US Bridges

State Route 162 over South Fork Willow Creek

Fair

Glenn County, California · 03-GLE-162-62.50 · Structure no. 11 0090

Built
1981
44 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete Continuous
Length
92 ft
4 main spans
Daily traffic
800
2015 count
Owner
State
State Highway Agency

About this bridge

State Route 162 over South Fork Willow Creek is a concrete continuous slab carrying State Route 162 over South Fork Willow Creek in Glenn County, California. It was built in 1981, so it is 44 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 800 vehicles a day, roughly 18% of them trucks, projected to reach 2,252 by 2045. The structure is 92 ft (28 m) long and 39 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesState Route 162
CrossesSouth Fork Willow Creek
Location03-GLE-162-62.50
RouteState Highway 162
Coordinates39.52403, -122.27364
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating31.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length92 ft (28 m)
Longest span26 ft (7.9 m)
Deck width39 ft (12 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2015)
Projected traffic2,252 by 2045
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was State Route 162 over South Fork Willow Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is State Route 162 over South Fork Willow Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2023.

How much traffic does State Route 162 over South Fork Willow Creek carry?

About 800 vehicles per day (2015 count), of which roughly 18% are trucks.

How long is State Route 162 over South Fork Willow Creek?

The structure is 92 ft (28 m) long with a longest span of 26 ft (7.9 m) and a deck 39 ft wide.

Who owns State Route 162 over South Fork Willow Creek?

It is owned by the State Highway Agency.