US Bridges

Snake Rvr Ave Ramp over Ramp;snake River;high Br

Good

Nez Perce County, Idaho · In Lewiston · Structure no. 000000000021195

Built
1982
43 years old
Condition
Good
inspected May 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
550 ft
5 main spans
Daily traffic
5,550
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Snake Rvr Ave Ramp over Ramp;snake River;high Br is a prestressed concrete continuous box beam or girders - single or spread carrying Snake Rvr Ave Ramp over Ramp;snake River;high Br in Nez Perce County, Idaho. It was built in 1982, so it is 43 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,550 vehicles a day, roughly 10% of them trucks, projected to reach 8,325 by 2039. The structure is 550 ft (167.6 m) long and 37 ft wide.

CarriesSnake Rvr Ave Ramp
CrossesRamp;snake River;high Br
LocationIn Lewiston
RouteCity Street 0
StateIdaho
Coordinates46.39611, -117.03681
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length550 ft (167.6 m)
Longest span134 ft (40.8 m)
Deck width37 ft (11.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,550 (2023)
Projected traffic8,325 by 2039
Trucks10%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesOther
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Snake Rvr Ave Ramp over Ramp;snake River;high Br built?

It was built in 1982, making it 43 years old in 2025.

What condition is Snake Rvr Ave Ramp over Ramp;snake River;high Br 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 May 2024.

How much traffic does Snake Rvr Ave Ramp over Ramp;snake River;high Br carry?

About 5,550 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Snake Rvr Ave Ramp over Ramp;snake River;high Br?

The structure is 550 ft (167.6 m) long with a longest span of 134 ft (40.8 m) and a deck 37 ft wide.

Who owns Snake Rvr Ave Ramp over Ramp;snake River;high Br?

It is owned by the City or Municipal Highway Agency.