US Bridges

State Route 162 over Willow Creek

Fair

Glenn County, California · 03-GLE-162-67.74 · Structure no. 11 0010

Built
1960
65 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete Continuous
Length
257 ft
9 main spans
Daily traffic
3,050
2015 count
Owner
State
State Highway Agency

About this bridge

State Route 162 over Willow Creek is a concrete continuous slab carrying State Route 162 over Willow Creek in Glenn County, California. It was built in 1960, so it is 65 years old, older 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 3,050 vehicles a day, roughly 12% of them trucks, projected to reach 4,504 by 2045. The structure is 257 ft (78.3 m) long and 35 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesState Route 162
CrossesWillow Creek
Location03-GLE-162-67.74
RouteState Highway 162
Coordinates39.52415, -122.17322
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating37.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length257 ft (78.3 m)
Longest span30 ft (9.1 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,050 (2015)
Projected traffic4,504 by 2045
Trucks12%
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 Willow Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is State Route 162 over 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 Willow Creek carry?

About 3,050 vehicles per day (2015 count), of which roughly 12% are trucks.

How long is State Route 162 over Willow Creek?

The structure is 257 ft (78.3 m) long with a longest span of 30 ft (9.1 m) and a deck 35 ft wide.

Who owns State Route 162 over Willow Creek?

It is owned by the State Highway Agency.