US Bridges

Campbell RD over Portion of N Fk Sprague

Fair

Klamath County, Oregon · 006 MI West of Camp Six R · Structure no. 35C226121000920

Built
1980
45 years old
Condition
Fair
inspected July 2024
Type
Slab
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
44
2020 count
Owner
County
County Highway Agency

About this bridge

Campbell RD over Portion of N Fk Sprague is a prestressed concrete slab carrying Campbell RD over Portion of N Fk Sprague in Klamath County, Oregon. It was built in 1980, so it is 45 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 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 44 vehicles a day, projected to reach 49 by 2025. The structure is 41 ft (12.5 m) long and 32 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

Open in Google Maps
CarriesCampbell RD
CrossesPortion of N Fk Sprague
Location006 MI West of Camp Six R
RouteCounty Highway C1210
CountyKlamath County
StateOregon
Coordinates42.45616, -121.10937
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating30.8 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length41 ft (12.5 m)
Longest span19 ft (5.8 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44 (2020)
Projected traffic49 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 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 Campbell RD over Portion of N Fk Sprague built?

It was built in 1980, making it 45 years old in 2025.

What condition is Campbell RD over Portion of N Fk Sprague 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 July 2024.

How much traffic does Campbell RD over Portion of N Fk Sprague carry?

About 44 vehicles per day (2020 count).

How long is Campbell RD over Portion of N Fk Sprague?

The structure is 41 ft (12.5 m) long with a longest span of 19 ft (5.8 m) and a deck 32 ft wide.

Who owns Campbell RD over Portion of N Fk Sprague?

It is owned by the County Highway Agency.