US Bridges

US 95 over Wi&m Railroad

Good

Latah County, Idaho · 14.5 N. Moscow · Structure no. 000000000018536

Built
2022
3 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
97 ft
1 main span
Daily traffic
5,500
2023 count
Owner
State
State Highway Agency

About this bridge

US 95 over Wi&m Railroad is a prestressed concrete stringer/multi-beam or girder carrying US 95 over Wi&m Railroad in Latah County, Idaho. It was built in 2022, so it is 3 years old, younger than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,500 vehicles a day, roughly 10% of them trucks, projected to reach 8,250 by 2042. The structure is 97 ft (29.5 m) long and 54 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUS 95
CrossesWi&m Railroad
Location14.5 N. Moscow
RouteU.S. Route 95
StateIdaho
Coordinates46.91761, -116.95164
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.6 US tons
Inventory rating45 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length97 ft (29.5 m)
Longest span94 ft (28.7 m)
Deck width54 ft (16.5 m)
Roadway width51 ft (15.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,500 (2023)
Projected traffic8,250 by 2042
Trucks10%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.1 mi (5 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 95 over Wi&m Railroad built?

It was built in 2022, making it 3 years old in 2025.

What condition is US 95 over Wi&m Railroad in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does US 95 over Wi&m Railroad carry?

About 5,500 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is US 95 over Wi&m Railroad?

The structure is 97 ft (29.5 m) long with a longest span of 94 ft (28.7 m) and a deck 54 ft wide.

Who owns US 95 over Wi&m Railroad?

It is owned by the State Highway Agency.