| Special Bridge Conditions Legend |
| ! | Confirmed demolition date within one year or an especially historic bridge that is threatened with demolition at any level. |
| X | The bridge has been confirmed demolished or collapsed. |
| S | The bridge has been dismantled or moved to an offsite location and is not currently available for public viewing. |
| L | Most or all of the original bridge material has been demolished and replaced, including historically significant elements, but some original parts of the bridge remain. |
| Note: This website cannot guarantee the current condition of any bridge on this website. Bridges lacking these icons should not necessarily be considered condition-free. |
| Bridge Name | HSR Rating | Facility Carried / Feature Intersected | Location | Structure Type | Structure Dimensions | Construction Date / Builder or Contractor | Description | Thumbnail |
3rd Street Bridge
Lefty O'Doul Bridge |
 | 3rd Street Over China Basin | San Francisco: San Francisco County, California | Metal Rivet-Connected Pratt Through Truss, Movable: Bascule (Heel Trunnion) and Approach Spans: Concrete T-Beam, Fixed |
Total Length: 295 ft Main Span Length: 143 ft Roadway Width: 71.5 ft Main Spans: 1 |
1933 By: Barrett and Hilp of San Francisco, California and Strauss Engineering Company of Chicago, Illinois | This Strauss heel-trunnion bascule bridge has an extra section of roadway cantilevered out from one side of the bridge. | 
|
3rd Street Islais Creek Bridge
Levon Hagop Nishkian Bridge |
 | 3rd Street Over Islais Creek | San Francisco: San Francisco County, California | Metal Through Girder, Movable: Bascule (Fixed Trunnion) |
Total Length: 120 ft Main Span Length: 105 ft Roadway Width: 68.2 ft Main Spans: 1 |
1945 By: Unknown and Leon Hagop Nishkian of San Francisco, California | This wide bascule with three girder lines has racks that extend above the deck. | 
|
4th Street Bridge
Peter R. Maloney Bridge |
| 4th Street Over China Basin | San Francisco: San Francisco County, California | Metal Rivet-Connected Warren Pony Truss, Movable: Bascule (Strauss Trunnion) and Approach Spans: Concrete T-Beam, Fixed |
Total Length: 205 ft Main Span Length: 94 ft Roadway Width: 40 ft Main Spans: 1 |
1916 By: Unknown and Strauss Bascule Bridge Company of Chicago, Illinois | This bridge is an early and rare example of a Strauss vertical overhead counterweight type bascule. | 
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Alemany Boulevard Bridge
|
| Alemany Boulevard Over CA-1 (Cabrillo Highway) | San Francisco: San Francisco County, California | Concrete Cantilever Deck Girder, Fixed |
Total Length: 989 ft Main Span Length: 79 ft Roadway Width: 24.6 ft Main Spans: 12 |
1950 By: Unknown | This is an unusual bridge with its curved, cantilevered concrete girders. | 
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Alvord Lake Bridge
Kezar Drive Bridge |
 | Kezar Drive Over Pedestrian Walkway | San Francisco: San Francisco County, California | Concrete Closed Spandrel Deck Arch, Fixed |
Main Span Length: 29 ft Roadway Width: 64 ft Main Spans: 1 |
1889 By: Unknown and Ernest L. Ransome of New York, New York | This small bridge has national significance as the oldest reinforced concrete bridge in the entire country! | 
| X |
Doyle Drive Bridge
Presidio Viaduct |
 | Doyle Drive (Presidio Parkway) Over Crissy Field Avenue and Valley | San Francisco: San Francisco County, California | Metal 7 Panel Rivet-Connected Pratt Deck Truss, Fixed and Approach Spans: Metal Stringer (Multi-Beam), Fixed |
Total Length: 1521 ft Main Span Length: 134.8 ft Roadway Width: 60 ft Main Spans: 8 |
1936 By: Eaton and Smith | Literally a part of the project to construct the Golden Gate Bridge, this significance did not spare this impressive deck truss from the dumpster. | 
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Evans Avenue Bridge
|
 | Evans Avenue Over Storage Area and Parking Lot | San Francisco: San Francisco County, California | Concrete Continuous Curved T-Beam, Fixed |
Total Length: 108 ft Main Span Length: 54 ft Roadway Width: 64 ft Main Spans: 3 |
1947 By: Unknown | This is an attractive continuous concrete curved t-beam bridge. | 
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Golden Gate Bridge
|
| US-101 and CA-1 Over San Francisco Bay | San Francisco and Sausalito: San Francisco County, California and Marin County, California | Metal Deck Truss Stiffening Wire Cable Suspension, Fixed and Approach Spans: Metal Braced Ribbed Deck Arch, Fixed |
Total Length: 8981 ft Main Span Length: 4200 ft Roadway Width: 62 ft Main Spans: 3 |
1937 By: Bethlehem Steel Company of Bethlehem, Pennsylvania and Charles Ellis and Joseph Strauss | This enormous suspension bridge is one of the most famous and beloved bridges on the planet. | 
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Harrison Street Bridge
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| Harrison Street Over Beale Street | San Francisco: San Francisco County, California | Concrete Curved T-Beam, Fixed |
Total Length: 181 ft Main Span Length: 83 ft Roadway Width: 66.6 ft Main Spans: 3 |
1936 By: Unknown | This is a nice looking curved t-beam overpass hidden right in downtown San Francisco. | 
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Highland Street Bridge
|
 | Highland Street Over San Jose Avenue and Railroad | San Francisco: San Francisco County, California | Concrete T-Beam, Fixed |
Total Length: 206 ft Main Span Length: 121 ft Roadway Width: 28 ft Main Spans: 3 |
1930 By: Unknown | This is one of two nearby similar overpasses that are impressive t-beam structures with an unusual alteration. | 
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Lincoln Way Bridge
|
 | Lincoln Way Over Sunset Boulevard | San Francisco: San Francisco County, California | Concrete Curved T-Beam, Fixed |
Total Length: 240 ft Main Span Length: 65 ft Roadway Width: 59 ft Main Spans: 4 |
1932 By: F. C. Amoroso and Sons of San Francisco, California | This bridge is an attractive and unaltered example of a 1930s highway over highway grade separation. | 
|
Main Drive Bridge
Tunnel Under Main Drive |
 | Main Drive (Middle Drive, Nanci Pelosi Drive) Over Pedestrian Walkway | San Francisco: San Francisco County, California | Concrete Closed Spandrel Deck Arch, Fixed | Main Spans: 1 | 1894 By: Unknown | This structure that carries a highway over a park walkway appears to be an extremely old concrete structure. | 
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Richland Avenue Bridge
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| Richland Avenue Over San Jose Avenue and Railroad | San Francisco: San Francisco County, California | Concrete T-Beam, Fixed |
Total Length: 235 ft Main Span Length: 121 ft Roadway Width: 28 ft Main Spans: 3 |
1927 By: Unknown | This is one of two nearby similar overpasses that are impressive t-beam structures with an unusual alteration. | 
|
Roman Bridge
North Stow Lake Bridge |
| Pedestrian Walkway Over Stow Lake | San Francisco: San Francisco County, California | Concrete Closed Spandrel Deck Arch, Fixed | Main Spans: 1 | 1893 By: Gray Brothers Artificial Stone Paving Company of San Francisco, California and Arthur Page Brown | This is among the oldest surviving concrete bridges, yet it has a strikingly modern, streamlined appearance. | 
|
Rustic Stone Bridge
South Stow Lake Bridge |
 | Pedestrian Walkway Over Stow Lake | San Francisco: San Francisco County, California | Stone Segmental Deck Arch, Fixed | Main Spans: 2 | 1893 By: Unknown and Arthur Page Brown | This bridge has a brick barrel and is faced in large, random rocks giving the bridge a unique appearance. | 
| ! |
San Francisco Oakland Bay Bridge
|
| I-80 Over San Francisco Bay | San Francisco and Oakland: San Francisco County, California and Alameda County, California | Metal Deck Truss Stiffening Wire Cable Suspension, Fixed and Approach Spans: Metal Cantilever Rivet-Connected Modified Warren Through Truss, Fixed |
Total Length: 22655 ft Main Span Length: 2310 ft Roadway Width: 58 ft Main Spans: 9 |
1936 By: American Bridge Company of New York, New York and Charles Henry Purcell, Charles E. Andrew, and Glen Woodruff | Both a suspension bridge and a cantilever truss bridge, and one of the largest and most important historic bridges in the country, half of this bridge is slated for demolition. | 
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Sloat Boulevard Bridge
|
| Sloat Boulevard (CA-35) Over Sunset Boulevard | San Francisco: San Francisco County, California | Concrete Curved T-Beam, Fixed |
Total Length: 240 ft Main Span Length: 65 ft Roadway Width: 88 ft Main Spans: 6 |
1931 By: Unknown | This bridge is an attractive and unaltered example of a 1930s highway over highway grade separation. | 
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