US Bridges

Ui Cnty RD 173 over Muddy Creek

FairPosted for load

Uinta County, Wyoming · 13 Mi. N.W. of Robertson · Structure no. FCW

Built
1984
41 years old
Condition
Fair
inspected May 2024
Type
Other
Steel
Length
54 ft
1 main span
Daily traffic
271
2024 count
Owner
County
County Highway Agency

About this bridge

Ui Cnty RD 173 over Muddy Creek is a steel other carrying Ui Cnty RD 173 over Muddy Creek in Uinta County, Wyoming. It was built in 1984, so it is 41 years old, younger 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. Its operating status is: posted for load restriction.

It carries about 271 vehicles a day, roughly 21% of them trucks, projected to reach 379 by 2043. The structure is 54 ft (16.5 m) long and 22 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesUi Cnty RD 173
CrossesMuddy Creek
Location13 Mi. N.W. of Robertson
RouteCounty Highway 173
CountyUinta County
StateWyoming
Coordinates41.26214, -110.60696
Functional classRural Minor 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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating27 US tons

Structure

Structure typeOther
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length54 ft (16.5 m)
Longest span52 ft (15.8 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic271 (2024)
Projected traffic379 by 2043
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$47,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Ui Cnty RD 173 over Muddy Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Ui Cnty RD 173 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 Ui Cnty RD 173 over Muddy Creek carry?

About 271 vehicles per day (2024 count), of which roughly 21% are trucks.

How long is Ui Cnty RD 173 over Muddy Creek?

The structure is 54 ft (16.5 m) long with a longest span of 52 ft (15.8 m) and a deck 22 ft wide.

Who owns Ui Cnty RD 173 over Muddy Creek?

It is owned by the County Highway Agency.