US Bridges

I-84 (SR-84) over SR-86 Int. X-Road

Fair

Summit County, Utah · West Henefer Interchange · Structure no. 0F 292

Built
1973
52 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
113 ft
1 main span
Daily traffic
8,115
2014 count
Owner
State
State Highway Agency

About this bridge

I-84 (SR-84) over SR-86 Int. X-Road is a prestressed concrete stringer/multi-beam or girder carrying I-84 (SR-84) over SR-86 Int. X-Road in Summit County, Utah. It was built in 1973, so it is 52 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 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 8,115 vehicles a day, roughly 52% of them trucks, projected to reach 10,144 by 2034. The structure is 113 ft (34.5 m) long and 97 ft wide.

Location

Open in Google Maps
CarriesI-84 (SR-84)
CrossesSR-86 Int. X-Road
LocationWest Henefer Interchange
RouteInterstate 84
CountySummit County
StateUtah
Coordinates41.0446, -111.5234
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating21.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length113 ft (34.5 m)
Longest span109 ft (33.3 m)
Deck width97 ft (29.7 m)
Roadway width91 ft (27.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,115 (2014)
Projected traffic10,144 by 2034
Trucks52%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-84 (SR-84) over SR-86 Int. X-Road built?

It was built in 1973, making it 52 years old in 2025.

What condition is I-84 (SR-84) over SR-86 Int. X-Road 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 August 2024.

How much traffic does I-84 (SR-84) over SR-86 Int. X-Road carry?

About 8,115 vehicles per day (2014 count), of which roughly 52% are trucks.

How long is I-84 (SR-84) over SR-86 Int. X-Road?

The structure is 113 ft (34.5 m) long with a longest span of 109 ft (33.3 m) and a deck 97 ft wide.

Who owns I-84 (SR-84) over SR-86 Int. X-Road?

It is owned by the State Highway Agency.