San Francisco County, CA

170 public highway bridges

San Francisco County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, San Francisco County, California contains 170 public highway bridges. Roughly 16.5% are rated “Good,” 12.4% “Fair,” and 2.4% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

170

Total Bridges

16.5%

Good

12.4%

Fair

2.4%

Poor Condition

Condition Distribution

Good

16.5% (28)

Fair

12.4% (21)

Poor

2.4% (4)

All Bridges (170)

Sort:

NB AND SB RTE 280

Over: LYELL STREET

04-SF-280-R2.91-SF, San Francisco, CA

Built 1964 ADT: 600

MONTEREY BLV EB ON

Over: SAN JOSE,I280 RAMPS,BART

04-SF-280-R2.82-SF, San Francisco, CA

Built 1964 ADT: 5,000

MONTEREY BL WB ON

Over: BOSWORTH & SB280 ONRAMP

04-SF-280-R2.87-SF, San Francisco, CA

Built 1964 ADT: 1,650

SANJOSE-I280 RAMPS

Over: BOSWORTH STREET

04-SF-280-R2.90-SF, San Francisco, CA

Built 1964 ADT: 10,000

PEDESTRIAN WALKWAY

Over: INTERSTATE 280

04-SF-280-R2.04-SF, San Francisco, CA

Built 1964 ADT: 170,000

OCEAN AV, MUNIRAIL

Over: 280, 280 ON/OFF-RAMP

04-SF-280-R1.77-SF, San Francisco, CA

Built 1964 ADT: 153,800

GENEVA AVE

Over: ROUTE I 280

04-SF-280-R1.65-SF, San Francisco, CA

Built 1964 ADT: 166,000

PEDESTRIAN WALKWAY

Over: INTERSTATE 280

04-SF-280-R1.06-SF, San Francisco, CA

Built 1964 ADT: 166,000

20TH STREET

Over: ROUTE 280

04-SF-280-R6.39-SF, San Francisco, CA

Built 1968 ADT: 250

18TH STREET

Over: ROUTE 280

04-SF-280-R6.57-SF, San Francisco, CA

Built 1968 ADT: 350

INTERSTATE 280

Over: CHINA BASIN VIADUCT

04-SF-280-R6.61-SF, San Francisco, CA

Built 1971 ADT: 1,500

PEDESTRIAN WALKWAY

Over: U.S. HIGHWAY 101

04-SF-101-2.61-SF, San Francisco, CA

Built 1968 ADT: 234,000

BAYSHORE BLVD

Over: ROUTE 101

04-SF-101-0.56-SF, San Francisco, CA

Built 1970 ADT: 184,500

U.S.HIGHWAY 101

Over: CESAR CHAVEZ BLVD

04-SF-101-2.95-SF, San Francisco, CA

Built 1974 ADT: 130,000

CESAR CHVZ OFFRAMP

Over: POTRERO AVENUE

04-SF-101-2.96-SF, San Francisco, CA

Built 1974 ADT: 130,000

INTERSTATE 80 EB

Over: W80-FREMONT ST OFF RAMP

04-SF-080-4.95-SF, San Francisco, CA

Built 1935 ADT: 8,600

RTE 280 NB ON-RAMP

Over: CHINA BASIN, BERRY, 6 ST

04-SF-280-T7.18-SF, San Francisco, CA

Built 1998 ADT: 2,500

RTE 280 NB OFFRAMP

Over: CHINA BASIN, BERRY, 6 ST

04-SF-280-T7.18-SF, San Francisco, CA

Built 1998 ADT: 2,500

INTERSTATE 80 WB

Over: 2ND, 3RD AND 4TH STREET

04-SF-080-4.92-SF, San Francisco, CA

Built 2008 ADT: 27,000

INTERSTATE 80 EB

Over: 2ND, 3RD, AND 4TH

04-SF-080-4.92-SF, San Francisco, CA

Built 2008 ADT: 27,000

WB80-FREMONT ST

Over: ESX,HARR,CLEM,FOLSOM,1ST

04-SF-080-5.62R-SF, San Francisco, CA

Built 2008 ADT: 16,000

W80 - HARRISON OFF

Over: STERLING-E80,BRYANT,RNCN

04-SF-080-5.50L-SF, San Francisco, CA

Built 2008 ADT: 4,850

80 WB OFF RAMP

Over: 4TH STREET

04-SF-080-4.97-SF, San Francisco, CA

Built 2008 ADT: 9,900

I 280 S, AU LINE

Over: 280/101 INTERCHANGE

04-SF-280-R4.18L-SF, San Francisco, CA

Built 1960 ADT: 15,000

I 280 N, AL LINE

Over: 280/101 INTERCHANGE

04-SF-280-R4.16R-SF, San Francisco, CA

Built 1960 ADT: 24,800

I 280N-101N (RE)

Over: 280/101 INTERCHANGE

04-SF-280-R4.16R-SF, San Francisco, CA

Built 1960 ADT: 17,700

US101N-I 280S (WL)

Over: 280/101 INTERCHANGE

04-SF-101-1.79-SF, San Francisco, CA

Built 1960 ADT: 221,000

280N - 101S (WU)

Over: 280/101 INTERCHANGE

04-SF-101-1.79-SF, San Francisco, CA

Built 1960 ADT: 4,000

80 EB ONRAMP

Over: 4TH STREET

04-SF-080-4.97-SF, San Francisco, CA

Built 2008 ADT: 9,900

BIKE & PEDESTRIAN

Over: SB 101 OFF-RMP TO CS.CHV

04-SF-101-2.91-SF, San Francisco, CA

Built 2004 ADT: 12,400

US HIGHWAY 101 SB

Over: 101 NB - 1 SB CONNECTOR

04-SF-101-R9.58-SF, San Francisco, CA

Built 2011 ADT: 8,500

US HIGHWAY 101 NB

Over: 101 NB - 1 SB CONNECTOR

04-SF-101-R9.48-SF, San Francisco, CA

Built 2015 ADT: 59,000

US HIGHWAY 101 SB

Over: RTE 1 RMPS,CRISSY,COWLES

04-SF-101-R9.35-SF, San Francisco, CA

Built 2012 ADT: 8,000

US HIGHWAY 101 NB

Over: RTE 1N, LINCOLN,MCDOWELL

04-SF-101-R9.18-SF, San Francisco, CA

Built 2015 ADT: 64,000

101N -1S CONNECTOR

Over: STATE ROUTE 1

04-SF-101-R9.40-SF, San Francisco, CA

Built 2015 ADT: 64,000

1NB-101S CONNECTOR

Over: LINCOLN BLVD

04-SF-001-7.00-SF, San Francisco, CA

Built 2012 ADT: 3,250

U.S. HIGHWAY 101

Over: 13TH ST,MISSION &OTIS ST

04-SF-101-R4.74-SF, San Francisco, CA

Built 2005 ADT: 22,000

CALTRAIN & UP RR

Over: CESAR CHAVEZ ST

JUST W O/PENNSYLVANIA AVE, San Francisco, CA

Built 1936 ADT: 20,729

PEDESTRIAN WALKWAY

Over: SAN JOSE AVE

OVER SAN JOSE AVE, San Francisco, CA

Built 1963 ADT: 36,960

RICHLAND AVE

Over: SAN JOSE AVE

SOUTH OF 34C0016, San Francisco, CA

Built 1927 ADT: 50,000

HIGHLAND AVE

Over: SAN JOSE AVE

NORTH OF 34C0015, San Francisco, CA

Built 1930 ADT: 50,000

PEDESTRIAN WALKWAY

Over: BOSWORTH STREET

1000 FT WEST OF S JOSE AV, San Francisco, CA

Built 1965 ADT: 22,315

PEDESTRIAN WALKWAY

Over: CESAR CHAVEZ ST

OVER ARMY STREET, San Francisco, CA

Built 1972 ADT: 63,120

POTRERO AVE

Over: CESAR CHAVEZ ST

OVER CESAR CHAVEZ ST, San Francisco, CA

Built 1974 ADT: 30,960

PEDESTRIAN WALKWAY

Over: MARKET STREET

OVER MARKET ST, San Francisco, CA

Built 1958 ADT: 27,000

PEDESTRIAN WALKWAY

Over: MARKET STREET

OVER MARKET STREET, San Francisco, CA

Built 1958 ADT: 25,989

HYDE ST

Over: BROADWAY

OVER BROADWAY, San Francisco, CA

Built 1952 ADT: 50,000

PEDESTRIAN WALKWAY

Over: PORTOLA DRIVE

JUST W/O KENSINGTON WY, San Francisco, CA

Built 1971 ADT: 25,989

FILLMORE ST

Over: GEARY BLVD

OVER GEARY BLVD, San Francisco, CA

Built 1961 ADT: 41,040

PEDESTRIAN WALKWAY

Over: GEARY BLVD

OVER GEARY BLVD, San Francisco, CA

Built 1966 ADT: 52,440

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

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Compiled by PlainBridges, Independent data publisher

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.