Contra Costa County, CA

686 public highway bridges

Contra Costa County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Contra Costa County, California contains 686 public highway bridges. Roughly 29.7% are rated “Good,” 26.1% “Fair,” and 5.5% “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.

686

Total Bridges

29.7%

Good

26.1%

Fair

5.5%

Poor Condition

Condition Distribution

Good

29.7% (204)

Fair

26.1% (179)

Poor

5.5% (38)

All Bridges (686)

Sort:

EL CURTOLA BLVD

Over: STATE ROUTE 24 & BARTD

04-CC-024-R8.27, Contra Costa, CA

Built 1971 ADT: 159,000

S680-W24 CONNECTOR

Over: N680-W24, CAMINO DIABLO

04-CC-680-14.40-WLC, Contra Costa, CA

Built 1997 ADT: 5,000

E24/N680 CONNECTOR

Over: N680/W24 CONN,I-680,C.D.

04-CC-024-R8.86-WLC, Contra Costa, CA

Built 1998 ADT: 30,000

E24-S680 CONNECTOR

Over: BOULEVARD WAY

04-CC-024-R8.77-WLC, Contra Costa, CA

Built 1994 ADT: 9,970

INTERSTATE 680 SB

Over: MT DIABLO BOULEVARD

04-CC-680-14.22-WLC, Contra Costa, CA

Built 1995 ADT: 33,500

INTERSTATE 680 NB

Over: MT DIABLO BOULEVARD

04-CC-680-14.22-WLC, Contra Costa, CA

Built 1998 ADT: 33,500

N680-W24 CONNECTOR

Over: OLYMPIC BLVD,I-680

04-CC-680-14.15-WLC, Contra Costa, CA

Built 1998 ADT: 5,900

STATE ROUTE 24

Over: HAPPY VALLEY ROAD

04-CC-024-R5.97-LFYT, Contra Costa, CA

Built 1970 ADT: 11,400

STATE ROUTE 24

Over: HAPPY VALLEY ROAD

04-CC-024-R5.97-LFYT, Contra Costa, CA

Built 1957 ADT: 11,400

STATE ROUTE 24

Over: OAK HILL ROAD

04-CC-024-R6.26-LFYT, Contra Costa, CA

Built 1970 ADT: 11,400

STATE ROUTE 24

Over: OAK HILL ROAD

04-CC-024-R6.26-LFYT, Contra Costa, CA

Built 1971 ADT: 11,400

STATE ROUTE 24

Over: EL NIDO RANCH RD,AQUEDUC

04-CC-024-R4.90-LFYT, Contra Costa, CA

Built 1969 ADT: 3,870

STATE ROUTE 24

Over: EL NIDO RANCH RD

04-CC-024-R4.90-LFYT, Contra Costa, CA

Built 1957 ADT: 3,870

STATE ROUTE 580

Over: STENMARK DR SB ON-RAMP

04-CC-580-6.01-RCH, Contra Costa, CA

Built 1956 ADT: 3,000

INTERSTATE 80

Over: BNSF,SYCAMORE,WILLOW

04-CC-080-9.72-HER, Contra Costa, CA

Built 1998 ADT: 30,000

W4-W80 CONNECTOR

Over: BNSF, WILLOW, SYCAMORE

04-CC-004-0.01-HER, Contra Costa, CA

Built 1983 ADT: 1,200

APPIAN WAY SB

Over: INTERSTATE 80

04-CC-080-7.60-PIN, Contra Costa, CA

Built 1957 ADT: 190,000

INTERSTATE 80

Over: STATE ROUTE 4 & RAMPS

04-CC-080-10.02-HER, Contra Costa, CA

Built 1958 ADT: 16,000

CUMMINGS SKYWAY

Over: INTERSTATE 80

04-CC-080-12.75, Contra Costa, CA

Built 1958 ADT: 115,000

INTERSTATE 80

Over: WILLOW AVENUE

04-CC-080-10.69-HER, Contra Costa, CA

Built 1958 ADT: 19,200

E80-WILLOW AVENUE

Over: WILLOW AVENUE

04-CC-080-10.69-HER, Contra Costa, CA

Built 2010 ADT: 19,200

PEDESTRIAN WALKWAY

Over: INTERSTATE 80

04-CC-080-0.50-RCH, Contra Costa, CA

Built 1996 ADT: 179,000

INTERSTATE 680

Over: NEWELL AVENUE

04-CC-680-13.67-WLC, Contra Costa, CA

Built 1994 ADT: 195,300

INTERSTATE 680

Over: OLYMPIC BOULEVARD

04-CC-680-13.93-WLC, Contra Costa, CA

Built 1994 ADT: 25,000

STATE ROUTE 242

Over: WILLOW PASS ROAD

04-CC-242-R0.87-CND, Contra Costa, CA

Built 1963 ADT: 24,000

INTERSTATE 680

Over: LILAC DRIVE

04-CC-680-13.46-WLC, Contra Costa, CA

Built 1960 ADT: 3,115

INTERSTATE 680

Over: SOUTH MAIN STREET

04-CC-680-13.08-WLC, Contra Costa, CA

Built 1959 ADT: 14,871

BNSF RY & AMTRAK

Over: INTERSTATE 680

04-CC-680-22.20, Contra Costa, CA

Built 1962 ADT: 118,000

N680-PACHECO OFFRP

Over: INTERSTATE ROUTE 680

04-CC-680-22.43, Contra Costa, CA

Built 1962 ADT: 118,000

INTERSTATE 680 SB

Over: UPRR,MARINA VISTA,MOCOCO

04-CC-680-24.26, Contra Costa, CA

Built 1962 ADT: 7,000

STATE ROUTE 4

Over: INTERSTATE ROUTE 680

04-CC-004-12.64, Contra Costa, CA

Built 1962 ADT: 165,000

INTERSTATE 680

Over: CENTER AVE

04-CC-680-20.38, Contra Costa, CA

Built 1962 ADT: 6,300

STATE ROUTE 4

Over: PACHECO BLVD

04-CC-004-12.41, Contra Costa, CA

Built 1962 ADT: 15,000

HILLCREST AVE NB

Over: STATE ROUTE 4

04-CC-004-R28.94-ANT, Contra Costa, CA

Built 1997 ADT: 94,000

HILLCREST AVE SB

Over: STATE ROUTE 4

04-CC-004-R28.90-ANT, Contra Costa, CA

Built 1971 ADT: 94,000

SB SR 242 ON-RAMP

Over: CONCORD AVENUE

04-CC-242-R1.40-CND, Contra Costa, CA

Built 1996 ADT: 33,549

WILDER ROAD

Over: STATE ROUTE 24

04-CC-024-1.20, Contra Costa, CA

Built 1964 ADT: 159,000

W4-W80 CONNECTOR

Over: STATE ROUTE 4

04-CC-004-0.20-HER, Contra Costa, CA

Built 1958 ADT: 40,500

E4-E80 CONNECTOR

Over: STATE ROUTE 4

04-CC-004-L0.15-HER, Contra Costa, CA

Built 1958 ADT: 40,500

INTERSTATE 680

Over: CONCORD AVE

04-CC-680-19.86-CND, Contra Costa, CA

Built 1962 ADT: 10,500

INTERSTATE 680

Over: LIVORNA ROAD

04-CC-680-R11.28-ALMO, Contra Costa, CA

Built 1964 ADT: 7,052

SYCAMORE VALLEY RD

Over: INTERSTATE 680

04-CC-680-R6.76-DNVL, Contra Costa, CA

Built 1964 ADT: 192,200

INTERSTATE 680

Over: DIABLO ROAD

04-CC-680-R7.55-DNVL, Contra Costa, CA

Built 1964 ADT: 24,300

INTERSTATE 680

Over: EL CERRO BOULEVARD

04-CC-680-R8.18-DNVL, Contra Costa, CA

Built 1964 ADT: 18,862

INTERSTATE 680

Over: STONE VALLEY ROAD

04-CC-680-R10.37, Contra Costa, CA

Built 1964 ADT: 7,000

STATE ROUTE 4 WB

Over: BAILEY ROAD

04-CC-004-R20.10, Contra Costa, CA

Built 1995 ADT: 15,000

STATE ROUTE 4 EB

Over: BAILEY ROAD

04-CC-004-R20.10, Contra Costa, CA

Built 1994 ADT: 15,000

NORRIS CANYON ROAD

Over: INTERSTATE 680

04-CC-680-R3.76-SRMN, Contra Costa, CA

Built 1966 ADT: 170,100

CROW CANYON ROAD

Over: INTERSTATE 680

04-CC-680-R4.18-SRMN, Contra Costa, CA

Built 1966 ADT: 172,000

STATE ROUTE 242

Over: SOLANO WAY

04-CC-242-R2.15-CND, Contra Costa, CA

Built 1963 ADT: 16,900

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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