US Bridges

US 95 over Lapwai Creek

Fair

Nez Perce County, Idaho · 2.4 S. Culdesac · Structure no. 000000000018426

Built
2012
13 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
117 ft
1 main span
Daily traffic
3,600
2023 count
Owner
State
State Highway Agency

About this bridge

US 95 over Lapwai Creek is a prestressed concrete stringer/multi-beam or girder carrying US 95 over Lapwai Creek in Nez Perce County, Idaho. It was built in 2012, so it is 13 years old, younger 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 117 ft (35.7 m) long and 50 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

Open in Google Maps
CarriesUS 95
CrossesLapwai Creek
Location2.4 S. Culdesac
RouteU.S. Route 95
CountyNez Perce County
StateIdaho
Coordinates46.35378, -116.62386
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.7 US tons
Inventory rating38.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length117 ft (35.7 m)
Longest span114 ft (34.7 m)
Deck width50 ft (15.2 m)
Roadway width47 ft (14.4 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 closed16.8 mi (27 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 95 over Lapwai Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is US 95 over 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 2023.

How much traffic does US 95 over Lapwai Creek carry?

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

How long is US 95 over Lapwai Creek?

The structure is 117 ft (35.7 m) long with a longest span of 114 ft (34.7 m) and a deck 50 ft wide.

Who owns US 95 over Lapwai Creek?

It is owned by the State Highway Agency.