US Bridges

I-84 (SR-84) Wbl over Peterson Farm Road

Fair

Morgan County, Utah · 1.7 Mi.E.Peterson Intchg. · Structure no. 4D 676

Built
1964
61 years old
Condition
Fair
inspected July 2023
Type
Slab
Concrete Continuous
Length
80 ft
3 main spans
Daily traffic
11,655
2014 count
Owner
State
State Highway Agency

About this bridge

I-84 (SR-84) Wbl over Peterson Farm Road is a concrete continuous slab carrying I-84 (SR-84) Wbl over Peterson Farm Road in Morgan County, Utah. It was built in 1964, so it is 61 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 11,655 vehicles a day, roughly 41% of them trucks, projected to reach 14,569 by 2034. The structure is 80 ft (24.4 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-84 (SR-84) Wbl
CrossesPeterson Farm Road
Location1.7 Mi.E.Peterson Intchg.
RouteInterstate 84
CountyMorgan County
StateUtah
Coordinates41.09867, -111.74199
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.2 US tons
Inventory rating28.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length80 ft (24.4 m)
Longest span30 ft (9.1 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,655 (2014)
Projected traffic14,569 by 2034
Trucks41%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
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 Peterson Farm Road built?

It was built in 1964, making it 61 years old in 2025.

What condition is I-84 (SR-84) Wbl over Peterson Farm 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 Peterson Farm Road carry?

About 11,655 vehicles per day (2014 count), of which roughly 41% are trucks.

How long is I-84 (SR-84) Wbl over Peterson Farm Road?

The structure is 80 ft (24.4 m) long with a longest span of 30 ft (9.1 m) and a deck 41 ft wide.

Who owns I-84 (SR-84) Wbl over Peterson Farm Road?

It is owned by the State Highway Agency.