US Bridges

State Street over I-15 (SR-15) UPRR &

Poor

Davis County, Utah · West State St.Farmington · Structure no. 0C 449

Built
1973
52 years old
Condition
Poor
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
404 ft
3 main spans
Daily traffic
11,728
2017 count
Owner
State
State Highway Agency

About this bridge

State Street over I-15 (SR-15) UPRR & is a steel continuous stringer/multi-beam or girder carrying State Street over I-15 (SR-15) UPRR & in Davis County, Utah. It was built in 1973, so it is 52 years old, older than the Utah average of 40.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 11,728 vehicles a day, projected to reach 14,074 by 2037. The structure is 404 ft (123.2 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesState Street
CrossesI-15 (SR-15) UPRR &
LocationWest State St.Farmington
RouteCity Street 1454
CountyDavis County
StateUtah
Coordinates40.98056, -111.89811
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2023
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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating64.6 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length404 ft (123.2 m)
Longest span150 ft (45.7 m)
Deck width34 ft (10.4 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,728 (2017)
Projected traffic14,074 by 2037
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed3.7 mi (6 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 State Street over I-15 (SR-15) UPRR & built?

It was built in 1973, making it 52 years old in 2025.

What condition is State Street over I-15 (SR-15) UPRR & in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2023.

How much traffic does State Street over I-15 (SR-15) UPRR & carry?

About 11,728 vehicles per day (2017 count).

How long is State Street over I-15 (SR-15) UPRR &?

The structure is 404 ft (123.2 m) long with a longest span of 150 ft (45.7 m) and a deck 34 ft wide.

Who owns State Street over I-15 (SR-15) UPRR &?

It is owned by the State Highway Agency.