US Bridges

N 2925 E over Fall River

Fair

Fremont County, Idaho · 1.4 N. 0.2 E. Chester · Structure no. 000000000032075

Built
1963
62 years old
Condition
Fair
inspected November 2024
Type
Tee Beam
Prestressed Concrete
Length
63 ft
1 main span
Daily traffic
120
2023 count
Owner
County
County Highway Agency

About this bridge

N 2925 E over Fall River is a prestressed concrete tee beam carrying N 2925 E 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 6 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 120 vehicles a day, roughly 10% of them trucks, projected to reach 180 by 2039. The structure is 63 ft (19.2 m) long and 24 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesN 2925 E
CrossesFall River
Location1.4 N. 0.2 E. Chester
RouteCounty Highway 0
StateIdaho
Coordinates44.01847, -111.57067
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 48 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating34.7 US tons
Inventory rating20.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length63 ft (19.2 m)
Longest span61 ft (18.6 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2023)
Projected traffic180 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$603,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was N 2925 E over Fall River built?

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

What condition is N 2925 E 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 November 2024.

How much traffic does N 2925 E over Fall River carry?

About 120 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is N 2925 E over Fall River?

The structure is 63 ft (19.2 m) long with a longest span of 61 ft (18.6 m) and a deck 24 ft wide.

Who owns N 2925 E over Fall River?

It is owned by the County Highway Agency.