US Bridges

Wolf Creek Road over Wolf Creek

Fair

Lake County, California · In Spring Valley Lake Dev · Structure no. 14C0051

Built
1967
58 years old, rebuilt 2005
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
166 ft
4 main spans
Daily traffic
220
2023 count
Owner
County
County Highway Agency

About this bridge

Wolf Creek Road over Wolf Creek is a steel continuous stringer/multi-beam or girder carrying Wolf Creek Road over Wolf Creek in Lake County, California. It was built in 1967 and reconstructed in 2005, so it is 58 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 5 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 220 vehicles a day, roughly 5% of them trucks, projected to reach 166 by 2045. The structure is 166 ft (50.5 m) long and 18 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesWolf Creek Road
CrossesWolf Creek
LocationIn Spring Valley Lake Dev
RouteCounty Highway 0
CountyLake County
StateCalifornia
Coordinates39.06877, -122.58522
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.8 US tons
Inventory rating37.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckSteel plate
Main spans4
Design loadHS 20
Structure length166 ft (50.5 m)
Longest span41 ft (12.5 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic220 (2023)
Projected traffic166 by 2045
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Wolf Creek Road over Wolf Creek built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2005.

What condition is Wolf Creek Road over Wolf 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 Wolf Creek Road over Wolf Creek carry?

About 220 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Wolf Creek Road over Wolf Creek?

The structure is 166 ft (50.5 m) long with a longest span of 41 ft (12.5 m) and a deck 18 ft wide.

Who owns Wolf Creek Road over Wolf Creek?

It is owned by the County Highway Agency.