Shasta County, CA

500 public highway bridges

Shasta County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Shasta County, California contains 500 public highway bridges. Roughly 41.2% are rated “Good,” 44.6% “Fair,” and 2% “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.

500

Total Bridges

41.2%

Good

44.6%

Fair

2%

Poor Condition

Condition Distribution

Good

41.2% (206)

Fair

44.6% (223)

Poor

2% (10)

All Bridges (500)

Sort:

UP RR & AMTRAK

Over: STATE ROUTE 273

02-SHA-273-14.77-RDG, Shasta, CA

Built 1938 ADT: 23,000

UNION SCHOOL ROAD

Over: INTERSTATE 5

02-SHA-005-R22.41, Shasta, CA

Built 1968 ADT: 21,500

1ST ST

Over: INTERSTATE 5

02-SHA-005-0.66, Shasta, CA

Built 1964 ADT: 41,000

GAS POINT RD OC

Over: INTERSTATE 5

02-SHA-005-0.91, Shasta, CA

Built 1964 ADT: 41,000

INTERSTATE 5 SB

Over: S5-MAIN ST OFF-RAMP

02-SHA-005-1.91, Shasta, CA

Built 1964 ADT: 2,000

INTERSTATE 5 NB

Over: S5-MAIN ST OFF-RAMP

02-SHA-005-1.91, Shasta, CA

Built 1964 ADT: 2,000

UP RR & AMTRAK

Over: I-5 & ANTLERS ROAD

02-SHA-005-R40.60, Shasta, CA

Built 1972 ADT: 17,200

MCR RY

Over: STATE ROUTE 89

02-SHA-089-29.34, Shasta, CA

Built 1955 ADT: 1,700

UP RR & AMTRAK

Over: STATE ROUTE 151

02-SHA-151-5.51, Shasta, CA

Built 1938 ADT: 1,800

N5-E44 CONNECTOR

Over: HILLTOP DR

02-SHA-005-R15.31-RDG, Shasta, CA

Built 1968 ADT: 5,000

HILLTOP DR

Over: INTERSTATE 5

02-SHA-005-R16.15-RDG, Shasta, CA

Built 1965 ADT: 53,000

HILLTOP DR

Over: STATE ROUTE 44

02-SHA-044-R0.13-RDG, Shasta, CA

Built 1968 ADT: 48,500

SWEETBRIER AVE

Over: INTERSTATE 5

02-SHA-005-61.75, Shasta, CA

Built 1962 ADT: 17,100

CHURN CREEK ROAD

Over: INTERSTATE 5

02-SHA-005-R12.15-RDG, Shasta, CA

Built 1965 ADT: 51,000

LOMA VISTA DR

Over: INTERSTATE 5

02-SHA-005-R12.92-RDG, Shasta, CA

Built 1965 ADT: 53,000

HARTNELL AVE

Over: INTERSTATE 5

02-SHA-005-R13.95-RDG, Shasta, CA

Built 1965 ADT: 53,000

N5-W44 CONNECTOR

Over: STATE ROUTE 44

02-SHA-005-R15.43-RDG, Shasta, CA

Built 1965 ADT: 48,500

INTERSTATE 5 SB

Over: STATE ROUTE 44

02-SHA-005-R15.43-RDG, Shasta, CA

Built 1965 ADT: 48,500

INTERSTATE 5 NB

Over: STATE ROUTE 44

02-SHA-005-R15.43-RDG, Shasta, CA

Built 1965 ADT: 48,500

INTERSTATE 5 SB

Over: N5-W44 CONNECTOR RAMP

02-SHA-005-R15.56-RDG, Shasta, CA

Built 1965 ADT: 23,000

INTERSTATE 5 NB

Over: N5-W44 CONNECTOR RAMP

02-SHA-005-R15.59-RDG, Shasta, CA

Built 1965 ADT: 23,000

INTERSTATE 5 SB

Over: STATE ROUTE 299

02-SHA-005-R17.30-RDG, Shasta, CA

Built 1965 ADT: 18,509

INTERSTATE 5 NB

Over: STATE ROUTE 299

02-SHA-005-R17.30-RDG, Shasta, CA

Built 1965 ADT: 18,509

INTERSTATE 5 SB

Over: TURNTABLE BAY ROAD

02-SHA-005-R29.29L, Shasta, CA

Built 1968 ADT: 400

TURNTABLE BAY ROAD

Over: INTERSTATE 5 NB

02-SHA-005-R29.32R, Shasta, CA

Built 1968 ADT: 18,300

KNIGHTON ROAD

Over: INTERSTATE 5

02-SHA-005-R9.77, Shasta, CA

Built 1965 ADT: 51,069

STATE ROUTE 44 WB

Over: CONTINENTAL STREET

02-SHA-044-L0.40L-RDG, Shasta, CA

Built 1965 ADT: 4,000

STATE ROUTE 299 EB

Over: CONTINENTAL STREET

02-SHA-044-L0.44R-RDG, Shasta, CA

Built 1965 ADT: 4,000

N273-N5 CONNECTOR

Over: INTERSTATE 5

02-SHA-273-20.00-RDG, Shasta, CA

Built 1965 ADT: 52,000

SMITH ROAD

Over: INTERSTATE 5

02-SHA-005-R10.85, Shasta, CA

Built 1965 ADT: 51,000

INTERSTATE 5 SB

Over: STATE ROUTE 273

02-SHA-005-R3.82, Shasta, CA

Built 1966 ADT: 9,500

INTERSTATE 5 NB

Over: STATE ROUTE 273

02-SHA-005-R3.82, Shasta, CA

Built 1966 ADT: 9,500

INTERSTATE 5 SB

Over: TWIN VIEW BLVD

02-SHA-005-R18.07-RDG, Shasta, CA

Built 1965 ADT: 2,000

INTERSTATE 5 NB

Over: TWIN VIEW BLVD

02-SHA-005-R18.07-RDG, Shasta, CA

Built 1965 ADT: 2,000

RIVERSIDE AVE

Over: INTERSTATE 5

02-SHA-005-R6.74, Shasta, CA

Built 1966 ADT: 39,000

BRIDGE BAY ROAD

Over: INTERSTATE 5

02-SHA-005-R27.63, Shasta, CA

Built 1968 ADT: 19,500

OLD OREGON TRAIL

Over: INTERSTATE 5

02-SHA-005-R24.08, Shasta, CA

Built 1968 ADT: 21,500

OASIS ROAD

Over: INTERSTATE 5

02-SHA-005-R19.40-RDG, Shasta, CA

Built 1968 ADT: 34,000

STATE ROUTE 151

Over: INTERSTATE 5

02-SHA-151-R6.90, Shasta, CA

Built 1968 ADT: 29,500

GREGORY CREEK ROAD

Over: INTERSTATE 5

02-SHA-005-R39.05, Shasta, CA

Built 1966 ADT: 17,600

GILMAN ROAD

Over: INTERSTATE 5

02-SHA-005-R36.83, Shasta, CA

Built 1966 ADT: 17,600

PINE GROVE AVE

Over: INTERSTATE 5

02-SHA-005-R21.00, Shasta, CA

Built 1968 ADT: 29,500

WONDERLAND-FAWNDAL

Over: INTERSTATE 5

02-SHA-005-R26.04, Shasta, CA

Built 1968 ADT: 19,500

INTERSTATE 5 SB

Over: LAKEHEAD ROAD

02-SHA-005-R42.32, Shasta, CA

Built 1972 ADT: 250

POLLARD FLAT ROAD

Over: INTERSTATE 5

02-SHA-005-R50.81, Shasta, CA

Built 1991 ADT: 17,100

STATE ROUTE 299

Over: OLD OREGON TRAIL

02-SHA-299-27.22, Shasta, CA

Built 1974 ADT: 10,600

STATE ROUTE 299

Over: OLD OREGON TRAIL

02-SHA-299-27.22, Shasta, CA

Built 1974 ADT: 10,600

GIBSON ROAD

Over: INTERSTATE 5

02-SHA-005-53.30, Shasta, CA

Built 1989 ADT: 17,100

SLATE CREEK ROAD

Over: INTERSTATE 5

02-SHA-005-R49.15, Shasta, CA

Built 1991 ADT: 17,100

AIRPORT ROAD

Over: STATE ROUTE 44

02-SHA-044-R3.63, Shasta, CA

Built 1972 ADT: 15,550

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

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Compiled by PlainBridges, Independent data publisher

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.