US Bridges

N. Crane Road over Granger Creek

Good

Washington County, Idaho · 3.5 S. 11.8 E. Midvale · Structure no. 000000000028973

Built
1996
29 years old
Condition
Good
inspected June 2024
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
28 ft
1 main span
Daily traffic
60
2023 count
Owner
County
County Highway Agency

About this bridge

N. Crane Road over Granger Creek is a aluminum, wrought iron, or cast iron culvert carrying N. Crane Road over Granger Creek in Washington County, Idaho. It was built in 1996, so it is 29 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 60 vehicles a day, roughly 10% of them trucks, projected to reach 90 by 2039. The structure is 28 ft (8.5 m) long and 50 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

CarriesN. Crane Road
CrossesGranger Creek
Location3.5 S. 11.8 E. Midvale
RouteCounty Highway 0
StateIdaho
Coordinates44.41894, -116.49878
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
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span28 ft (8.5 m)
Deck width50 ft (15.2 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2023)
Projected traffic90 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 N. Crane Road over Granger Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is N. Crane Road over Granger Creek 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 June 2024.

How much traffic does N. Crane Road over Granger Creek carry?

About 60 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is N. Crane Road over Granger Creek?

The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.5 m) and a deck 50 ft wide.

Who owns N. Crane Road over Granger Creek?

It is owned by the County Highway Agency.