US Bridges

North Grape Street over Little Wood River

Good

Lincoln County, Idaho · In Shoshone; N. Grape ST · Structure no. 000000000024916

Built
2016
9 years old
Condition
Good
inspected October 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
84 ft
1 main span
Daily traffic
100
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

North Grape Street over Little Wood River is a prestressed concrete stringer/multi-beam or girder carrying North Grape Street over Little Wood River in Lincoln County, Idaho. It was built in 2016, so it is 9 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 100 vehicles a day, roughly 5% of them trucks, projected to reach 150 by 2039. The structure is 84 ft (25.6 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNorth Grape Street
CrossesLittle Wood River
LocationIn Shoshone; N. Grape ST
RouteCity Street 0
StateIdaho
Coordinates42.93997, -114.41514
Functional classRural 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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.1 US tons
Inventory rating43.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length84 ft (25.6 m)
Longest span82 ft (25 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic150 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was North Grape Street over Little Wood River built?

It was built in 2016, making it 9 years old in 2025.

What condition is North Grape Street over Little Wood River 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 October 2022.

How much traffic does North Grape Street over Little Wood River carry?

About 100 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is North Grape Street over Little Wood River?

The structure is 84 ft (25.6 m) long with a longest span of 82 ft (25 m) and a deck 32 ft wide.

Who owns North Grape Street over Little Wood River?

It is owned by the City or Municipal Highway Agency.