US Bridges

State Route 1 over Wages Creek

Good

Mendocino County, California · 01-MEN-001-78.30 · Structure no. 10 0137

Built
1977
48 years old
Condition
Good
inspected September 2021
Type
Slab
Concrete Continuous
Length
90 ft
3 main spans
Daily traffic
830
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 1 over Wages Creek is a concrete continuous slab carrying State Route 1 over Wages Creek in Mendocino County, California. It was built in 1977, so it is 48 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 830 vehicles a day, roughly 3% of them trucks, projected to reach 2,157 by 2041. The structure is 90 ft (27.4 m) long and 35 ft wide. If it were closed, the detour would be 62.1 mi (100 km).

CarriesState Route 1
CrossesWages Creek
Location01-MEN-001-78.30
RouteState Highway 1
Coordinates39.64857, -123.78013
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 inspectionSeptember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.8 US tons
Inventory rating51.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length90 ft (27.4 m)
Longest span34 ft (10.4 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic830 (2009)
Projected traffic2,157 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed62.1 mi (100 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 1 over Wages Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is State Route 1 over Wages Creek 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 September 2021.

How much traffic does State Route 1 over Wages Creek carry?

About 830 vehicles per day (2009 count), of which roughly 3% are trucks.

How long is State Route 1 over Wages Creek?

The structure is 90 ft (27.4 m) long with a longest span of 34 ft (10.4 m) and a deck 35 ft wide.

Who owns State Route 1 over Wages Creek?

It is owned by the State Highway Agency.