US Bridges

Lost Lake RD over West Fork Hood River

Fair

Hood River County, Oregon · 04.63MI SW HWY281-DEE Mil · Structure no. 15507A501 00465

Built
1965
60 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
154 ft
2 main spans
Daily traffic
251
2020 count
Owner
County
County Highway Agency

About this bridge

Lost Lake RD over West Fork Hood River is a prestressed concrete stringer/multi-beam or girder carrying Lost Lake RD over West Fork Hood River in Hood River County, Oregon. It was built in 1965, so it is 60 years old, older 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.

It carries about 251 vehicles a day, roughly 10% of them trucks, projected to reach 281 by 2025. The structure is 154 ft (46.9 m) long and 34 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesLost Lake RD
CrossesWest Fork Hood River
Location04.63MI SW HWY281-DEE Mil
RouteCounty Highway B0435
StateOregon
Coordinates45.5567, -121.6875
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
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 rating43.2 US tons
Inventory rating33.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length154 ft (46.9 m)
Longest span101 ft (30.8 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic251 (2020)
Projected traffic281 by 2025
Trucks10%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
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 Lost Lake RD over West Fork Hood River built?

It was built in 1965, making it 60 years old in 2025.

What condition is Lost Lake RD over West Fork Hood 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 September 2024.

How much traffic does Lost Lake RD over West Fork Hood River carry?

About 251 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Lost Lake RD over West Fork Hood River?

The structure is 154 ft (46.9 m) long with a longest span of 101 ft (30.8 m) and a deck 34 ft wide.

Who owns Lost Lake RD over West Fork Hood River?

It is owned by the County Highway Agency.