US Bridges

Needles Entrance R over Little Spring Canyon

Fair

San Juan County, Utah · 39.5 Miles West of Jct. U · Structure no. 1340002P0000000

Built
1975
50 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete Continuous
Length
180 ft
3 main spans
Daily traffic
321
2019 count
Owner
Federal
National Park Service

About this bridge

Needles Entrance R over Little Spring Canyon is a concrete continuous tee beam carrying Needles Entrance R over Little Spring Canyon in San Juan County, Utah. It was built in 1975, so it is 50 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 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 321 vehicles a day, roughly 3% of them trucks, projected to reach 385 by 2039. The structure is 180 ft (54.8 m) long and 30 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNeedles Entrance R
CrossesLittle Spring Canyon
Location39.5 Miles West of Jct. U
RouteFederal Lands Road 10
StateUtah
Coordinates38.16235, -109.80028
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating60 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length180 ft (54.8 m)
Longest span70 ft (21.3 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic321 (2019)
Projected traffic385 by 2039
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerNational Park Service
Maintained byNational Park Service
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$12,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Needles Entrance R over Little Spring Canyon built?

It was built in 1975, making it 50 years old in 2025.

What condition is Needles Entrance R over Little Spring 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 June 2024.

How much traffic does Needles Entrance R over Little Spring Canyon carry?

About 321 vehicles per day (2019 count), of which roughly 3% are trucks.

How long is Needles Entrance R over Little Spring Canyon?

The structure is 180 ft (54.8 m) long with a longest span of 70 ft (21.3 m) and a deck 30 ft wide.

Who owns Needles Entrance R over Little Spring Canyon?

It is owned by the National Park Service.