US Bridges

Stc 4811;LENVILLE over Little Potlatch Creek

FairPosted for load

Latah County, Idaho · 7.9 N. 4.1 E. Genesee · Structure no. 000000000029665

Built
1936
89 years old, rebuilt 2007
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
26 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 wood or timber stringer/multi-beam or girder carrying Stc 4811;LENVILLE over Little Potlatch Creek in Latah County, Idaho. It was built in 1936 and reconstructed in 2007, so it is 89 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 110 vehicles a day, roughly 83% of them trucks, projected to reach 165 by 2042. The structure is 26 ft (7.9 m) long and 25 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesStc 4811;LENVILLE
CrossesLittle Potlatch Creek
Location7.9 N. 4.1 E. Genesee
RouteCounty Highway 4811
StateIdaho
Coordinates46.66218, -116.84072
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating39 US tons
Inventory rating26 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 15
Structure length26 ft (7.9 m)
Longest span25 ft (7.6 m)
Deck width25 ft (7.6 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 closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$327,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

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

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 2007.

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 26 ft (7.9 m) long with a longest span of 25 ft (7.6 m) and a deck 25 ft wide.

Who owns Stc 4811;LENVILLE over Little Potlatch Creek?

It is owned by the Other Local Agency.