US Bridges

Road 22N94 over Lgv Dam Spillway Approch

Fair

Plumas County, California · 500 Ft North of Lgv Dam · Structure no. 051153000001044

Built
1966
59 years old, rebuilt 1990
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
94 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Road 22N94 over Lgv Dam Spillway Approch is a steel stringer/multi-beam or girder carrying Road 22N94 over Lgv Dam Spillway Approch in Plumas County, California. It was built in 1966 and reconstructed in 1990, so it is 59 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 6 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 94 ft (28.7 m) long and 11 ft wide. If it were closed, the detour would be 13.7 mi (22 km).

Location

Open in Google Maps
CarriesRoad 22N94
CrossesLgv Dam Spillway Approch
Location500 Ft North of Lgv Dam
RouteFederal Lands Road 22N94
CountyPlumas County
StateCalifornia
Coordinates39.72673, -121.01933
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation*: *
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment7: Better than present minimum criteria
Operating rating—
Inventory rating—

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length94 ft (28.7 m)
Longest span94 ft (28.7 m)
Deck width11 ft (3.5 m)
Roadway width11 ft (3.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesOther
Detour if closed13.7 mi (22 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Road 22N94 over Lgv Dam Spillway Approch built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1990.

What condition is Road 22N94 over Lgv Dam Spillway Approch 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 September 2024.

How much traffic does Road 22N94 over Lgv Dam Spillway Approch carry?

About 50 vehicles per day (latest count).

How long is Road 22N94 over Lgv Dam Spillway Approch?

The structure is 94 ft (28.7 m) long with a longest span of 94 ft (28.7 m) and a deck 11 ft wide.

Who owns Road 22N94 over Lgv Dam Spillway Approch?

It is owned by the U.S. Forest Service.