US Bridges

Stampfli Lane over Indian Creek

Fair

Plumas County, California · 2.9 MI E SR 89 · Structure no. 09C0029

Built
1965
60 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
180 ft
3 main spans
Daily traffic
400
2019 count
Owner
County
County Highway Agency

About this bridge

Stampfli Lane over Indian Creek is a steel continuous stringer/multi-beam or girder carrying Stampfli Lane over Indian Creek in Plumas County, California. It was built in 1965, so it is 60 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 400 vehicles a day, roughly 8% of them trucks, projected to reach 524 by 2044. The structure is 180 ft (54.9 m) long and 29 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesStampfli Lane
CrossesIndian Creek
Location2.9 MI E SR 89
RouteCounty Highway 0
CountyPlumas County
StateCalifornia
Coordinates40.10798, -120.86147
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.1 US tons
Inventory rating45.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length180 ft (54.9 m)
Longest span80 ft (24.4 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2019)
Projected traffic524 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Stampfli Lane over Indian Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Stampfli Lane over Indian 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 September 2023.

How much traffic does Stampfli Lane over Indian Creek carry?

About 400 vehicles per day (2019 count), of which roughly 8% are trucks.

How long is Stampfli Lane over Indian Creek?

The structure is 180 ft (54.9 m) long with a longest span of 80 ft (24.4 m) and a deck 29 ft wide.

Who owns Stampfli Lane over Indian Creek?

It is owned by the County Highway Agency.