US Bridges

Road over Steamboat Creek

Good

Douglas County, Oregon · No Data Entered · Structure no. 061506000001479

Built
1956
69 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
135 ft
3 main spans
Daily traffic
50
2006 count
Owner
Federal
U.S. Forest Service

About this bridge

Road over Steamboat Creek is a concrete continuous stringer/multi-beam or girder carrying Road over Steamboat Creek in Douglas County, Oregon. It was built in 1956, so it is 69 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, projected to reach 75 by 2045. The structure is 135 ft (41.1 m) long and 29 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesRoad
CrossesSteamboat Creek
LocationNo Data Entered
RouteFederal Lands Road 38000
StateOregon
Coordinates43.438, -122.58748
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating45.1 US tons
Inventory rating31.5 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length135 ft (41.1 m)
Longest span70 ft (21.3 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2006)
Projected traffic75 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Road over Steamboat Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is Road over Steamboat Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does Road over Steamboat Creek carry?

About 50 vehicles per day (2006 count).

How long is Road over Steamboat Creek?

The structure is 135 ft (41.1 m) long with a longest span of 70 ft (21.3 m) and a deck 29 ft wide.

Who owns Road over Steamboat Creek?

It is owned by the U.S. Forest Service.