US Bridges

US-191 (SR-191 over San Juan River

Fair

San Juan County, Utah · 5 Mi.Se.Bluff at Sand Is. · Structure no. 0C 616

Built
1971
54 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
556 ft
4 main spans
Daily traffic
1,976
2022 count
Owner
State
State Highway Agency

About this bridge

US-191 (SR-191 over San Juan River is a steel continuous stringer/multi-beam or girder carrying US-191 (SR-191 over San Juan River in San Juan County, Utah. It was built in 1971, so it is 54 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 1,976 vehicles a day, roughly 27% of them trucks, projected to reach 2,371 by 2042. The structure is 556 ft (169.5 m) long and 34 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesUS-191 (SR-191
CrossesSan Juan River
Location5 Mi.Se.Bluff at Sand Is.
RouteU.S. Route 191
CountySan Juan County
StateUtah
Coordinates37.25713, -109.61802
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.1 US tons
Inventory rating37.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length556 ft (169.5 m)
Longest span156 ft (47.5 m)
Deck width34 ft (10.5 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic1,976 (2022)
Projected traffic2,371 by 2042
Trucks27%
Lanes on structure2
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 San Juan River built?

It was built in 1971, making it 54 years old in 2025.

What condition is US-191 (SR-191 over San Juan River 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 US-191 (SR-191 over San Juan River carry?

About 1,976 vehicles per day (2022 count), of which roughly 27% are trucks.

How long is US-191 (SR-191 over San Juan River?

The structure is 556 ft (169.5 m) long with a longest span of 156 ft (47.5 m) and a deck 34 ft wide.

Who owns US-191 (SR-191 over San Juan River?

It is owned by the State Highway Agency.