| I-90 over Bnsf Railroad | Poor | 309.1 ft | 10,667 | 1968 |
| I-90 over Bnsf Railroad | Poor | 319.6 ft | 10,667 | 1968 |
| I-90 over SR 261 | Poor | 169.0 ft | 8,405 | 1958 |
| I-90 over Damon RD | Poor | 127.0 ft | 6,018 | 1972 |
| I-90 over Wahl RD | Poor | 127.0 ft | 6,000 | 1972 |
| I-90 over N Paha Packard RD | Poor | 105.0 ft | 5,950 | 1972 |
| I-90 over SR 21 | Poor | 200.1 ft | 5,897 | 1972 |
| I-90 over SR 21 | Poor | 170.9 ft | 5,897 | 1972 |
| SR 24 over Potholes East Canal | Poor | 129.9 ft | 5,698 | 1976 |
| SR 24 over Sagehill Wasteway | Poor | 45.6 ft | 4,970 | 1965 |
| SR 26 over Np Ry | Poor | 210.6 ft | 2,260 | 1959 |
| SR 26 over East Low Canal | Poor | 102.0 ft | 2,260 | 1959 |
| SR 26 over Providence Coulee | Poor | 257.9 ft | 1,997 | 1959 |
| SR 26 over Up Rr | Poor | 137.1 ft | 1,646 | 1975 |
| SR 26 over Cow Creek | Poor | 333.0 ft | 1,646 | 1975 |
| SR 26 over Abandoned Rr | Poor | 196.9 ft | 1,646 | 1977 |
| US 395 Ramp over I-90 | Poor | 308.1 ft | 1,360 | 1958 |
| SR 26 over Dry Wash | Poor | 113.8 ft | 1,293 | 1960 |
| SR 21 over Bauer Coulee | Poor | 134.8 ft | 301 | 1946 |
| Lemaster RD over Wasteway El81 128+36.98 | Poor | 50.9 ft | 135 | 1952 |
| Steele RD over Branch Canal El68 134+51 | Poor | 47.6 ft | 107 | 1952 |
| Griffith RD over Rocky Coulee | Poor | 27.9 ft | 20 | 1929 |
| Sackman RD over East Low Canal | Poor | 84.6 ft | 6 | 1953 |
| I-90 over Hills North RD | Fair | 140.1 ft | 10,614 | 1958 |
| I-90 over Hills North RD | Fair | 140.1 ft | 10,614 | 1958 |
| I-90 over SR 261 | Fair | 169.0 ft | 8,405 | 1952 |
| SR 26 over Potholes East Canal | Fair | 160.4 ft | 7,360 | 1955 |
| SR 26 over Cmstpp Rr | Fair | 229.0 ft | 7,360 | 1956 |
| SR 26 over SR 24 | Fair | 106.0 ft | 7,360 | 1956 |
| SR 17 over SR 26 | Fair | 143.0 ft | 7,264 | 2001 |
| I-90 over Damon RD | Fair | 127.0 ft | 6,018 | 1972 |
| I-90 over Deal RD | Fair | 112.9 ft | 5,952 | 1972 |
| I-90 over N Paha Packard RD | Fair | 105.0 ft | 5,950 | 1972 |
| I-90 over US 395 SB | Fair | 139.1 ft | 5,868 | 1996 |
| I-90 over US 395 SB | Fair | 139.1 ft | 5,868 | 1995 |
| US 395 over Paha-packard RD | Fair | 106.0 ft | 4,804 | 1995 |
| US 395 SB over N-n Ramp | Fair | 256.9 ft | 4,176 | 1996 |
| SR 26 over Lower Crab Creek | Fair | 127.0 ft | 3,754 | 1955 |
| Bench RD over Potholes East Canal | Fair | 128.0 ft | 3,255 | 1978 |
| Lee RD over Lateral El68 328+26.61 | Fair | 38.7 ft | 2,069 | 1988 |
| SR 26 over Np Ry | Fair | 154.9 ft | 1,997 | 1959 |
| Booker RD over East Low Canal | Fair | 86.0 ft | 1,682 | 1971 |
| SR 26 over Palouse River | Fair | 250.0 ft | 1,646 | 1971 |
| Division Street over Paha Drainage Ditch | Fair | 44.0 ft | 846 | 1930 |
| Lee RD over Wasteway El68 Sta 264+67 | Fair | 28.9 ft | 765 | 1986 |
| Cunningham RD over East Low Canal 4202+20 | Fair | 85.0 ft | 478 | 1971 |
| SR 261 over Dry Run | Fair | 27.9 ft | 472 | 1947 |
| E Danekas RD over I-90 | Fair | 226.0 ft | 422 | 1958 |
| Rosenoff RD over Intermittent Stream | Fair | 50.2 ft | 407 | 1920 |
| Booth Ave. over Sand Ditch | Fair | 42.3 ft | 355 | 1910 |
| Cunningham RD over Providence Coulee | Fair | 32.5 ft | 279 | 1920 |
| Wellsandt RD over I-90 | Fair | 340.9 ft | 272 | 1958 |
| Herman RD over East Low Canal | Fair | 76.1 ft | 272 | 1953 |
| Lucy RD over East Low Canal 4372+31.0 | Fair | 78.1 ft | 223 | 1953 |
| Foley RD over Lateral El68 328+26.61 | Fair | 46.3 ft | 216 | 1988 |
| Rosenoff RD over Farrier Coulee | Fair | 55.4 ft | 207 | 1920 |
| Reynolds RD over El68 Wasteway Canal | Fair | 24.0 ft | 200 | 1952 |
| Billington RD over El81 Wasteway 67+12.23 | Fair | 46.9 ft | 196 | 1952 |
| Foley RD over East Low Canal | Fair | 79.4 ft | 195 | 1953 |
| Schoessler RD over I-90 | Fair | 340.9 ft | 169 | 1958 |
| Hatton RD over El68 Wasteway 608+83.97 | Fair | 51.8 ft | 166 | 1952 |
| SR 21 over Intermittent Stream | Fair | 42.0 ft | 165 | 1981 |
| Lind-hatton RD over Intermittent Stream | Fair | 109.6 ft | 164 | 1957 |
| Lind-hatton RD over Providence Coulee | Fair | 37.1 ft | 156 | 1939 |
| Schrag RD over Dry Wash | Fair | 98.1 ft | 143 | 1938 |
| Herman RD over Branch Canal El68 | Fair | 44.6 ft | 140 | 1952 |
| Lind-warden RD over Lind Coulee | Fair | 105.0 ft | 130 | 1954 |
| Hatton RD over Wasteway Pe 16.4 Ww | Fair | 22.0 ft | 127 | 1952 |
| Paha-packard Rd. over Dry Wash | Fair | 30.2 ft | 112 | 1915 |
| Moody RD over Rocky Coulee | Fair | 27.9 ft | 112 | 1967 |
| Hatton RD over East Low Canal | Fair | 119.8 ft | 100 | 1953 |
| Bauman Rd. over Intermittent Stream | Fair | 23.0 ft | 80 | 1900 |
| Cunningham RD over Intermittent Stream | Fair | 35.1 ft | 78 | 1958 |
| Sutton Road over Branch Canal El68 275+19 | Fair | 43.6 ft | 71 | 1952 |
| Lind-ralston RD over Intermittent Stream | Fair | 44.9 ft | 64 | 1993 |
| Ralston-benge RD over Dry Wash | Fair | 24.9 ft | 62 | 1900 |
| Ralston-benge RD over Cow Creek | Fair | 55.1 ft | 62 | 1917 |
| Schrag RD over Farrier Coulee | Fair | 98.1 ft | 57 | 1938 |
| Urquhart RD over Weber Coulee | Fair | 66.3 ft | 57 | 1917 |
| Lind-ralston RD over Intermittent Stream | Fair | 22.0 ft | 55 | 1916 |
| Old SR 26 RD over Palouse River | Fair | 336.9 ft | 53 | 1941 |
| Schrag RD over Bauer Coulee | Fair | 74.1 ft | 53 | 1938 |
| Paha-packard RD over Dry Wash | Fair | 30.2 ft | 52 | 1915 |
| Batum RD over Rocky Coulee | Fair | 45.3 ft | 50 | 1914 |
| Benge-washtucna RD over Cow Creek | Fair | 104.3 ft | 50 | 1914 |
| Benge-washtucna RD over Dry Relief | Fair | 30.2 ft | 50 | 1914 |
| Cunningham RD over Dry Wash | Fair | 33.1 ft | 46 | 1914 |
| Schrag Road over Weber Coulee | Fair | 74.1 ft | 41 | 1938 |
| Lauer RD over Dry Relief | Fair | 25.9 ft | 38 | 1933 |
| Wahl RD over Bauer Coulee | Fair | 51.8 ft | 37 | 1940 |
| Schoonover RD over Milwaukee Coulee | Fair | 40.4 ft | 33 | 1956 |
| Neilson RD over Intermittent Stream | Fair | 22.6 ft | 28 | 1925 |
| Sackman RD over Dry Wash | Fair | 30.8 ft | 27 | 1939 |
| Calloway RD over Dry Wash | Fair | 25.6 ft | 26 | 1900 |
| Thiel RD over Dry Wash | Fair | 33.1 ft | 26 | 1916 |
| Hatton RD over Dry Relief | Fair | 27.9 ft | 25 | 1915 |
| Dewald RD over Intermittent Stream | Fair | 26.2 ft | 23 | 1957 |
| Hatton RD over Dry Relief | Fair | 37.1 ft | 21 | 1927 |
| Farm Access over East Low 68 Mile Lateral | Fair | 54.1 ft | 20 | 1953 |
| Jantz RD over Rocky Coulee | Fair | 29.9 ft | 19 | 1950 |
| Arlt RD over Intermittent Stream | Fair | 28.9 ft | 17 | 1900 |
| Schoessler RD over Dry Wash | Fair | 24.9 ft | 15 | 1961 |
| Wellsandt RD over I-90 | Fair | 305.1 ft | 14 | 1967 |
| Lauer RD over Rocky Coulee | Fair | 34.4 ft | 14 | 1914 |
| Bauer RD over Dry Wash | Fair | 25.9 ft | 14 | 1938 |
| Roloff RD over Dry Wash | Fair | 24.0 ft | 13 | 1953 |
| Suko RD over Dry Wash | Fair | 25.9 ft | 12 | 1949 |
| Providence RD over Dry Relief | Fair | 23.0 ft | 10 | 1900 |
| Gearhardt RD over Lateral El85 Sta 2+30.30 | Fair | 59.1 ft | 10 | 1952 |
| Calloway RD over Dry Wash | Fair | 22.0 ft | 10 | 1962 |
| Klein RD over Dry Wash | Fair | 22.0 ft | 9 | 1900 |
| Schoessler RD over Dry Wash | Fair | 23.0 ft | 8 | 1900 |
| Hampton RD over Dry Relief | Fair | 60.4 ft | 8 | 1952 |
| Farm Access over East Low 68 Mile Lateral | Fair | 50.9 ft | 5 | 1953 |
| Jantz RD over Intermittent Stream | Fair | 29.9 ft | 4 | 1953 |
| Benzel RD over Dry Wash | Fair | 22.0 ft | 3 | 1952 |
| Hatton RD over Hatton Coulee | Fair | 51.2 ft | 3 | 1915 |
| Wahl RD over Dry Relief | Fair | 28.2 ft | 2 | 1950 |
| Hampton RD over Dry Relief | Fair | 25.9 ft | 1 | 1900 |
| Anderson RD over Dry Wash | Fair | 38.1 ft | 1 | 1915 |
| Anderson RD over Intermittent Stream | Fair | 23.3 ft | 1 | 1961 |
| Paxton Trail over Rock Creek | Fair | 74.1 ft | 0 | 1914 |
| I-90 over Paha Coulee | Good | 22.0 ft | 6,150 | 1959 |
| I-90 over Moody RD | Good | 106.0 ft | 6,042 | 1972 |
| I-90 over Moody RD | Good | 125.0 ft | 6,042 | 1972 |
| I-90 over Batum RD | Good | 100.1 ft | 6,018 | 1972 |
| I-90 over Batum RD | Good | 107.0 ft | 6,018 | 1972 |
| I-90 over Wahl RD | Good | 127.0 ft | 6,000 | 1972 |
| I-90 over Farrier Coulee | Good | 173.9 ft | 5,952 | 1972 |
| I-90 over Farrier Coulee | Good | 154.9 ft | 5,952 | 1972 |
| I-90 over Deal RD | Good | 115.2 ft | 5,952 | 1972 |
| US 395 over Paha-packard RD | Good | 126.0 ft | 4,804 | 1995 |
| US 395 (sb Only) over Lind Coulee | Good | 121.1 ft | 4,494 | 1956 |
| US 395 NB over N-n Ramp | Good | 256.9 ft | 4,176 | 1996 |
| Cunningham RD over Potholes East Canal | Good | 146.0 ft | 3,513 | 1995 |
| SR 26 over US 395 | Good | 257.9 ft | 2,465 | 1995 |
| SR 24 over Irrigation Canal | Good | 65.6 ft | 2,223 | 1967 |
| Booker RD over Wasteway | Good | 46.9 ft | 1,481 | 1985 |
| SR 26 over Nedwickes Arroyo | Good | 22.0 ft | 1,356 | 1960 |
| Mcmanamon Rd. over Potholes East Canal | Good | 161.4 ft | 1,238 | 2019 |
| Mcmanamon RD over Lower Crab Creek | Good | 99.1 ft | 1,024 | 2001 |
| SR 21 over Bnrr | Good | 203.1 ft | 1,021 | 1995 |
| N Bob Lee RD over I-90 | Good | 410.1 ft | 920 | 1968 |
| SR 21 over Lind Coulee | Good | 57.1 ft | 736 | 1986 |
| SR 261 over Dry Run | Good | 27.9 ft | 488 | 1947 |
| SR 261 over Dry Run | Good | 25.9 ft | 472 | 1947 |
| SR 261 over Dry Run | Good | 26.9 ft | 456 | 1947 |
| Van Marter ST over Lind Coulee | Good | 120.1 ft | 392 | 2007 |
| E-ns Ramp I-90 over Burlington-northern Rr | Good | 180.1 ft | 333 | 1985 |
| SR 21 over US 395 | Good | 246.1 ft | 304 | 1995 |
| Bench RD over Wasteway El68 Sta 430+75 | Good | 49.9 ft | 270 | 1988 |
| Athey RD over Potholes East Canal | Good | 127.0 ft | 260 | 1998 |
| Rosenoff RD over Bauer Coulee | Good | 50.9 ft | 243 | 1995 |
| Cemetery RD over Usbr Latural El68 | Good | 48.9 ft | 235 | 2008 |
| Providence RD over Ecbid Wasteway | Good | 25.9 ft | 213 | 1995 |
| Leisle Road over East Low Canal | Good | 128.0 ft | 206 | 2015 |
| SR 21 over Dry Run | Good | 92.8 ft | 182 | 1965 |
| Deal RD over Farrier Coulee | Good | 60.0 ft | 133 | 1989 |
| Lind-ralston RD over Intermittent Stream | Good | 44.9 ft | 116 | 1993 |
| Lind-ralston RD over Dry Relief | Good | 22.0 ft | 113 | 1967 |
| 3rd Street over Runoff Channel | Good | 53.1 ft | 111 | 1980 |
| Deal RD over Weber Coulee | Good | 44.9 ft | 107 | 1989 |
| Lind-ralston RD over Lind Coulee | Good | 37.7 ft | 103 | 1993 |
| Neilson ST over Lind Coulee | Good | 120.1 ft | 100 | 2003 |
| Old SR 26 RD over Palouse River Overrun | Good | 28.5 ft | 96 | 1944 |
| Hills RD over Cow Creek | Good | 50.2 ft | 96 | 2009 |
| Hills RD over Intermittent Stream | Good | 32.2 ft | 96 | 2009 |
| Chelan Street over Paha Drainage Ditch | Good | 42.0 ft | 95 | 1987 |
| Wellsandt Rd. over Dry Releif | Good | 46.9 ft | 93 | 2004 |
| Batum RD over York Coulee | Good | 59.1 ft | 91 | 1979 |
| Deal RD over Dry Wash | Good | 55.1 ft | 81 | 2004 |
| Paha-packard RD over Paha Coulee | Good | 59.4 ft | 72 | 2000 |
| Heineman RD over Dry Wash | Good | 25.3 ft | 71 | 1995 |
| Ralston-benge RD over Dry Wash | Good | 29.9 ft | 62 | 1956 |
| Benge-winona RD over Columbia Plateau Trail | Good | 121.1 ft | 59 | 2000 |
| Damon RD over Intermittent Stream | Good | 25.9 ft | 48 | 1959 |
| Calloway RD over East Low Canal | Good | 152.6 ft | 41 | 2006 |
| Gray RD over Cow Creek | Good | 65.0 ft | 33 | 1995 |
| Heinemann RD over Farrier Coulee | Good | 24.9 ft | 25 | 1900 |
| Smart RD over Lind Coulee | Good | 39.0 ft | 21 | 1995 |
| Urquhart RD over US 395 | Good | 257.9 ft | 18 | 1995 |
| Bauer RD over Dry Wash | Good | 40.0 ft | 15 | 2000 |
| Providence RD over East Low Canal | Good | 89.9 ft | 10 | 2004 |
| Yeisley RD over Branch Canal - El 85 | Good | 60.0 ft | 9 | 2005 |
| Dyck RD over Rocky Coulee | Good | 33.1 ft | 7 | 2002 |
| Koch RD over Farrier Coulee | Good | 111.9 ft | 4 | 1973 |
| Maintenance Road over Scooteney Wasteway | Good | 26.2 ft | 2 | 1953 |