US Bridges

SR-128 over Mule Shoe Wash

Fair

Grand County, Utah · 1 Mi. So. of Dewey Bridge · Structure no. 0F 329

Built
1971
54 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
43 ft
1 main span
Daily traffic
364
2017 count
Owner
State
State Highway Agency

About this bridge

SR-128 over Mule Shoe Wash is a prestressed concrete stringer/multi-beam or girder carrying SR-128 over Mule Shoe Wash in Grand County, Utah. It was built in 1971, so it is 54 years old, older than the Utah average of 40.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 364 vehicles a day, roughly 25% of them trucks, projected to reach 437 by 2037. The structure is 43 ft (13.1 m) long and 30 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesSR-128
CrossesMule Shoe Wash
Location1 Mi. So. of Dewey Bridge
RouteState Highway 128
CountyGrand County
StateUtah
Coordinates38.80204, -109.3121
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60.4 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length43 ft (13.1 m)
Longest span39 ft (11.9 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic364 (2017)
Projected traffic437 by 2037
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR-128 over Mule Shoe Wash built?

It was built in 1971, making it 54 years old in 2025.

What condition is SR-128 over Mule Shoe Wash 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 September 2023.

How much traffic does SR-128 over Mule Shoe Wash carry?

About 364 vehicles per day (2017 count), of which roughly 25% are trucks.

How long is SR-128 over Mule Shoe Wash?

The structure is 43 ft (13.1 m) long with a longest span of 39 ft (11.9 m) and a deck 30 ft wide.

Who owns SR-128 over Mule Shoe Wash?

It is owned by the State Highway Agency.