US Bridges

Stc 4811;LENVILLE over Little Potlatch Creek

Fair

Latah County, Idaho · 6.0 N. 4.3 E. Genesee · Structure no. 000000000029645

Built
1940
85 years old, rebuilt 2002
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
43 ft
1 main span
Daily traffic
110
2023 count
Owner
Local
Other Local Agency

About this bridge

Stc 4811;LENVILLE over Little Potlatch Creek is a steel stringer/multi-beam or girder carrying Stc 4811;LENVILLE over Little Potlatch Creek in Latah County, Idaho. It was built in 1940 and reconstructed in 2002, so it is 85 years old, older than the Idaho average of 45.3 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 110 vehicles a day, roughly 83% of them trucks, projected to reach 165 by 2042. The structure is 43 ft (13.1 m) long and 26 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesStc 4811;LENVILLE
CrossesLittle Potlatch Creek
Location6.0 N. 4.3 E. Genesee
RouteCounty Highway 4811
CountyLatah County
StateIdaho
Coordinates46.63475, -116.8372
Functional classRural Major 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating99 US tons
Inventory rating59 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length43 ft (13.1 m)
Longest span41 ft (12.5 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2023)
Projected traffic165 by 2042
Trucks83%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Stc 4811;LENVILLE over Little Potlatch Creek built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 2002.

What condition is Stc 4811;LENVILLE over Little Potlatch 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 June 2024.

How much traffic does Stc 4811;LENVILLE over Little Potlatch Creek carry?

About 110 vehicles per day (2023 count), of which roughly 83% are trucks.

How long is Stc 4811;LENVILLE over Little Potlatch Creek?

The structure is 43 ft (13.1 m) long with a longest span of 41 ft (12.5 m) and a deck 26 ft wide.

Who owns Stc 4811;LENVILLE over Little Potlatch Creek?

It is owned by the Other Local Agency.