Imperial County, CA

448 public highway bridges

Imperial County Bridge Snapshot

Imperial County, California contains 448 public highway bridges in the FHWA National Bridge Inventory. Roughly 41.5% are rated “Good,” 37.5% “Fair,” 8.7% “Poor,” and 8.7% 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.

448

Total Bridges

41.5%

Good

8.7%

Poor

8.7%

Structurally Deficient

Condition Distribution

Good

41.5% (186)

Fair

37.5% (168)

Poor

8.7% (39)

SD

8.7% (39)

All Bridges (448)

Sort:

STATE ROUTE 86 NB

Over: SURPRISE DITCH

11-IMP-086-54.00, Imperial, CA

Built 1981 Load: 25.9 t ADT: 7,550

FISHER ROAD

Over: RESERVATION MAIN DRAIN

0.4 MI N/O ROSS RD, Imperial, CA

Built 1940 Load: 26.6 t ADT: 51

O&M Service Roads

Over: All-American Canal

13.4 miles NE of Yuma, Imperial, CA

Built 1960 Load: 26.8 t ADT: 50

O&M Service Road

Over: Mission Wash Overchute

6 miles (9.65 KM) NW of Y, Imperial, CA

Built 1935 Load: 26.9 t ADT: 80

STATE ROUTE 86 NB

Over: ANZA DITCH

11-IMP-086-57.81, Imperial, CA

Built 1981 Load: 26.9 t ADT: 7,300

STATE ROUTE 86 NB

Over: TALOFA DITCH

11-IMP-086-61.80, Imperial, CA

Built 1979 Load: 26.9 t ADT: 7,300

STATE ROUTE 111

Over: OTEN WASH

11-IMP-111-53.07, Imperial, CA

Built 1950 Load: 26.9 t ADT: 3,600

STATE ROUTE 111 SB

Over: CENTRAL MAIN CANAL

11-IMP-111-R2.70, Imperial, CA

Built 1965 Load: 27.2 t ADT: 17,000

STATE ROUTE 111 NB

Over: CENTRAL MAIN CANAL

11-IMP-111-R2.70, Imperial, CA

Built 1965 Load: 27.2 t ADT: 17,000

STATE ROUTE 111

Over: "X" DRAIN

11-IMP-111-40.82, Imperial, CA

Built 1950 Load: 27.9 t ADT: 3,650

STATE ROUTE 111

Over: MARSHY WASH

11-IMP-111-41.10, Imperial, CA

Built 1950 Load: 27.9 t ADT: 3,650

STATE ROUTE 86 NB

Over: GRAVEL WASH

11-IMP-086-59.77, Imperial, CA

Built 1981 Load: 28.2 t ADT: 7,300

STATE ROUTE 111

Over: REED WASH

11-IMP-111-40.90, Imperial, CA

Built 1950 Load: 28.2 t ADT: 3,650

STATE ROUTE 86 NB

Over: SAN FELIPE CREEK

11-IMP-086-43.30, Imperial, CA

Built 1947 Load: 28.5 t ADT: 6,150

Canal Service Road

Over: 807 Wash Overchute

6 mi north of Yuma, AZ, Imperial, CA

Built 1936 Load: 29.1 t ADT: 50

HUFF RD

Over: WESTSIDE MAIN CANAL

0.5 MI N/O WORTHINGTON RD, Imperial, CA

Built 1950 Load: 29.2 t ADT: 743

Left O&M Canal Rd

Over: 120 Wash overchute

13 miles NE of Yuma, Imperial, CA

Built 1935 Load: 29.5 t ADT: 50

STATE ROUTE 86 SB

Over: SOUTH SAND DUNE WASH

11-IMP-086-45.69, Imperial, CA

Built 1987 Load: 29.5 t ADT: 5,600

YOURMAN RD

Over: CENTRAL MAIN CANAL

0.5 MI N/O OF COLE RD, Imperial, CA

Built 1965 Load: 29.5 t ADT: 300

STATE ROUTE 86 NB

Over: ARROYO SALADA DITCH

11-IMP-086-54.70, Imperial, CA

Built 1981 Load: 29.8 t ADT: 7,550

PEREZ RD

Over: RESERVATION MAIN DRAIN

0.3 MI N/O ROSS RD, Imperial, CA

Built 1987 Load: 29.8 t ADT: 500

STATE ROUTE 86 NB

Over: PALM WASH

11-IMP-086-58.23, Imperial, CA

Built 1981 Load: 30.1 t ADT: 7,300

CLARK RD

Over: NEW RIVER

1 MI N/O SR98, Imperial, CA

Built 1925 Load: 30.1 t ADT: 1,000

CARR RD

Over: ASH CANAL

1.8 MI E/O BARBARA WORTH, Imperial, CA

Built 1940 Load: 30.5 t ADT: 205

WINTERHAVEN DR

Over: COLORADO RIVER

11-IMP-008U-96.87, Imperial, CA

Built 1956 Load: 31.1 t ADT: 12,600

WAHL RD

Over: CENTRAL MAIN CANAL

50 FT E/O AUSTIN RD, Imperial, CA

Built 1940 Load: 31.1 t ADT: 1,000

ORCHARD RD

Over: ALAMO RIVER

0.11 MI S/O 4TH ST, Imperial, CA

Built 1968 Load: 31.1 t ADT: 1,825

INTERSTATE 8 WB

Over: UP RR

11-IMP-008-R38.48-ECN, Imperial, CA

Built 1967 Load: 31.4 t ADT: 17,250

INTERSTATE 8 EB

Over: UP RR

11-IMP-008-R38.48-ECN, Imperial, CA

Built 1967 Load: 31.4 t ADT: 17,250

MCDANIEL RD

Over: RESERVATION MAIN DRAIN

0.4 MI N/O ROSS RD, Imperial, CA

Built 1985 Load: 31.8 t ADT: 80

STATE ROUTE 86 SB

Over: ARROYO SALADA DITCH

11-IMP-086-54.70, Imperial, CA

Built 1989 Load: 32.4 t ADT: 7,550

STATE ROUTE 86 SB

Over: TULE WASH

11-IMP-086-53.07, Imperial, CA

Built 1989 Load: 32.4 t ADT: 5,600

STATE ROUTE 86 SB

Over: CAMPBELL WASH

11-IMP-086-51.88, Imperial, CA

Built 1989 Load: 32.4 t ADT: 5,600

STATE ROUTE 86 SB

Over: DEEP WASH

11-IMP-086-R35.16, Imperial, CA

Built 1997 Load: 32.4 t ADT: 7,350

STATE ROUTE 86 SB

Over: LONE TREE WASH

11-IMP-086-R37.23, Imperial, CA

Built 1997 Load: 32.4 t ADT: 7,350

STATE ROUTE 86 SB

Over: WILLOW WASH

11-IMP-086-R39.01, Imperial, CA

Built 1997 Load: 32.4 t ADT: 7,350

STATE ROUTE 86 SB

Over: ALFALFA DITCH

11-IMP-086-R40.04, Imperial, CA

Built 1997 Load: 32.4 t ADT: 6,150

STATE ROUTE 86 SB

Over: LUPIN WASH

11-IMP-086-50.84, Imperial, CA

Built 1989 Load: 32.4 t ADT: 5,600

STATE ROUTE 86 SB

Over: PALM WASH

11-IMP-086-58.24, Imperial, CA

Built 1989 Load: 32.4 t ADT: 7,300

STATE ROUTE 86 SB

Over: CORAL WASH

11-IMP-086-59.18, Imperial, CA

Built 1989 Load: 32.4 t ADT: 7,300

STATE ROUTE 86 SB

Over: GRAVEL WASH

11-IMP-086-59.77, Imperial, CA

Built 1989 Load: 32.4 t ADT: 7,300

STATE ROUTE 86 SB

Over: ELECTRA DITCH

11-IMP-086-61.70, Imperial, CA

Built 1990 Load: 32.4 t ADT: 7,300

STATE ROUTE 86 SB

Over: INCIENSO DITCH

11-IMP-086-63.34, Imperial, CA

Built 1990 Load: 32.4 t ADT: 7,300

STATE ROUTE 86 SB

Over: GODETIA DITCH

11-IMP-086-64.10, Imperial, CA

Built 1990 Load: 32.4 t ADT: 7,200

STATE ROUTE 86 SB

Over: MATIS DITCH

11-IMP-086-64.63, Imperial, CA

Built 1990 Load: 32.4 t ADT: 7,200

STATE ROUTE 86 SB

Over: AMBIG DITCH

11-IMP-086-64.75, Imperial, CA

Built 1990 Load: 32.4 t ADT: 7,200

STATE ROUTE 86 SB

Over: ROMNEY DITCH

11-IMP-086-64.83, Imperial, CA

Built 1990 Load: 32.4 t ADT: 7,200

STATE ROUTE 86 SB

Over: COOLIDGE SPRINGS DITCH

11-IMP-086-65.35, Imperial, CA

Built 1990 Load: 32.4 t ADT: 7,200

STATE ROUTE 111

Over: ALKY WASH

11-IMP-111-50.79, Imperial, CA

Built 1950 Load: 32.4 t ADT: 3,600

STATE ROUTE 111

Over: PIKE WASH

11-IMP-111-41.56, Imperial, CA

Built 1950 Load: 32.4 t ADT: 3,650

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

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

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 5, 2026