US Bridges

Dug Bar Road over Cow Creek

PoorPosted for load

Wallowa County, Oregon · MP 13.99 RD 4260 · Structure no. 21700 000 01399

Built
1951
74 years old, rebuilt 2008
Condition
Poor
inspected September 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
26 ft
1 main span
Daily traffic
103
2020 count
Owner
County
County Highway Agency

About this bridge

Dug Bar Road over Cow Creek is a wood or timber stringer/multi-beam or girder carrying Dug Bar Road over Cow Creek in Wallowa County, Oregon. It was built in 1951 and reconstructed in 2008, so it is 74 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 103 vehicles a day, projected to reach 119 by 2025. The structure is 26 ft (7.9 m) long and 16 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesDug Bar Road
CrossesCow Creek
LocationMP 13.99 RD 4260
RouteCounty Highway 0
StateOregon
Coordinates45.76792, -116.74344
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating17.2 US tons
Inventory rating13.2 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span24 ft (7.3 m)
Deck width16 ft (4.8 m)
Roadway width13 ft (4.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic103 (2020)
Projected traffic119 by 2025
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Dug Bar Road over Cow Creek built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 2008.

What condition is Dug Bar Road over Cow Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does Dug Bar Road over Cow Creek carry?

About 103 vehicles per day (2020 count).

How long is Dug Bar Road over Cow Creek?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m) and a deck 16 ft wide.

Who owns Dug Bar Road over Cow Creek?

It is owned by the County Highway Agency.