US Bridges

US 91 ;quinn Rd. over Uprr;quinn Road Op

Good

Bannock County, Idaho · In Pocatello;quinn Road · Structure no. 000000000017490

Built
1986
39 years old
Condition
Good
inspected September 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
106 ft
1 main span
Daily traffic
22,500
2023 count
Owner
State
State Highway Agency

About this bridge

US 91 ;quinn Rd. over Uprr;quinn Road Op is a prestressed concrete stringer/multi-beam or girder carrying US 91 ;quinn Rd. over Uprr;quinn Road Op in Bannock County, Idaho. It was built in 1986, so it is 39 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 22,500 vehicles a day, roughly 2% of them trucks, projected to reach 33,750 by 2042. The structure is 106 ft (32.3 m) long and 73 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesUS 91 ;quinn Rd.
CrossesUprr;quinn Road Op
LocationIn Pocatello;quinn Road
RouteU.S. Route 91
CountyBannock County
StateIdaho
Coordinates42.90583, -112.45764
Functional classUrban Other Principal Arterial

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 inspectionSeptember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89 US tons
Inventory rating47 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length106 ft (32.3 m)
Longest span103 ft (31.4 m)
Deck width73 ft (22.1 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,500 (2023)
Projected traffic33,750 by 2042
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.9 mi (3 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 91 ;quinn Rd. over Uprr;quinn Road Op built?

It was built in 1986, making it 39 years old in 2025.

What condition is US 91 ;quinn Rd. over Uprr;quinn Road Op 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 September 2022.

How much traffic does US 91 ;quinn Rd. over Uprr;quinn Road Op carry?

About 22,500 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is US 91 ;quinn Rd. over Uprr;quinn Road Op?

The structure is 106 ft (32.3 m) long with a longest span of 103 ft (31.4 m) and a deck 73 ft wide.

Who owns US 91 ;quinn Rd. over Uprr;quinn Road Op?

It is owned by the State Highway Agency.