US Bridges

County RD 389 over Elk Creek

Fair

Douglas County, Oregon · In Drain · Structure no. 19C457 389 009

Built
1967
58 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
260 ft
3 main spans
Daily traffic
6,041
2020 count
Owner
County
County Highway Agency

About this bridge

County RD 389 over Elk Creek is a prestressed concrete box beam or girders - multiple carrying County RD 389 over Elk Creek in Douglas County, Oregon. It was built in 1967, so it is 58 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 6,041 vehicles a day, roughly 10% of them trucks, projected to reach 6,791 by 2025. The structure is 260 ft (79.2 m) long and 53 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty RD 389
CrossesElk Creek
LocationIn Drain
RouteCounty Highway 0A413
CountyDouglas County
StateOregon
Coordinates43.66158, -123.31822
Functional classRural Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 rating92.2 US tons
Inventory rating71.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans3
Design loadHS 20
Structure length260 ft (79.2 m)
Longest span86 ft (26.2 m)
Deck width53 ft (16.2 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,041 (2020)
Projected traffic6,791 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 County RD 389 over Elk Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is County RD 389 over Elk Creek 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 October 2024.

How much traffic does County RD 389 over Elk Creek carry?

About 6,041 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is County RD 389 over Elk Creek?

The structure is 260 ft (79.2 m) long with a longest span of 86 ft (26.2 m) and a deck 53 ft wide.

Who owns County RD 389 over Elk Creek?

It is owned by the County Highway Agency.