US Bridges

Deadwood Loop Road over Deadwood Creek

FairPosted for load

Lane County, Oregon · 40 MI N HWY 36 @ Deadwood · Structure no. 39C551514500030

Built
1932
93 years old
Condition
Fair
inspected August 2024
Type
Truss - Thru
Wood or Timber
Length
177 ft
1 main span
Daily traffic
15
2020 count
Owner
County
County Highway Agency

About this bridge

Deadwood Loop Road over Deadwood Creek is a wood or timber truss - thru carrying Deadwood Loop Road over Deadwood Creek in Lane County, Oregon. It was built in 1932, so it is 93 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 15 vehicles a day, projected to reach 20 by 2025. The structure is 177 ft (53.9 m) long and 19 ft wide.

Location

Open in Google Maps
CarriesDeadwood Loop Road
CrossesDeadwood Creek
Location40 MI N HWY 36 @ Deadwood
RouteCounty Highway C5145
CountyLane County
StateOregon
Coordinates44.14361, -123.72046
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
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 inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusPosted for load 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 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 rating23 US tons
Inventory rating18 US tons

Structure

Structure typeTruss - Thru
MaterialWood or Timber
DeckWood or timber
Main spans1 (+4 approach)
Design loadH 10
Structure length177 ft (53.9 m)
Longest span105 ft (32 m)
Deck width19 ft (5.8 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deck9 ft (2.7 m)

Traffic and service

Average daily traffic15 (2020)
Projected traffic20 by 2025
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$907,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Deadwood Loop Road over Deadwood Creek built?

It was built in 1932, making it 93 years old in 2025.

What condition is Deadwood Loop Road over Deadwood 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 August 2024.

How much traffic does Deadwood Loop Road over Deadwood Creek carry?

About 15 vehicles per day (2020 count).

How long is Deadwood Loop Road over Deadwood Creek?

The structure is 177 ft (53.9 m) long with a longest span of 105 ft (32 m) and a deck 19 ft wide.

Who owns Deadwood Loop Road over Deadwood Creek?

It is owned by the County Highway Agency.