US Bridges

SR-139 over So.Spring Glen Stream

Fair

Carbon County, Utah · Spring Glen So.Of Helper · Structure no. 0E 417

Built
1933
92 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
1,556
2022 count
Owner
State
State Highway Agency

About this bridge

SR-139 over So.Spring Glen Stream is a concrete continuous culvert carrying SR-139 over So.Spring Glen Stream in Carbon County, Utah. It was built in 1933, so it is 92 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 1,556 vehicles a day, roughly 16% of them trucks, projected to reach 1,867 by 2042. The structure is 23 ft (6.9 m) long and 50 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesSR-139
CrossesSo.Spring Glen Stream
LocationSpring Glen So.Of Helper
RouteState Highway 139
CountyCarbon County
StateUtah
Coordinates39.65263, -110.85567
Functional classUrban 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
Channel and channel protection3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.6 US tons
Inventory rating16.4 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length23 ft (6.9 m)
Longest span10 ft (3 m)
Deck width50 ft (15.3 m)
Roadway width48 ft (14.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,556 (2022)
Projected traffic1,867 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR-139 over So.Spring Glen Stream built?

It was built in 1933, making it 92 years old in 2025.

What condition is SR-139 over So.Spring Glen Stream 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-139 over So.Spring Glen Stream carry?

About 1,556 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is SR-139 over So.Spring Glen Stream?

The structure is 23 ft (6.9 m) long with a longest span of 10 ft (3 m) and a deck 50 ft wide.

Who owns SR-139 over So.Spring Glen Stream?

It is owned by the State Highway Agency.