US Bridges

State Route 162 over Shepards Slough

Good

Glenn County, California · 03-GLE-162-75.64 · Structure no. 11 0014

Built
1958
67 years old
Condition
Good
inspected November 2023
Type
Slab
Concrete
Length
45 ft
1 main span
Daily traffic
2,700
2015 count
Owner
State
State Highway Agency

About this bridge

State Route 162 over Shepards Slough is a concrete slab carrying State Route 162 over Shepards Slough in Glenn County, California. It was built in 1958, so it is 67 years old, older 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 2,700 vehicles a day, roughly 12% of them trucks, projected to reach 4,504 by 2045. The structure is 45 ft (13.7 m) long and 34 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesState Route 162
CrossesShepards Slough
Location03-GLE-162-75.64
RouteState Highway 162
Coordinates39.52177, -122.02588
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 protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating77.5 US tons
Inventory rating46.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span42 ft (12.8 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,700 (2015)
Projected traffic4,504 by 2045
Trucks12%
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 Shepards Slough built?

It was built in 1958, making it 67 years old in 2025.

What condition is State Route 162 over Shepards 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 Shepards Slough carry?

About 2,700 vehicles per day (2015 count), of which roughly 12% are trucks.

How long is State Route 162 over Shepards Slough?

The structure is 45 ft (13.7 m) long with a longest span of 42 ft (12.8 m) and a deck 34 ft wide.

Who owns State Route 162 over Shepards Slough?

It is owned by the State Highway Agency.