US Bridges

County RD 51 over Doerner Creek

Fair

Douglas County, Oregon · 2.7 MI SW of Melrose · Structure no. 19C240 51 268

Built
1969
56 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
22 ft
1 main span
Daily traffic
1,000
2020 count
Owner
County
County Highway Agency

About this bridge

County RD 51 over Doerner Creek is a steel stringer/multi-beam or girder carrying County RD 51 over Doerner Creek in Douglas County, Oregon. It was built in 1969, so it is 56 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 1,000 vehicles a day, roughly 5% of them trucks, projected to reach 1,130 by 2025. The structure is 22 ft (6.7 m) long and 32 ft wide. If it were closed, the detour would be 10.6 mi (17 km).

Location

Open in Google Maps
CarriesCounty RD 51
CrossesDoerner Creek
Location2.7 MI SW of Melrose
RouteCounty Highway 0A397
CountyDouglas County
StateOregon
Coordinates43.23264, -123.49797
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.1 US tons
Inventory rating28.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span22 ft (6.7 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2020)
Projected traffic1,130 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed10.6 mi (17 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 51 over Doerner Creek built?

It was built in 1969, making it 56 years old in 2025.

What condition is County RD 51 over Doerner 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 April 2023.

How much traffic does County RD 51 over Doerner Creek carry?

About 1,000 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is County RD 51 over Doerner Creek?

The structure is 22 ft (6.7 m) long with a longest span of 22 ft (6.7 m) and a deck 32 ft wide.

Who owns County RD 51 over Doerner Creek?

It is owned by the County Highway Agency.