US Bridges

STC7301;FREMONT ST over Portneuf River

Fair

Bannock County, Idaho · In Pocatello;fremont St. · Structure no. 000000000021430

Built
1968
57 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
45 ft
1 main span
Daily traffic
2,200
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

STC7301;FREMONT ST over Portneuf River is a steel stringer/multi-beam or girder carrying STC7301;FREMONT ST over Portneuf River in Bannock County, Idaho. It was built in 1968, so it is 57 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 2,200 vehicles a day, roughly 5% of them trucks, projected to reach 3,300 by 2042. The structure is 45 ft (13.7 m) long and 54 ft wide.

Location

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CarriesSTC7301;FREMONT ST
CrossesPortneuf River
LocationIn Pocatello;fremont St.
RouteCity Street 7301
CountyBannock County
StateIdaho
Coordinates42.86144, -112.45792
Functional classUrban Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: 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 typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length45 ft (13.7 m)
Longest span41 ft (12.5 m)
Deck width54 ft (16.5 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,200 (2023)
Projected traffic3,300 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
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 STC7301;FREMONT ST over Portneuf River built?

It was built in 1968, making it 57 years old in 2025.

What condition is STC7301;FREMONT ST over Portneuf River 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 STC7301;FREMONT ST over Portneuf River carry?

About 2,200 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is STC7301;FREMONT ST over Portneuf River?

The structure is 45 ft (13.7 m) long with a longest span of 41 ft (12.5 m) and a deck 54 ft wide.

Who owns STC7301;FREMONT ST over Portneuf River?

It is owned by the City or Municipal Highway Agency.