| US 12 over Nine Mile CR & Rr | Poor | 212.9 ft | 8,140 | 1933 |
| US 12 over WB Off Ramp | Poor | 474.1 ft | 4,350 | 1971 |
| 4th ST over Mill Creek | Poor | 50.9 ft | 2,624 | 1908 |
| 6th ST over Mill Creek | Poor | 65.0 ft | 1,970 | 1920 |
| 5th ST over Mill Creek | Poor | 49.9 ft | 1,970 | 1916 |
| Wallula AVE over Mill Creek | Poor | 80.1 ft | 948 | 1947 |
| Stateline RD (2) over Pine Creek | Poor | 60.0 ft | 545 | 1964 |
| SR 125 over Touchet River | Poor | 117.1 ft | 416 | 1916 |
| Mill Creek RD over Mill Creek | Poor | 153.9 ft | 380 | 1981 |
| Five Mile RD over Mill Creek | Poor | 120.1 ft | 340 | 1953 |
| Lyons Ferry RD over Fields Gulch | Poor | 39.7 ft | 160 | 1973 |
| Pettyjohn RD over Touchet River | Poor | 115.2 ft | 100 | 1914 |
| Meinburg RD over Coppei Creek | Poor | 40.0 ft | 80 | 1971 |
| South Fork Coppei over South Fork Coppei CR | Poor | 20.7 ft | 60 | 1920 |
| Seven Mile RD over Mill Creek | Poor | 140.1 ft | 50 | 2020 |
| Smith Springs RD over Dry Hollow | Poor | 24.9 ft | 36 | 1926 |
| Smith Springs RD over Dry Hollow | Poor | 25.9 ft | 24 | 1926 |
| Thiel RD over Woodward Canyon | Poor | 23.0 ft | 9 | 1953 |
| SR 125 over Yellowhawk Creek | Fair | 89.9 ft | 17,209 | 1988 |
| Myra RD over Mill Creek | Fair | 125.0 ft | 13,345 | 2008 |
| 2nd AVE over Mill Creek | Fair | 47.9 ft | 10,563 | 1915 |
| Wilbur AVE over Mill Creek | Fair | 107.9 ft | 10,053 | 1955 |
| US 12 over Abandoned Rr Grade | Fair | 145.0 ft | 8,735 | 1953 |
| US 12 over Walla Walla River | Fair | 369.1 ft | 8,735 | 1953 |
| US 12 over Railroad | Fair | 214.9 ft | 8,735 | 1981 |
| US 12 over Walla Walla R | Fair | 226.0 ft | 8,169 | 1917 |
| US 12 over Vansycle Creek | Fair | 76.1 ft | 8,169 | 1977 |
| Old HWY 12 over Dry Run | Fair | 60.0 ft | 8,012 | 1919 |
| Old HWY 12 over Woodward Canyon | Fair | 60.0 ft | 8,012 | 1917 |
| Old HWY 12 over Touchet River | Fair | 155.8 ft | 7,642 | 1919 |
| US 12 over Borelske Stad Maint RD | Fair | 81.0 ft | 7,122 | 1971 |
| SR 124 over US 12 | Fair | 237.9 ft | 6,798 | 2012 |
| Tausick Way over Mill Creek | Fair | 107.0 ft | 6,539 | 1968 |
| Roosevelt ST over Mill Creek | Fair | 48.9 ft | 6,123 | 1910 |
| US 12 over Touchet River | Fair | 167.0 ft | 5,054 | 1931 |
| US 12 over Dry Creek | Fair | 54.1 ft | 4,564 | 1954 |
| Main ST over Mill Creek | Fair | 51.8 ft | 4,412 | 1902 |
| US 12 over Dry Creek | Fair | 97.1 ft | 4,314 | 1920 |
| Park ST over Mill Creek | Fair | 84.0 ft | 4,169 | 2007 |
| Clinton ST over Mill Creek | Fair | 50.9 ft | 3,390 | 1922 |
| Gose ST over Mill Creek | Fair | 117.5 ft | 2,867 | 1969 |
| 13th AVE over Mill Creek | Fair | 115.2 ft | 2,690 | 1980 |
| Plaza Way over Russell Creek | Fair | 34.1 ft | 2,595 | 1920 |
| US 12 over Airport RD | Fair | 164.0 ft | 2,430 | 1971 |
| US 12 over Myra RD | Fair | 109.9 ft | 2,382 | 2009 |
| Merriam ST over Mill Creek | Fair | 50.9 ft | 2,300 | 1924 |
| Otis ST over Mill Creek | Fair | 51.8 ft | 2,296 | 1923 |
| 3rd AVE over Garrison CR | Fair | 25.9 ft | 2,125 | 1926 |
| Old Milton HWY over Yellowhawk Creek | Fair | 48.9 ft | 1,795 | 1920 |
| SR 124 over Abandoned Railroad | Fair | 134.8 ft | 1,622 | 1966 |
| SR 124 over Winnett Canyon | Fair | 153.9 ft | 1,622 | 1966 |
| SR 124 over County RD | Fair | 169.9 ft | 1,511 | 1962 |
| Pleasant ST over Yellowhawk Creek | Fair | 33.1 ft | 750 | 1923 |
| Last Chance RD over Mill Creek | Fair | 80.1 ft | 681 | 1977 |
| Hussey ST over Mill Creek | Fair | 65.0 ft | 530 | 1976 |
| County Road 938 over Mill Creek | Fair | 92.8 ft | 500 | 1962 |
| SR 125 over Spring Branch | Fair | 22.0 ft | 442 | 1960 |
| SR 125 over Dry Creek | Fair | 42.0 ft | 429 | 1921 |
| SR 125 over Spring Valley Branch | Fair | 97.1 ft | 429 | 1955 |
| Hart RD over Touchet River | Fair | 140.1 ft | 190 | 1965 |
| Lower Hogeye RD over Whiskey Creek | Fair | 40.0 ft | 170 | 1916 |
| Byrnes RD over Up Rr | Fair | 24.6 ft | 113 | 1920 |
| Smith Springs RD over Colville Gulch | Fair | 21.0 ft | 100 | 1922 |
| Smith Springs RD over Whetstone Creek | Fair | 49.9 ft | 98 | 1973 |
| Touchet North RD over Touchet River | Fair | 196.9 ft | 95 | 1983 |
| Spillway Bridge over Spillway Channel | Fair | 511.8 ft | 50 | 1966 |
| Nav Lock Bridge over Nav Lock Channel | Fair | 93.2 ft | 50 | 1966 |
| Biscuit Ridge RD over Dry Creek | Fair | 25.9 ft | 45 | 1977 |
| Biscuit Ridge RD over Dry Creek | Fair | 27.9 ft | 45 | 1977 |
| Biscuit Ridge RD over Dry Creek | Fair | 25.9 ft | 45 | 1977 |
| Mcfeely RD over Winnett Canyon | Fair | 24.0 ft | 37 | 1951 |
| Smith Springs RD over Dry Hollow | Fair | 23.0 ft | 36 | 1932 |
| Byrnes RD over Nine Mile Canyon | Fair | 44.9 ft | 30 | 1916 |
| Pickard RD over Dry Hollow | Fair | 24.6 ft | 7 | 1964 |
| SR 125 over Walla Walla River | Good | 148.0 ft | 17,209 | 1988 |
| Rose Street over Mill Creek | Good | 96.1 ft | 10,500 | 2021 |
| S Palouse ST over Mill Creek | Good | 64.0 ft | 7,980 | 2009 |
| US 12 over Mcnary Pool | Good | 87.9 ft | 7,405 | 2004 |
| US 12 over 2nd AVE & Bn Rr | Good | 423.9 ft | 6,661 | 1971 |
| US 12 over Up Rr | Good | 258.9 ft | 6,661 | 1972 |
| US 12 over 9th AVE | Good | 211.0 ft | 6,661 | 1972 |
| SR 125 over Mill CR | Good | 59.1 ft | 6,477 | 1936 |
| US 12 over Wellington AVE | Good | 164.0 ft | 6,209 | 1971 |
| US 12 over SR 125 | Good | 224.1 ft | 6,200 | 1972 |
| US 12 over Bn & Up Rr | Good | 544.0 ft | 6,038 | 1975 |
| US 12 over Rr & Private Road | Good | 553.1 ft | 6,038 | 2007 |
| Colville ST over Mill Creek | Good | 49.9 ft | 5,139 | 1920 |
| US 12 over Dry Creek | Good | 84.0 ft | 4,564 | 2003 |
| Division ST over Mill Creek | Good | 51.8 ft | 4,170 | 2007 |
| US 12 over Frenchtown Access RD | Good | 57.1 ft | 4,072 | 2023 |
| US 12 over Frenchtown Access RD | Good | 57.1 ft | 4,072 | 2023 |
| US 12 over Nine Mile Hill Road | Good | 53.1 ft | 4,070 | 2023 |
| US 12 over Nine Mile Hill Road | Good | 56.4 ft | 4,070 | 2023 |
| US 12 over Touchet River | Good | 538.4 ft | 3,740 | 2023 |
| US 12 over Touchet North RD | Good | 62.7 ft | 3,740 | 2022 |
| US 12 over Dry Creek | Good | 117.5 ft | 3,740 | 2023 |
| US 12 over Dry Creek | Good | 117.5 ft | 3,740 | 2023 |
| Reser RD over Yellowhawk Creek | Good | 27.9 ft | 3,610 | 2011 |
| US 12 over Coppei Creek | Good | 68.9 ft | 3,567 | 2005 |
| US 730 over Spring Gulch | Good | 33.8 ft | 3,369 | 1950 |
| SR 124 over Uprr | Good | 149.9 ft | 3,327 | 2017 |
| Plaza Way over Cottonwood Creek | Good | 78.1 ft | 3,145 | 1982 |
| Old Milton HWY over Yellowhawk Creek | Good | 80.1 ft | 2,750 | 1990 |
| US 12 over Myra RD | Good | 109.6 ft | 2,382 | 2009 |
| Humorist Road over US 12 | Good | 270.0 ft | 2,029 | 2012 |
| Old Milton HWY over Walla Walla River | Good | 139.4 ft | 1,795 | 1975 |
| SR 124 over Whetstone CR | Good | 76.1 ft | 1,621 | 1995 |
| SR 124 over Coppei Creek | Good | 89.9 ft | 1,518 | 1994 |
| SR 124 over Touchet River | Good | 136.2 ft | 1,510 | 1984 |
| Old HWY 12 over Dry Creek | Good | 65.0 ft | 1,480 | 1961 |
| Spokane Street over Mill Creek | Good | 63.0 ft | 1,300 | 2020 |
| Peppers Bridge RD over Walla Walla River | Good | 134.8 ft | 1,260 | 1994 |
| School Avenue over Russell Creek | Good | 27.2 ft | 1,220 | 1995 |
| Mojonnier RD over Walla Walla River | Good | 194.9 ft | 1,115 | 2001 |
| Touchet Gardena RD over Walla Walla River | Good | 188.0 ft | 990 | 2012 |
| Kendall RD over Russell Creek | Good | 24.0 ft | 887 | 1988 |
| Last Chance RD over Walla Walla River | Good | 193.6 ft | 850 | 1997 |
| Mill Creek RD over Blue Creek | Good | 130.9 ft | 843 | 2019 |
| Mcdonald RD over Walla Walla River | Good | 200.8 ft | 770 | 1989 |
| Lower Waitsburg RD over Dry Creek | Good | 85.0 ft | 720 | 1980 |
| Locher over Burlingame Ditch | Good | 21.3 ft | 720 | 2002 |
| Detour RD over Walla Walla River | Good | 200.1 ft | 664 | 2002 |
| Powerline RD over Cottonwood Creek | Good | 56.8 ft | 568 | 1989 |
| Frog Hollow over Burlingame Ditch | Good | 22.3 ft | 560 | 2002 |
| Lower Dry Creek RD over Mud Creek | Good | 25.9 ft | 508 | 1991 |
| Harvey Shaw RD over Dry Creek | Good | 141.1 ft | 504 | 1966 |
| Peppers Bridge RD over Yellowhawk Creek | Good | 82.3 ft | 496 | 1989 |
| S Wilbur Avenue over Russell Creek | Good | 24.0 ft | 462 | 1989 |
| SR 125 over Spring Valley Branch | Good | 29.9 ft | 429 | 1921 |
| SR 125 over Spring Valley Branch | Good | 152.9 ft | 429 | 1955 |
| Harvey Shaw RD over Touchet River | Good | 149.9 ft | 401 | 2005 |
| Middle Waitsburg over Dry Creek | Good | 84.6 ft | 400 | 2002 |
| Mill Creek RD over Mill Creek | Good | 170.9 ft | 380 | 2019 |
| Lowden Gardena RD over Walla Walla River | Good | 226.0 ft | 375 | 2010 |
| Mcdonald RD over Burlingame Ditch | Good | 21.7 ft | 370 | 2009 |
| Lyons Ferry RD over Dry Hollow | Good | 44.9 ft | 335 | 1988 |
| Third ST (d) over Dry Creek | Good | 62.7 ft | 304 | 1995 |
| Pettybone ST N over Dry Creek | Good | 65.9 ft | 300 | 2014 |
| Main ST over Touchet River | Good | 128.9 ft | 275 | 2017 |
| Foster RD over Russell Creek | Good | 30.8 ft | 270 | 1998 |
| Lyons Ferry RD over Winnett Canyon | Good | 29.9 ft | 254 | 1988 |
| Lower Waitsburg RD over Spring Valley Creek | Good | 47.9 ft | 242 | 1985 |
| Touchet North RD over Touchet River | Good | 145.7 ft | 215 | 2007 |
| Sapolil RD over Dry Creek | Good | 120.1 ft | 210 | 2006 |
| Hart RD over Spring Valley | Good | 36.1 ft | 210 | 2014 |
| Sudbury RD over Dry Creek | Good | 140.1 ft | 206 | 1973 |
| Sand Pit RD over Pine Creek | Good | 75.1 ft | 180 | 1992 |
| Touchet North RD over Touchet River | Good | 142.4 ft | 172 | 1992 |
| Rainville RD over Burglingame Ditch | Good | 22.0 ft | 168 | 2005 |
| 7th Street over Coppei Creek | Good | 35.1 ft | 160 | 1970 |
| Hood RD over Cottonwood Creek | Good | 61.0 ft | 150 | 2008 |
| Valley Grove RD over Dry Creek | Good | 121.4 ft | 146 | 2003 |
| Cummins RD over Touchet River | Good | 142.4 ft | 142 | 1995 |
| Woodward Canyon RD over Woodward Canyon | Good | 33.1 ft | 130 | 1994 |
| Gardena RD over Pine Creek | Good | 81.4 ft | 113 | 2003 |
| Woodward Canyon RD over Woodward Canyon | Good | 46.3 ft | 102 | 2012 |
| Cummins Road over US 12 | Good | 141.1 ft | 100 | 2023 |
| Woodward Canyon RD over US 12 | Good | 146.7 ft | 100 | 2023 |
| Lower Dry Creek RD over US 12 | Good | 146.7 ft | 100 | 2023 |
| Smith Springs RD over Colville Gulch | Good | 39.4 ft | 100 | 2004 |
| Sudbury RD over Dry Run | Good | 24.0 ft | 100 | 2023 |
| Guy Fine RD over Dry Creek | Good | 155.8 ft | 98 | 1992 |
| Barney RD over Mud Creek | Good | 23.3 ft | 90 | 2017 |
| Lamar RD over Winnett Canyon | Good | 87.9 ft | 86 | 2022 |
| Mccown RD over Coppei Creek | Good | 85.0 ft | 85 | 2009 |
| Luckenbill RD over Touchet River | Good | 141.4 ft | 84 | 1998 |
| Luckenbill RD over Dry Run | Good | 22.3 ft | 83 | 2012 |
| Mud Creek RD over Mud Creek | Good | 23.3 ft | 82 | 2020 |
| Brown RD over Touchet River | Good | 158.1 ft | 80 | 2000 |
| Garden Street over Drainage Ditch | Good | 24.6 ft | 79 | 1988 |
| South Fork Coppei over North Fork Coppei Creek | Good | 24.3 ft | 71 | 1997 |
| Scott RD over South Fork Dry Creek | Good | 38.1 ft | 65 | 2010 |
| South Fork Coppei over South Fork Coppei Creek | Good | 28.2 ft | 61 | 1997 |
| Ferris RD over Spring Valley | Good | 25.6 ft | 60 | 1993 |
| Spring Valley RD over Spring Valley | Good | 54.1 ft | 57 | 1995 |
| Swegle RD over Walla Walla River | Good | 199.5 ft | 54 | 1995 |
| Spring Valley RD over Dry Run | Good | 25.3 ft | 50 | 2008 |
| Brown RD over Dry Run | Good | 22.3 ft | 47 | 2012 |
| Biscuit Ridge RD over Dry Creek | Good | 60.0 ft | 45 | 2018 |
| Greenville RD over Winnett Canyon | Good | 69.9 ft | 40 | 1986 |
| Skyrocket RD over Whetstone Creek | Good | 65.0 ft | 40 | 1992 |
| Buckley RD over Dry Creek | Good | 119.1 ft | 37 | 1992 |
| Sims RD over Touchet River | Good | 147.3 ft | 32 | 1990 |
| Wooden RD over Walker Canyon | Good | 25.9 ft | 32 | 2001 |
| Byerley RD over Walla Walla River | Good | 158.8 ft | 30 | 1997 |
| Van Ausdle Lane over Dry Creek | Good | 125.0 ft | 28 | 1999 |
| Klicker Mtn RD over Blue Creek | Good | 80.1 ft | 25 | 1976 |
| Mckay Grade RD over Russell Creek | Good | 27.6 ft | 25 | 1996 |
| North Fork Coppei over North Fork Coppei Creek | Good | 27.2 ft | 22 | 1997 |
| North Fork Coppei over North Fork Coppei Creek | Good | 25.9 ft | 22 | 1997 |
| North Fork Coppei over North Fork Coppei Creek | Good | 27.9 ft | 22 | 1997 |
| Talbott RD over Dry Creek | Good | 143.7 ft | 17 | 1997 |
| Smith RD over Dry Creek | Good | 55.1 ft | 14 | 2006 |
| Spring Valley RD over Dry Run | Good | 22.6 ft | 12 | 1998 |
| Nelms RD over Woodward Canyon | Good | 32.5 ft | 7 | 1994 |