US Bridges

IRR BIA RTE N6325 over Oljeto Wash

Fair

San Juan County, Utah · 2 MI NW of Oljeto · Structure no. 00000000000N322

Built
1992
33 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
186 ft
2 main spans
Daily traffic
614
2023 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE N6325 over Oljeto Wash is a prestressed concrete stringer/multi-beam or girder carrying IRR BIA RTE N6325 over Oljeto Wash in San Juan County, Utah. It was built in 1992, so it is 33 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 614 vehicles a day, roughly 3% of them trucks, projected to reach 718 by 2043. The structure is 186 ft (56.8 m) long and 35 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesIRR BIA RTE N6325
CrossesOljeto Wash
Location2 MI NW of Oljeto
RouteFederal Lands Road N6325
StateUtah
Coordinates37.06744, -110.31492
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length186 ft (56.8 m)
Longest span92 ft (28.1 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic614 (2023)
Projected traffic718 by 2043
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

OwnerBureau of Indian Affairs
Maintained byBureau of Indian Affairs
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR BIA RTE N6325 over Oljeto Wash built?

It was built in 1992, making it 33 years old in 2025.

What condition is IRR BIA RTE N6325 over Oljeto Wash 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 March 2023.

How much traffic does IRR BIA RTE N6325 over Oljeto Wash carry?

About 614 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is IRR BIA RTE N6325 over Oljeto Wash?

The structure is 186 ft (56.8 m) long with a longest span of 92 ft (28.1 m) and a deck 35 ft wide.

Who owns IRR BIA RTE N6325 over Oljeto Wash?

It is owned by the Bureau of Indian Affairs.