US Bridges

US101(HWY009) over Smith River

Fair

Douglas County, Oregon · 01.1 MI N HWY 045 JCT · Structure no. 18175 009 21046

Built
1999
26 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
1,640 ft
14 main spans
Daily traffic
6,338
2022 count
Owner
State
State Highway Agency

About this bridge

US101(HWY009) over Smith River is a prestressed concrete continuous stringer/multi-beam or girder carrying US101(HWY009) over Smith River in Douglas County, Oregon. It was built in 1999, so it is 26 years old, younger 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 6 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 6,338 vehicles a day, roughly 16% of them trucks, projected to reach 6,400 by 2042. The structure is 1,640 ft (500 m) long and 46 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesUS101(HWY009)
CrossesSmith River
Location01.1 MI N HWY 045 JCT
RouteU.S. Route 101
CountyDouglas County
StateOregon
Coordinates43.7183, -124.1006
Functional classRural Principal Arterial - Other

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating31.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans14
Design loadHS 25 or greater
Structure length1,640 ft (500 m)
Longest span118 ft (36 m)
Deck width46 ft (14 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,338 (2022)
Projected traffic6,400 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was US101(HWY009) over Smith River built?

It was built in 1999, making it 26 years old in 2025.

What condition is US101(HWY009) over Smith River 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 May 2023.

How much traffic does US101(HWY009) over Smith River carry?

About 6,338 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is US101(HWY009) over Smith River?

The structure is 1,640 ft (500 m) long with a longest span of 118 ft (36 m) and a deck 46 ft wide.

Who owns US101(HWY009) over Smith River?

It is owned by the State Highway Agency.