US Bridges

US 95 over Hatwai Creek

Fair

Nez Perce County, Idaho · 2.7 E. Lewiston · Structure no. 000000000018475

Built
1979
46 years old
Condition
Fair
inspected July 2022
Type
Culvert
Steel
Length
25 ft
1 main span
Daily traffic
13,000
2023 count
Owner
State
State Highway Agency

About this bridge

US 95 over Hatwai Creek is a steel culvert carrying US 95 over Hatwai Creek in Nez Perce County, Idaho. It was built in 1979, so it is 46 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 13,000 vehicles a day, roughly 16% of them trucks, projected to reach 19,500 by 2042. The structure is 25 ft (7.6 m) long and 160 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

Location

Open in Google Maps
CarriesUS 95
CrossesHatwai Creek
Location2.7 E. Lewiston
RouteU.S. Route 95
CountyNez Perce County
StateIdaho
Coordinates46.4325, -116.9125
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 inspectionJuly 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
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 spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span25 ft (7.6 m)
Deck width160 ft (48.8 m)
Roadway width96 ft (29.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,000 (2023)
Projected traffic19,500 by 2042
Trucks16%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 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 Hatwai Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is US 95 over Hatwai 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 July 2022.

How much traffic does US 95 over Hatwai Creek carry?

About 13,000 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is US 95 over Hatwai Creek?

The structure is 25 ft (7.6 m) long with a longest span of 25 ft (7.6 m) and a deck 160 ft wide.

Who owns US 95 over Hatwai Creek?

It is owned by the State Highway Agency.