US Bridges

Stc 4811;LENVILLE over Little Potlatch Creek

Fair

Latah County, Idaho · 5.4 N. 4.9 E. Genesee · Structure no. 000000000029635

Built
1965
60 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
35 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 1965, so it is 60 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.

It carries about 110 vehicles a day, roughly 83% of them trucks, projected to reach 165 by 2042. The structure is 35 ft (10.7 m) long and 23 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesStc 4811;LENVILLE
CrossesLittle Potlatch Creek
Location5.4 N. 4.9 E. Genesee
RouteCounty Highway 4811
CountyLatah County
StateIdaho
Coordinates46.62629, -116.82381
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating49.1 US tons
Inventory rating29 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadH 15
Structure length35 ft (10.7 m)
Longest span34 ft (10.4 m)
Deck width23 ft (7 m)
Roadway width23 ft (6.9 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 closed6.2 mi (10 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$471,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

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

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

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 35 ft (10.7 m) long with a longest span of 34 ft (10.4 m) and a deck 23 ft wide.

Who owns Stc 4811;LENVILLE over Little Potlatch Creek?

It is owned by the Other Local Agency.