US Bridges

SR-151 106th So.St over I-15 (SR-15) Nbl & Sbl

Fair

Salt Lake County, Utah · 106th South Interchange · Structure no. 0F 663

Built
1999
26 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
187 ft
2 main spans
Daily traffic
39,950
2014 count
Owner
State
State Highway Agency

About this bridge

SR-151 106th So.St over I-15 (SR-15) Nbl & Sbl is a prestressed concrete continuous stringer/multi-beam or girder carrying SR-151 106th So.St over I-15 (SR-15) Nbl & Sbl in Salt Lake County, Utah. It was built in 1999, so it is 26 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 39,950 vehicles a day, roughly 25% of them trucks, projected to reach 49,938 by 2034. The structure is 187 ft (56.9 m) long and 176 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR-151 106th So.St
CrossesI-15 (SR-15) Nbl & Sbl
Location106th South Interchange
RouteState Highway 151
CountySalt Lake County
StateUtah
Coordinates40.55926, -111.89858
Functional classUrban Other Principal Arterial

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 inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.2 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length187 ft (56.9 m)
Longest span92 ft (28 m)
Deck width176 ft (53.7 m)
Roadway width114 ft (34.7 m)
Vertical clearance over deck17 ft (5.3 m)

Traffic and service

Average daily traffic39,950 (2014)
Projected traffic49,938 by 2034
Trucks25%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

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 SR-151 106th So.St over I-15 (SR-15) Nbl & Sbl built?

It was built in 1999, making it 26 years old in 2025.

What condition is SR-151 106th So.St 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 November 2024.

How much traffic does SR-151 106th So.St over I-15 (SR-15) Nbl & Sbl carry?

About 39,950 vehicles per day (2014 count), of which roughly 25% are trucks.

How long is SR-151 106th So.St over I-15 (SR-15) Nbl & Sbl?

The structure is 187 ft (56.9 m) long with a longest span of 92 ft (28 m) and a deck 176 ft wide.

Who owns SR-151 106th So.St over I-15 (SR-15) Nbl & Sbl?

It is owned by the State Highway Agency.