Imperial County, CA

448 public highway bridges

Imperial County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Imperial County, California contains 448 public highway bridges. Roughly 41.5% are rated “Good,” 37.5% “Fair,” and 8.7% “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.

448
Total Bridges
41.5%
Good
37.5%
Fair
8.7%
Poor Condition

Condition Distribution

Good
41.5% (186)
Fair
37.5% (168)
Poor
8.7% (39)

All Bridges (448)

STATE ROUTE 78 WB

Unknown

Over: KALIN RD, WESTSIDE MAIN

11-IMP-078-R9.83, Imperial, CA

Built 2012 ADT: 700

STATE ROUTE 78 EB

Unknown

Over: KALIN RD, WESTSIDE MAIN

11-IMP-078-R9.83, Imperial, CA

Built 2012 ADT: 700

DOGWOOD ROAD

Unknown

Over: INTERSTATE 8

11-IMP-008-R39.00-ECN, Imperial, CA

Built 2017 ADT: 34,500

IMPERIAL AVENUE

Unknown

Over: INTERSTATE 8

11-IMP-008-R36.97-ECN, Imperial, CA

Built 2022 ADT: 194,000

UP RR & AMTRAK

Unknown

Over: PICACHO ROAD

150FT NE/O QUECHAN RD, Imperial, CA

Built 1955 ADT: 4,400

EVAN HEWES HWY

Fair

Over: AWATOBE DITCH

2.36 MI E/O IMPERIAL HWY, Imperial, CA

Built 1932 Load: 3.6 t ADT: 615

SCARONI RD

Fair

Over: CENTRAL MAIN CANAL

0.5 MI N/O COLE RD, Imperial, CA

Built 1935 Load: 4.9 t ADT: 300

EVAN HEWES HWY

Fair

Over: HAVELOCK DITCH

4.5 MI E/O IMPERIAL HWY, Imperial, CA

Built 1932 Load: 6.2 t ADT: 372

EVAN HEWES HWY

Fair

Over: ALVIRA DITCH

4.8 MI E/O IMPERIAL HWY, Imperial, CA

Built 1932 Load: 6.8 t ADT: 372

MEHRING RD

Fair

Over: MOHAVE LATERAL CANAL

1.9 MI E/O YORK RD, Imperial, CA

Built 1950 Load: 7.1 t ADT: 250

YORK RD

Fair

Over: RESERVATION MAIN DRAIN

0.2 MI N/O MEHRING RD, Imperial, CA

Built 1950 Load: 10.0 t ADT: 10

State Route 186

Fair

Over: All American Canal

6 miles NW of Yuma, Ari, Imperial, CA

Built 1938 Load: 16.4 t ADT: 13,200

EVAN HEWES HWY

Fair

Over: LEE DITCH

1.57 MI E/O IMPERIAL HWY, Imperial, CA

Built 1932 Load: 18.1 t ADT: 272

EVAN HEWES HWY

Fair

Over: QUAKER WASH

1.7 MI E/O IMPERIAL HWY, Imperial, CA

Built 1932 Load: 18.1 t ADT: 372

EVAN HEWES HWY

Fair

Over: BERENDO DITCH

2.1 MI E OF IMPERIAL HWY, Imperial, CA

Built 1932 Load: 18.1 t ADT: 372

EVAN HEWES HWY

Fair

Over: RIMBO DITCH

5.8 MI E/O IMPERIAL HWY, Imperial, CA

Built 1932 Load: 18.1 t ADT: 372

ARAZ ROAD (CR S24)

Fair

Over: WINDMILL WASH

0.28 MI N/O I-8 EXIT 166, Imperial, CA

Built 1932 Load: 18.1 t ADT: 510

O&M Canal Roads

Fair

Over: All-American Canal

11 miles NE of Yuma, Imperial, CA

Built 1935 Load: 18.8 t ADT: 50

O&M Service Roads

Fair

Over: All-American Canal

8.3 miles north of Yuma, Imperial, CA

Built 1960 Load: 18.8 t ADT: 50

GENTRY RD

Fair

Over: VAIL CANAL

1.5 MI S/O EDDINS RD, Imperial, CA

Built 1936 Load: 19.8 t ADT: 1,360

FITES RD

Fair

Over: WESTSIDE MAIN CANAL

20 FT S/O CARTER RD, Imperial, CA

Built 1940 Load: 19.8 t ADT: 80

Service Road

Fair

Over: Picacho Wash Overchute

7 mi north of Yuma, AZ, Imperial, CA

Built 1970 Load: 20.1 t ADT: 50

SWARTHOUT RD

Fair

Over: WESTSIDE MAIN CANAL

0.2 MI S/O EDGAR RD, Imperial, CA

Built 1950 Load: 20.1 t ADT: 66

4TH STREET

Fair

Over: PALO VERDE LAGOON

300 FT E/O SR 78, Imperial, CA

Built 1950 Load: 20.1 t ADT: 800

PELLETT RD

Fair

Over: WESTSIDE MAIN CANAL

1.0 MI W/O 58C0179, Imperial, CA

Built 1950 Load: 20.4 t ADT: 60

KEFFER RD

Fair

Over: ALAMO RIVER

0.5 MI E/O SR-7, Imperial, CA

Built 1965 Load: 20.7 t ADT: 500

NELSON PIT RD

Fair

Over: EAST HIGHLINE CANAL

1.2 MI E/O MILLER RD, Imperial, CA

Built 1950 Load: 20.7 t ADT: 100

MELOLAND ROAD

Fair

Over: CENTRAL DRAIN

1.9 MI N/O EVAN HEWES HWY, Imperial, CA

Built 1940 Load: 20.7 t ADT: 626

STATE ROUTE 115

Fair

Over: HOLTVILLE MAIN DRAIN

11-IMP-115-18.15, Imperial, CA

Built 1953 Load: 21.1 t ADT: 2,350

STATE ROUTE 86 NB

Fair

Over: TESLA WASH

11-IMP-086-60.47, Imperial, CA

Built 1952 Load: 21.7 t ADT: 6,900

KEYSTONE RD

Fair

Over: WESTSIDE MAIN CANAL

0.3 MI W/O FORRESTER RD, Imperial, CA

Built 1950 Load: 22.0 t ADT: 25

WIEMAN RD

Fair

Over: WESTSIDE MAIN CANAL

2.3 MI S/O SR86 (HOSKINS), Imperial, CA

Built 1940 Load: 22.0 t ADT: 300

ANDRE RD

Fair

Over: WESTSIDE MAIN CANAL

0.6 MI W/O PELLETT RD, Imperial, CA

Built 1940 Load: 22.0 t ADT: 50

LARSEN ROAD

Fair

Over: CENTRAL MAIN CANAL

30 FT E/O AUSTIN RD, Imperial, CA

Built 1950 Load: 22.0 t ADT: 570

HARRIS ROAD

Fair

Over: CENTRAL MAIN CANAL

30 FT E/O AUSTIN RD, Imperial, CA

Built 1950 Load: 22.0 t ADT: 120

ERSKINE RD

Fair

Over: WESTSIDE MAIN CANAL

0.75 MI N/O WORTHINGTON, Imperial, CA

Built 1950 Load: 22.4 t ADT: 109

Picacho Road

Fair

Over: All American Canal

7m north of Yuma, AZ, Imperial, CA

Built 1936 Load: 22.5 t ADT: 50

MUDD RD

Fair

Over: WESTSIDE MAIN CANAL

0.3 MI W/O FORRESTER RD, Imperial, CA

Built 1950 Load: 22.7 t ADT: 50

LYONS RD

Fair

Over: WESTSIDE MAIN CANAL

0.7 MI W/O DREW RD, Imperial, CA

Built 1940 Load: 23.0 t ADT: 100

URGUHART RD

Fair

Over: WESTSIDE MAIN CANAL

40 FT S/O CARTER, Imperial, CA

Built 1950 Load: 23.7 t ADT: 80

LUGO ROAD

Fair

Over: PALO VERDE LAGOON

0.32 MI E/O SR 78, Imperial, CA

Built 1950 Load: 24.0 t ADT: 300

STATE ROUTE 111

Fair

Over: CEDAR WASH

11-IMP-111-48.85, Imperial, CA

Built 1950 Load: 24.3 t ADT: 3,600

ST RTE 98, BOWKER

Fair

Over: ALL AMERICAN CANAL

11-IMP-098-34.43, Imperial, CA

Built 1938 Load: 24.3 t ADT: 15,343

IN-KO-PAH RD

Fair

Over: BOULDER CREEK

0.44 MI E/O SD CO LINE, Imperial, CA

Built 1932 Load: 24.3 t ADT: 138

EVAN HEWES HWY

Fair

Over: OCOTILLO WASH

0.4 MI E/O IMPERIAL HWY, Imperial, CA

Built 1932 Load: 24.3 t ADT: 272

TITSWORTH RD

Fair

Over: EAST HIGHLINE CANAL

1.5 MI E/O BUTTERS RD, Imperial, CA

Built 1950 Load: 24.3 t ADT: 50

FLOWING WELLS ROAD

Fair

Over: EAST HIGHLINE CANAL

4.0 MI E/O SR 111, Imperial, CA

Built 1950 Load: 24.3 t ADT: 50

NECKEL ROAD

Fair

Over: CENTRAL MAIN CANAL

50 FT E/O AUSTIN RD, Imperial, CA

Built 1972 Load: 24.3 t ADT: 630

STATE ROUTE 111

Fair

Over: SY WASH

11-IMP-111-49.20, Imperial, CA

Built 1950 Load: 25.3 t ADT: 3,600

STATE ROUTE 86 NB

Fair

Over: AMBIG DITCH

11-IMP-086-64.75, Imperial, CA

Built 1981 Load: 25.9 t ADT: 7,200

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.