US Bridges

County ROAD.#236 over Mule Canyon

Fair

San Juan County, Utah · 14 Miles West of Blanding · Structure no. 037009C

Built
1955
70 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
42 ft
1 main span
Daily traffic
7
2010 count
Owner
County
County Highway Agency

About this bridge

County ROAD.#236 over Mule Canyon is a steel stringer/multi-beam or girder carrying County ROAD.#236 over Mule Canyon in San Juan County, Utah. It was built in 1955, so it is 70 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 7 vehicles a day, projected to reach 9 by 2030. The structure is 42 ft (12.8 m) long and 22 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesCounty ROAD.#236
CrossesMule Canyon
Location14 Miles West of Blanding
RouteCounty Highway 0
CountySan Juan County
StateUtah
Coordinates37.54417, -109.72894
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
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 alignment6: Equal to present minimum criteria
Operating rating39.2 US tons
Inventory rating28.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20 + Mod
Structure length42 ft (12.8 m)
Longest span41 ft (12.5 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7 (2010)
Projected traffic9 by 2030
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 County ROAD.#236 over Mule Canyon built?

It was built in 1955, making it 70 years old in 2025.

What condition is County ROAD.#236 over Mule Canyon 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 County ROAD.#236 over Mule Canyon carry?

About 7 vehicles per day (2010 count).

How long is County ROAD.#236 over Mule Canyon?

The structure is 42 ft (12.8 m) long with a longest span of 41 ft (12.5 m) and a deck 22 ft wide.

Who owns County ROAD.#236 over Mule Canyon?

It is owned by the County Highway Agency.