US Bridges

US 95 over E.Fk. Lapwai Creek

Fair

Lewis County, Idaho · 4.9 N. 1.0 E. Winchester · Structure no. 000000000033160

Built
1957
68 years old, rebuilt 1962
Condition
Fair
inspected November 2021
Type
Culvert
Steel
Length
53 ft
3 main spans
Daily traffic
3,600
2023 count
Owner
State
State Highway Agency

About this bridge

US 95 over E.Fk. Lapwai Creek is a steel culvert carrying US 95 over E.Fk. Lapwai Creek in Lewis County, Idaho. It was built in 1957 and reconstructed in 1962, so it is 68 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 3,600 vehicles a day, roughly 21% of them trucks, projected to reach 5,400 by 2042. The structure is 53 ft (16.2 m) long and 56 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesUS 95
CrossesE.Fk. Lapwai Creek
Location4.9 N. 1.0 E. Winchester
RouteU.S. Route 95
CountyLewis County
StateIdaho
Coordinates46.30103, -116.59119
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length53 ft (16.2 m)
Longest span13 ft (4 m)
Deck width56 ft (17 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,600 (2023)
Projected traffic5,400 by 2042
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$762,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 95 over E.Fk. Lapwai Creek built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1962.

What condition is US 95 over E.Fk. Lapwai 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 November 2021.

How much traffic does US 95 over E.Fk. Lapwai Creek carry?

About 3,600 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is US 95 over E.Fk. Lapwai Creek?

The structure is 53 ft (16.2 m) long with a longest span of 13 ft (4 m) and a deck 56 ft wide.

Who owns US 95 over E.Fk. Lapwai Creek?

It is owned by the State Highway Agency.