| Name | Location | Status | Design | Year Built | Year Lost | Span Length | Total Length |
|---|---|---|---|---|---|---|---|
| 12th Avenue South Bridge | 12th Avenue S over WA 90 (Dearborn Street) | Open to traffic | Steel arch | 1917 | -- | 170.9 ft. | 456.1 ft. |
| 14th Avenue South Bridge | 14th Avenue South over Duwamish River | Open to traffic | Other | 1931 | -- | 240.2 ft. | 1285.2 ft. |
| Battery Street Tunnel | WA 99 under City streets | Open to traffic | Tunnel | 1954 | -- | -- | 2140.2 ft. |
| Cascade Stevens Highway Bridge | Cascade Stevens Highway over Miller River | Open to traffic | Through truss | 1922 | -- | 160.1 ft. | 228.0 ft. |
| Cowen Park Ravine Bridge | 15th Avenue NE over Cowen Park Ravine | Open to traffic | Arch | 1936 | -- | 160.1 ft. | 358.0 ft. |
| Cumberland-Kanaske Road Bridge | Cumberland-Kanaske Road over Green River | Open to traffic | Arch | 1918 | -- | 100.1 ft. | 220.2 ft. |
| Deshutes River Bridge | W 4th Avenue over Deshutes River | Open to traffic | Arch | 1920 | -- | -- | 950.2 ft. |
| Duwamish River Bridge | WA 99 over Duwamish River | Open to traffic | Other | 1956 | -- | -- | 3010.0 ft. |
| Duwamish River Bridge | 42nd Avenue S over Duwamish River | Open to traffic | Through truss | 1949 | -- | 220.2 ft. | 284.1 ft. |
| Duwamish River West Bridge | Southbound WA 99 over Duwamish River West | Open to traffic | Other | 1996 | -- | 379.0 ft. | 2895.2 ft. |
| Eastlake Avenue Bridge | Eastlake Avenue NE over Portage Bay | Open to traffic | Other | 1915 | -- | 217.9 ft. | 291.0 ft. |
| Eastlake Avenue NE Bridge | Eastlake Avenue NE over NE Pacific Street | Open to traffic | Deck truss | 1930 | -- | 132.9 ft. | 975.1 ft. |
| Eastlake Avenue NE Bridge | Eastlake Avenue Ne over Portage Bay | Open to traffic | Deck truss | 1930 | -- | 100.1 ft. | 203.1 ft. |
| Edgewick Road Bridge | Edgewick Road over South Fork Snoqualmie River | Open to traffic | Truss | 1920 | -- | -- | 186.0 ft. |
| Fauntleroy Bridge | WA 160 over Puget Sound | Open to traffic | Other | 1957 | -- | 89.9 ft. | 648.0 ft. |
| Foss River Road Bridge | Foss River Road over Foss River | Open to traffic | Pony truss | 1951 | -- | 80.1 ft. | 120.1 ft. |
| Franklin Road Bridge | Franklin Road over Green River | Open to traffic | Deck truss | 1914 | -- | 283.2 ft. | 437.0 ft. |
| Fremont Bridge | Fremont Avenue North over Lake Washington Ship Canal | Open to traffic | Other | 1917 | -- | -- | 316.9 ft. |
| Green River Bridge | WA 18 over Green River | Open to traffic | Through truss | 1959 | -- | 200.1 ft. | 371.1 ft. |
| Green River Bridge | S. 3rd Avenue over Green River | Open to traffic | Through truss | 1914 | -- | 132.9 ft. | 274.9 ft. |
| Green River Bridge | 228 Place SE over Green River | Open to traffic | Cable-stayed | 1991 | -- | 230.0 ft. | 361.9 ft. |
| Green River Bridge | WA 169 over Green River | Open to traffic | Deck truss | 1932 | -- | 147.0 ft. | 688.0 ft. |
| Index Creek Road Bridge | NE Index Creek Road over South Fork Skykomish River | Open to traffic | Wire suspension | 1930 | -- | 272.0 ft. | 339.9 ft. |
| Interlaken Blvd. Bridge | E. Interlaken Blvd. over 26th Avenue E | Open to traffic | Arch | 1912 | -- | 41.0 ft. | 61.0 ft. |
| Jones Road Bridge | Jones Road over Cedar River | Open to traffic | Truss | 1912 | -- | -- | 277.9 ft. |
| Kent-Des Moines Road Bridge | Kent-Des Moines Road over Green River | Open to traffic | Through truss | 1958 | -- | 240.2 ft. | 245.1 ft. |
| Lake Union Bridge | WA 99 over Lake Union | Open to traffic | Deck truss | 1931 | -- | 799.9 ft. | 2955.2 ft. |
| Lake Washington Blvd. Bridge | Pedestrian trail over Lake Washington Blvd. E | Open to traffic | Arch | 1910 | -- | -- | 180.1 ft. |
| Lake Washington Ship Canal Bridge | I-5 over Lake Washington Ship Canal | Open to traffic | Deck truss | 1962 | -- | 551.9 ft. | 4429.4 ft. |
| McGraw Street Bridge | McGraw Street over Ravine | Open to traffic | Arch | 1935 | -- | 140.1 ft. | 237.9 ft. |
| Mercer Island Tunnel | I-90 under | Open to traffic | Tunnel | 1989 | -- | -- | 1112.9 ft. |
| Mill Creek Bridge | WA 181 over Mill Creek | Open to traffic | Arch | 1915 | -- | 29.9 ft. | 35.1 ft. |
| Montlake Blvd. Bridge | Pedestrian trail over Montlake Blvd. | Open to traffic | Arch | 1938 | -- | -- | 221.1 ft. |
| Montlake Cut Bridge | WA 513 over Montlake Cut | Open to traffic | Other | 1924 | -- | 182.1 ft. | 345.2 ft. |
| Mount Si Road Bridge | Mount Si Road over Middle Fork Snoqualmie River | Open to traffic | Through truss | 1904 | -- | 171.9 ft. | 290.0 ft. |
| Mt. Baker Ridge Tunnel | I-90 under Mt. Baker Ridge | Open to traffic | Tunnel | 1940 | -- | -- | 1476.1 ft. |
| Newaukum Creek Bridge | SE 400th Street over Newaukum Creek | Open to traffic | Arch | 1927 | -- | 24.0 ft. | 24.0 ft. |
| Port Vashon Bridge | WA 160 over Puget Sound | Open to traffic | Other | 1957 | -- | 89.9 ft. | 834.0 ft. |
| Queen Anne Drive Bridge | N. Queen Anne Drive over Ravine | Open to traffic | Steel arch | 1935 | -- | 140.1 ft. | 327.1 ft. |
| Raging River Bridge | SE 68th Street over Raging River | Open to traffic | Arch | 1915 | -- | 49.9 ft. | 49.9 ft. |
| Raging River Bridge | 328 Way SE over Raging River | Open to traffic | Through truss | 1998 | -- | 120.1 ft. | 125.0 ft. |
| Salmon Bay Waterway Bridge | 15th Avenue W over Salmon Bay Waterway | Open to traffic | Other | 1917 | -- | -- | 295.0 ft. |
| Sammamish River Bridge | NE 90th Street over Sammamish River | Open to traffic | Concrete through arch | 2001 | -- | -- | 220.2 ft. |
| Snoqualmie River Bridge | WA 202 over Snoqualmie River | Open to traffic | Through truss | 1931 | -- | 220.2 ft. | 443.9 ft. |
| Snoqualmie River Bridge | NE 32nd Street over Snoqualmie River | Open to traffic | Through truss | 1922 | -- | 200.1 ft. | 695.9 ft. |
| Snoqualmie River Bridge | 394 Place SE over Snoqualmie River | Open to traffic | Truss | 1921 | -- | -- | 373.0 ft. |
| Snoqualmie River Bridge | NE 124th Street over Snoqualmie River | Open to traffic | Steel through arch | 2000 | -- | 295.0 ft. | 623.1 ft. |
| South Fork Skykomish River Bridge | US 2 over South Fork Skykomish River | Open to traffic | Through truss | 1938 | -- | 243.1 ft. | 338.9 ft. |
| South Fork Skykomish River Bridge | 5th Street N over South Fork Skykomish River | Open to traffic | Through truss | 1939 | -- | 220.2 ft. | 278.9 ft. |
| South Fork Snoqualmie River Bridge | Bridge over South Fork Snoqualmie River | Open to traffic | Arch | 1927 | -- | -- | 210.0 ft. |
| South Fork Snoqualmie River Bridge | Bridge over South Fork Snoqualmie River | Open to traffic | Truss | 1920 | -- | -- | 103.0 ft. |
| Spokane Street Bridge | SW Spokane Street over W. Waterway of Duwamish River | Open to traffic | Other | 1991 | -- | 440.0 ft. | 836.0 ft. |
| Stossel Bridge | NE Carnation Farm Road over Snoqualmie River | Open to traffic | Through truss | 1951 | -- | 180.1 ft. | 330.1 ft. |
| Taylor Creek Bridge | Watershed Road #9 over Taylor Creek | Open to traffic | Pony truss | 1910 | -- | 49.9 ft. | 51.8 ft. |
| Tolt River Bridge | WA 203 over Tolt River | Open to traffic | Through truss | 1977 | -- | 160.1 ft. | 268.1 ft. |
| US 2 Tunnel | US 2 under | Open to traffic | Tunnel | 1937 | -- | -- | 184.1 ft. |
| WA 99 Bridge | Pedestrian trail over WA 99 | Open to traffic | Arch | 1933 | -- | -- | 77.1 ft. |
| Woodbine Way Bridge | Woodbine Way over Ravine | Open to traffic | Arch | 1928 | -- | 17.1 ft. | 21.0 ft. |