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)

Sort:

BROKEOFF MEADWS RD

Over: BAILEY CREEK

2.0 MI S OF SR 44, Shasta, CA

Built 1972 Load: 25.6 t ADT: 113

DESCHUTES RD

Over: ANDERSON CREEK

0.35 MI W BALLS FERRY RD, Shasta, CA

Built 1970 Load: 25.6 t ADT: 4,355

DRY CREEK ROAD

Over: DRY CREEK

2.2 MI N SR 299, Shasta, CA

Built 1987 Load: 25.6 t ADT: 2,769

PLATINA ROAD

Over: MID FORK COTTONWOOD CRK

10.3 MI E OF S.R. 36, Shasta, CA

Built 1920 Load: 25.9 t ADT: 96

FENDERS FERRY ROAD

Over: WILLOW CREEK

0.1 MI N OF S.R. 299, Shasta, CA

Built 1940 Load: 25.9 t ADT: 300

VICTOR AVENUE

Over: CHURN CREEK

SOUTH OF HARTNELL AVE, Shasta, CA

Built 1984 Load: 25.9 t ADT: 10,000

FENDER FERRY RD

Over: DOG CREEK

NO DATA ENTERED, Shasta, CA

Built 1944 Load: 25.9 t ADT: 50

PARK AVENUE

Over: BURNEY CREEK

0.15 MI E TAMARACK AVE, Shasta, CA

Built 1958 Load: 26.2 t ADT: 980

TEXAS SPRINGS RD

Over: OLNEY CREEK

2.2 MI E SR 273-BRSTER RD, Shasta, CA

Built 1971 Load: 26.9 t ADT: 500

STATE ROUTE 44

Over: COW CREEK

02-SHA-044-R7.40, Shasta, CA

Built 1964 Load: 27.2 t ADT: 7,000

GIRVAN RD

Over: OLNEY CREEK

0.6 MI E OF SR 273, Shasta, CA

Built 1960 Load: 27.2 t ADT: 7,730

DANA DRIVE

Over: WEST BRANCH CHURN CREEK

0.05 MI W/O CANBY RD, Shasta, CA

Built 1958 Load: 27.5 t ADT: 21,118

DOG CREEK ROAD

Over: CLEAR CREEK

2.0 MI E/O EAST SIDE RD, Shasta, CA

Built 1936 Load: 28.5 t ADT: 50

STATE ROUTE 273

Over: SACRAMENTO RIVER

02-SHA-273-17.08-RDG, Shasta, CA

Built 1935 Load: 29.2 t ADT: 18,750

INTERSTATE 5 SB

Over: POWER LINE ROAD

02-SHA-005-R30.23L, Shasta, CA

Built 1968 Load: 29.2 t ADT: 9,150

FREEMAN WAY

Over: CLOVER CREEK

0.1 MI E GOODWATER RD, Shasta, CA

Built 1970 Load: 29.2 t ADT: 500

SUNNY HILL ROAD

Over: DUCKET CREEK

0.2 MI N RAINBOW LAKE RD, Shasta, CA

Built 1935 Load: 29.2 t ADT: 50

PLATINA RD

Over: EAGLE CREEK

P.M. 22.9 E OF S.R. 36, Shasta, CA

Built 1924 Load: 29.5 t ADT: 610

INTERSTATE 5

Over: HILLSIDE

02-SHA-005-62.63, Shasta, CA

Built 1960 Load: 30.1 t ADT: 9,000

STATE ROUTE 273

Over: ANDERSON CREEK

02-SHA-273-5.10-AND, Shasta, CA

Built 1948 Load: 30.8 t ADT: 9,800

INTERSTATE 5 SB

Over: UPPER SALT CREEK ROAD

02-SHA-005-R37.08, Shasta, CA

Built 1966 Load: 30.8 t ADT: 8,800

OLD ALTURAS ROAD

Over: DRY CREEK

0.2 MI E DESCHUTES RD, Shasta, CA

Built 1970 Load: 30.8 t ADT: 1,691

OLD ALTURAS RD

Over: STILLWATER CREEK

0.1 MI E OREGON TRAIL RD, Shasta, CA

Built 1979 Load: 31.1 t ADT: 4,130

INTERSTATE 5

Over: CHURN CREEK

02-SHA-005-R19.00-RDG, Shasta, CA

Built 1953 Load: 31.8 t ADT: 34,000

INTERSTATE 5 NB

Over: LAKEHEAD ROAD

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

Built 1972 Load: 32.1 t ADT: 8,600

STATE ROUTE 273

Over: A.C.I.D. CANAL

02-SHA-273-13.31-RDG, Shasta, CA

Built 1942 Load: 32.4 t ADT: 23,000

STATE ROUTE 273

Over: OREGON GULCH

02-SHA-273-13.88-RDG, Shasta, CA

Built 1942 Load: 32.4 t ADT: 23,000

STATE ROUTE 273

Over: CANYON CREEK

02-SHA-273-14.31-RDG, Shasta, CA

Built 1942 Load: 32.4 t ADT: 23,000

INTERSTATE 5

Over: SLATE CREEK

02-SHA-005-R48.83, Shasta, CA

Built 1991 Load: 32.4 t ADT: 17,100

STATE ROUTE 299

Over: LITTLE HATCHET CREEK

02-SHA-299-64.99, Shasta, CA

Built 1955 Load: 32.4 t ADT: 2,550

S5-299 CONNECTOR

Over: BOULDER CREEK

02-SHA-005-R17.32-RDG, Shasta, CA

Built 1965 Load: 32.4 t ADT: 27,000

STATE ROUTE 273

Over: A.C.I.D. CANAL

02-SHA-273-4.52-AND, Shasta, CA

Built 1948 Load: 32.4 t ADT: 9,800

STATE ROUTE 273

Over: BOULDER CREEK

02-SHA-273-19.09, Shasta, CA

Built 1953 Load: 32.4 t ADT: 12,800

INTERSTATE 5

Over: W FK STILLWATER CREEK

02-SHA-005-R25.05, Shasta, CA

Built 1955 Load: 32.4 t ADT: 19,500

INTERSTATE 5

Over: SACRAMENTO RIVER

02-SHA-005-R6.98-AND, Shasta, CA

Built 2003 Load: 32.4 t ADT: 51,000

INTERSTATE 5 NB

Over: HILLSIDE

02-SHA-005-R30.55R, Shasta, CA

Built 1968 Load: 32.4 t ADT: 18,300

INTERSTATE 5 NB

Over: HILLSIDE

02-SHA-005-R30.69R, Shasta, CA

Built 1968 Load: 32.4 t ADT: 18,300

INTERSTATE 5 NB

Over: HILLSIDE

02-SHA-005-R30.87R, Shasta, CA

Built 1968 Load: 32.4 t ADT: 18,300

INTERSTATE 5 SB

Over: O'BRIEN ROAD

02-SHA-005-R32.16L, Shasta, CA

Built 1968 Load: 32.4 t ADT: 9,150

INTERSTATE 5

Over: BOULDER CREEK

02-SHA-005-R17.13-RDG, Shasta, CA

Built 1965 Load: 32.4 t ADT: 53,000

STATE ROUTE 299

Over: WEST FORK STILLWATER CRK

02-SHA-299-27.28, Shasta, CA

Built 1966 Load: 32.4 t ADT: 9,200

INTERSTATE 5

Over: SPRING BRANCH CREEK

02-SHA-005-R24.54, Shasta, CA

Built 1968 Load: 32.4 t ADT: 19,500

INTERSTATE 5 SB

Over: SACRAMENTO,UP RR,AMTRAK

02-SHA-005-R51.80, Shasta, CA

Built 1989 Load: 32.4 t ADT: 8,550

INTERSTATE 5 NB

Over: SACRAMENTO,UP RR,AMTRAK

02-SHA-005-R51.80, Shasta, CA

Built 1989 Load: 32.4 t ADT: 8,550

INTERSTATE 5 SB

Over: SACRAMENTO,UP RR,AMTRAK

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

Built 1989 Load: 32.4 t ADT: 8,550

STATE ROUTE 299

Over: CEDAR CREEK

02-SHA-299-48.39, Shasta, CA

Built 2000 Load: 32.4 t ADT: 3,700

INTERSTATE 5

Over: COTTONWOOD CR,UP,AMTRAK

02-SHA-005-0.01, Shasta, CA

Built 1998 Load: 32.4 t ADT: 41,000

STATE ROUTE 44

Over: HAT CREEK

02-SHA-044-59.60, Shasta, CA

Built 2019 Load: 32.4 t ADT: 1,250

BUZZARD ROOST RD

Over: LITTLE COW CREEK

1 MI E OF OAK RUN RD, Shasta, CA

Built 1988 Load: 32.4 t ADT: 247

EAST FERN ROAD

Over: OLD COW CREEK

4.3 MI N OF WHITMORE RD, Shasta, CA

Built 2001 Load: 32.4 t ADT: 285

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 6, 2026