| I-205 over SR 14 Bnrr | Clark | 160,000 | Fair | 1982 |
| I-90 EB over Sunset Creek | King | 139,482 | Good | 2024 |
| I-90 WB over Sunset Creek | King | 139,482 | Good | 2024 |
| N Queen Anne DR over Ravine | King | 125,000 | Fair | 1935 |
| I-5 over Terrain | King | 122,487 | Fair | 1966 |
| SW Spokane ST over Duwamish River W Waterwy | King | 108,179 | Fair | 1983 |
| I-5 over Terrain | King | 106,282 | Fair | 1966 |
| I-5 over Klickitat DR | King | 106,282 | Fair | 1965 |
| I-5 over I-405 NB / SR 518 EB | King | 106,282 | Good | 1966 |
| I-5 over I-405 NB / SR 518 EB | King | 106,282 | Fair | 1966 |
| I-5 over E-n Ramp | King | 106,282 | Good | 1965 |
| I-5 over Southcenter BLVD | King | 106,282 | Good | 1965 |
| I-5 over Southcenter BLVD | King | 106,282 | Good | 1965 |
| I-5 over Portland AVE | Pierce | 105,864 | Fair | 1962 |
| I-5 over Portland AVE | Pierce | 105,864 | Fair | 1962 |
| I-5 over Galer-lakeview V | King | 104,978 | Fair | 1961 |
| I-5 over S 259th Pl | King | 104,261 | Good | 1960 |
| I-5 over S 259th Pl | King | 104,261 | Fair | 1960 |
| I-5 over SR 516 | King | 104,261 | Fair | 1962 |
| I-5 over SR 516 | King | 104,261 | Fair | 1962 |
| I-5 over Norfolk ST Sewer | King | 103,312 | Fair | 1966 |
| I-5 over Norfolk ST Sewer | King | 103,312 | Good | 1966 |
| I-5 over Military RD Rose ST | King | 103,312 | Good | 1966 |
| I-5 over Military RD Rose ST | King | 103,312 | Fair | 1966 |
| I-5 Southbound over Terrain | King | 103,312 | Fair | 1967 |
| I-5 over Orillia Rd/s 188th ST | King | 100,213 | Fair | 1963 |
| I-5 over Orillia Rd/s 188th ST | King | 100,213 | Good | 1963 |
| SW Spokane ST over Delridge Way SW | King | 98,700 | Fair | 1983 |
| I-5 over 212th ST SW | Snohomish | 98,485 | Fair | 1963 |
| I-5 over 212th ST SW | Snohomish | 98,485 | Fair | 1963 |
| I-5 over 52nd AVE W | Snohomish | 98,485 | Good | 1963 |
| I-5 over 52nd AVE W | Snohomish | 98,485 | Fair | 1963 |
| I-5 over Military RD | King | 98,173 | Fair | 1959 |
| I-5 over Military RD | King | 98,173 | Good | 1959 |
| I-5 over Military RD | King | 98,173 | Fair | 1960 |
| I-5 over Military RD | King | 98,173 | Fair | 1960 |
| I-5 over S 288th ST | King | 98,173 | Good | 1961 |
| I-5 over S 288th ST | King | 98,173 | Fair | 1961 |
| I-405 over Bn Rr (abandoned) | King | 97,875 | Fair | 1972 |
| I-5 over Wapato Creek | Pierce | 97,641 | Good | 1960 |
| I-5 over Wapato Creek | Pierce | 97,641 | Good | 1960 |
| I-5 over N-w Ramp | King | 96,847 | Fair | 1966 |
| I-5 over Lucile ST | King | 96,847 | Poor | 1966 |
| I-5 over Lucile ST | King | 96,847 | Fair | 1966 |
| I-5 over Terrain | King | 96,847 | Fair | 1966 |
| I-5 over Terrain | King | 96,609 | Fair | 1966 |
| I-5 over Terrain | King | 96,609 | Fair | 1967 |
| I-5 over Terrain | King | 96,609 | Fair | 1966 |
| I-5 SB over Terrain | King | 96,609 | Fair | 1967 |
| I-5 NB over Terrain | King | 96,609 | Fair | 1966 |
| I-5 over Hylebos Creek | Pierce | 96,536 | Good | 1960 |
| I-5 over Hylebos Creek | Pierce | 96,536 | Good | 1960 |
| I-5 over Hylebos Creek | Pierce | 96,536 | Good | 1960 |
| I-5 over Hylebos Creek | Pierce | 96,536 | Good | 1960 |
| I-5 Northbound over Hylebos Creek | Pierce | 96,536 | Good | 2023 |
| I-5 Southbound over Hylebos Creek | Pierce | 96,536 | Good | 2023 |
| I-5 over Duwamish R Rr City ST | King | 95,981 | Fair | 1964 |
| I-5 over Duwamish R Rr City ST | King | 95,981 | Fair | 1964 |
| I-5 over Lowell Road | Snohomish | 94,939 | Good | 1950 |
| I-5 over Lowell Road | Snohomish | 94,939 | Good | 1967 |
| I-5 SB over NB & SB Hov Ramps | Snohomish | 94,939 | Good | 2007 |
| SW Spokane ST over Delridge Way SW | King | 93,180 | Fair | 1983 |
| I-5 over NE 155th ST | King | 92,642 | Fair | 1964 |
| I-5 over NE 155th ST | King | 92,642 | Fair | 1964 |
| I-5 over Denny Way-lakeview V | King | 92,513 | Fair | 1962 |
| I-5 over S 336th ST | King | 92,438 | Fair | 1959 |
| I-5 over S 336th ST | King | 92,438 | Fair | 1959 |
| I-5 over S 272nd ST | King | 92,376 | Good | 1961 |
| I-5 over S 272nd ST | King | 92,376 | Good | 1961 |
| I-5 over Metro Access | King | 92,302 | Good | 1990 |
| I-405 over SR 167 | King | 91,705 | Fair | 1964 |
| I-5 over Terrain | King | 91,632 | Fair | 1963 |
| I-5 over Lake Wash Ship Canal | King | 90,986 | Fair | 1962 |
| I-5 over SR 167 NB | Pierce | 90,829 | Fair | 1962 |
| I-5 over Puyallup R/rr/sr 167 | Pierce | 90,829 | Good | 2017 |
| I-5 over Puyallup River/rr/sr 167 | Pierce | 90,829 | Good | 2021 |
| I-5 over Ravenna BLVD | King | 90,390 | Fair | 1961 |
| I-5 over Ravenna BLVD | King | 90,390 | Fair | 1961 |
| I-5 NB over Railroad | Snohomish | 90,360 | Fair | 1967 |
| I-5 SB over Railroad | Snohomish | 90,360 | Fair | 1967 |
| I-5 over Smith AVE | Snohomish | 90,360 | Fair | 1967 |
| I-5 over Smith AVE | Snohomish | 90,360 | Good | 1967 |
| I-405 over SE 8th ST | King | 89,237 | Fair | 1971 |
| I-405 over SE 8th ST Oc | King | 89,237 | Fair | 1972 |
| I-5 over NE Northgate Way | King | 89,154 | Fair | 1964 |
| I-5 over NE Northgate Way | King | 89,154 | Good | 1964 |
| I-5 over S96th ST | Pierce | 88,784 | Fair | 1958 |
| I-5 over S 96th ST | Pierce | 88,784 | Good | 1958 |
| I-5 over Interurban AVE | King | 86,409 | Fair | 1966 |
| I-5 over Interurban AVE | King | 86,409 | Fair | 1966 |
| I-5 over SR 529 / Pacific AVE | Snohomish | 85,636 | Fair | 1966 |
| I-5 over SR 529 - Pacific AVE | Snohomish | 85,636 | Fair | 1966 |
| I-405 over Pedestrian Trail | King | 85,426 | Good | 1956 |
| I-405 over Pedestrian Trail | King | 85,426 | Good | 1970 |
| I-405 over NE 116th ST | King | 85,426 | Good | 2007 |
| I-405 over NE 116th ST | King | 85,426 | Good | 2006 |
| I-405 over Cedar River | King | 85,117 | Fair | 1993 |
| I-405 over Cedar River | King | 85,117 | Good | 1994 |
| I-5 over N-103rd Exp Ramp | King | 84,693 | Fair | 1964 |
| I-5 over SR 524 Spur/44th AVE W | Snohomish | 84,075 | Fair | 1963 |
| I-5 over SR 524 Spur/44th AVE W | Snohomish | 84,075 | Fair | 1963 |
| I-405 over Springbrook/oakesdale | King | 83,533 | Good | 2009 |
| I-405 over N-w Ramp | King | 83,247 | Good | 1965 |
| I-405 over N-w Ramp | King | 83,247 | Fair | 1966 |
| I-5 over NE 175th ST | King | 82,639 | Good | 1964 |
| I-5 over NE 175th ST | King | 82,639 | Good | 1964 |
| I-405 over NE 85th ST | King | 80,423 | Good | 1971 |
| I-405 over NE 85th ST | King | 80,423 | Good | 1971 |
| I-5 over Abandoned Rr | Snohomish | 78,048 | Good | 1967 |
| I-5 over Abandoned Rr | Snohomish | 78,048 | Fair | 1967 |
| I-5 over I-405 & Ramps | Snohomish | 77,502 | Good | 1964 |
| I-5 over SR 104 / NE 205th ST | King | 77,329 | Good | 1963 |
| I-5 over SR 104 / NE 205th ST | King | 77,329 | Good | 1963 |
| I-405 over Green River | King | 77,251 | Fair | 1964 |
| I-405 over SR 181 | King | 77,251 | Fair | 1964 |
| I-405 over Rr & City Streets | King | 77,251 | Fair | 1965 |
| I-5 SB over Fallout Shelter | King | 76,058 | Good | 1963 |
| I-405 over May Creek | King | 74,980 | Good | 1958 |
| I-405 over May Creek | King | 74,980 | Good | 2023 |
| I-90 over Mercer Sl | King | 74,410 | Poor | 1970 |
| I-90 over Mercer Slough | King | 74,410 | Poor | 1940 |
| I-5 Hov over I-705 SR 7 Ramps Rr | Pierce | 74,394 | Fair | 1964 |
| I-5 over I-705 SR 7 Ramps Rr | Pierce | 74,394 | Fair | 1964 |
| I-5 over I-705 SR 7 Ramps Rr | Pierce | 74,394 | Good | 2016 |
| Lake Wa Blvd/112th over I-405 | King | 73,753 | Good | 2023 |
| I-405 over Coal Creek Parkway SE | King | 71,797 | Fair | 1965 |
| I-405 over Coal Creek Parkway SE | King | 71,797 | Fair | 1965 |
| SR 16 over Cedar ST | Pierce | 71,543 | Fair | 1972 |
| SR 16 over Cedar ST | Pierce | 71,543 | Good | 1972 |
| SR 16 over Union AVE | Pierce | 71,543 | Good | 1972 |
| SR 16 over Union AVE | Pierce | 71,543 | Good | 1972 |
| I-5 over SB Viaduct Sta 2195 | King | 71,171 | Fair | 1964 |
| I-5 over King-jackson ST | King | 71,171 | Fair | 1965 |
| I-5 over King-jackson ST | King | 71,171 | Fair | 1965 |
| I-5 over Dearborn ST | King | 71,171 | Fair | 1965 |
| I-5 over Dearborn ST | King | 71,171 | Good | 1965 |
| I-405 NB over NE 44th ST | King | 70,736 | Good | 2023 |
| I-5 over SR 18 | King | 70,133 | Fair | 1959 |
| I-5 over SR 18 | King | 70,133 | Fair | 1959 |
| I-90 over Richards RD | King | 69,741 | Fair | 1940 |
| I-90 over Richards RD | King | 69,741 | Good | 1968 |
| I-5 over Owr N Rr | Thurston | 69,477 | Fair | 1957 |
| I-5 over Henderson BLVD | Thurston | 69,477 | Good | 1957 |
| I-5 over S 405 & N 525 Ramps | Snohomish | 69,203 | Fair | 1980 |
| I-405 over NE 132nd ST | King | 69,115 | Fair | 1970 |
| I-405 over NE 132nd ST | King | 69,115 | Fair | 1970 |
| Lk Wash Blvd/112th over I-405 | King | 68,675 | Good | 2024 |
| I-90 over Lake Washington | King | 68,544 | Poor | 1940 |
| EB I-90 over Lake Washington | King | 68,544 | Fair | 1940 |
| EB I-90 over Lake Washington | King | 68,544 | Good | 1940 |
| W.b. & Rev I-90 over Lake Washington | King | 68,544 | Poor | 1989 |
| WB I-90 over Lake Washington | King | 68,544 | Fair | 1989 |
| W.b. I-90 over Lake Washington | King | 68,544 | Fair | 1989 |
| Westbound I-90 over S Transit Rr Lakeview A | King | 68,544 | Good | 1989 |
| I-5 over Quilceda Creek | Snohomish | 68,535 | Good | 1953 |
| I-5 over Quilceda Creek | Snohomish | 68,535 | Fair | 1971 |
| I-405 over Sunset BLVD (old SR 900) | King | 68,154 | Fair | 1963 |
| I-5 over Clover Creek | Pierce | 67,232 | Fair | 1957 |
| I-5 over S M ST | Pierce | 67,156 | Good | 1959 |
| I-5 NB over SR 16 Eb/sb E/s-n Ramp | Pierce | 67,156 | Good | 2017 |
| I-5 SB over SR 16 Eb/sb Hov Ramps | Pierce | 67,156 | Good | 2019 |
| I-405 over Northup Way | King | 67,108 | Good | 1954 |
| I-405 over Bnrr & 115 AVE NE | King | 67,108 | Fair | 1954 |
| I-405 over SR 520 | King | 67,108 | Good | 1966 |
| I-405 over SR 520 | King | 67,108 | Good | 1966 |
| I-405 over Northup Way | King | 67,108 | Good | 1965 |
| I-405 over 115th AVE NE & Trail | King | 67,108 | Good | 1965 |
| I-90 over East Channel-lk Wash | King | 66,975 | Fair | 1981 |
| I-90 over East Channel-lk Wash | King | 66,975 | Fair | 1988 |
| SR 167 over Green River | King | 66,935 | Fair | 1967 |
| SR 167 over Green River | King | 66,935 | Fair | 1967 |
| I-5 Sbcd over King Jackson ST | King | 66,222 | Fair | 1965 |
| I-405 over SR 900 / N Park DR | King | 65,721 | Fair | 1966 |
| I-405 over SR 900 / N Park DR | King | 65,721 | Fair | 1966 |
| SR 500 over NE Gher RD & NE 112 AVE | Clark | 65,414 | Fair | 2004 |
| I-5 over Columbia River | Clark | 65,013 | Fair | 1916 |
| I-5 over Columbia River | Clark | 65,013 | Fair | 1958 |
| I-5 over Ebey Sl / SR 529 / Rr | Snohomish | 64,989 | Fair | 1954 |
| I-5 over Union Slough | Snohomish | 64,989 | Fair | 1968 |
| I-5 over Union Slough | Snohomish | 64,989 | Fair | 1968 |
| I-5 over Steamboat Slough | Snohomish | 64,989 | Fair | 1968 |
| I-5 over Steamboat Slough | Snohomish | 64,989 | Fair | 1968 |
| I-5 over Snohomish River Rr | Snohomish | 64,989 | Fair | 1968 |
| I-5 over Snohomish R Gn Ry | Snohomish | 64,989 | Fair | 1968 |
| I-5 over SR 529 NB Ramp | Snohomish | 64,989 | Fair | 1968 |
| I-5 over SR 529 NB Ramp | Snohomish | 64,989 | Fair | 1968 |
| I-5 over Sr529 Rr Ebey Sl 60th Pl | Snohomish | 64,989 | Fair | 1969 |
| I-5 over Pendleton AVE | Pierce | 64,714 | Fair | 1957 |
| I-405 over SR 169 | King | 64,434 | Fair | 1994 |
| I-405 over NE 3rd ST | King | 64,434 | Fair | 1993 |
| I-5 over Railroad - Laundry Spur | Pierce | 63,535 | Fair | 1957 |
| I-5 over Nisqually Overflow | Pierce | 62,815 | Fair | 1968 |
| I-5 over Nisqually Overflow | Pierce | 62,815 | Fair | 1983 |
| I-5 over Nisqually River | Thurston | 62,815 | Fair | 1937 |
| I-5 over Nisqually River | Thurston | 62,815 | Fair | 1967 |
| US 101 NB over I-5 Ramps Street | Thurston | 62,306 | Good | 1990 |
| I-5 over SR 528 4th ST | Snohomish | 62,168 | Fair | 1952 |
| I-5 over SR 528 4th ST | Snohomish | 62,168 | Good | 1971 |
| I-5 over US 2 Eb/hewitt AVE | Snohomish | 62,161 | Good | 1966 |
| I-5 over US 2 Eb/hewitt AVE | Snohomish | 62,161 | Good | 1966 |