| SR 18 over Taylor Creek | Good | 144.0 ft | 16,971 | 2005 |
| SR 18 over Taylor Creek | Good | 144.0 ft | 16,971 | 2006 |
| SR 18 over Taylor Creek | Good | 109.9 ft | 16,971 | 2005 |
| SR 18 over Taylor Creek | Good | 109.9 ft | 16,971 | 2004 |
| Access (avondale) over Ramp & NE 76th | Good | 226.0 ft | 16,578 | 1996 |
| Newport Way SW over Tibbetts Creek | Good | 26.2 ft | 16,500 | 2001 |
| N-e Ramp over Occidental AVE S | Good | 498.0 ft | 16,470 | 1998 |
| W-w Ramp over SR 202 Bnrr | Good | 435.0 ft | 16,261 | 2007 |
| 14/16th AVE SE over Duwamish River | Good | 920.9 ft | 16,000 | 2014 |
| S 216th ST over I-5 | Good | 290.0 ft | 15,928 | 1963 |
| SR 99 over SR 99 NB SR 99 Nb/ramp | Good | 179.1 ft | 15,919 | 2015 |
| SR 18 over Carey CR Trib | Good | 113.8 ft | 15,522 | 1996 |
| SR 18 over Carey Creek | Good | 117.1 ft | 15,522 | 1996 |
| SR 18 over Carey Creek Tributary | Good | 64.0 ft | 15,522 | 1995 |
| SR 202 over Evans Creek | Good | 69.9 ft | 15,091 | 2006 |
| SR 202 WB over Evans Creek | Good | 115.2 ft | 15,091 | 2006 |
| SR 202 over Detention Vault | Good | 251.0 ft | 15,091 | 2007 |
| Yale ST Ramp over I-5 Rev Ramp | Good | 61.4 ft | 15,088 | 1962 |
| SR 18 over SR 516 | Good | 259.8 ft | 15,002 | 1979 |
| SR 18 over SR 516 | Good | 296.9 ft | 15,002 | 1997 |
| NE 10th Street over I-405 | Good | 372.0 ft | 15,000 | 2009 |
| SR 509 over So 168th ST | Good | 170.9 ft | 14,997 | 1979 |
| SR 509 over Des Moines Memorial | Good | 299.9 ft | 14,997 | 1979 |
| Eastlake AVE over I-5 Ramps | Good | 125.0 ft | 14,621 | 1963 |
| SR 202 over Detention Vault | Good | 152.9 ft | 14,605 | 2007 |
| NE 51st Street over SR 520 | Good | 228.0 ft | 14,591 | 1987 |
| E-n Ramp over Southcenter BLVD | Good | 91.9 ft | 14,537 | 1965 |
| NE 4th ST over Stormwater Facility | Good | 49.9 ft | 14,500 | 2013 |
| SR 169 over Ravensdale Creek | Good | 121.1 ft | 14,429 | 2022 |
| S-e Ramp I-405 over SR 520 | Good | 720.1 ft | 14,260 | 1993 |
| I-5 over N-w Ramp E-n Ramp | Good | 95.1 ft | 14,227 | 1967 |
| 35th AVE NE over Thorton Creek | Good | 37.1 ft | 13,900 | 2014 |
| Main ST over Stormwater Facility | Good | 88.9 ft | 13,683 | 2021 |
| 140th AVE NE over Kelsey Creek | Good | 37.1 ft | 13,668 | 1972 |
| NW Sammamish Road over Tributary 170 | Good | 25.9 ft | 13,500 | 2008 |
| SR 203 over Deer Creek | Good | 54.1 ft | 13,456 | 1946 |
| SR 203 over Loutsis Creek | Good | 49.9 ft | 13,456 | 2020 |
| S178th ST over I-5 | Good | 321.9 ft | 13,400 | 1964 |
| I-5 over Terrain | Good | 732.0 ft | 13,125 | 1962 |
| SR 203 over Clemons Creek | Good | 26.9 ft | 13,062 | 2015 |
| SR 99 Off Ramp over Ramp And Terrain | Good | 399.9 ft | 13,058 | 2019 |
| I-5 S-w N-w Ramps over Airport Way | Good | 636.2 ft | 12,879 | 1967 |
| S-w Ramp over Lucile ST & Rr | Good | 549.9 ft | 12,879 | 1967 |
| SR 18 over Lake Creek | Good | 54.1 ft | 12,687 | 2023 |
| E-n Ramp over I-5 | Good | 338.9 ft | 12,553 | 1966 |
| SR 522 over North CR & Gillman Trail | Good | 140.1 ft | 12,517 | 1960 |
| SR 522 over North CR & Gillman Trail | Good | 141.1 ft | 12,517 | 1967 |
| Military RD over SR 18 | Good | 318.9 ft | 12,502 | 1958 |
| 108th AVE NE over Yarrow Creek | Good | 23.0 ft | 12,500 | 2014 |
| SR 516 over Mullen Slough & Dirt Rd. | Good | 266.1 ft | 12,389 | 1983 |
| SR 516 over Green River | Good | 367.1 ft | 12,389 | 1984 |
| Lakemont BLVD over Lewis Creek | Good | 44.9 ft | 12,334 | 1990 |
| SR 509 over 1st AVE S | Good | 83.0 ft | 12,319 | 1961 |
| SR 202 over S Fk Snoqualmie River | Good | 109.9 ft | 12,263 | 1976 |
| City ST - 76th AVE over I-90 | Good | 359.9 ft | 12,230 | 1989 |
| SR 99 over SR 509 | Good | 256.9 ft | 12,230 | 2022 |
| NE 124th ST over Snoqualmie River | Good | 624.0 ft | 12,222 | 2000 |
| NE Union Hill Rd. over Evans Creek | Good | 68.9 ft | 12,178 | 2013 |
| Pike ST over I-5 | Good | 282.2 ft | 12,100 | 1964 |
| SR 99 over Mercer ST | Good | 128.9 ft | 12,045 | 2015 |
| 66th AVE S over I-405 | Good | 205.1 ft | 12,000 | 1990 |
| W Lk Sam PKWY SE over Tibbetts Creek | Good | 41.3 ft | 12,000 | 2001 |
| So 152nd ST over SR 509 | Good | 224.1 ft | 11,984 | 1971 |
| SE 304th ST over Soosette Creek | Good | 580.1 ft | 11,963 | 1997 |
| 304th ST over SR 18 | Good | 258.9 ft | 11,963 | 1997 |
| So 160th ST over SR 509 | Good | 253.0 ft | 11,946 | 1971 |
| SR 522 over North CR & Gillman Trail | Good | 140.1 ft | 11,919 | 1968 |
| I-90 over City Streets | Good | 1222.1 ft | 11,916 | 1991 |
| SR 18 over Holder CR Hobart RD | Good | 304.1 ft | 11,615 | 1961 |
| SR 18 over Holder CR Hobart RD | Good | 327.1 ft | 11,615 | 1996 |
| SR 202 over Meadowbrook Slough | Good | 24.0 ft | 11,531 | 1995 |
| 77th AVE SE over I-90 | Good | 287.1 ft | 11,507 | 1989 |
| Highlands DR over I-90 E Fk Issaquah CR | Good | 374.0 ft | 11,503 | 2003 |
| E-e Ramp over N-e Ramp From Front ST | Good | 1443.9 ft | 11,459 | 2003 |
| SB I-405 Ramp over Benson Road | Good | 252.0 ft | 11,338 | 2010 |
| I-405 Nbcd over North Creek | Good | 117.1 ft | 11,022 | 1998 |
| SR 900 over Wetlands | Good | 49.9 ft | 11,002 | 2002 |
| I-90 W-n Ramp over 4th AVE And Sound Trans | Good | 1154.9 ft | 11,000 | 2010 |
| 96th AVE NE over Kc Trail | Good | 50.5 ft | 10,916 | 1989 |
| Lind AVE (88th AVE over I-405 | Good | 220.1 ft | 10,800 | 1990 |
| Olive Way over I-5 | Good | 293.0 ft | 10,759 | 1962 |
| SR 169 over Newaukum Creek | Good | 46.9 ft | 10,724 | 1988 |
| SR 164 over Pussyfoot Creek | Good | 168.0 ft | 10,707 | 2021 |
| I-405 over Terrain | Good | 433.1 ft | 10,582 | 1968 |
| NE W-d RD over Tuck Creek | Good | 22.6 ft | 10,500 | 2017 |
| Woodinville Duvall over Tuck Creek | Good | 33.1 ft | 10,500 | 2023 |
| SR 202 over SR 202 Over Skunk Creek | Good | 69.2 ft | 10,490 | 2024 |
| SR 203 over Slough | Good | 58.1 ft | 10,445 | 1945 |
| SR 203 over Slough | Good | 68.9 ft | 10,445 | 1945 |
| SR 203 over Slough | Good | 64.0 ft | 10,445 | 1984 |
| S 144th ST over I-5 Sound Transit Rr | Good | 329.1 ft | 10,356 | 1965 |
| SR 167 SB Off-ramp over Springbrook Creek | Good | 137.1 ft | 10,341 | 1986 |
| Ramp over Collector Distributor | Good | 374.0 ft | 10,323 | 2004 |
| Ramp 45th To I-5 N over Ramp NB I-5 To 50th | Good | 44.3 ft | 10,276 | 1961 |
| Ferry Traffic over Puget Sound @ Seattle | Good | 89.9 ft | 10,212 | 1990 |
| S 156th Way over Miller Creek | Good | 48.9 ft | 10,150 | 2005 |
| I-5 SB Hov Lane over Interurban AVE | Good | 158.1 ft | 10,117 | 1996 |
| I-5 S Ramp To 45th over 50th Ramp To I-5 S | Good | 243.1 ft | 10,013 | 1961 |
| Spokane Street over Spokane Street | Good | 547.9 ft | 10,000 | 2012 |
| SE Issq-fall Cty over Wetland | Good | 408.1 ft | 10,000 | 2021 |
| I-405 S-w Ramp over Northup Way | Good | 136.2 ft | 9,907 | 1966 |
| S-w & S-e Ramps over 115th AVE NE & Trail | Good | 232.0 ft | 9,907 | 1966 |
| I-405-SR 520 Nbcd over I-405 N-e & N-w Ramps | Good | 440.0 ft | 9,875 | 2011 |
| Waynita Drive NE over Sammamish River | Good | 160.1 ft | 9,869 | 1947 |
| I-90 E-s Ramp over I-5/AIRPORT Way Ramp | Good | 640.1 ft | 9,815 | 1965 |
| Benson Road over I-405 | Good | 520.0 ft | 9,777 | 2010 |
| S-w Ramp over Campus Way NE | Good | 129.9 ft | 9,760 | 2008 |
| SR 202 over Tokul Creek | Good | 216.9 ft | 9,740 | 1984 |
| SR 160 over Puget Sound @ Fauntleroy | Good | 105.0 ft | 9,721 | 1984 |
| SE 180th AVE over SR 18 | Good | 188.0 ft | 9,610 | 1988 |
| SR 203 over Drainage Channel | Good | 42.7 ft | 9,478 | 1946 |
| N-e Ramp over Cd Ramp And Terrain | Good | 747.0 ft | 9,425 | 2011 |
| W-w Ramp/3rd ST over C ST SW | Good | 180.1 ft | 9,417 | 2002 |
| SR 202 over Sammamish R | Good | 158.1 ft | 9,203 | 1963 |
| SR 202 over Sammamish R | Good | 140.1 ft | 9,203 | 2019 |
| 15th AVE NE over Thornton CR Ravine | Good | 475.1 ft | 9,189 | 1949 |
| SE 28th ST over I-90 E-s Ramp | Good | 121.1 ft | 9,120 | 1992 |
| W. Sunset Wy over Issaquah Ck | Good | 80.1 ft | 9,100 | 1996 |
| Island Crest Way over I-90 | Good | 257.9 ft | 9,063 | 1989 |
| 16th AVE SW over Klickitat AVE SW Rr | Good | 1084.0 ft | 9,000 | 2001 |
| SR 202 over Sammamish R | Good | 168.0 ft | 8,961 | 1955 |
| I-5 Ramp over Northgate Way | Good | 164.0 ft | 8,939 | 1995 |
| I-405 Ramp over Southcenter BLVD | Good | 196.9 ft | 8,919 | 1994 |
| SR 167 SB Hov over SR 18 | Good | 311.0 ft | 8,847 | 2016 |
| SR 167 Off Ramp NB over Springbrook Creek | Good | 133.9 ft | 8,813 | 1986 |
| S 156th ST over SR 509 | Good | 243.1 ft | 8,754 | 1970 |
| Issaquah-hobart RD over Holder Creek | Good | 69.9 ft | 8,691 | 1996 |
| SR 167 On Ramp SB over Garrison CR Tributary | Good | 136.2 ft | 8,661 | 1986 |
| S 154th ST over SR 518 | Good | 556.1 ft | 8,626 | 1971 |
| E-n Ramp over SR 900 | Good | 232.0 ft | 8,589 | 1997 |
| Harbor AVE SW over SW Avalon Way & Railroad | Good | 213.9 ft | 8,535 | 2001 |
| East Mercer Way over I-90 | Good | 237.9 ft | 8,510 | 1988 |
| 124 NE AVE NE over West Tributary | Good | 27.6 ft | 8,500 | 2024 |
| E-n Ramp SR 520 over I-405 & SR 520 | Good | 1111.9 ft | 8,411 | 1993 |
| SR 520 E-n Ramp over Northup Way | Good | 162.1 ft | 8,411 | 1993 |
| N-w Ramp over SR 520 | Good | 259.8 ft | 8,364 | 1966 |
| Sbcd Ramp over Collector Distributor | Good | 487.9 ft | 8,340 | 2004 |
| SW Spokane ST over Rr | Good | 65.9 ft | 8,297 | 2001 |
| Witte Road over Park Trail | Good | 34.1 ft | 8,100 | 1996 |
| Witte Road over Jenkins Creek | Good | 24.0 ft | 8,100 | 2022 |
| 148th St-w Ramp over I-90 Wbcd Ramp | Good | 1095.1 ft | 8,050 | 1973 |
| N-e Ramp over Trail | Good | 495.1 ft | 8,000 | 2011 |
| Colorado AVE over SR 99 | Good | 550.9 ft | 8,000 | 2013 |
| Alaskan Way South over Bnsf Rr | Good | 875.0 ft | 8,000 | 2013 |
| Yesler Way over 4th AVE S | Good | 82.0 ft | 8,000 | 1909 |
| Ramp over I-90 Ramps City Street | Good | 1742.1 ft | 7,946 | 1973 |
| 195th Ave. NE over Tributary | Good | 45.9 ft | 7,945 | 2012 |
| Oakesdale AVE SW over Springbrook Creek | Good | 137.1 ft | 7,866 | 1998 |
| SR 203 over Slough | Good | 210.0 ft | 7,813 | 1986 |
| NE 4th Street over I-405 | Good | 29.9 ft | 7,745 | 1987 |
| S136th ST over SR 509 | Good | 209.0 ft | 7,669 | 1969 |
| Ramp over Railroad Shared Use Path | Good | 98.4 ft | 7,611 | 2023 |
| SR 509 over SR 509/des Moines Mem | Good | 85.0 ft | 7,555 | 1979 |
| N-e Ramp over 4th AVE S | Good | 283.1 ft | 7,545 | 2003 |
| Rainier Blvd. N. over East Fork Issaquah Creek | Good | 57.1 ft | 7,500 | 2004 |
| W-n I-90 Ramp over Pedestrian-bike Path | Good | 29.9 ft | 7,337 | 1988 |
| N-w Ramp over I-405 N-e Ramp | Good | 386.2 ft | 7,291 | 2015 |
| 292nd AVE SE over Patterson Creek | Good | 69.2 ft | 7,269 | 2012 |
| N 85th To SB I-5 over I-5 SB Ramp To NE 80th | Good | 60.0 ft | 7,194 | 1964 |
| SR 202 over Patterson Crk East Trib | Good | 24.0 ft | 7,187 | 2020 |
| I-405 Ramp over Southcenter BLVD | Good | 185.0 ft | 7,007 | 1994 |
| Ramp Access Road over Green River | Good | 232.0 ft | 7,007 | 1994 |
| Lakeview BLVD over I-5 | Good | 1214.9 ft | 7,000 | 1963 |
| NE 30th ST over SR 405 | Good | 189.0 ft | 6,937 | 1981 |
| N-e Ramp over SE 8th ST | Good | 524.9 ft | 6,904 | 2003 |
| I-5 Hov Lanes over I-405 NB Ramps | Good | 894.0 ft | 6,898 | 1996 |
| I-5 NB Hov over Southcenter BLVD | Good | 129.9 ft | 6,898 | 1996 |
| S 317th ST over SB I-5 Ramp | Good | 128.0 ft | 6,850 | 2006 |
| 73rd AVE NE over Swamp Creek | Good | 63.0 ft | 6,800 | 2005 |
| I-5 SB Hov over Klickitat DR | Good | 170.9 ft | 6,692 | 1996 |
| I-5 Sbcd over SR 104/205th ST | Good | 189.0 ft | 6,627 | 1995 |
| 124th AVE NE over Sound Transit Light Rail | Good | 41.0 ft | 6,597 | 2019 |
| 124th AVE SE over Storwater Facility | Good | 155.8 ft | 6,597 | 2021 |
| US 2 over Stream | Good | 69.9 ft | 6,540 | 1986 |
| Dearborn-n Ramp over I-5 Nbcd | Good | 749.0 ft | 6,516 | 1965 |
| S 116th ST over Drainage Ditch-relief | Good | 174.9 ft | 6,500 | 2020 |
| US 2 over Stream | Good | 46.9 ft | 6,441 | 1937 |
| US 2 over Bnrr | Good | 355.0 ft | 6,441 | 1986 |
| US 2 over Beaver Creek | Good | 58.1 ft | 6,441 | 1986 |
| US 2 over Stream | Good | 61.0 ft | 6,441 | 1988 |
| US 2 over Stream | Good | 61.0 ft | 6,441 | 1988 |
| US 2 over Slough | Good | 77.1 ft | 6,441 | 1989 |
| NE Lk Wash. BLVD over Meydenbauer Beach Park | Good | 265.1 ft | 6,267 | 2002 |
| US 2 over Slough | Good | 69.9 ft | 6,180 | 1986 |
| US 2 over Stream | Good | 68.9 ft | 6,180 | 1986 |
| SE 216th Way over Cedar River Trail | Good | 24.0 ft | 6,082 | 1994 |
| SR 18 Ramp over Soosette Creek | Good | 359.9 ft | 6,021 | 1997 |
| SE May Valley Road over May Creek | Good | 36.1 ft | 6,018 | 2010 |
| Redmond Ridge NE over Wetland | Good | 194.9 ft | 5,998 | 2001 |
| W-n Ramp over Terrain | Good | 410.1 ft | 5,951 | 1967 |
| SE North Bend Way over Kimball Creek | Good | 91.9 ft | 5,809 | 1941 |
| US 2 over Alpine Creek | Good | 40.0 ft | 5,692 | 1998 |
| E-n Ramp over I-5 | Good | 516.4 ft | 5,684 | 1965 |
| US 2 over Tye River | Good | 220.1 ft | 5,641 | 1947 |
| US 2 over Tye River | Good | 140.1 ft | 5,641 | 1998 |
| So 146th ST over SR 509 | Good | 295.9 ft | 5,632 | 1970 |
| E Marginal Way over SR 599 | Good | 240.2 ft | 5,600 | 1967 |
| US 2 over Tye River | Good | 98.1 ft | 5,590 | 1947 |
| 37th ST NW over SR 167 | Good | 273.0 ft | 5,527 | 1971 |
| 4th AVE NW over North Fork Issaquah CR | Good | 43.0 ft | 5,500 | 2011 |
| SE 62nd Street over Issaquah Creek | Good | 794.0 ft | 5,500 | 2019 |
| Lake Wa BLVD over May Creek | Good | 62.0 ft | 5,478 | 1996 |
| S 208th ST over SR 167 & Springbrook CR | Good | 246.1 ft | 5,460 | 1963 |
| NE 95th ST over Stensland Creek | Good | 25.3 ft | 5,360 | 2010 |
| Landsburg Road over Cedar River | Good | 131.9 ft | 5,335 | 1982 |
| 120th AVE NE over Sound Transit Light Rail | Good | 58.1 ft | 5,298 | 2017 |
| 120th AVE NE over Stormwater Facility | Good | 122.7 ft | 5,298 | 2016 |
| Princeton AVE NE over Burke Gilman Trail | Good | 106.0 ft | 5,233 | 2002 |
| Veterans Dr. over Green River | Good | 356.0 ft | 5,200 | 2006 |
| Delmar Drive over SR 520 | Good | 153.9 ft | 5,000 | 1963 |
| I-405 N-e Ramp over Northup Way | Good | 332.0 ft | 5,000 | 2011 |
| I-405 N-e Ramp over SR 520 Ramps | Good | 274.9 ft | 5,000 | 2011 |
| SR 167 Flyover over I-405 NB SR 167 NB | Good | 1846.1 ft | 5,000 | 2018 |
| SR 518 EB Off Ramp over 8th AVE | Good | 175.9 ft | 5,000 | 2018 |
| 72nd Avenue South over Mill Creek | Good | 106.0 ft | 5,000 | 2017 |
| 24th AVE SW over Longfellow Creek | Good | 38.1 ft | 5,000 | 1988 |
| SE 244 ST over Soos Creek | Good | 44.0 ft | 4,883 | 2009 |
| I-5 over Terrain | Good | 391.1 ft | 4,737 | 1969 |
| SR 160 over Puget Sound @ Pt Vashon | Good | 105.0 ft | 4,675 | 1997 |
| SR 520 N-e Ramp over W L Sammamish Pkwy/river | Good | 376.3 ft | 4,606 | 2010 |
| SE Jones Road over Cedar River & Trail | Good | 290.7 ft | 4,560 | 2003 |
| N.w.dogwood ST over Issaquah Ck | Good | 95.1 ft | 4,500 | 2015 |
| I-5 Exp Ramp over I-5 NB I-5 Express Ramp | Good | 423.6 ft | 4,447 | 1962 |
| SE May Valley RD over Issaquah Creek | Good | 101.0 ft | 4,279 | 2009 |
| I-5 Ramp over Terrain | Good | 872.0 ft | 4,018 | 1967 |
| Covington Way SE over SR 18 | Good | 328.1 ft | 4,000 | 1997 |
| E-s Ramp over Building Parking Lot | Good | 233.9 ft | 4,000 | 2003 |
| 28th To 24th AVE S over Terrain (future SR 509) | Good | 128.9 ft | 4,000 | 2017 |
| N-w Ramp over Railroad | Good | 291.0 ft | 3,978 | 1967 |
| NB Ramp over N-e Ramp | Good | 273.0 ft | 3,951 | 1975 |
| NE 6th ST over 114th AVE NE I-405 | Good | 243.1 ft | 3,912 | 2004 |
| SR 520 W-n Ramp over Sammamish Pkwy/river | Good | 399.9 ft | 3,902 | 2010 |
| WB SR 18 To 304th over Soosette Creek | Good | 390.1 ft | 3,899 | 1997 |
| I-5 over Terrain | Good | 181.1 ft | 3,835 | 1963 |
| 15 SW To Supermall over 15th ST SW | Good | 478.0 ft | 3,700 | 1995 |
| Fairview AVE N over Union Bay | Good | 404.9 ft | 3,600 | 2021 |
| Main ST over I-405 | Good | 290.0 ft | 3,519 | 2023 |
| SE Mt. Si RD over Mf Snoqualmie R | Good | 366.1 ft | 3,500 | 2008 |
| NE 60th ST over SR 520 | Good | 253.9 ft | 3,200 | 1980 |
| Royal Brougham Way over Railroad | Good | 666.0 ft | 3,200 | 2010 |
| Kelly RD NE over Harris Creek | Good | 80.1 ft | 3,101 | 2005 |
| S 218th Street over Garrison Creek | Good | 30.8 ft | 3,000 | 2019 |
| Saybrook Drive NE over Bear Creek | Good | 22.0 ft | 3,000 | 1992 |
| North Creek PKWY over North Creek | Good | 77.1 ft | 2,939 | 1984 |
| North Mercer Way over I-90 | Good | 254.9 ft | 2,922 | 1989 |
| NE 165th Street over Cottage Lake Creek | Good | 42.0 ft | 2,900 | 2010 |
| Ramp over E Issaquah Creek | Good | 492.1 ft | 2,855 | 2003 |
| 284th Ave. SE over Newaukum Creek | Good | 35.1 ft | 2,855 | 2012 |
| N.w. Juniper St. over Issaquah Creek | Good | 102.0 ft | 2,800 | 2005 |
| US 2 over Tunnel Creek | Good | 190.0 ft | 2,795 | 1941 |
| US 2 over Tunnel Creek | Good | 169.9 ft | 2,795 | 1985 |
| Aberdeen AVE NE over SR 900 | Good | 225.1 ft | 2,700 | 1967 |
| Sylvester Road SW over Fox Creek | Good | 225.1 ft | 2,700 | 2012 |
| 244th AVE NE over Wetland | Good | 605.0 ft | 2,700 | 2010 |
| 135th AVE NE over Woodin Creek | Good | 76.1 ft | 2,570 | 2018 |
| Exp N To 42nd Ramp over Pasadena Pl NE | Good | 273.0 ft | 2,542 | 1962 |
| I-5 over Sdot Maintenance Yard | Good | 459.0 ft | 2,510 | 1966 |
| 72nd AVE SE over First Hill Lid | Good | 298.9 ft | 2,472 | 1992 |
| I-90 Ramp over Mercer Slough I-90 | Good | 2996.1 ft | 2,421 | 1995 |
| 134th AVE NE over Kelsey Creek | Good | 61.0 ft | 2,329 | 1987 |
| S-s Ramp over SR 515 | Good | 174.9 ft | 2,326 | 2017 |
| W Howe ST over 32nd AVE W Ravine | Good | 279.9 ft | 2,300 | 1946 |
| SW 16th Street over Springbrook Creek | Good | 64.0 ft | 2,250 | 1991 |
| SE 244th ST over Taylor Creek | Good | 69.9 ft | 2,212 | 2005 |
| NE Spring BLVD over Sound Transit Light Rail | Good | 137.1 ft | 2,206 | 2017 |
| NE Spring BLVD over Sound Transit Light Rail | Good | 167.0 ft | 2,206 | 2017 |
| NE Spring BLVD over Stormwater Facility | Good | 71.9 ft | 2,206 | 2018 |
| NE 116th Street over Sammamish River | Good | 220.1 ft | 2,200 | 2006 |
| S 228th Street over Bnsf Rr | Good | 128.0 ft | 2,200 | 2009 |
| S 224th Street over SR 167 88th AVE S | Good | 439.0 ft | 2,200 | 2019 |
| S 228th Street over Uprr | Good | 221.1 ft | 2,200 | 2021 |
| N-w Ramp over I-5 | Good | 1282.2 ft | 2,190 | 1966 |
| 1st Avenue Ramp over S Spokane ST | Good | 288.1 ft | 2,030 | 2014 |
| 212th Way SE over Newaukum Creek | Good | 64.0 ft | 2,024 | 2000 |
| NE Noaa DR over 62nd AVE NE | Good | 36.1 ft | 2,000 | 1980 |
| Elliott Way Pl over Railroad Alleyway | Good | 496.1 ft | 2,000 | 2023 |
| Renton AVE S over SR 405 | Good | 142.1 ft | 1,981 | 1994 |
| SR 410 over Slippery Creek | Good | 78.1 ft | 1,907 | 1967 |
| SE 416th ST over Newaukum Creek | Good | 41.0 ft | 1,874 | 2009 |
| SE 200th over SR 18 | Good | 392.1 ft | 1,800 | 2004 |
| SE 424th ST over Newaukum Creek | Good | 47.2 ft | 1,750 | 1928 |
| Norvydan RD over Taylor Creek | Good | 105.0 ft | 1,600 | 2005 |
| W Fort ST over Railroad | Good | 129.9 ft | 1,600 | 1986 |
| 284th AVE SE over Drainage Ditch | Good | 33.1 ft | 1,600 | 2023 |
| 328 Way SE over Raging River | Good | 125.0 ft | 1,563 | 1998 |
| Cedar AVE S over I-405 | Good | 146.0 ft | 1,550 | 1993 |
| 468th AVE SE over S Fk Snoqualmie River | Good | 212.9 ft | 1,510 | 2004 |
| E-e Ramp over I-90 Ramps Mercer Sl | Good | 1333.0 ft | 1,375 | 1993 |
| SR 522 over E-n Ramp Br | Good | 210.0 ft | 1,285 | 1968 |
| Hov On/off Ramps over I-90 | Good | 53.1 ft | 1,266 | 2006 |
| NE Carn. Farm RD over Slough | Good | 60.0 ft | 1,259 | 1997 |
| NE Carn. Farm RD over Slough | Good | 40.0 ft | 1,259 | 1998 |
| 142nd Pl SE over I-90 Ramps City Street | Good | 1012.1 ft | 1,250 | 1976 |
| 428th AVE SE over Middle Fork Snoqualmie R | Good | 393.0 ft | 1,226 | 1984 |
| Cascade Key over Coal Creek | Good | 36.1 ft | 1,217 | 2018 |
| NE 128th ST over SB I-405 | Good | 124.0 ft | 1,200 | 2006 |
| N.e. Dogwood St. over E.fk. Issaquah Ck. | Good | 60.0 ft | 1,200 | 1996 |
| SE Summit Landsbur over Rock Creek | Good | 59.7 ft | 1,200 | 2022 |
| 8th AVE NW over Ravine | Good | 181.1 ft | 1,150 | 1950 |
| 172nd AVE SE over Soos Creek | Good | 37.1 ft | 1,150 | 2009 |
| 168th Way SE over Covington Creek | Good | 194.9 ft | 1,080 | 1964 |
| Sr99 Off Ramp over Detention Vault | Good | 58.1 ft | 1,000 | 2017 |
| S Lander ST over Rr Uxing | Good | 485.9 ft | 1,000 | 2019 |
| I-90 EB On Ramp over Relief | Good | 230.0 ft | 983 | 1989 |
| S 373rd ST over Hylebos Creek | Good | 35.1 ft | 900 | 2007 |
| SE 188th ST over SR 18 | Good | 258.9 ft | 850 | 1996 |
| Park Entrance over Smith Creek | Good | 32.2 ft | 850 | 1992 |
| Riverview Blvd. S over Veterans Dr. | Good | 146.0 ft | 750 | 2007 |
| NW 57th ST over Rr Track | Good | 115.2 ft | 730 | 1986 |
| NW 8th ST over Ribary Creek | Good | 88.9 ft | 700 | 2006 |
| W Sno Valley RD over Drainage Ditch | Good | 30.8 ft | 660 | 2016 |
| NW 195th Ct over Bnsf Rr | Good | 53.1 ft | 650 | 2011 |
| E-n Ramp over 4th AVE Buildings | Good | 215.9 ft | 606 | 2003 |
| Hov On/off Ramp over I-90 | Good | 161.1 ft | 583 | 2006 |
| Lakeside BLVD E over Kent Lakes | Good | 22.0 ft | 570 | 1985 |
| Tibbetts Ck LN NW over Tibbets Creek | Good | 60.0 ft | 525 | 2008 |
| SW Michigan ST over Wetland Mit. Channel | Good | 64.0 ft | 515 | 1996 |
| 112th AVE SE over Sound Transit Light Rail | Good | 310.0 ft | 500 | 2023 |
| EB SR 18 On Ramp over Taylor Creek | Good | 144.0 ft | 490 | 2006 |
| SE 248th ST over Rock Creek | Good | 62.0 ft | 465 | 2003 |
| WB I-90 Ramp over Relief | Good | 190.0 ft | 434 | 2007 |
| Tokul Road SE over Tokul Creek | Good | 104.0 ft | 415 | 2023 |
| SR 18 over 244th AVE SE | Good | 119.1 ft | 411 | 2005 |
| SW Nevada ST over Longfellow Creek | Good | 107.0 ft | 400 | 1988 |
| 248 TH AVE SE over Newaukum Creek | Good | 24.9 ft | 394 | 1939 |
| SE 261st Street over Little Soos Creek | Good | 54.1 ft | 350 | 2006 |
| Stoney Creek Drive over Stoney Creek | Good | 44.0 ft | 350 | 2007 |
| SE Lake Walker RD over Coal Creek | Good | 57.1 ft | 350 | 2023 |
| Skagit Key over Coal Creek | Good | 33.1 ft | 340 | 2017 |
| 310th AVE SE over Patterson Creek | Good | 37.1 ft | 338 | 2008 |
| 308th AVE SE over Patterson Creek | Good | 33.1 ft | 330 | 2008 |
| Newport Key over Coal Creek | Good | 33.1 ft | 287 | 2018 |
| Glacier Key over Coal Creek | Good | 33.1 ft | 238 | 2019 |
| Road over S Fk Snoqualmie River | Good | 126.0 ft | 232 | 2004 |
| SE 86th Street over Raging River | Good | 243.1 ft | 210 | 2003 |
| SE 208th ST over Rock Creek | Good | 62.0 ft | 200 | 1994 |
| 264th AVE SE over Patterson Creek | Good | 33.1 ft | 171 | 2008 |
| N 40th Place over May Creek | Good | 86.0 ft | 165 | 2007 |
| Road over Foss River | Good | 109.9 ft | 156 | 1962 |
| Road over Burns Creek | Good | 61.0 ft | 156 | 1999 |
| Cw Neal Road over Drainage Ditch | Good | 32.2 ft | 150 | 2007 |
| 364th AVE SE over Raging River | Good | 27.9 ft | 150 | 2014 |
| SE 424th ST over Watercress Creek | Good | 30.8 ft | 140 | 2011 |
| Skagit Key over Coal Creek | Good | 35.1 ft | 139 | 2019 |
| SE Lk Dorothy RD over Unnamed Tributary | Good | 22.0 ft | 125 | 2015 |
| Lk Dorothy RD SE over Big Blowout Creek | Good | 89.9 ft | 125 | 2015 |
| M Fork RD Nf-5600 over Unnamed Tributary | Good | 80.1 ft | 125 | 2014 |
| Tinkham Road over S.fk. Snoqualmie | Good | 181.1 ft | 120 | 1972 |
| Road over Bolt Creek | Good | 41.3 ft | 114 | 1988 |
| Road over Harlan Creek | Good | 77.1 ft | 114 | 1991 |
| 150th Pl SE over Wetland | Good | 215.9 ft | 110 | 2002 |
| 240th AVE SE over 15 Mile Creek | Good | 65.9 ft | 110 | 2013 |
| Parking Lot Road over Sound Transit Light Rail | Good | 31.5 ft | 100 | 2023 |
| SE 4th Pl over Kelsey Creek | Good | 42.3 ft | 100 | 2008 |
| SE Lake Dorothy RD over Slide Depression | Good | 41.0 ft | 99 | 2011 |
| SE 39th Pl over Rutherford Slough | Good | 30.8 ft | 95 | 2007 |
| Hansen CR RD over I-90 | Good | 263.1 ft | 83 | 1971 |
| Road over Bolt Creek | Good | 41.0 ft | 75 | 1997 |
| Smithers AVE S over Wetland | Good | 21.0 ft | 75 | 2017 |
| North Fork RD SE over Sunday Creek | Good | 105.0 ft | 70 | 2010 |
| Road over Burns Creek | Good | 56.1 ft | 60 | 1999 |
| North Fork RD SE over N Fork Snoqualmie River | Good | 174.9 ft | 60 | 2008 |
| No Data Entered over Slippery Creek Trib. | Good | 70.2 ft | 50 | 2010 |
| Camp Loop over Mcsorley Creek | Good | 34.4 ft | 50 | 1992 |
| Camp Loop over Mcsorley Creek | Good | 32.2 ft | 50 | 1992 |
| Camp Loop over Mcsorley Creek | Good | 32.2 ft | 50 | 1992 |
| NE 31st Street over May Creek | Good | 62.0 ft | 50 | 2014 |
| 62nd Way NE over Wetland Stream | Good | 37.4 ft | 50 | 2010 |
| Road over Greenwater River | Good | 136.8 ft | 48 | 1979 |
| Road over Johnson Creek | Good | 60.0 ft | 46 | 1991 |
| SE Grouse Ridge RD over S Fk Snoqualmie River | Good | 138.1 ft | 45 | 1982 |
| Road over W Fk Miller River | Good | 102.0 ft | 44 | 1961 |
| Road over Boulder Creek | Good | 68.2 ft | 44 | 1999 |
| Road # 50 over East Creek | Good | 80.1 ft | 33 | 1995 |
| NE 31st Stree over May Creek | Good | 79.1 ft | 30 | 2018 |
| Road over Hansen Creek | Good | 61.0 ft | 25 | 1994 |
| SE 312th Way over SR 18 | Good | 227.0 ft | 24 | 1997 |
| Road over Tacoma Creek | Good | 45.9 ft | 17 | 1995 |
| Road over Green River | Good | 65.9 ft | 17 | 1995 |
| Road over Green River | Good | 120.1 ft | 14 | 1963 |
| Road over Twin Camps Creek | Good | 100.1 ft | 14 | 1966 |
| Road over Unnamed Creek | Good | 41.0 ft | 10 | 1995 |
| Road over Goblin Creek | Good | 140.1 ft | 10 | 1966 |
| Road over Tunnel Creek | Good | 56.8 ft | 8 | 1980 |
| Private Drive over Little Bear Creek | Good | 39.0 ft | 6 | 2006 |
| Road over Martin Creek | Good | 71.2 ft | 5 | 1981 |
| Road over Money Creek | Good | 90.6 ft | 5 | 2011 |
| Road over Money Creek | Good | 80.7 ft | 5 | 2011 |
| Harrison ST over SR 99 Tunnel Void Space | Good | 123.0 ft | 0 | 2018 |