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)

SR 160 SB

Unknown

Over: WILBUR AVENUE

04-CC-160-1.50, Contra Costa, CA

Built 1971 ADT: 23,000

INTERSTATE 80

Unknown

Over: POTRERO AVE & S80 ON RMP

04-CC-080-1.67-ECR, Contra Costa, CA

Built 1956 ADT: 9,620

BNSF RY

Unknown

Over: STATE ROUTE 4 EB

04-CC-004-R3.66R, Contra Costa, CA

Built 1925 ADT: 43,500

S242-S680 CONNECTR

Unknown

Over: INTERSTATE 680

04-CC-242-R0.08-CND, Contra Costa, CA

Built 1963 ADT: 229,000

SR 160 SB

Unknown

Over: E 18TH STREET

04-CC-160-1.00, Contra Costa, CA

Built 1971 ADT: 36,700

SR 160 NB

Unknown

Over: E 18TH STREET

04-CC-160-1.00, Contra Costa, CA

Built 1971 ADT: 36,700

E24-PLEASANT HILL

Unknown

Over: MOUNT DIABLO BOULEVARD

04-CC-024-R7.60-LFYT, Contra Costa, CA

Built 1971 ADT: 16,700

I 580 EB OFF RAMP

Unknown

Over: BNSF RY & GARRARD BLVD

04-CC-580-R4.82-RCH, Contra Costa, CA

Built 1991 ADT: 3,000

EB ONRAMP

Unknown

Over: BNSF RY & GARRARD BLVD

04-CC-580-R4.82-RCH, Contra Costa, CA

Built 1980 ADT: 3,000

I 580 EB

Unknown

Over: BNSF RY & GARRARD BLVD

04-CC-580-R4.82-RCH, Contra Costa, CA

Built 1980 ADT: 3,000

I 580 WB

Unknown

Over: BNSF RY & GARRARD BLVD

04-CC-580-R4.81-RCH, Contra Costa, CA

Built 1991 ADT: 3,000

CANAL BL-W580 ONRP

Unknown

Over: BNSF RY & GARRARD BLVD

04-CC-580-R4.81-RCH, Contra Costa, CA

Built 1980 ADT: 3,000

INTERSTATE 680

Unknown

Over: RUDGEAR ROAD

04-CC-680-R12.61-WLC, Contra Costa, CA

Built 1964 ADT: 3,140

INTERSTATE 80 WB

Unknown

Over: CUTTING BLVD

04-CC-080-2.04-RCH, Contra Costa, CA

Built 1997 ADT: 23,140

INTERSTATE 80 EB

Unknown

Over: CUTTING BLVD

04-CC-080-2.04-RCH, Contra Costa, CA

Built 1997 ADT: 23,140

INTERSTATE 80

Unknown

Over: MACDONALD AVE & E80 OFF

04-CC-080-2.62-RCH, Contra Costa, CA

Built 1956 ADT: 4,420

E80-MACDONALD OFF

Unknown

Over: MACDONALD AVE & E80 OFF

04-CC-080-2.59-RCH, Contra Costa, CA

Built 1979 ADT: 4,420

INTERSTATE 80

Unknown

Over: BARRETT AVENUE

04-CC-080-2.82-RCH, Contra Costa, CA

Built 1956 ADT: 18,550

E80-SAN PABLO OFF

Unknown

Over: BARRETT AVENUE

04-CC-080-2.82-RCH, Contra Costa, CA

Built 1997 ADT: 18,550

INTERSTATE 80

Unknown

Over: SAN PABLO AVENUE

04-CC-080-2.96-RCH, Contra Costa, CA

Built 1956 ADT: 19,200

W80-BARRETT OFFRMP

Unknown

Over: SAN PABLO AVENUE

04-CC-080-2.97-RCH, Contra Costa, CA

Built 1964 ADT: 19,200

SOLANO AVENUE

Unknown

Over: INTERSTATE 80

04-CC-080-3.40-RCH, Contra Costa, CA

Built 1996 ADT: 179,000

MCBRYDE AVENUE

Unknown

Over: INTERSTATE 80

04-CC-080-3.80-RCH, Contra Costa, CA

Built 1997 ADT: 179,000

SAN PABLO DAM ROAD

Unknown

Over: INTERSTATE 80

04-CC-080-4.34-SPB, Contra Costa, CA

Built 1956 ADT: 179,000

W24-CAMINO PABLO

Unknown

Over: CAMINO PABLO

04-CC-024-R2.31-ORIN, Contra Costa, CA

Built 1969 ADT: 4,460

STATE ROUTE 24 WB

Unknown

Over: CAMINO PABLO

04-CC-024-R2.31-ORIN, Contra Costa, CA

Built 1969 ADT: 4,460

STATE ROUTE 24 EB

Unknown

Over: CAMINO PABLO

04-CC-024-R2.31-ORIN, Contra Costa, CA

Built 1954 ADT: 4,460

INTERSTATE 680

Unknown

Over: MONUMENT BOULEVARD

04-CC-680-R17.70-PLHL, Contra Costa, CA

Built 1998 ADT: 35,000

SR 24 WB RAMP

Unknown

Over: PLEASANT HILL ROAD

04-CC-024-R7.66-LFYT, Contra Costa, CA

Built 1970 ADT: 45,700

SR 24 WB

Unknown

Over: PLEASANT HILL ROAD

04-CC-024-R7.66-LFYT, Contra Costa, CA

Built 1970 ADT: 45,700

SR 24 EB

Unknown

Over: PLEASANT HILL ROAD

04-CC-024-R7.66-LFYT, Contra Costa, CA

Built 1971 ADT: 45,700

SR 24 EB RAMP

Unknown

Over: PLEASANT HILL ROAD

04-CC-024-R7.66-LFYT, Contra Costa, CA

Built 1971 ADT: 45,700

OAKLEY ROAD

Unknown

Over: STATE ROUTE 160

04-CC-160-0.48, Contra Costa, CA

Built 1971 ADT: 23,900

STATE ROUTE 24

Unknown

Over: ACALANES ROAD

04-CC-024-R4.40-LFYT, Contra Costa, CA

Built 1969 ADT: 16,700

STATE ROUTE 24 WB

Unknown

Over: ACALANES ROAD

04-CC-024-R4.40-LFYT, Contra Costa, CA

Built 1969 ADT: 16,700

STATE ROUTE 24 EB

Unknown

Over: ACALANES ROAD

04-CC-024-R4.40-LFYT, Contra Costa, CA

Built 1959 ADT: 16,700

E24 & ACALANES RD

Unknown

Over: ACALANES ROAD

04-CC-024-R4.40-LFYT, Contra Costa, CA

Built 1959 ADT: 16,700

ST STEPHENS DRIVE

Unknown

Over: STATE ROUTE 24 & BARTD

04-CC-024-R3.47-ORIN, Contra Costa, CA

Built 1969 ADT: 159,000

INTERSTATE 80

Unknown

Over: CENTRAL AVENUE

04-CC-080-0.22-RCH, Contra Costa, CA

Built 1958 ADT: 28,350

OAK PARK BLVD

Unknown

Over: I 680, N MAIN STREET

04-CC-680-16.88-PLHL, Contra Costa, CA

Built 1982 ADT: 18,000

OAKVALE ROAD

Unknown

Over: INTERSTATE 680

04-CC-680-14.56-WLC, Contra Costa, CA

Built 1997 ADT: 40,000

S680-W24 CONNECTOR

Unknown

Over: YGNACIO VALLEY ROAD

04-CC-680-14.85-WLC, Contra Costa, CA

Built 1994 ADT: 66,100

INTERSTATE 680 SB

Unknown

Over: YGNACIO VALLEY ROAD

04-CC-680-14.85-WLC, Contra Costa, CA

Built 1995 ADT: 66,100

INTERSTATE 680 NB

Unknown

Over: YGNACIO VALLEY ROAD

04-CC-680-14.85-WLC, Contra Costa, CA

Built 1995 ADT: 66,100

INTERSTATE 680

Unknown

Over: PARKSIDE DRIVE

04-CC-680-15.24-WLC, Contra Costa, CA

Built 1960 ADT: 12,800

NORTH MAIN STREET

Unknown

Over: INTERSTATE 680

04-CC-680-15.61-WLC, Contra Costa, CA

Built 1996 ADT: 257,000

TREAT BOULEVARD

Unknown

Over: INTERSTATE 680

04-CC-680-16.40, Contra Costa, CA

Built 1982 ADT: 257,000

INTERSTATE 80

Unknown

Over: PINOLE VALLEY ROAD

04-CC-080-8.51-PIN, Contra Costa, CA

Built 1957 ADT: 19,900

INTERSTATE 80

Unknown

Over: EL PORTAL DRIVE

04-CC-080-5.25, Contra Costa, CA

Built 1956 ADT: 24,500

INTERSTATE 80

Unknown

Over: CARLSON BLVD

04-CC-080-1.00-RCH, Contra Costa, CA

Built 1960 ADT: 14,920

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

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.