US Bridges

IRR BIA RTE 35 over Sf Warm Springs River

FairPosted for load

Wasco County, Oregon · 1.6 KM West of BIA Rt 2 · Structure no. 00000000000P908

Built
1999
26 years old
Condition
Fair
inspected June 2023
Type
Slab
Prestressed Concrete
Length
31 ft
1 main span
Daily traffic
10
2023 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE 35 over Sf Warm Springs River is a prestressed concrete slab carrying IRR BIA RTE 35 over Sf Warm Springs River in Wasco County, Oregon. It was built in 1999, so it is 26 years old, younger than the Oregon average of 49.9 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. Its operating status is: posted for load restriction.

It carries about 10 vehicles a day, roughly 40% of them trucks, projected to reach 25 by 2043. The structure is 31 ft (9.4 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesIRR BIA RTE 35
CrossesSf Warm Springs River
Location1.6 KM West of BIA Rt 2
RouteFederal Lands Road 35
StateOregon
Coordinates44.94312, -121.61119
Functional classRural Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating41.8 US tons
Inventory rating32.2 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span30 ft (9 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2023)
Projected traffic25 by 2043
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IRR BIA RTE 35 over Sf Warm Springs River built?

It was built in 1999, making it 26 years old in 2025.

What condition is IRR BIA RTE 35 over Sf Warm Springs 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 June 2023.

How much traffic does IRR BIA RTE 35 over Sf Warm Springs River carry?

About 10 vehicles per day (2023 count), of which roughly 40% are trucks.

How long is IRR BIA RTE 35 over Sf Warm Springs River?

The structure is 31 ft (9.4 m) long with a longest span of 30 ft (9 m) and a deck 20 ft wide.

Who owns IRR BIA RTE 35 over Sf Warm Springs River?

It is owned by the Bureau of Indian Affairs.