US Bridges

US-191 (SR-191) over Flaming Gorge Dam Splway

FairPosted for load

Daggett County, Utah · Flaming Gorge Dam · Structure no. 0C 724

Built
1964
61 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
618 ft
1 main span
Daily traffic
1,715
2014 count
Owner
State
State Highway Agency

About this bridge

US-191 (SR-191) over Flaming Gorge Dam Splway is a steel stringer/multi-beam or girder carrying US-191 (SR-191) over Flaming Gorge Dam Splway in Daggett County, Utah. It was built in 1964, so it is 61 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. Its operating status is: posted for load restriction.

It carries about 1,715 vehicles a day, roughly 41% of them trucks, projected to reach 2,144 by 2034. The structure is 618 ft (188.5 m) long and 30 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesUS-191 (SR-191)
CrossesFlaming Gorge Dam Splway
LocationFlaming Gorge Dam
RouteU.S. Route 191
CountyDaggett County
StateUtah
Coordinates40.91468, -109.41987
Functional classRural Minor 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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating39.2 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+10 approach)
Design loadHS 20
Structure length618 ft (188.5 m)
Longest span48 ft (14.6 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,715 (2014)
Projected traffic2,144 by 2034
Trucks41%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US-191 (SR-191) over Flaming Gorge Dam Splway built?

It was built in 1964, making it 61 years old in 2025.

What condition is US-191 (SR-191) over Flaming Gorge Dam Splway 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 July 2023.

How much traffic does US-191 (SR-191) over Flaming Gorge Dam Splway carry?

About 1,715 vehicles per day (2014 count), of which roughly 41% are trucks.

How long is US-191 (SR-191) over Flaming Gorge Dam Splway?

The structure is 618 ft (188.5 m) long with a longest span of 48 ft (14.6 m) and a deck 30 ft wide.

Who owns US-191 (SR-191) over Flaming Gorge Dam Splway?

It is owned by the State Highway Agency.