US Bridges

Fdr over Little Popo Agie

Good

Fremont County, Wyoming · No Data Entered · Structure no. 021403000001008

Built
1937
88 years old, rebuilt 1999
Condition
Good
inspected August 2024
Type
Girder and Floorbeam System
Steel
Length
41 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Fdr over Little Popo Agie is a steel girder and floorbeam system carrying Fdr over Little Popo Agie in Fremont County, Wyoming. It was built in 1937 and reconstructed in 1999, so it is 88 years old, older than the Wyoming average of 48.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, projected to reach 75 by 2045. The structure is 41 ft (12.5 m) long and 15 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesFdr
CrossesLittle Popo Agie
LocationNo Data Entered
RouteFederal Lands Road 300
StateWyoming
Coordinates42.60965, -108.85546
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating21.8 US tons
Inventory rating16.8 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length41 ft (12.5 m)
Longest span40 ft (12.2 m)
Deck width15 ft (4.6 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Fdr over Little Popo Agie built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1999.

What condition is Fdr over Little Popo Agie 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 August 2024.

How much traffic does Fdr over Little Popo Agie carry?

About 50 vehicles per day (latest count).

How long is Fdr over Little Popo Agie?

The structure is 41 ft (12.5 m) long with a longest span of 40 ft (12.2 m) and a deck 15 ft wide.

Who owns Fdr over Little Popo Agie?

It is owned by the U.S. Forest Service.