US Bridges

US101(HWY009) over Tahkenitch Creek

Good

Douglas County, Oregon · 08.9 MI N HWY 045 JCT · Structure no. 01602 009 20272

Built
1929
96 years old
Condition
Good
inspected May 2023
Type
Tee Beam
Concrete Continuous
Length
205 ft
5 main spans
Daily traffic
4,305
2022 count
Owner
State
State Highway Agency

About this bridge

US101(HWY009) over Tahkenitch Creek is a concrete continuous tee beam carrying US101(HWY009) over Tahkenitch Creek in Douglas County, Oregon. It was built in 1929, so it is 96 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 4,305 vehicles a day, roughly 13% of them trucks, projected to reach 4,700 by 2042. The structure is 205 ft (62.5 m) long and 39 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesUS101(HWY009)
CrossesTahkenitch Creek
Location08.9 MI N HWY 045 JCT
RouteU.S. Route 101
CountyDouglas County
StateOregon
Coordinates43.80706, -124.15259
Functional classRural Principal Arterial - Other

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 protection8 Very GoodNo problems noted.
Last inspectionMay 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating30.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length205 ft (62.5 m)
Longest span45 ft (13.7 m)
Deck width39 ft (12 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,305 (2022)
Projected traffic4,700 by 2042
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was US101(HWY009) over Tahkenitch Creek built?

It was built in 1929, making it 96 years old in 2025.

What condition is US101(HWY009) over Tahkenitch 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 May 2023.

How much traffic does US101(HWY009) over Tahkenitch Creek carry?

About 4,305 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is US101(HWY009) over Tahkenitch Creek?

The structure is 205 ft (62.5 m) long with a longest span of 45 ft (13.7 m) and a deck 39 ft wide.

Who owns US101(HWY009) over Tahkenitch Creek?

It is owned by the State Highway Agency.