US Bridges

Interchange X-Road over I-70 (SR-70)

Fair

Emery County, Utah · Muddy Creek Interchange · Structure no. 0C 723

Built
1989
36 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
287 ft
2 main spans
Daily traffic
500
2012 count
Owner
State
State Highway Agency

About this bridge

Interchange X-Road over I-70 (SR-70) is a steel continuous stringer/multi-beam or girder carrying Interchange X-Road over I-70 (SR-70) in Emery County, Utah. It was built in 1989, so it is 36 years old, younger 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 500 vehicles a day, roughly 32% of them trucks, projected to reach 1,000 by 2034. The structure is 287 ft (87.6 m) long and 33 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesInterchange X-Road
CrossesI-70 (SR-70)
LocationMuddy Creek Interchange
RouteInterstate 70
CountyEmery County
StateUtah
Coordinates38.81083, -111.21056
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.9 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length287 ft (87.6 m)
Longest span144 ft (43.9 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2012)
Projected traffic1,000 by 2034
Trucks32%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemYes

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 Interchange X-Road over I-70 (SR-70) built?

It was built in 1989, making it 36 years old in 2025.

What condition is Interchange X-Road over I-70 (SR-70) 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 2024.

How much traffic does Interchange X-Road over I-70 (SR-70) carry?

About 500 vehicles per day (2012 count), of which roughly 32% are trucks.

How long is Interchange X-Road over I-70 (SR-70)?

The structure is 287 ft (87.6 m) long with a longest span of 144 ft (43.9 m) and a deck 33 ft wide.

Who owns Interchange X-Road over I-70 (SR-70)?

It is owned by the State Highway Agency.