US Bridges

N 400 E over S Branch Fall River Cnl

Good

Fremont County, Idaho · 0.3 S 0.9 E Chester · Structure no. 000000000032096

Built
2024
1 years old
Condition
Good
inspected April 2024
Type
Frame
Concrete
Length
30 ft
1 main span
Daily traffic
30
2024 count
Owner
County
County Highway Agency

About this bridge

N 400 E over S Branch Fall River Cnl is a concrete frame carrying N 400 E over S Branch Fall River Cnl in Fremont County, Idaho. It was built in 2024, so it is 1 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 30 vehicles a day, roughly 33% of them trucks, projected to reach 45 by 2042. The structure is 30 ft (9 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesN 400 E
CrossesS Branch Fall River Cnl
Location0.3 S 0.9 E Chester
RouteCounty Highway 0
StateIdaho
Coordinates43.99328, -111.55806
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.1 US tons
Inventory rating43.2 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length30 ft (9 m)
Longest span30 ft (9 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2024)
Projected traffic45 by 2042
Trucks33%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N 400 E over S Branch Fall River Cnl built?

It was built in 2024, making it 1 years old in 2025.

What condition is N 400 E over S Branch Fall River Cnl 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 April 2024.

How much traffic does N 400 E over S Branch Fall River Cnl carry?

About 30 vehicles per day (2024 count), of which roughly 33% are trucks.

How long is N 400 E over S Branch Fall River Cnl?

The structure is 30 ft (9 m) long with a longest span of 30 ft (9 m) and a deck 40 ft wide.

Who owns N 400 E over S Branch Fall River Cnl?

It is owned by the County Highway Agency.