US Bridges

SH 32 over Fall River

Fair

Fremont County, Idaho · 5 Se. Ashton · Structure no. 000000000013880

Built
1963
62 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
220 ft
5 main spans
Daily traffic
1,800
2023 count
Owner
State
State Highway Agency

About this bridge

SH 32 over Fall River is a prestressed concrete stringer/multi-beam or girder carrying SH 32 over Fall River in Fremont County, Idaho. It was built in 1963, so it is 62 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 1,800 vehicles a day, roughly 20% of them trucks, projected to reach 2,700 by 2042. The structure is 220 ft (67.1 m) long and 33 ft wide. If it were closed, the detour would be 64 mi (103 km).

Location

Open in Google Maps
CarriesSH 32
CrossesFall River
Location5 Se. Ashton
RouteState Highway 32
CountyFremont County
StateIdaho
Coordinates44.02092, -111.42917
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating38 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length220 ft (67.1 m)
Longest span49 ft (14.9 m)
Deck width33 ft (10 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,800 (2023)
Projected traffic2,700 by 2042
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed64 mi (103 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.6 million (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 32 over Fall River built?

It was built in 1963, making it 62 years old in 2025.

What condition is SH 32 over Fall 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 August 2023.

How much traffic does SH 32 over Fall River carry?

About 1,800 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is SH 32 over Fall River?

The structure is 220 ft (67.1 m) long with a longest span of 49 ft (14.9 m) and a deck 33 ft wide.

Who owns SH 32 over Fall River?

It is owned by the State Highway Agency.