US Bridges

US-191 (SR-191) over Big Mule Shoe Wash Tun.

Good

San Juan County, Utah · 4.3 Mi.No. of Lasal Jct. · Structure no. 0V 173

Built
1940
85 years old
Condition
Good
inspected September 2023
Type
Culvert
Other
Length
20 ft
1 main span
Daily traffic
6,237
2022 count
Owner
State
State Highway Agency

About this bridge

US-191 (SR-191) over Big Mule Shoe Wash Tun. is a other culvert carrying US-191 (SR-191) over Big Mule Shoe Wash Tun. in San Juan County, Utah. It was built in 1940, so it is 85 years old, older than the Utah average of 40.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,237 vehicles a day, roughly 41% of them trucks, projected to reach 7,484 by 2042. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesUS-191 (SR-191)
CrossesBig Mule Shoe Wash Tun.
Location4.3 Mi.No. of Lasal Jct.
RouteU.S. Route 191
CountySan Juan County
StateUtah
Coordinates38.36017, -109.43472
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating103.6 US tons

Structure

Structure typeCulvert
MaterialOther
DeckNot applicable
Main spans1
Design loadHL 93
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 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 structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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 US-191 (SR-191) over Big Mule Shoe Wash Tun. built?

It was built in 1940, making it 85 years old in 2025.

What condition is US-191 (SR-191) over Big Mule Shoe Wash Tun. in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does US-191 (SR-191) over Big Mule Shoe Wash Tun. carry?

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

How long is US-191 (SR-191) over Big Mule Shoe Wash Tun.?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m).

Who owns US-191 (SR-191) over Big Mule Shoe Wash Tun.?

It is owned by the State Highway Agency.