US Bridges

I-15 (SR-15) over Chicken Creek Oflow

Fair

Juab County, Utah · North of Mills Jct.Intchg · Structure no. 0E2238

Built
1985
40 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
17,450
2014 count
Owner
State
State Highway Agency

About this bridge

I-15 (SR-15) over Chicken Creek Oflow is a concrete continuous culvert carrying I-15 (SR-15) over Chicken Creek Oflow in Juab County, Utah. It was built in 1985, so it is 40 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 17,450 vehicles a day, roughly 37% of them trucks, projected to reach 21,813 by 2034. The structure is 24 ft (7.4 m) long and 140 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesI-15 (SR-15)
CrossesChicken Creek Oflow
LocationNorth of Mills Jct.Intchg
RouteInterstate 15
CountyJuab County
StateUtah
Coordinates39.48611, -111.97528
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
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 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 geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.4 m)
Longest span10 ft (3.1 m)
Deck width140 ft (42.7 m)
Roadway width140 ft (42.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,450 (2014)
Projected traffic21,813 by 2034
Trucks37%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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-15 (SR-15) over Chicken Creek Oflow built?

It was built in 1985, making it 40 years old in 2025.

What condition is I-15 (SR-15) over Chicken Creek Oflow 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 March 2023.

How much traffic does I-15 (SR-15) over Chicken Creek Oflow carry?

About 17,450 vehicles per day (2014 count), of which roughly 37% are trucks.

How long is I-15 (SR-15) over Chicken Creek Oflow?

The structure is 24 ft (7.4 m) long with a longest span of 10 ft (3.1 m) and a deck 140 ft wide.

Who owns I-15 (SR-15) over Chicken Creek Oflow?

It is owned by the State Highway Agency.