US Bridges

Pitney LN over Alley Creek

Good

Lake County, California · 0.3 MI E of Elk Mtn RD · Structure no. 14C0087

Built
1958
67 years old
Condition
Good
inspected February 2024
Type
Slab
Concrete Continuous
Length
68 ft
3 main spans
Daily traffic
321
2009 count
Owner
County
County Highway Agency

About this bridge

Pitney LN over Alley Creek is a concrete continuous slab carrying Pitney LN over Alley Creek in Lake 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 321 vehicles a day, roughly 3% of them trucks, projected to reach 549 by 2044. The structure is 68 ft (20.6 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesPitney LN
CrossesAlley Creek
Location0.3 MI E of Elk Mtn RD
RouteCounty Highway 0
Coordinates39.17958, -122.89695
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating36.4 US tons
Inventory rating28.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length68 ft (20.6 m)
Longest span26 ft (7.9 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic321 (2009)
Projected traffic549 by 2044
Trucks3%
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 Pitney LN over Alley Creek built?

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

What condition is Pitney LN over Alley 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 February 2024.

How much traffic does Pitney LN over Alley Creek carry?

About 321 vehicles per day (2009 count), of which roughly 3% are trucks.

How long is Pitney LN over Alley Creek?

The structure is 68 ft (20.6 m) long with a longest span of 26 ft (7.9 m) and a deck 25 ft wide.

Who owns Pitney LN over Alley Creek?

It is owned by the County Highway Agency.