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:

SODA CREEK RD

Over: SACRAMENTO RIVER

0.2 MI SE I-5, Shasta, CA

Built 1966 Load: 36.3 t ADT: 196

STATE ROUTE 299 EB

Over: HAWLEY ROAD

02-SHA-299-25.54, Shasta, CA

Built 1974 Load: 37.3 t ADT: 10,100

CEDARS ROAD

Over: A.C.I.D. CANAL

.2 MI S/O BRANSTETTER LN, Shasta, CA

Built 1962 Load: 37.6 t ADT: 360

STATE ROUTE 299

Over: PIT RIVER

02-SHA-299-84.48, Shasta, CA

Built 1933 Load: 37.9 t ADT: 3,050

CHURN CREEK ROAD

Over: CHURN CREEK

1.2 MI NO. OF KNIGHTON RD, Shasta, CA

Built 1935 Load: 37.9 t ADT: 2,770

CLEAR CR RD

Over: CLEAR CREEK

6.8 MI E OF S.R. 273, Shasta, CA

Built 1956 Load: 38.2 t ADT: 1,164

STEEL BRIDGE ROAD

Over: SOUTH COW CREEK

0.9 MI SE OF BATEMAN RD., Shasta, CA

Built 1980 Load: 38.6 t ADT: 10

E CYPRESS AVE

Over: A.C.I.D. CANAL

0.2 MI W OF ATHENS AVE, Shasta, CA

Built 1948 Load: 39.5 t ADT: 46,000

OASIS ROAD

Over: CHURN CREEK

0.2 MI WEST OF I-5, Shasta, CA

Built 1969 Load: 39.5 t ADT: 5,060

ASH CREEK ROAD

Over: SACRAMENTO RIV OVERFLOW

0.9 MI E BALLS FERRY RD, Shasta, CA

Built 1977 Load: 40.8 t ADT: 850

PAIGE BAR ROAD

Over: PAIGE BOULDER CREEK

1.5 miles SW of Hwy 299 (, Shasta, CA

Built 1998 Load: 40.8 t ADT: 10

GIRARD RIDGE

Over: SACRAMENTO RIVER

NO DATA ENTERED, Shasta, CA

Built 1974 Load: 41.5 t ADT: 50

LOCUST RD

Over: A.C.I.D. CANAL

30' SOUTH OF KIMBERLY RD, Shasta, CA

Built 1963 Load: 41.8 t ADT: 1,802

STATE ROUTE 299

Over: HAT CREEK

02-SHA-299-84.02, Shasta, CA

Built 1933 Load: 42.1 t ADT: 3,200

DERSCH ROAD

Over: COW CREEK

0.7 MI E DESCHUTES RD, Shasta, CA

Built 1965 Load: 42.1 t ADT: 2,158

SOUTH COW CREEK RD

Over: CLOUGH GULCH

2.7 MI NE OF SR44, Shasta, CA

Built 1975 Load: 42.1 t ADT: 90

Interstate 5 & RR

Over: Shasta Lake

02-SHA-005-R28.14, Shasta, CA

Built 1941 Load: 42.6 t ADT: 19,500

DESCHUTES RD

Over: HAWES GULCH

150 FT S DERSCH RD, Shasta, CA

Built 1944 Load: 43.1 t ADT: 3,380

MIDDLE BR RD

Over: BULLHOCK CREEK

LATOUR STATE FOREST, Shasta, CA

Built 1994 Load: 43.4 t ADT: 10

DEER CR AVE

Over: SALT CREEK

0.2 MI W I-5, Shasta, CA

Built 1960 Load: 43.7 t ADT: 100

WESTSIDE ROAD

Over: SQUAW CREEK

5.2 MI W SHASTA DAM, Shasta, CA

Built 1954 Load: 43.7 t ADT: 50

OLD ALTURAS RD

Over: CHURN CREEK

1.5 MI W OLD OREGON TRAIL, Shasta, CA

Built 1964 Load: 44.7 t ADT: 11,483

CLINE GULCH RD

Over: CLEAR CREEK

100FT E MAIN ST IN FR GUL, Shasta, CA

Built 1968 Load: 45.4 t ADT: 133

TRINITY MTN RD

Over: FRENCH GULCH

FRENCH GULCH RD, Shasta, CA

Built 1922 Load: 47.3 t ADT: 742

OASIS ROAD

Over: SALT CREEK

0.3 MI EAST OF I-5, Shasta, CA

Built 1974 Load: 48.3 t ADT: 5,791

BIG BEND RD

Over: HATCHET CREEK

0.8 MI N S.R. 299, Shasta, CA

Built 1970 Load: 53.5 t ADT: 550

STATE ROUTE 299

Over: CLEAR CREEK

02-SHA-299-8.73, Shasta, CA

Built 1988 Load: 53.8 t ADT: 3,800

MEYERS ROAD

Over: DRY CREEK

0.3 MI E DESCHUTES RD, Shasta, CA

Built 1960 Load: 56.7 t ADT: 200

STATE ROUTE 299

Over: FALL RIVER

02-SHA-299-91.39, Shasta, CA

Built 1933 Load: 57.3 t ADT: 3,250

OLD OREGON TRAIL

Over: MOODY CREEK

0.2 MI E OASIS & AKRICH, Shasta, CA

Built 1976 Load: 60.9 t ADT: 2,300

WESTSIDE RD

Over: OREGON GULCH

0.2 MI N KENYON DR, Shasta, CA

Built 1957 Load: 61.2 t ADT: 1,100

LASSEN PARK ROAD

Over: WEST FORK SULPHUR CREEK

2 miles north of South En, Shasta, CA

Built 1964 Load: 61.7 t ADT: 300

STATE ROUTE 299

Over: LEMM CREEK

02-SHA-299-32.25, Shasta, CA

Built 2015 Load: 64.5 t ADT: 4,750

INTERSTATE 5

Over: SHOTGUN CREEK

02-SHA-005-R55.59, Shasta, CA

Built 1957 Load: 99.9 t ADT: 17,100

NO DATA ENTERED

Over: BAILEY CREEK

NO DATA ENTERED, Shasta, CA

Built 2020 ADT: 20

NO DATA ENTERED

Over: BAILEY CREEK

NO DATA ENTERED, Shasta, CA

Built 2020 ADT: 20

FIR GULCH

Over: MID. FORK COTTONWOOD CR.

NO DATA ENTERED, Shasta, CA

Built 1981 ADT: 50

FENDER FERRY

Over: POTEM CREEK

NO DATA ENTERED, Shasta, CA

Built 1953 ADT: 50

FENDER FERRY

Over: EYE CREEK

NO DATA ENTERED, Shasta, CA

Built 1936 ADT: 50

BULLY HILL

Over: DIDALLIS CREEK

NO DATA ENTERED, Shasta, CA

Built 1941 ADT: 50

BULLY HILL

Over: WEST FORK DIDALLIS CREEK

NO DATA ENTERED, Shasta, CA

Built 1941 ADT: 50

FORKS FLAT

Over: S BRANCH N FK NOSONI CRK

NO DATA ENTERED, Shasta, CA

Built 1990 ADT: 50

SUMMIT LAKE

Over: NELSON CREEK

NO DATA ENTERED, Shasta, CA

Built 1966 ADT: 50

GABLE

Over: SULANHARAS CREEK

NO DATA ENTERED, Shasta, CA

Built 1989 ADT: 50

HAWKINS CREEK

Over: KOSK CREEK

NO DATA ENTERED, Shasta, CA

Built 1970 ADT: 50

NEW DOG

Over: DOG CREEK

NO DATA ENTERED, Shasta, CA

Built 1985 ADT: 50

WHALEN

Over: NORTH FORK CASTLE CREEK

NO DATA ENTERED, Shasta, CA

Built 1976 ADT: 50

HAZEL CREEK

Over: HAZEL CREEK

NO DATA ENTERED, Shasta, CA

Built 1978 ADT: 50

HAZEL CREEK

Over: HAZEL CREEK

NO DATA ENTERED, Shasta, CA

Built 1978 ADT: 50

HAWKINS CREEK

Over: BUTCHERKNIFE CREEK

NO DATA ENTERED, Shasta, CA

Built 1965 ADT: 50

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