US Bridges

SR-79EBL 31st St. over UPRR Rail Yards

Fair

Weber County, Utah · 0.5 MI.E.31st St.Intchg. · Structure no. 2C 314

Built
1960
65 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
419 ft
5 main spans
Daily traffic
23,440
2014 count
Owner
State
State Highway Agency

About this bridge

SR-79EBL 31st St. over UPRR Rail Yards is a steel stringer/multi-beam or girder carrying SR-79EBL 31st St. over UPRR Rail Yards in Weber County, Utah. It was built in 1960, so it is 65 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 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 23,440 vehicles a day, roughly 25% of them trucks, projected to reach 29,300 by 2034. The structure is 419 ft (127.7 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR-79EBL 31st St.
CrossesUPRR Rail Yards
Location0.5 MI.E.31st St.Intchg.
RouteState Highway 79
CountyWeber County
StateUtah
Coordinates41.2066, -111.98524
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
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 inspectionAugust 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 alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating35.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length419 ft (127.7 m)
Longest span115 ft (35.1 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic23,440 (2014)
Projected traffic29,300 by 2034
Trucks25%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
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-79EBL 31st St. over UPRR Rail Yards built?

It was built in 1960, making it 65 years old in 2025.

What condition is SR-79EBL 31st St. over UPRR Rail Yards 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 August 2023.

How much traffic does SR-79EBL 31st St. over UPRR Rail Yards carry?

About 23,440 vehicles per day (2014 count), of which roughly 25% are trucks.

How long is SR-79EBL 31st St. over UPRR Rail Yards?

The structure is 419 ft (127.7 m) long with a longest span of 115 ft (35.1 m) and a deck 33 ft wide.

Who owns SR-79EBL 31st St. over UPRR Rail Yards?

It is owned by the State Highway Agency.