US Bridges

600 S. Street over I-15 (SR-15) NB and SB

Fair

Beaver County, Utah · 2.2 Mi.No.So.Beaver Int. · Structure no. 0C 571

Built
1970
55 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
225 ft
2 main spans
Daily traffic
122
2023 count
Owner
State
State Highway Agency

About this bridge

600 S. Street over I-15 (SR-15) NB and SB is a steel continuous stringer/multi-beam or girder carrying 600 S. Street over I-15 (SR-15) NB and SB in Beaver County, Utah. It was built in 1970, so it is 55 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 122 vehicles a day, roughly 27% of them trucks, projected to reach 146 by 2043. The structure is 225 ft (68.6 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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Carries600 S. Street
CrossesI-15 (SR-15) NB and SB
Location2.2 Mi.No.So.Beaver Int.
RouteCounty Highway 1004
CountyBeaver County
StateUtah
Coordinates38.2665, -112.65076
Functional classRural Minor Collector

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 inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating69.7 US tons
Inventory rating44.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length225 ft (68.6 m)
Longest span112 ft (34 m)
Deck width31 ft (9.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic122 (2023)
Projected traffic146 by 2043
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 600 S. Street over I-15 (SR-15) NB and SB built?

It was built in 1970, making it 55 years old in 2025.

What condition is 600 S. Street over I-15 (SR-15) NB and SB 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 February 2023.

How much traffic does 600 S. Street over I-15 (SR-15) NB and SB carry?

About 122 vehicles per day (2023 count), of which roughly 27% are trucks.

How long is 600 S. Street over I-15 (SR-15) NB and SB?

The structure is 225 ft (68.6 m) long with a longest span of 112 ft (34 m) and a deck 31 ft wide.

Who owns 600 S. Street over I-15 (SR-15) NB and SB?

It is owned by the State Highway Agency.