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:

DERSCH ROAD

Over: STILLWATER CREEK

1.8 MI E/O AIRPORT RD, Shasta, CA

Built 1998 Load: 32.4 t ADT: 3,025

SILVER BRIDGE ROAD

Over: COW CREEK

0.1 MI S OLD RTE 44 DR, Shasta, CA

Built 1986 Load: 32.4 t ADT: 700

DERSCH RD

Over: BEAR CREEK

5.4 MI E DESCHUTES RD, Shasta, CA

Built 1963 Load: 32.4 t ADT: 1,320

MAIN ST

Over: COTTONWOOD CREEK

TEHAMA-SHASTA CO LINE, Shasta, CA

Built 2003 Load: 32.4 t ADT: 2,359

OLD 44 DR

Over: LITTLE COW CREEK

0.6 MI E. OF DESCHUTES RD, Shasta, CA

Built 1998 Load: 32.4 t ADT: 2,860

S BONNYVIEW RD EB

Over: SACRAMENTO RIVER

1.7 MI E/O SR 273, Shasta, CA

Built 1997 Load: 32.4 t ADT: 21,320

MCARTHUR RD

Over: DANA CREEK

0.4 MI E TED ELDER RD, Shasta, CA

Built 1973 Load: 32.4 t ADT: 475

OASIS ROAD

Over: BUCKEYE CREEK

1.1 MI WEST OF I-5, Shasta, CA

Built 1973 Load: 32.4 t ADT: 4,570

OLD ALTURAS RD

Over: SALMON CREEK

0.3 MI NE SALMON CREEK RD, Shasta, CA

Built 1980 Load: 32.4 t ADT: 4,130

PLACER ROAD

Over: CLEAR CREEK

3.0 MI E/O PLATINA RD, Shasta, CA

Built 1975 Load: 32.4 t ADT: 800

DRY CREEK RD

Over: DRY CREEK

1 MI N SR 299, Shasta, CA

Built 1987 Load: 32.4 t ADT: 2,769

SWEDE CR RD

Over: SWEDE CREEK

1.6 MI N OLD 44 DR, Shasta, CA

Built 1969 Load: 32.4 t ADT: 470

RED BLUFF ROAD

Over: MIDDLE CREEK

100 FT WEST OF SWASEY DR., Shasta, CA

Built 2000 Load: 32.4 t ADT: 330

S COW CR RD

Over: WILK GULCH

4.1 MI N S.R. 44, Shasta, CA

Built 1975 Load: 32.4 t ADT: 160

CRYSTAL CREEK RD

Over: WILLOW CREEK

AT SR 299, Shasta, CA

Built 1992 Load: 32.4 t ADT: 250

ISLAND ROAD

Over: FALL RIVER

0.5 MI N MCARTHUR RD, Shasta, CA

Built 1994 Load: 32.4 t ADT: 400

VALLECITO STREET

Over: SALT CREEK

0.2 MI W GRAND COULEE BL, Shasta, CA

Built 1960 Load: 32.4 t ADT: 300

BERNARD WAY

Over: EAST FORK STILLWATER CRK

200 FT EAST OF BEAR MT RD, Shasta, CA

Built 1975 Load: 32.4 t ADT: 800

BUCKEYE ST

Over: CHURN CREEK

0.2 MI N LAKE BL, Shasta, CA

Built 1950 Load: 32.4 t ADT: 500

BOULDER RD

Over: BOULDER CREEK

0.2 MI N OF LAKE BLVD, Shasta, CA

Built 1984 Load: 32.4 t ADT: 1,400

REDWOOD BLVD

Over: BOULDER CREEK

0.2 MI W & N S.R. 273, Shasta, CA

Built 1982 Load: 32.4 t ADT: 2,536

BENTON DRIVE

Over: SACRAMENTO RV-LK REDDING

0.1 MI N/O RIVERSIDE DR, Shasta, CA

Built 1998 Load: 32.4 t ADT: 4,000

MILLVILLE PLAIN RD

Over: DRY CREEK

0.1 MI N OF DERSCH ROAD, Shasta, CA

Built 1998 Load: 32.4 t ADT: 617

PINE GROVE AVENUE

Over: SALT CREEK

0.2 MI W I-5., Shasta, CA

Built 2000 Load: 32.4 t ADT: 3,630

KNIGHTON ROAD

Over: CHURN CREEK

1.1 MI EAST OF I5, Shasta, CA

Built 2002 Load: 32.4 t ADT: 3,850

KNIGHTON ROAD

Over: CLOVER CREEK

1.5 MI E OF I5, Shasta, CA

Built 2002 Load: 32.4 t ADT: 4,900

CHURN CREEK RD

Over: BOULDER CREEK

0.9 MI SOUTH OF SR 299, Shasta, CA

Built 1998 Load: 32.4 t ADT: 2,500

OLD 44 ROAD

Over: STILLWATER CREEK

0.5 MI E OF OREGON TRAIL, Shasta, CA

Built 2004 Load: 32.4 t ADT: 980

FOSTER RD

Over: MARK CREEK

2.7 MI SW GAS POINT RD, Shasta, CA

Built 2004 Load: 32.4 t ADT: 30

BLUE JAY LANE

Over: ANDERSON CREEK

0.2 MI E BALLS FERRY RD, Shasta, CA

Built 2006 Load: 32.4 t ADT: 375

AIRPORT ROAD

Over: SACRAMENTO RIVER

0.5 MI S OF DERSCH ROAD, Shasta, CA

Built 2010 Load: 32.4 t ADT: 9,460

SMIT BOTTOM RD

Over: A.C.I.D. CANAL

0.2 MI SOUTH OF FIRST ST, Shasta, CA

Built 2015 Load: 32.4 t ADT: 320

MT LASSEN WOODS DR

Over: MILLSEAT CREEK

0.2 MI N OF STATE RTE 44, Shasta, CA

Built 2007 Load: 32.4 t ADT: 20

MIDDLE BRIDGE ROAD

Over: SOUTH COW CREEK

LATOUR STATE FOREST, Shasta, CA

Built 1986 Load: 32.4 t ADT: 10

PINE GROVE AVE

Over: UP RR & AMTRAK

0.15 MI E LAKE BLVD, Shasta, CA

Built 1955 Load: 32.7 t ADT: 3,969

INTERSTATE 5 NB

Over: UPPER SALT CREEK ROAD

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

Built 1966 Load: 33.0 t ADT: 8,800

WESTSIDE AVE

Over: CANYON HOLLOW CREEK

0.1 MI S CANYON CREEK RD, Shasta, CA

Built 1957 Load: 33.0 t ADT: 6,400

EASTSIDE RD

Over: CANYON HOLLOW CREEK

0.3 MI N RADIO LANE, Shasta, CA

Built 1950 Load: 33.0 t ADT: 3,728

S BONNYVIEW RD WB

Over: SACRAMENTO RIVER

1.7 MI E/O SR 273, Shasta, CA

Built 1978 Load: 33.0 t ADT: 21,320

ROAD 33N49

Over: HAT CREEK

1 1/2 MI. N. OLD STA., Shasta, CA

Built 1972 Load: 33.7 t ADT: 20

FOSTER ROAD

Over: NORTH FORK COTTONWOOD CR

0.3 MI E GAS POINT RD, Shasta, CA

Built 1966 Load: 34.0 t ADT: 100

WHITMORE RD

Over: OLD COW CREEK

0.4 MI E OF W END FERN RD, Shasta, CA

Built 1954 Load: 34.0 t ADT: 750

IRON MOUNTAIN RD

Over: ROCK CREEK

5.6 MI N OF STATE RT 299, Shasta, CA

Built 1970 Load: 34.0 t ADT: 817

CASSEL-FALL RIV RD

Over: PIT RIVER

0.3 MI SE SR 299 FALL RIV, Shasta, CA

Built 1922 Load: 34.0 t ADT: 352

PONDEROSA WAY

Over: SOUTH FORK COW CREEK

3.5 MI S WHITMORE RD, Shasta, CA

Built 1935 Load: 34.0 t ADT: 87

STATE ROUTE 44

Over: STILLWATER CREEK

02-SHA-044-R4.31, Shasta, CA

Built 1964 Load: 35.0 t ADT: 15,550

PLATINA RD

Over: NORTH FORK COTTONWOOD CR

4.5 MI W GAS PT RD, Shasta, CA

Built 1957 Load: 35.0 t ADT: 265

STATE ROUTE 44

Over: CHURN CREEK

02-SHA-044-R1.56-RDG, Shasta, CA

Built 1968 Load: 35.3 t ADT: 24,250

DERSCH RD

Over: DRY CREEK

2.8 MI W ASH CREEK RD, Shasta, CA

Built 1963 Load: 35.3 t ADT: 1,550

DESCHUTES RD

Over: UP RR, AMTRAK, BARNEY ST

0.35 MI N/E SR 273, Shasta, CA

Built 1966 Load: 35.6 t ADT: 4,530

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