US Bridges

US101 (hwy 9) over Spencer Creek

Good

Lincoln County, Oregon · 008 MI S HWY 182 JCT Conn · Structure no. 20198 009 13386

Built
2008
17 years old
Condition
Good
inspected June 2023
Type
Arch - Deck
Prestressed Concrete
Length
210 ft
1 main span
Daily traffic
11,517
2022 count
Owner
State
State Highway Agency

About this bridge

US101 (hwy 9) over Spencer Creek is a prestressed concrete arch - deck carrying US101 (hwy 9) over Spencer Creek in Lincoln County, Oregon. It was built in 2008, so it is 17 years old, younger 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 11,517 vehicles a day, roughly 4% of them trucks, projected to reach 15,500 by 2042. The structure is 210 ft (64 m) long and 51 ft wide. If it were closed, the detour would be 41.6 mi (67 km).

Location

Open in Google Maps
CarriesUS101 (hwy 9)
CrossesSpencer Creek
Location008 MI S HWY 182 JCT Conn
RouteU.S. Route 101
CountyLincoln County
StateOregon
Coordinates44.72943, -124.05732
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 protection7 GoodSome minor problems.
Last inspectionJune 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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating52.1 US tons

Structure

Structure typeArch - Deck
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHL 93
Structure length210 ft (64 m)
Longest span140 ft (42.7 m)
Deck width51 ft (15.6 m)
Roadway width46 ft (14.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,517 (2022)
Projected traffic15,500 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed41.6 mi (67 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US101 (hwy 9) over Spencer Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is US101 (hwy 9) over Spencer 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 June 2023.

How much traffic does US101 (hwy 9) over Spencer Creek carry?

About 11,517 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is US101 (hwy 9) over Spencer Creek?

The structure is 210 ft (64 m) long with a longest span of 140 ft (42.7 m) and a deck 51 ft wide.

Who owns US101 (hwy 9) over Spencer Creek?

It is owned by the State Highway Agency.