US Bridges

US101 (hwy 9) over Cape Creek

FairPosted for load

Lane County, Oregon · 10.7 MI N Linc-Lane CO LN · Structure no. 01113 009 17835

Built
1931
94 years old, rebuilt 1991
Condition
Fair
inspected July 2023
Type
Arch - Deck
Concrete
Length
649 ft
1 main span
Daily traffic
3,187
2022 count
Owner
State
State Highway Agency

About this bridge

US101 (hwy 9) over Cape Creek is a concrete arch - deck carrying US101 (hwy 9) over Cape Creek in Lane County, Oregon. It was built in 1931 and reconstructed in 1991, so it is 94 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 6 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 other load-capacity restriction.

It carries about 3,187 vehicles a day, roughly 8% of them trucks, projected to reach 4,500 by 2042. The structure is 649 ft (197.8 m) long and 36 ft wide. If it were closed, the detour would be 81.4 mi (131 km).

Location

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CarriesUS101 (hwy 9)
CrossesCape Creek
Location10.7 MI N Linc-Lane CO LN
RouteU.S. Route 101
CountyLane County
StateOregon
Coordinates44.13354, -124.12187
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating23.9 US tons
Inventory rating18.5 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1 (+13 approach)
Design loadH 15
Structure length649 ft (197.8 m)
Longest span220 ft (67.1 m)
Deck width36 ft (11.1 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,187 (2022)
Projected traffic4,500 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed81.4 mi (131 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 statusListed on the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$3.3 million
NavigationNo navigation control on waterway

Frequently asked questions

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

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1991.

What condition is US101 (hwy 9) over Cape 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 July 2023.

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

About 3,187 vehicles per day (2022 count), of which roughly 8% are trucks.

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

The structure is 649 ft (197.8 m) long with a longest span of 220 ft (67.1 m) and a deck 36 ft wide.

Who owns US101 (hwy 9) over Cape Creek?

It is owned by the State Highway Agency.