US Bridges

Quail Trail over Wolf Creek

FairPosted for load

Lake County, California · In Spring Valley Lake Dev · Structure no. 14C0050

Built
1967
58 years old, rebuilt 2007
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
124 ft
3 main spans
Daily traffic
36
2023 count
Owner
County
County Highway Agency

About this bridge

Quail Trail over Wolf Creek is a steel continuous stringer/multi-beam or girder carrying Quail Trail over Wolf Creek in Lake County, California. It was built in 1967 and reconstructed in 2007, 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. Its operating status is: posted for load restriction.

It carries about 36 vehicles a day, roughly 1% of them trucks, projected to reach 164 by 2045. The structure is 124 ft (37.8 m) long and 18 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesQuail Trail
CrossesWolf Creek
LocationIn Spring Valley Lake Dev
RouteCounty Highway 0
Coordinates39.08976, -122.60787
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.8 US tons
Inventory rating42.5 US tons

Structure

MaterialSteel Continuous
DeckSteel plate
Main spans3
Design loadUnknown
Structure length124 ft (37.8 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 traffic36 (2023)
Projected traffic164 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Quail Trail over Wolf Creek built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2007.

What condition is Quail Trail 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 Quail Trail over Wolf Creek carry?

About 36 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Quail Trail over Wolf Creek?

The structure is 124 ft (37.8 m) long with a longest span of 41 ft (12.5 m) and a deck 18 ft wide.

Who owns Quail Trail over Wolf Creek?

It is owned by the County Highway Agency.