US Bridges

Lasal Mt. Loop Rd. over Mill Creek

Fair

San Juan County, Utah · 12 Miles E.Of Jct. SR-191 · Structure no. 037020D

Built
2008
17 years old
Condition
Fair
inspected January 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
67 ft
1 main span
Daily traffic
20
2010 count
Owner
County
County Highway Agency

About this bridge

Lasal Mt. Loop Rd. over Mill Creek is a concrete box beam or girders - multiple carrying Lasal Mt. Loop Rd. over Mill Creek in San Juan County, Utah. It was built in 2008, so it is 17 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 6 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 20 vehicles a day, projected to reach 22 by 2030. The structure is 67 ft (20.4 m) long and 33 ft wide.

Location

Open in Google Maps
CarriesLasal Mt. Loop Rd.
CrossesMill Creek
Location12 Miles E.Of Jct. SR-191
RouteCounty Highway 1704
CountySan Juan County
StateUtah
Coordinates38.49989, -109.30708
Functional classRural Major Collector

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 protection9 ExcellentNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating42.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length67 ft (20.4 m)
Longest span66 ft (20.1 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic20 (2010)
Projected traffic22 by 2030
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Lasal Mt. Loop Rd. over Mill Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is Lasal Mt. Loop Rd. over Mill Creek 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 January 2024.

How much traffic does Lasal Mt. Loop Rd. over Mill Creek carry?

About 20 vehicles per day (2010 count).

How long is Lasal Mt. Loop Rd. over Mill Creek?

The structure is 67 ft (20.4 m) long with a longest span of 66 ft (20.1 m) and a deck 33 ft wide.

Who owns Lasal Mt. Loop Rd. over Mill Creek?

It is owned by the County Highway Agency.