US Bridges

Elkhead Road #7 over Elk Creek

FairPosted for load

Douglas County, Oregon · 4.4 MI E of Yoncalla · Structure no. 19C061000700436

Built
1953
72 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
88 ft
4 main spans
Daily traffic
508
2020 count
Owner
County
County Highway Agency

About this bridge

Elkhead Road #7 over Elk Creek is a steel stringer/multi-beam or girder carrying Elkhead Road #7 over Elk Creek in Douglas County, Oregon. It was built in 1953, so it is 72 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 load restriction.

It carries about 508 vehicles a day, roughly 15% of them trucks, projected to reach 573 by 2025. The structure is 88 ft (26.8 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesElkhead Road #7
CrossesElk Creek
Location4.4 MI E of Yoncalla
RouteCounty Highway C0007
CountyDouglas County
StateOregon
Coordinates43.6009, -123.20799
Functional classRural Minor 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.
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 statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating20 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length88 ft (26.8 m)
Longest span36 ft (11 m)
Deck width23 ft (7 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic508 (2020)
Projected traffic573 by 2025
Trucks15%
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 Elkhead Road #7 over Elk Creek built?

It was built in 1953, making it 72 years old in 2025.

What condition is Elkhead Road #7 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 Elkhead Road #7 over Elk Creek carry?

About 508 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is Elkhead Road #7 over Elk Creek?

The structure is 88 ft (26.8 m) long with a longest span of 36 ft (11 m) and a deck 23 ft wide.

Who owns Elkhead Road #7 over Elk Creek?

It is owned by the County Highway Agency.