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)

INTERSTATE 8 EB

Good

Over: ALL AMER CANAL,SAND HLLS

11-IMP-008-81.69, Imperial, CA

Built 1961 Load: 30.1 t ADT: 7,250

INTERSTATE 8 WB

Good

Over: MOUNTAIN SPRINGS RD

11-IMP-008-R3.05L, Imperial, CA

Built 1963 Load: 30.1 t ADT: 7,105

STATE ROUTE 86 NB

Good

Over: TRIFOLIUM CANAL

11-IMP-086-R34.82, Imperial, CA

Built 1948 Load: 30.8 t ADT: 7,350

INTERSTATE 8 EB

Good

Over: BOULDER CREEK

11-IMP-008-R0.96R, Imperial, CA

Built 1964 Load: 30.8 t ADT: 5,423

INTERSTATE 8 WB

Good

Over: BOULDER CREEK

11-IMP-008-R0.87L, Imperial, CA

Built 1963 Load: 31.8 t ADT: 5,423

INTERSTATE 8 WB

Good

Over: SOUTH FORK COYOTE WASH

11-IMP-008-R14.46, Imperial, CA

Built 1968 Load: 32.1 t ADT: 6,200

INTERSTATE 8 EB

Good

Over: SOUTH FORK COYOTE WASH

11-IMP-008-R14.44, Imperial, CA

Built 1968 Load: 32.1 t ADT: 6,200

STATE ROUTE 86 NB

Good

Over: CENTRAL MAIN CANAL

11-IMP-086-17.86, Imperial, CA

Built 1982 Load: 32.4 t ADT: 7,700

STATE ROUTE 115

Good

Over: ALAMO RIVER

11-IMP-115-L10.31-HOLT, Imperial, CA

Built 1955 Load: 32.4 t ADT: 5,400

STATE ROUTE 86 SB

Good

Over: SAN FELIPE CREEK

11-IMP-086-43.30, Imperial, CA

Built 1987 Load: 32.4 t ADT: 6,150

STATE ROUTE 86 SB

Good

Over: TRIFOLIUM/WESTSIDE MAIN

11-IMP-086-R24.79, Imperial, CA

Built 1997 Load: 32.4 t ADT: 5,700

STATE ROUTE 86 NB

Good

Over: TRIFOLIUM/WESTSIDE MAIN

11-IMP-086-R24.77, Imperial, CA

Built 1962 Load: 32.4 t ADT: 5,700

STATE ROUTE 86 SB

Good

Over: TAMARACK (WESTSIDE MAIN)

11-IMP-086-R22.93, Imperial, CA

Built 1998 Load: 32.4 t ADT: 5,700

STATE ROUTE 86 NB

Good

Over: TAMARACK (WESTSIDE MAIN)

11-IMP-086-R22.96, Imperial, CA

Built 1962 Load: 32.4 t ADT: 5,700

STATE ROUTE 86 NB

Good

Over: LONE TREE WASH

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

Built 1947 Load: 32.4 t ADT: 7,350

STATE ROUTE 86 NB

Good

Over: ZENAS DITCH

11-IMP-086-55.50, Imperial, CA

Built 1959 Load: 32.4 t ADT: 7,550

STATE ROUTE 86 SB

Good

Over: BILOXI DITCH

11-IMP-086-56.36, Imperial, CA

Built 1989 Load: 32.4 t ADT: 7,300

STATE ROUTE 86 SB

Good

Over: IBERIA DITCH

11-IMP-086-56.60, Imperial, CA

Built 1989 Load: 32.4 t ADT: 7,300

STATE ROUTE 86 SB

Good

Over: BERSA DITCH

11-IMP-086-60.15, Imperial, CA

Built 1989 Load: 32.4 t ADT: 7,300

STATE ROUTE 86 SB

Good

Over: TESLA WASH

11-IMP-086-60.47, Imperial, CA

Built 1989 Load: 32.4 t ADT: 7,300

STATE ROUTE 86 SB

Good

Over: VALERIE WASH

11-IMP-086-60.57, Imperial, CA

Built 1989 Load: 32.4 t ADT: 7,300

STATE ROUTE 86 SB

Good

Over: VIRGO WASH

11-IMP-086-60.90, Imperial, CA

Built 1989 Load: 32.4 t ADT: 7,300

STATE ROUTE 86 SB

Good

Over: ASTER DITCH

11-IMP-086-61.24, Imperial, CA

Built 1990 Load: 32.4 t ADT: 7,300

STATE ROUTE 86 SB

Good

Over: VERBENA DITCH

11-IMP-086-61.37, Imperial, CA

Built 1990 Load: 32.4 t ADT: 7,300

STATE ROUTE 86 SB

Good

Over: IBYCUS DITCH

11-IMP-086-61.55, Imperial, CA

Built 1990 Load: 32.4 t ADT: 7,300

STATE ROUTE 86 SB

Good

Over: TALOFA DITCH

11-IMP-086-61.80, Imperial, CA

Built 1990 Load: 32.4 t ADT: 7,300

STATE ROUTE 86 SB

Good

Over: TONALEE DITCH

11-IMP-086-62.20, Imperial, CA

Built 1990 Load: 32.4 t ADT: 7,300

STATE ROUTE 86 SB

Good

Over: DAROCA DITCH

11-IMP-086-62.31, Imperial, CA

Built 1990 Load: 32.4 t ADT: 7,300

STATE ROUTE 86 SB

Good

Over: BEXAR DITCH

11-IMP-086-62.65, Imperial, CA

Built 1990 Load: 32.4 t ADT: 7,300

STATE ROUTE 86 SB

Good

Over: TORTIF DITCH

11-IMP-086-62.98, Imperial, CA

Built 1990 Load: 32.4 t ADT: 7,300

STATE ROUTE 86 SB

Good

Over: FOLIUS DITCH

11-IMP-086-63.13, Imperial, CA

Built 1990 Load: 32.4 t ADT: 7,100

STATE ROUTE 86 SB

Good

Over: FLORIS DITCH

11-IMP-086-63.21, Imperial, CA

Built 1990 Load: 32.4 t ADT: 7,100

STATE ROUTE 86 SB

Good

Over: ENCILIA DITCH

11-IMP-086-63.49, Imperial, CA

Built 1990 Load: 32.4 t ADT: 7,300

STATE ROUTE 86 SB

Good

Over: FARINOSA DITCH

11-IMP-086-63.79, Imperial, CA

Built 1990 Load: 32.4 t ADT: 7,200

STATE ROUTE 86 SB

Good

Over: CALYX DITCH

11-IMP-086-64.33, Imperial, CA

Built 1990 Load: 32.4 t ADT: 7,200

STATE ROUTE 86 SB

Good

Over: PAROSA DITCH

11-IMP-086-65.00, Imperial, CA

Built 1990 Load: 32.4 t ADT: 7,200

STATE ROUTE 86 SB

Good

Over: ZANTHE DITCH

11-IMP-086-65.22, Imperial, CA

Built 1990 Load: 32.4 t ADT: 7,200

STATE ROUTE 86 SB

Good

Over: SHORELINE DITCH

11-IMP-086-65.68, Imperial, CA

Built 1989 Load: 32.4 t ADT: 7,200

INTERSTATE 8

Good

Over: SAND HILLS DITCH

11-IMP-008-R83.71, Imperial, CA

Built 1970 Load: 32.4 t ADT: 14,500

INTERSTATE 8

Good

Over: OGILBY DITCH

11-IMP-008-R83.99, Imperial, CA

Built 1970 Load: 32.4 t ADT: 15,100

INTERSTATE 8

Good

Over: PACK DITCH

11-IMP-008-R84.40, Imperial, CA

Built 1970 Load: 32.4 t ADT: 15,100

INTERSTATE 8

Good

Over: GUSTO DITCH

11-IMP-008-R84.84, Imperial, CA

Built 1970 Load: 32.4 t ADT: 15,100

INTERSTATE 8

Good

Over: CERTO DITCH

11-IMP-008-R85.16, Imperial, CA

Built 1970 Load: 32.4 t ADT: 15,100

INTERSTATE 8

Good

Over: SHACK DITCH

11-IMP-008-R85.46, Imperial, CA

Built 1970 Load: 32.4 t ADT: 15,100

INTERSTATE 8

Good

Over: JACKSON GULCH

11-IMP-008-R85.80, Imperial, CA

Built 1970 Load: 32.4 t ADT: 15,100

INTERSTATE 8

Good

Over: BOTTLE DITCH

11-IMP-008-R86.16, Imperial, CA

Built 1970 Load: 32.4 t ADT: 15,100

INTERSTATE 8

Good

Over: BERM DITCH

11-IMP-008-R86.66, Imperial, CA

Built 1970 Load: 32.4 t ADT: 15,100

INTERSTATE 8

Good

Over: ACME DITCH

11-IMP-008-R87.11, Imperial, CA

Built 1970 Load: 32.4 t ADT: 15,100

INTERSTATE 8

Good

Over: PLATE DITCH

11-IMP-008-R87.58, Imperial, CA

Built 1970 Load: 32.4 t ADT: 15,100

INTERSTATE 8

Good

Over: TRIANGLE DITCH

11-IMP-008-R88.12, Imperial, CA

Built 1970 Load: 32.4 t ADT: 15,100

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