US Bridges

Dixon RD over Annie Creek Slough

Fair

Klamath County, Oregon · 001 MI E of HWY 62 · Structure no. 35C122062400010

Built
1978
47 years old
Condition
Fair
inspected March 2023
Type
Slab
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
87
2020 count
Owner
County
County Highway Agency

About this bridge

Dixon RD over Annie Creek Slough is a prestressed concrete slab carrying Dixon RD over Annie Creek Slough in Klamath County, Oregon. It was built in 1978, so it is 47 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 87 vehicles a day, roughly 10% of them trucks, projected to reach 95 by 2025. The structure is 37 ft (11.3 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesDixon RD
CrossesAnnie Creek Slough
Location001 MI E of HWY 62
RouteCounty Highway C0624
StateOregon
Coordinates42.73373, -122.00664
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
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 rating86 US tons
Inventory rating52 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span37 ft (11.3 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic87 (2020)
Projected traffic95 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Dixon RD over Annie Creek Slough built?

It was built in 1978, making it 47 years old in 2025.

What condition is Dixon RD over Annie Creek Slough 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 Dixon RD over Annie Creek Slough carry?

About 87 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Dixon RD over Annie Creek Slough?

The structure is 37 ft (11.3 m) long with a longest span of 37 ft (11.3 m) and a deck 32 ft wide.

Who owns Dixon RD over Annie Creek Slough?

It is owned by the County Highway Agency.