US Bridges

I-15 (SR-15)NB&SB over County Road

Fair

Millard County, Utah · 3.5 Miles North of Scipio · Structure no. 0E2204

Built
1987
38 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
29 ft
1 main span
Daily traffic
13,296
2021 count
Owner
State
State Highway Agency

About this bridge

I-15 (SR-15)NB&SB over County Road is a concrete culvert carrying I-15 (SR-15)NB&SB over County Road in Millard County, Utah. It was built in 1987, so it is 38 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 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 13,296 vehicles a day, roughly 32% of them trucks, projected to reach 15,955 by 2041. The structure is 29 ft (8.7 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesI-15 (SR-15)NB&SB
CrossesCounty Road
Location3.5 Miles North of Scipio
RouteInterstate 15
CountyMillard County
StateUtah
Coordinates39.30375, -112.08777
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
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating40.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length29 ft (8.7 m)
Longest span26 ft (7.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,296 (2021)
Projected traffic15,955 by 2041
Trucks32%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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)NB&SB over County Road built?

It was built in 1987, making it 38 years old in 2025.

What condition is I-15 (SR-15)NB&SB over County 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 February 2023.

How much traffic does I-15 (SR-15)NB&SB over County Road carry?

About 13,296 vehicles per day (2021 count), of which roughly 32% are trucks.

How long is I-15 (SR-15)NB&SB over County Road?

The structure is 29 ft (8.7 m) long with a longest span of 26 ft (7.9 m).

Who owns I-15 (SR-15)NB&SB over County Road?

It is owned by the State Highway Agency.