US Bridges

SR-171EB to I215NB over SR-171 3500 South St.

Fair

Salt Lake County, Utah · 3500 South Int.-W.Valley · Structure no. 1C 664

Built
1976
49 years old
Condition
Fair
inspected December 2022
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
239 ft
2 main spans
Daily traffic
7,647
2021 count
Owner
State
State Highway Agency

About this bridge

SR-171EB to I215NB over SR-171 3500 South St. is a steel continuous stringer/multi-beam or girder carrying SR-171EB to I215NB over SR-171 3500 South St. in Salt Lake County, Utah. It was built in 1976, so it is 49 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 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 7,647 vehicles a day, roughly 15% of them trucks, projected to reach 9,176 by 2041. The structure is 239 ft (72.8 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesSR-171EB to I215NB
CrossesSR-171 3500 South St.
Location3500 South Int.-W.Valley
RouteInterstate 215
CountySalt Lake County
StateUtah
Coordinates40.69637, -111.95017
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating35.7 US tons
Inventory rating18.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length239 ft (72.8 m)
Longest span136 ft (41.5 m)
Deck width30 ft (9.2 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic7,647 (2021)
Projected traffic9,176 by 2041
Trucks15%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.7 mi (6 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-171EB to I215NB over SR-171 3500 South St. built?

It was built in 1976, making it 49 years old in 2025.

What condition is SR-171EB to I215NB over SR-171 3500 South St. 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 December 2022.

How much traffic does SR-171EB to I215NB over SR-171 3500 South St. carry?

About 7,647 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is SR-171EB to I215NB over SR-171 3500 South St.?

The structure is 239 ft (72.8 m) long with a longest span of 136 ft (41.5 m) and a deck 30 ft wide.

Who owns SR-171EB to I215NB over SR-171 3500 South St.?

It is owned by the State Highway Agency.