US Bridges

Reeder RD over Lost River

FairPosted for load

Klamath County, Oregon · 001 MI N of Hill RD · Structure no. 08105 981 00254

Built
1956
69 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Concrete
Length
74 ft
1 main span
Daily traffic
612
2020 count
Owner
County
County Highway Agency

About this bridge

Reeder RD over Lost River is a concrete tee beam carrying Reeder RD over Lost River in Klamath County, Oregon. It was built in 1956, so it is 69 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. Its operating status is: posted for other load-capacity restriction.

It carries about 612 vehicles a day, roughly 10% of them trucks, projected to reach 630 by 2025. The structure is 74 ft (22.6 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesReeder RD
CrossesLost River
Location001 MI N of Hill RD
RouteCounty Highway 0B320
StateOregon
Coordinates42.14079, -121.67878
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20 US tons
Inventory rating15.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length74 ft (22.6 m)
Longest span68 ft (20.7 m)
Deck width31 ft (9.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic612 (2020)
Projected traffic630 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Reeder RD over Lost River built?

It was built in 1956, making it 69 years old in 2025.

What condition is Reeder RD over Lost 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 March 2023.

How much traffic does Reeder RD over Lost River carry?

About 612 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Reeder RD over Lost River?

The structure is 74 ft (22.6 m) long with a longest span of 68 ft (20.7 m) and a deck 31 ft wide.

Who owns Reeder RD over Lost River?

It is owned by the County Highway Agency.