US Bridges

Peterson Lane over Adobe Creek

Fair

Lake County, California · 0.5 MI W Adobe Creek RD · Structure no. 14C0084

Built
1950
75 years old, rebuilt 2000
Condition
Fair
inspected March 2024
Type
Girder and Floorbeam System
Steel
Length
50 ft
1 main span
Daily traffic
23
2009 count
Owner
County
County Highway Agency

About this bridge

Peterson Lane over Adobe Creek is a steel girder and floorbeam system carrying Peterson Lane over Adobe Creek in Lake County, California. It was built in 1950 and reconstructed in 2000, so it is 75 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 23 vehicles a day, projected to reach 34 by 2046. The structure is 50 ft (15.2 m) long and 14 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesPeterson Lane
CrossesAdobe Creek
Location0.5 MI W Adobe Creek RD
RouteCounty Highway 0
CountyLake County
StateCalifornia
Coordinates38.92498, -122.88101
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating27.9 US tons
Inventory rating16.8 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length50 ft (15.2 m)
Longest span48 ft (14.6 m)
Deck width14 ft (4.3 m)
Roadway width13 ft (3.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23 (2009)
Projected traffic34 by 2046
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-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 Peterson Lane over Adobe Creek built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 2000.

What condition is Peterson Lane over Adobe 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 March 2024.

How much traffic does Peterson Lane over Adobe Creek carry?

About 23 vehicles per day (2009 count).

How long is Peterson Lane over Adobe Creek?

The structure is 50 ft (15.2 m) long with a longest span of 48 ft (14.6 m) and a deck 14 ft wide.

Who owns Peterson Lane over Adobe Creek?

It is owned by the County Highway Agency.