US Bridges

S Poe Valley Road over Lost River

Good

Klamath County, Oregon · At Olene Gap · Structure no. 18786 500 00003

Built
2000
25 years old
Condition
Good
inspected February 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
165 ft
2 main spans
Daily traffic
1,014
2020 count
Owner
County
County Highway Agency

About this bridge

S Poe Valley Road over Lost River is a prestressed concrete box beam or girders - multiple carrying S Poe Valley Road over Lost River in Klamath County, Oregon. It was built in 2000, so it is 25 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,014 vehicles a day, roughly 10% of them trucks, projected to reach 1,169 by 2025. The structure is 165 ft (50.3 m) long and 36 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

CarriesS Poe Valley Road
CrossesLost River
LocationAt Olene Gap
RouteCounty Highway 0B305
StateOregon
Coordinates42.17314, -121.61816
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating74 US tons
Inventory rating57.1 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHS 25 or greater
Structure length165 ft (50.3 m)
Longest span89 ft (27 m)
Deck width36 ft (11 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,014 (2020)
Projected traffic1,169 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 S Poe Valley Road over Lost River built?

It was built in 2000, making it 25 years old in 2025.

What condition is S Poe Valley Road over Lost River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2023.

How much traffic does S Poe Valley Road over Lost River carry?

About 1,014 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is S Poe Valley Road over Lost River?

The structure is 165 ft (50.3 m) long with a longest span of 89 ft (27 m) and a deck 36 ft wide.

Who owns S Poe Valley Road over Lost River?

It is owned by the County Highway Agency.