US Bridges

Ui Cnty RD 157 over Mill Creek

Poor

Uinta County, Wyoming · 13 Mi. S. of Evantson · Structure no. EGO

Built
1981
44 years old
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
271
2024 count
Owner
County
County Highway Agency

About this bridge

Ui Cnty RD 157 over Mill Creek is a steel stringer/multi-beam or girder carrying Ui Cnty RD 157 over Mill Creek in Uinta County, Wyoming. It was built in 1981, so it is 44 years old, younger than the Wyoming average of 48.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 271 vehicles a day, roughly 21% of them trucks, projected to reach 379 by 2043. The structure is 40 ft (12.2 m) long and 16 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesUi Cnty RD 157
CrossesMill Creek
Location13 Mi. S. of Evantson
RouteCounty Highway 157
CountyUinta County
StateWyoming
Coordinates41.07627, -110.91016
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating33 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span36 ft (11 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic271 (2024)
Projected traffic379 by 2043
Trucks21%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$266,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Ui Cnty RD 157 over Mill Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Ui Cnty RD 157 over Mill Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does Ui Cnty RD 157 over Mill Creek carry?

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

How long is Ui Cnty RD 157 over Mill Creek?

The structure is 40 ft (12.2 m) long with a longest span of 36 ft (11 m) and a deck 16 ft wide.

Who owns Ui Cnty RD 157 over Mill Creek?

It is owned by the County Highway Agency.