US Bridges

US-191 (SR-191) over Mormon Tank Wash

Fair

San Juan County, Utah · 3.8 Mi.North LA Sal Jct. · Structure no. 0E2441

Built
1998
27 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
6,237
2022 count
Owner
State
State Highway Agency

About this bridge

US-191 (SR-191) over Mormon Tank Wash is a concrete continuous culvert carrying US-191 (SR-191) over Mormon Tank Wash in San Juan County, Utah. It was built in 1998, so it is 27 years old, younger 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 6,237 vehicles a day, roughly 41% of them trucks, projected to reach 7,484 by 2042. The structure is 26 ft (8 m) long. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesUS-191 (SR-191)
CrossesMormon Tank Wash
Location3.8 Mi.North LA Sal Jct.
RouteU.S. Route 191
CountySan Juan County
StateUtah
Coordinates38.35408, -109.43453
Functional classRural Principal Arterial - Other

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 protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating98.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length26 ft (8 m)
Longest span11 ft (3.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,237 (2022)
Projected traffic7,484 by 2042
Trucks41%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 US-191 (SR-191) over Mormon Tank Wash built?

It was built in 1998, making it 27 years old in 2025.

What condition is US-191 (SR-191) over Mormon Tank Wash 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 September 2023.

How much traffic does US-191 (SR-191) over Mormon Tank Wash carry?

About 6,237 vehicles per day (2022 count), of which roughly 41% are trucks.

How long is US-191 (SR-191) over Mormon Tank Wash?

The structure is 26 ft (8 m) long with a longest span of 11 ft (3.5 m).

Who owns US-191 (SR-191) over Mormon Tank Wash?

It is owned by the State Highway Agency.