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:

MCCARDLE FLAT ROAD

Over: INTERSTATE 5

02-SHA-005-R47.35, Shasta, CA

Built 1991 ADT: 17,100

VICTOR AVENUE

Over: STATE ROUTE 44

02-SHA-044-R1.24-RDG, Shasta, CA

Built 1984 ADT: 48,500

CHURN CREEK ROAD

Over: STATE ROUTE 44

02-SHA-044-R0.38-RDG, Shasta, CA

Built 1985 ADT: 48,500

SHASTA VIEW DRIVE

Over: STATE ROUTE 44

02-SHA-044-R2.09, Shasta, CA

Built 1992 ADT: 48,500

AUDITORIUM DRIVE

Over: STATE ROUTE 44

02-SHA-044-L0.85-RDG, Shasta, CA

Built 2010 ADT: 51,000

STILLWATER ROAD

Over: STATE ROUTE 44

02-SHA-044-R4.96, Shasta, CA

Built 2019 ADT: 15,550

UP RR & AMTRAK

Over: MAIN STREET

0.3 MI N TEHAMA CO LINE, Shasta, CA

Built 1931 ADT: 2,359

UP RR & AMTRAK

Over: CITY STREETS,PARK,RIVER

0.5 MI W OF RTE 273, Shasta, CA

Built 1939 ADT: 1,000

A.C.I.D. FLUME

Over: OLINDA ROAD

0.6 MI W OF S.R. 273, Shasta, CA

Built 1918 ADT: 4,692

A.C.I.D. FLUME

Over: BRUCE DR

0.4 MI W S.R. 273, Shasta, CA

Built 1918 ADT: 1,200

CYPRESS AVE

Over: SACRAMENTO RIVER

0.6 MI WEST OF I-5, Shasta, CA

Built 2011 ADT: 3,600

ROAD 32N12

Over: HAT CREEK

NO DATA ENTERED, Shasta, CA

Built 1956 ADT: 30

FENDER FERRY

Over: PIT RIVER/SHASTA LAKE

NO DATA ENTERED, Shasta, CA

Built 1942 ADT: 50

FENDER FERRY

Over: MCCLOUD RIVER/SHASTA LK.

MCCLOUD BRIDGE CG, Shasta, CA

Built 1941 ADT: 50

FORKS FLAT

Over: NORTH FORK NOSONI CREEK

NO DATA ENTERED, Shasta, CA

Built 1990 ADT: 50

SIMS MTN.

Over: HAZEL CREEK

NO DATA ENTERED, Shasta, CA

Built 1955 ADT: 50

LOWER GAS POINT RD

Over: NORTH FORK COTTONWOOD CR

0.5 MI N OF GAS PONT ROAD, Shasta, CA

Built 1920 Load: 11.3 t ADT: 10

FENDER FERRY

Over: DOG CREEK

NO DATA ENTERED, Shasta, CA

Built 1917 Load: 11.3 t ADT: 50

SODA CREEK ROAD

Over: SODA CREEK

3.0 MI EAST OF I-5, Shasta, CA

Built 1930 Load: 11.7 t ADT: 2

ROUTE 11

Over: UPPER CLEAR CREEK

0.2 miles N of Hwy 299 (M, Shasta, CA

Built 1940 Load: 12.7 t ADT: 30

SERVICE ROAD

Over: CRYSTAL CREEK

0.1 miles S of Hwy 299 (M, Shasta, CA

Built 1940 Load: 12.7 t ADT: 50

ADOBE RD

Over: ANDERSON CREEK

3.4 MI SE BALLS FERRY RD, Shasta, CA

Built 1968 Load: 13.6 t ADT: 10

PLATINA RD

Over: HULING CREEK

P.M. 25.1 E FROM SR 36, Shasta, CA

Built 1924 Load: 14.3 t ADT: 610

CORAM ROAD

Over: COTTONWOOD CREEK

1.75 MI E OF SHASTA DAM, Shasta, CA

Built 2006 Load: 14.6 t ADT: 50

CHURN CREEK RD

Over: CHURN CREEK

0.75 MI W AIRPORT RD, Shasta, CA

Built 1952 Load: 15.2 t ADT: 2,000

ASH CR RD

Over: SACRAMENTO RIV OVERFLOW

1.0 MI E BALLS FERRY RD, Shasta, CA

Built 1927 Load: 15.2 t ADT: 850

ROUTE 20

Over: LOWER CLEAR CREEK

1.5 miles SW of Hwy 299 (, Shasta, CA

Built 1955 Load: 15.4 t ADT: 20

JACK RABIT FLAT RD

Over: BURNEY CREEK

0.1 MI S SH 299, Shasta, CA

Built 1989 Load: 15.6 t ADT: 23

SOUTH SHORE DRIVE

Over: BOULDER CREEK

3.5 miles south of Hwy 29, Shasta, CA

Built 1996 Load: 15.6 t

HILL BLVD

Over: CHURN CREEK

0.1 MI N LAKE BLVD, Shasta, CA

Built 1940 Load: 16.2 t ADT: 200

FRENCH GULCH ROAD

Over: FRENCH GULCH

2.3 MI NW/O TRINITY MT RD, Shasta, CA

Built 1935 Load: 16.2 t ADT: 60

LOWER GAS POINT RD

Over: LUCILLE CREEK

1.2 MI N GAS POINT RD, Shasta, CA

Built 1935 Load: 16.2 t ADT: 10

ASH CREEK ROAD

Over: ASH CREEK TRIBUTARY

1.8 MI E PARKVILLE RD, Shasta, CA

Built 1945 Load: 16.2 t ADT: 200

ASH CR RD

Over: ASH CREEK TRIBUTARY

2.2 MI E PARKVILLE RD, Shasta, CA

Built 1940 Load: 16.2 t ADT: 200

SHOTGUN ROAD

Over: SHOTGUN CREEK

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

Built 1915 Load: 16.5 t ADT: 10

CLARK CREEK ROAD

Over: BURNEY CREEK

0.5 MI NW OF SR 89, Shasta, CA

Built 1930 Load: 16.5 t ADT: 359

OAK RUN ROAD

Over: OAK RUN CREEK

6.6 MI S OF SR 299, Shasta, CA

Built 1912 Load: 17.2 t ADT: 530

SODA CREEK ROAD

Over: S FORK SODA CREEK

2 MI E OF I-5, Shasta, CA

Built 1960 Load: 17.2 t ADT: 80

PONDEROSA RD

Over: SOUTH FORK BEAR CREEK

2.0 MI N OF S.R. 44, Shasta, CA

Built 1930 Load: 17.2 t ADT: 90

MOINE ROAD

Over: SLATE CREEK

0.1 MI E SLATE CREEK RD, Shasta, CA

Built 1927 Load: 17.8 t ADT: 52

TAMARACK ROAD

Over: OLD COW CREEK

0.5 MI E OF LUMBER RD, Shasta, CA

Built 2001 Load: 17.8 t ADT: 20

LAKE SHORE DRIVE

Over: CHARLIE CREEK

1.8 MI SW ANTLR UC ON I-5, Shasta, CA

Built 1926 Load: 18.1 t ADT: 1,383

DEER FLAT RD

Over: NORTH FORK BATTLE CREEK

0.3 MI E RITTS MILL RD, Shasta, CA

Built 1947 Load: 18.1 t ADT: 120

ROCK CR RD

Over: ROCK CREEK

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

Built 1960 Load: 18.1 t ADT: 1,144

INTERSTATE 5 NB

Over: EAST CYPRESS AVE

02-SHA-005-R14.44-RDG, Shasta, CA

Built 1965 Load: 18.5 t ADT: 26,500

PONDEROSA WAY

Over: NORTH FORK BEAR CREEK

6.4 MI N OF S.R. 44, Shasta, CA

Built 1935 Load: 18.5 t ADT: 87

DERSCH RD

Over: LACK CREEK

3.2 MI S OF S.R. 44, Shasta, CA

Built 1962 Load: 18.5 t ADT: 896

STEEL BRIDGE RD

Over: BULLHOCK CREEK

0.7 MI SE OF BATEMAN RD., Shasta, CA

Built 1995 Load: 18.5 t ADT: 10

INTERSTATE 5 SB

Over: EAST CYPRESS AVE

02-SHA-005-R14.44-RDG, Shasta, CA

Built 1965 Load: 18.8 t ADT: 26,500

BLAND ROAD

Over: NORTH FORK WILSON CREEK

2.32 MI S PLATINA RD, Shasta, CA

Built 1972 Load: 18.8 t ADT: 60

Read our methodology — how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →

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