US Bridges

SR-154SB & On- over Union Pacific Railroad

Fair

Salt Lake County, Utah · South of Airport Intchg. · Structure no. 3C 668

Built
1986
39 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
208 ft
2 main spans
Daily traffic
21,510
2014 count
Owner
State
State Highway Agency

About this bridge

SR-154SB & On- over Union Pacific Railroad is a steel continuous stringer/multi-beam or girder carrying SR-154SB & On- over Union Pacific Railroad in Salt Lake County, Utah. It was built in 1986, so it is 39 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 21,510 vehicles a day, roughly 15% of them trucks, projected to reach 26,888 by 2034. The structure is 208 ft (63.3 m) long and 64 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR-154SB & On-
CrossesUnion Pacific Railroad
LocationSouth of Airport Intchg.
RouteState Highway 154
CountySalt Lake County
StateUtah
Coordinates40.75872, -111.98695
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 inspectionDecember 2024
Inspection intervalevery 23 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating28.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length208 ft (63.3 m)
Longest span102 ft (31.2 m)
Deck width64 ft (19.6 m)
Roadway width57 ft (17.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,510 (2014)
Projected traffic26,888 by 2034
Trucks15%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 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-154SB & On- over Union Pacific Railroad built?

It was built in 1986, making it 39 years old in 2025.

What condition is SR-154SB & On- over Union Pacific Railroad 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 2024.

How much traffic does SR-154SB & On- over Union Pacific Railroad carry?

About 21,510 vehicles per day (2014 count), of which roughly 15% are trucks.

How long is SR-154SB & On- over Union Pacific Railroad?

The structure is 208 ft (63.3 m) long with a longest span of 102 ft (31.2 m) and a deck 64 ft wide.

Who owns SR-154SB & On- over Union Pacific Railroad?

It is owned by the State Highway Agency.