Shasta County, CA

500 public highway bridges

Shasta County Bridge Snapshot

Shasta County, California contains 500 public highway bridges in the FHWA National Bridge Inventory. Roughly 41.2% are rated “Good,” 44.6% “Fair,” 2% “Poor,” and 2% 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.

500
Total Bridges
41.2%
Good
2%
Poor
2%
Structurally Deficient

Condition Distribution

Good
41.2% (206)
Fair
44.6% (223)
Poor
2% (10)
SD
2% (10)

All Bridges (500)

RAINBOW LAKE RD

Good

Over: DUCKET CREEK

0.4 MI N SUNNY HILL RD, Shasta, CA

Built 1975 Load: 28.2 t ADT: 40

MISTLETOE LN

Good

Over: WEST BRANCH CHURN CREEK

INTX MSTOE LN & CANBY RD, Shasta, CA

Built 1954 Load: 29.2 t ADT: 7,307

OLD 44 DR

Good

Over: CLOVER CREEK

0.5 MI W/N WHITMORE, Shasta, CA

Built 1954 Load: 29.5 t ADT: 1,000

INTERSTATE 5

Good

Over: DOG CREEK

02-SHA-005-45.54, Shasta, CA

Built 1956 Load: 29.8 t ADT: 17,100

INTERSTATE 5

Good

Over: FLUME CREEK ROAD

02-SHA-005-59.35, Shasta, CA

Built 1962 Load: 29.8 t ADT: 17,100

OAK RUN ROAD

Good

Over: CEDAR CREEK

S.R. 299, Shasta, CA

Built 1970 Load: 29.8 t ADT: 220

GOVER ROAD

Good

Over: BATTLE CREEK OVERFLOW

0.1 MI N TEHAMA CO LINE, Shasta, CA

Built 1961 Load: 30.1 t ADT: 536

INTERSTATE 5

Good

Over: CREEKSIDE ROAD

02-SHA-005-59.97, Shasta, CA

Built 1962 Load: 31.1 t ADT: 17,100

INTERSTATE 5

Good

Over: CONANT ROAD

02-SHA-005-60.51, Shasta, CA

Built 1962 Load: 31.1 t ADT: 17,100

INTERSTATE 5

Good

Over: NORTH STREET

02-SHA-005-R5.64-AND, Shasta, CA

Built 1966 Load: 31.4 t ADT: 39,000

INTERSTATE 5 NB

Good

Over: ANTLER ROAD

02-SHA-005-R41.05, Shasta, CA

Built 1972 Load: 31.4 t ADT: 8,600

PLATINA RD

Good

Over: DUNCAN CREEK

PM 11.35 MI E SR 36, Shasta, CA

Built 1975 Load: 31.4 t ADT: 233

ASH CR RD

Good

Over: ASH CREEK

4.0 MI E PARKVILLE RD, Shasta, CA

Built 1950 Load: 31.8 t ADT: 200

WHALEN RD

Good

Over: CASTLE CREEK

NO DATA ENTERED, Shasta, CA

Built 1999 Load: 32.1 t ADT: 50

Keswick Dam Road

Good

Over: KESWICK DAM SPILLWAY

4 MI NW OF REDDING, CA, Shasta, CA

Built 1942 Load: 32.4 t ADT: 1,000

INTERSTATE 5

Good

Over: SALT CREEK

02-SHA-005-R20.80, Shasta, CA

Built 1953 Load: 32.4 t ADT: 29,500

STATE ROUTE 299

Good

Over: STILLWATER CREEK

02-SHA-299-27.94, Shasta, CA

Built 1992 Load: 32.4 t ADT: 9,500

STATE ROUTE 299

Good

Over: MONTGOMERY CREEK

02-SHA-299-56.74, Shasta, CA

Built 1953 Load: 32.4 t ADT: 3,950

STATE ROUTE 299

Good

Over: BURNEY CREEK

02-SHA-299-74.85, Shasta, CA

Built 1949 Load: 32.4 t ADT: 3,600

STATE ROUTE 299

Good

Over: WEST BRANCH BURNEY CREEK

02-SHA-299-75.06, Shasta, CA

Built 1949 Load: 32.4 t ADT: 9,800

STATE ROUTE 44

Good

Over: BEAR CREEK

02-SHA-044-R14.45, Shasta, CA

Built 1978 Load: 32.4 t ADT: 3,975

STATE ROUTE 44

Good

Over: CLOUGH CREEK

02-SHA-044-R4.55, Shasta, CA

Built 1964 Load: 32.4 t ADT: 15,550

STATE ROUTE 44

Good

Over: A.C.I.D. CANAL

02-SHA-044-L0.70-RDG, Shasta, CA

Built 1965 Load: 32.4 t ADT: 37,800

INTERSTATE 5

Good

Over: ANDERSON CREEK OVERFLOW

02-SHA-005-R4.92-AND, Shasta, CA

Built 1966 Load: 32.4 t ADT: 39,000

STATE ROUTE 44

Good

Over: WEST BRANCH CHURN CREEK

02-SHA-044-R0.34-RDG, Shasta, CA

Built 1968 Load: 32.4 t ADT: 48,500

STATE ROUTE 44

Good

Over: CLOVER CREEK

02-SHA-044-R1.80-RDG, Shasta, CA

Built 1968 Load: 32.4 t ADT: 48,500

INTERSTATE 5

Good

Over: VOLLMERS ROAD

02-SHA-005-R45.95, Shasta, CA

Built 1991 Load: 32.4 t ADT: 17,100

STATE ROUTE 44

Good

Over: DESCHUTES ROAD

02-SHA-044-R7.00, Shasta, CA

Built 1986 Load: 32.4 t ADT: 7,000

INTERSTATE 5 NB

Good

Over: SACRAMENTO,UP RR,AMTRAK

02-SHA-005-R52.11, Shasta, CA

Built 1989 Load: 32.4 t ADT: 8,550

INTERSTATE 5 SB

Good

Over: FRONTAGE ROAD

02-SHA-005-52.84, Shasta, CA

Built 1989 Load: 32.4 t ADT: 8,550

INTERSTATE 5 NB

Good

Over: FRONTAGE ROAD

02-SHA-005-52.84, Shasta, CA

Built 1989 Load: 32.4 t ADT: 8,550

STATE ROUTE 299

Good

Over: CEDAR CREEK

02-SHA-299-48.18, Shasta, CA

Built 2000 Load: 32.4 t ADT: 4,750

STATE ROUTE 273

Good

Over: CLEAR CREEK

02-SHA-273-11.23, Shasta, CA

Built 1995 Load: 32.4 t ADT: 21,400

SR 89

Good

Over: CAYTON CREEK

02-SHA-089-31.21, Shasta, CA

Built 2008 Load: 32.4 t ADT: 1,700

STATE ROUTE 44

Good

Over: SACRAMENTO RIVER

02-SHA-044-L1.34-RDG, Shasta, CA

Built 2010 Load: 32.4 t ADT: 51,000

STATE ROUTE 36

Good

Over: M. FORK COTTONWOOD CREEK

02-SHA-036-7.58, Shasta, CA

Built 2005 Load: 32.4 t ADT: 570

INTERSTATE 5

Good

Over: SACRAMENTO RIVER

02-SHA-005-R39.98, Shasta, CA

Built 2016 Load: 32.4 t ADT: 17,600

INTERSTATE 5 SB

Good

Over: HILLSIDE

02-SHA-005-M29.68, Shasta, CA

Built 2019 Load: 32.4 t ADT: 9,150

INTERSTATE ROUTE 5

Good

Over: UPRR RAILROAD TRACKS

02-SHA-005-R4.53-AND, Shasta, CA

Built 2022 Load: 32.4 t ADT: 55,000

INTERSTATE ROUTE 5

Good

Over: ANDERSON CREEK

02-SHA-005-R5.04-AND, Shasta, CA

Built 2022 Load: 32.4 t ADT: 55,000

INTERSTATE 5

Good

Over: SIMS ROAD

02-SHA-005-57.41, Shasta, CA

Built 2021 Load: 32.4 t ADT: 17,100

INTERSTATE 5

Good

Over: CRAG VIEW DRIVE

02-SHA-005-66.84, Shasta, CA

Built 2021 Load: 32.4 t ADT: 18,000

LOWER GAS POINT RD

Good

Over: NORTH FORK COTTONWOOD CR

3.3 MI N OF GAS POINT RD., Shasta, CA

Built 2000 Load: 32.4 t ADT: 10

IRON MOUNTAIN ROAD

Good

Over: FLAT CREEK

IRON MTN RD 3KM N.SR 299, Shasta, CA

Built 1994 Load: 32.4 t ADT: 114

BRIDGE ST

Good

Over: FALL RIVER

IN FALL RIVER MILLS, Shasta, CA

Built 1993 Load: 32.4 t ADT: 300

OLD 44 DRIVE

Good

Over: CLOUGH CREEK

1 MI E OF OREGON TRAIL, Shasta, CA

Built 1998 Load: 32.4 t ADT: 980

HARTNELL AVE

Good

Over: WEST BRANCH CHURN CREEK

0.2 MI E CHURN CRK RD, Shasta, CA

Built 1975 Load: 32.4 t ADT: 21,027

SOUTH ST

Good

Over: A.C.I.D. CANAL

0.2 MI W ATHENS AVE, Shasta, CA

Built 1989 Load: 32.4 t ADT: 5,622

OASIS ROAD

Good

Over: NEWTOWN CREEK

0.6 MI WEST OF I-5, Shasta, CA

Built 1972 Load: 32.4 t ADT: 5,060

BLACK BUTTE RD

Good

Over: ASH CREEK

2.75 MI S OF SR 44, Shasta, CA

Built 1987 Load: 32.4 t ADT: 250

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