US Bridges

Co. Rd.Nw Kanarrav over I-15 (SR-15) Nbl & Sbl

Fair

Iron County, Utah · 5.5 Mi.No.New Harmony Int · Structure no. 0C 472

Built
1987
38 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
235 ft
4 main spans
Daily traffic
2,000
2012 count
Owner
State
State Highway Agency

About this bridge

Co. Rd.Nw Kanarrav over I-15 (SR-15) Nbl & Sbl is a steel continuous stringer/multi-beam or girder carrying Co. Rd.Nw Kanarrav over I-15 (SR-15) Nbl & Sbl in Iron 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 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 2,000 vehicles a day, projected to reach 2,500 by 2034. The structure is 235 ft (71.5 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCo. Rd.Nw Kanarrav
CrossesI-15 (SR-15) Nbl & Sbl
Location5.5 Mi.No.New Harmony Int
RouteCounty Highway 0
CountyIron County
StateUtah
Coordinates37.55806, -113.19222
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating42.9 US tons
Inventory rating32.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length235 ft (71.5 m)
Longest span78 ft (23.8 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2012)
Projected traffic2,500 by 2034
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 Co. Rd.Nw Kanarrav over I-15 (SR-15) Nbl & Sbl built?

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

What condition is Co. Rd.Nw Kanarrav over I-15 (SR-15) Nbl & Sbl 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 Co. Rd.Nw Kanarrav over I-15 (SR-15) Nbl & Sbl carry?

About 2,000 vehicles per day (2012 count).

How long is Co. Rd.Nw Kanarrav over I-15 (SR-15) Nbl & Sbl?

The structure is 235 ft (71.5 m) long with a longest span of 78 ft (23.8 m) and a deck 30 ft wide.

Who owns Co. Rd.Nw Kanarrav over I-15 (SR-15) Nbl & Sbl?

It is owned by the State Highway Agency.