US Bridges

State Route 162 over Angels Slough

Good

Glenn County, California · 03-GLE-162-80.72 · Structure no. 11 0022

Built
1975
50 years old
Condition
Good
inspected November 2023
Type
Slab
Concrete Continuous
Length
146 ft
5 main spans
Daily traffic
2,400
2016 count
Owner
State
State Highway Agency

About this bridge

State Route 162 over Angels Slough is a concrete continuous slab carrying State Route 162 over Angels Slough in Glenn County, California. It was built in 1975, so it is 50 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,400 vehicles a day, roughly 10% of them trucks, projected to reach 3,562 by 2043. The structure is 146 ft (44.5 m) long and 34 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesState Route 162
CrossesAngels Slough
Location03-GLE-162-80.72
RouteState Highway 162
Coordinates39.46417, -121.94236
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.5 US tons
Inventory rating30.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length146 ft (44.5 m)
Longest span32 ft (9.8 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,400 (2016)
Projected traffic3,562 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Angels Slough built?

It was built in 1975, making it 50 years old in 2025.

What condition is State Route 162 over Angels Slough in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does State Route 162 over Angels Slough carry?

About 2,400 vehicles per day (2016 count), of which roughly 10% are trucks.

How long is State Route 162 over Angels Slough?

The structure is 146 ft (44.5 m) long with a longest span of 32 ft (9.8 m) and a deck 34 ft wide.

Who owns State Route 162 over Angels Slough?

It is owned by the State Highway Agency.