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)

OLYMPIC-S680 ON

Fair

Over: LAS TRAMPAS CREEK

04-CC-680-13.72-WLC, Contra Costa, CA

Built 1994 Load: 32.4 t ADT: 10,300

N680-OLYMPIC OFF

Fair

Over: LAS TRAMPAS CREEK

04-CC-680-13.72-WLC, Contra Costa, CA

Built 1996 Load: 32.4 t ADT: 25,000

NB SR 242 ON-RAMP

Fair

Over: CONCORD AVENUE

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

Built 1996 Load: 32.4 t ADT: 5,200

STATE ROUTE 242

Fair

Over: RV STORAGE

04-CC-242-R1.61-CND, Contra Costa, CA

Built 1963 Load: 32.4 t ADT: 80,000

SB SR 242 OFFRAMP

Fair

Over: RV STORAGE

04-CC-242-R1.70-CND, Contra Costa, CA

Built 1996 Load: 32.4 t ADT: 18,300

E80-WILLOW OFF&ON

Fair

Over: RODEO CREEK

04-CC-080-10.71, Contra Costa, CA

Built 1958 Load: 32.4 t ADT: 2,250

INTERSTATE 680

Fair

Over: LAUREL DRIVE

04-CC-680-R7.02-DNVL, Contra Costa, CA

Built 1964 Load: 32.4 t ADT: 192,200

W580-CENTRAL OFF

Fair

Over: CENTRAL AVE

04-CC-580-0.14-RCH, Contra Costa, CA

Built 1991 Load: 32.4 t ADT: 4,300

STATE ROUTE 4

Fair

Over: FRANKLIN EQUIP & PIPE UC

04-CC-004-R7.27, Contra Costa, CA

Built 1967 Load: 32.4 t ADT: 55,000

E4-S242 CONNECTOR

Fair

Over: EBMUD SERVICE ROAD

04-CC-004-R14.45-CND, Contra Costa, CA

Built 1978 Load: 32.4 t ADT: 7,500

W580-BAYVIEW OFF

Fair

Over: NONE

04-CC-580-1.07, Contra Costa, CA

Built 1987 Load: 32.4 t ADT: 3,650

INTERSTATE 80 WB

Fair

Over: CARQUINEZ STRAITS, RR

04-CC-080-13.80-VAL, Contra Costa, CA

Built 2003 Load: 32.4 t ADT: 154,000

WATERFRONT-N680 ON

Fair

Over: MARSH WETLANDS

04-CC-680-24.25, Contra Costa, CA

Built 2006 Load: 32.4 t ADT: 3,000

WB ROUTE 4

Fair

Over: PRIVATE ACCESS ROAD

04-CC-004-R3.87L-MTZ, Contra Costa, CA

Built 2002 Load: 32.4 t ADT: 10,200

STATE ROUTE 4 WB

Fair

Over: SAND CREEK

04-CC-004-M34.40, Contra Costa, CA

Built 2003 Load: 32.4 t ADT: 23,000

STATE ROUTE 4 WB

Fair

Over: CENTURY BLVD

04-CC-004-25.00-ANT, Contra Costa, CA

Built 2013 Load: 32.4 t ADT: 57,000

STATE ROUTE 4 WB

Fair

Over: BART TRACKS,ACCESS ROAD

04-CC-004-R29.69-ANT, Contra Costa, CA

Built 2016 Load: 32.4 t ADT: 47,000

ONRAMP TO SR 4 EB

Fair

Over: DEER CREEK

04-CC-004-R35.51-BTWD, Contra Costa, CA

Built 2018 Load: 32.4 t ADT: 12,000

WATERFRONT RD

Fair

Over: UP RR, BNSF RY, & AMTRAK

0.8 MI E OF I-680, Contra Costa, CA

Built 1978 Load: 32.4 t ADT: 2,409

SYCAMORE VLY RD

Fair

Over: SAN RAMON CREEK

0.5 MI E OF SH 680, Contra Costa, CA

Built 1965 Load: 32.4 t ADT: 28,237

GLENSIDE DR

Fair

Over: LAS TRAMPAS CREEK

0.1 MI E ST MARY'S ROAD, Contra Costa, CA

Built 1963 Load: 32.4 t ADT: 6,025

BAILEY ROAD

Fair

Over: MOUNT DIABLO CREEK

0.2 MI NE CONCORD BLVD, Contra Costa, CA

Built 2003 Load: 32.4 t ADT: 5,858

IMHOFF ROAD

Fair

Over: GRAYSON CREEK

0.8 MI W SOLANO WAY, Contra Costa, CA

Built 1981 Load: 32.4 t ADT: 1,000

PINOLE VLY RD

Fair

Over: PINOLE CREEK

2.0 MI S/E OF I 80, Contra Costa, CA

Built 1996 Load: 32.4 t ADT: 4,000

TASSAJARA ROAD

Fair

Over: TASSAJARA CREEK

1.8 MI N COUNTY LINE, Contra Costa, CA

Built 1995 Load: 32.4 t ADT: 7,539

MORAGA WAY

Fair

Over: W BRANCH SAN LEANDRO CR

0.25 MI NW CANYON RD, Contra Costa, CA

Built 1954 Load: 32.4 t ADT: 10,000

GLENSIDE DR

Fair

Over: LAS TRAMPAS CREEK

0.1 M E ST MARY'S RD, Contra Costa, CA

Built 1980 Load: 32.4 t ADT: 2,000

BOULEVARD WAY

Fair

Over: LAS TRAMPAS CREEK

0.2 MI N OLYMPIC BLVD, Contra Costa, CA

Built 1978 Load: 32.4 t ADT: 4,840

COUNTRY CLUB DR

Fair

Over: SAN LEANDRO CREEK

0.2 MI W CANYON RD, Contra Costa, CA

Built 1999 Load: 32.4 t ADT: 1,000

JOHNSTON ROAD

Fair

Over: TASSAJARA CREEK

0.4 MI E CAMINO TASSAJARA, Contra Costa, CA

Built 1998 Load: 32.4 t ADT: 644

MINNESOTA AVE

Fair

Over: SAND CREEK

0.4 MI N/O DAINTY ROAD, Contra Costa, CA

Built 1992 Load: 32.4 t ADT: 7,400

BOLLINGER CANYON

Fair

Over: MAIN BRANCH ALAMO CREEK

1 MI E CROW CANYON RD, Contra Costa, CA

Built 2006 Load: 32.4 t ADT: 5,000

JAPONICA WAY

Fair

Over: ALAMO CREEK

1/10 MI E. OF N. MONARCH, Contra Costa, CA

Built 2007 Load: 32.4 t ADT: 1,000

CASABLANCA ROAD

Fair

Over: MAIN BRANCH ALAMO CREEK

.05 MI E OF KNOLLS CREEK., Contra Costa, CA

Built 2006 Load: 32.4 t ADT: 1,000

N. GALE RIDGE RD

Fair

Over: WEST BRANCH ALAMO CREEK

0.1 MI W OF DOUGHERTY RD, Contra Costa, CA

Built 2005 Load: 32.4 t ADT: 2,300

WINDEMERE PARKWAY

Fair

Over: CAMINO TASSAJARA

.2 MI W, CAMINO TASSAJARA, Contra Costa, CA

Built 2007 Load: 32.4 t ADT: 2,000

CLIPPER DRIVE

Fair

Over: FRISK CREEK

0.1 MI EAST OF NEWPORT DR, Contra Costa, CA

Built 1987 Load: 32.4 t ADT: 1,500

NEWPORT DRIVE

Fair

Over: KELLOGG CREEK

0.6 MI NORTH OF SR 4, Contra Costa, CA

Built 1987 Load: 32.4 t ADT: 1,500

DOUGHERTY

Fair

Over: LOWER M. BRANCH ALAMO CR

AT BOLLINGER CANYON RD, Contra Costa, CA

Built 2007 Load: 32.4 t ADT: 100

SHADY WILLOW LANE

Fair

Over: SAND CREEK

0.3 MI N SAND CREEK RD, Contra Costa, CA

Built 2007 Load: 32.4 t ADT: 3,700

TSUSHIMA STREET

Fair

Over: REFUGIO CREEK

AT JOHN MUIR PKWY, Contra Costa, CA

Built 2008 Load: 32.4 t ADT: 1,000

LAUREL ROAD

Fair

Over: MARSH CREEK

488 M. E. MAIN ST./SR-4, Contra Costa, CA

Built 1990 Load: 32.4 t ADT: 4,200

PUTNAM STREET

Fair

Over: WEST ANTIOCH CREEK

AT 'G' STREET, Contra Costa, CA

Built 1973 Load: 32.4 t ADT: 4,490

CHURCH LANE

Fair

Over: WILDCAT CREEK

0.1 MI S SAN PABLO AVE, Contra Costa, CA

Built 1973 Load: 32.4 t ADT: 13,320

GIANT HWY

Fair

Over: RHEAM CREEK

0.1 MI S STANTON AVE, Contra Costa, CA

Built 1993 Load: 32.4 t ADT: 4,220

OAK GROVE RD

Fair

Over: PINE CREEK

AT WALNUT AVE, Contra Costa, CA

Built 1974 Load: 32.4 t ADT: 6,600

SUSANA ST

Fair

Over: ARROYO DEL HAMBRE

AT ESTUDILLO ST, Contra Costa, CA

Built 1987 Load: 32.4 t ADT: 1,876

HIGHLAND ROAD

Fair

Over: TASSAJARA CREEK

AT CAMINO TASSAJARA, Contra Costa, CA

Built 1996 Load: 32.4 t ADT: 3,968

ARBOLADO DRIVE

Fair

Over: PINE CREEK

AT OAK GROVE RD, Contra Costa, CA

Built 1974 Load: 32.4 t ADT: 1,100

EL CERRO BLVD

Fair

Over: SAN RAMON CREEK

0.2 MI E DANVILLE BLVD, Contra Costa, CA

Built 1991 Load: 32.4 t ADT: 14,827

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.