Contra Costa County, CA

686 public highway bridges

Contra Costa County Bridge Snapshot

Contra Costa County, California contains 686 public highway bridges in the FHWA National Bridge Inventory. Roughly 29.7% are rated “Good,” 26.1% “Fair,” 5.5% “Poor,” and 5.5% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in CA are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

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

686
Total Bridges
29.7%
Good
5.5%
Poor
5.5%
Structurally Deficient

Condition Distribution

Good
29.7% (204)
Fair
26.1% (179)
Poor
5.5% (38)
SD
5.5% (38)

All Bridges (686)

NICHOLS RD

Fair

Over: CONTRA COSTA CANAL

0.35 MI S OF PORT CHICAGO, Contra Costa, CA

Built 1945 Load: 23.7 t ADT: 75

INTERSTATE 680

Fair

Over: SAN RAMON CREEK

04-CC-680-R7.43-DNVL, Contra Costa, CA

Built 1964 Load: 24.0 t ADT: 192,200

PINOLE VALLEY RD

Fair

Over: PINOLE CREEK

1.2 MI SE OF I-80, Contra Costa, CA

Built 1966 Load: 24.0 t ADT: 19,900

I80,JACUZZI,PIERCE

Fair

Over: CERRITO CREEK

04-CC-080-0.01-RCH, Contra Costa, CA

Built 1936 Load: 24.3 t ADT: 179,000

STATE ROUTE 4

Fair

Over: BNSF RY

04-CC-004-R9.10-MTZ, Contra Costa, CA

Built 1938 Load: 24.3 t ADT: 62,000

YGNACIO VALLEY RD

Fair

Over: GALINDO CREEK

0.05 MI W ALBERTA WY, Contra Costa, CA

Built 1954 Load: 24.3 t ADT: 19,000

KIRKER PASS RD

Fair

Over: MOUNT DIABLO CREEK

0.2 MI N CLAYTON RD, Contra Costa, CA

Built 1967 Load: 24.3 t ADT: 19,000

VANDERSLICE AVE

Fair

Over: UNNAMED CREEK

0.2 MI N RUDGEAR RD, Contra Costa, CA

Built 1950 Load: 24.3 t ADT: 400

PERADA DR

Fair

Over: PINE CREEK

0.1 MI E CITRUS AVE, Contra Costa, CA

Built 1958 Load: 24.3 t ADT: 1,100

RISDON ROAD

Fair

Over: SDM CHANNEL

0.25 MI SW OAK GROVE, Contra Costa, CA

Built 1970 Load: 24.3 t ADT: 450

CLAUDIA DR

Fair

Over: HOLBROOK CHANNEL

0.1 MI N HOLBROOK, Contra Costa, CA

Built 1970 Load: 24.3 t ADT: 200

HILLCREST AVE

Fair

Over: GILLIPPI GULCH

0.2 MI N OF E 18TH ST, Contra Costa, CA

Built 1958 Load: 24.3 t ADT: 4,000

BOYD RD

Fair

Over: E. FORK GRAYSON CREEK

0.3 MI W CONTRA COSTA BL, Contra Costa, CA

Built 1954 Load: 24.3 t ADT: 7,400

SAN MIGUEL ROAD

Fair

Over: PINE CREEK

0.2 MI NW TREAT BLVD, Contra Costa, CA

Built 1965 Load: 24.3 t ADT: 2,944

TREAT BLVD

Fair

Over: GALINDO CREEK

0.3 MI S CLAYTON RD, Contra Costa, CA

Built 1968 Load: 24.3 t ADT: 28,708

HAWTHORNE DR

Fair

Over: RODEO CREEK

0.04 MI W VAQUEROS AVE, Contra Costa, CA

Built 1959 Load: 24.3 t ADT: 1,237

LA HONDA RD

Fair

Over: SAN PABLO CREEK

0.1 MI N SAN PABLO DAM RD, Contra Costa, CA

Built 1949 Load: 24.3 t ADT: 552

DAINTY ROAD

Fair

Over: MARSH CREEK

800' E MINNESOTA AVE, Contra Costa, CA

Built 1964 Load: 24.3 t ADT: 4,200

TUNBRIDGE RD

Fair

Over: SYCAMORE CREEK

AT SYCAMORE VALLEY RD, Contra Costa, CA

Built 1970 Load: 24.3 t ADT: 400

COTTONWOOD DRIVE

Fair

Over: GRAYSON CREEK

0.1 MI W CONTRA COSTA BL, Contra Costa, CA

Built 1970 Load: 24.3 t ADT: 2,000

PITTSB-ANTIOCH HWY

Fair

Over: KIRKER CREEK

0.6 MI E OF HARBOR ST, Contra Costa, CA

Built 1950 Load: 24.3 t ADT: 10,610

NEWELL AVE

Fair

Over: TICE CREEK

200 FT W. OF S. MAIN ST, Contra Costa, CA

Built 1962 Load: 24.3 t ADT: 17,100

WARD ST

Fair

Over: ARROYO DEL HAMBRE

AT ESTUDILLO ST, Contra Costa, CA

Built 1958 Load: 24.9 t ADT: 3,300

WATERFRONT RD

Fair

Over: PACHECO SLOUGH

0.3 MI WEST SOLANO WAY, Contra Costa, CA

Built 1948 Load: 25.3 t ADT: 2,409

BALFOUR RD.

Fair

Over: MARSH CREEK

1.1 MI WEST OF SR 4, Contra Costa, CA

Built 1996 Load: 25.3 t ADT: 10,600

BALFOUR RD.

Fair

Over: MARSH CREEK

1.1 MI WEST OF SR 4, Contra Costa, CA

Built 1996 Load: 25.6 t ADT: 10,600

RELIEZ STATION RD

Fair

Over: LAS TRAMPAS CREEK

0.1 MI N OLYMPIC BLVD, Contra Costa, CA

Built 1937 Load: 25.6 t ADT: 900

CLIFTON COURT ROAD

Fair

Over: ITALIAN SLOUGH

0.5 MI E BYRON HIGHWAY, Contra Costa, CA

Built 1950 Load: 26.6 t ADT: 100

STATE ROUTE 4

Fair

Over: KELLOGG CREEK

04-CC-004-45.56, Contra Costa, CA

Built 1990 Load: 26.9 t ADT: 18,900

APPIAN WAY

Fair

Over: SAN PABLO CREEK

AT SAN PABLO DAM ROAD, Contra Costa, CA

Built 1938 Load: 27.2 t ADT: 11,492

CANAL RD

Fair

Over: CONTRA COSTA CANAL

0.2 MI E BAILEY RD, Contra Costa, CA

Built 1969 Load: 27.9 t ADT: 10,900

CREEKSIDE DR

Fair

Over: SAN RAMON CREEK

0.4 MI E OF S MAIN ST, Contra Costa, CA

Built 1959 Load: 28.8 t ADT: 2,100

PINOLE VALLEY RD

Fair

Over: PINOLE CREEK

0.3 MI SOUTH OF I-80, Contra Costa, CA

Built 1936 Load: 28.8 t ADT: 14,000

PACHECO BLVD

Fair

Over: GRAYSON CREEK

0.2 MI N CENTER AVE, Contra Costa, CA

Built 1975 Load: 29.2 t ADT: 17,285

I 580 EB

Fair

Over: SCOFIELD AVENUE

04-CC-580-5.83-RCH, Contra Costa, CA

Built 1956 Load: 29.5 t ADT: 34,000

CANAL RD

Fair

Over: CONTRA COSTA CANAL

0.15 MI NW BAILEY RD, Contra Costa, CA

Built 1969 Load: 29.5 t ADT: 3,010

TREAT BLVD

Fair

Over: WALNUT CREEK

0.5 MI EAST OF OAK RD, Contra Costa, CA

Built 1970 Load: 29.5 t ADT: 36,800

BROWN ST

Fair

Over: ARROYO DEL HAMBRE

0.1 MI W PINE ST, Contra Costa, CA

Built 1929 Load: 29.5 t ADT: 3,000

ELINORA DRIVE

Fair

Over: GRAYSON CREEK

LESLIE DRIVE, Contra Costa, CA

Built 1958 Load: 30.1 t ADT: 3,400

PLEASANT HILL RD

Fair

Over: LAS TRAMPAS CREEK

AT OLYMPIC BLVD, Contra Costa, CA

Built 1967 Load: 30.5 t ADT: 15,780

RED WILLOW RD

Fair

Over: WEST BRANCH ALAMO CREEK

0.1 MI SE DOUGHERTY RD, Contra Costa, CA

Built 1990 Load: 30.8 t ADT: 400

NORTH GATE ROAD

Fair

Over: PINE CREEK

AT CASTLE ROCK ROAD, Contra Costa, CA

Built 1970 Load: 31.1 t ADT: 3,500

G ST

Fair

Over: UP RR

0.4 MI N/O SR4 INTCH, Contra Costa, CA

Built 1967 Load: 31.4 t ADT: 6,100

E4-N160 CONNECTOR

Fair

Over: UP RR

04-CC-160-0.43, Contra Costa, CA

Built 1971 Load: 31.8 t ADT: 11,950

STATE ROUTE 4

Fair

Over: KENDALL CREEK OVERFLOW

04-CC-004-45.84, Contra Costa, CA

Built 1990 Load: 32.4 t ADT: 18,900

STATE ROUTE 4 WB

Fair

Over: RODEO CREEK

04-CC-004-R1.90L, Contra Costa, CA

Built 2001 Load: 32.4 t ADT: 20,250

INTERSTATE 680

Fair

Over: SAN RAMON CREEK

04-CC-680-R4.46-DNVL, Contra Costa, CA

Built 1966 Load: 32.4 t ADT: 176,400

INTERSTATE 80

Fair

Over: RICHMOND GREENWAY TRAIL

04-CC-080-2.53-RCH, Contra Costa, CA

Built 1954 Load: 32.4 t ADT: 179,000

STATE ROUTE 580

Fair

Over: RUST DRAIN

04-CC-580-0.72-RCH, Contra Costa, CA

Built 1991 Load: 32.4 t ADT: 84,500

I 580

Fair

Over: MARINE STREET

04-CC-580-R5.43-RCH, Contra Costa, CA

Built 1990 Load: 32.4 t ADT: 68,000

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

Related

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial