US Bridges

Stp 7151;BENTON ST over S.1st Ave;uprr;benton Op

Fair

Bannock County, Idaho · In Pocatello;benton St. · Structure no. 000000000021315

Built
1967
58 years old, rebuilt 2019
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
894 ft
13 main spans
Daily traffic
10,000
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Stp 7151;BENTON ST over S.1st Ave;uprr;benton Op is a steel stringer/multi-beam or girder carrying Stp 7151;BENTON ST over S.1st Ave;uprr;benton Op in Bannock County, Idaho. It was built in 1967 and reconstructed in 2019, so it is 58 years old, older than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 10,000 vehicles a day, roughly 2% of them trucks, projected to reach 15,000 by 2042. The structure is 894 ft (272.5 m) long and 68 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesStp 7151;BENTON ST
CrossesS.1st Ave;uprr;benton Op
LocationIn Pocatello;benton St.
RouteCity Street 7151
CountyBannock County
StateIdaho
Coordinates42.85956, -112.44647
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating52 US tons
Inventory rating31 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans13
Design loadHS 20
Structure length894 ft (272.5 m)
Longest span116 ft (35.4 m)
Deck width68 ft (20.8 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2023)
Projected traffic15,000 by 2042
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$13.8 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Stp 7151;BENTON ST over S.1st Ave;uprr;benton Op built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2019.

What condition is Stp 7151;BENTON ST over S.1st Ave;uprr;benton Op in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2023.

How much traffic does Stp 7151;BENTON ST over S.1st Ave;uprr;benton Op carry?

About 10,000 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Stp 7151;BENTON ST over S.1st Ave;uprr;benton Op?

The structure is 894 ft (272.5 m) long with a longest span of 116 ft (35.4 m) and a deck 68 ft wide.

Who owns Stp 7151;BENTON ST over S.1st Ave;uprr;benton Op?

It is owned by the City or Municipal Highway Agency.