US Bridges

I-84 (SR-84) Wbl over SR-66 Intchg. X-Road

Fair

Morgan County, Utah · East Morgan Interchange · Structure no. 4D 661

Built
1962
63 years old
Condition
Fair
inspected July 2023
Type
Tee Beam
Concrete Continuous
Length
127 ft
3 main spans
Daily traffic
11,566
2023 count
Owner
State
State Highway Agency

About this bridge

I-84 (SR-84) Wbl over SR-66 Intchg. X-Road is a concrete continuous tee beam carrying I-84 (SR-84) Wbl over SR-66 Intchg. X-Road in Morgan County, Utah. It was built in 1962, so it is 63 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 11,566 vehicles a day, roughly 49% of them trucks, projected to reach 13,879 by 2043. The structure is 127 ft (38.7 m) long and 42 ft wide.

Location

Open in Google Maps
CarriesI-84 (SR-84) Wbl
CrossesSR-66 Intchg. X-Road
LocationEast Morgan Interchange
RouteInterstate 84
CountyMorgan County
StateUtah
Coordinates41.04224, -111.66512
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 inspectionJuly 2023
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 rating42.1 US tons
Inventory rating27.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length127 ft (38.7 m)
Longest span42 ft (12.8 m)
Deck width42 ft (12.7 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,566 (2023)
Projected traffic13,879 by 2043
Trucks49%
Lanes on structure2
Traffic directionOne-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) Wbl over SR-66 Intchg. X-Road built?

It was built in 1962, making it 63 years old in 2025.

What condition is I-84 (SR-84) Wbl over SR-66 Intchg. 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 July 2023.

How much traffic does I-84 (SR-84) Wbl over SR-66 Intchg. X-Road carry?

About 11,566 vehicles per day (2023 count), of which roughly 49% are trucks.

How long is I-84 (SR-84) Wbl over SR-66 Intchg. X-Road?

The structure is 127 ft (38.7 m) long with a longest span of 42 ft (12.8 m) and a deck 42 ft wide.

Who owns I-84 (SR-84) Wbl over SR-66 Intchg. X-Road?

It is owned by the State Highway Agency.