US Bridges

IRR BIA RTE 101 over Muddy Creek

Fair

Fremont County, Wyoming · 4 KM South of Mail Camp · Structure no. 00000000000C831

Built
1975
50 years old
Condition
Fair
inspected May 2024
Type
Culvert
Steel
Length
25 ft
1 main span
Daily traffic
90
2022 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE 101 over Muddy Creek is a steel culvert carrying IRR BIA RTE 101 over Muddy Creek in Fremont County, Wyoming. It was built in 1975, so it is 50 years old, older than the Wyoming average of 48.4 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 90 vehicles a day, roughly 15% of them trucks, projected to reach 105 by 2042. The structure is 25 ft (7.6 m) long and 30 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

CarriesIRR BIA RTE 101
CrossesMuddy Creek
Location4 KM South of Mail Camp
RouteFederal Lands Road 101
StateWyoming
Coordinates43.50493, -108.84728
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span25 ft (7.6 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2022)
Projected traffic105 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Indian Affairs
Maintained byBureau of Indian Affairs
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR BIA RTE 101 over Muddy Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is IRR BIA RTE 101 over Muddy Creek 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 May 2024.

How much traffic does IRR BIA RTE 101 over Muddy Creek carry?

About 90 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is IRR BIA RTE 101 over Muddy Creek?

The structure is 25 ft (7.6 m) long with a longest span of 25 ft (7.6 m) and a deck 30 ft wide.

Who owns IRR BIA RTE 101 over Muddy Creek?

It is owned by the Bureau of Indian Affairs.