US Bridges

US101 (hwy 9) over Cummins Creek

FairPosted for load

Lane County, Oregon · 00.8 MI S Linc-Lane CO LN · Structure no. 01182 009 16844

Built
1931
94 years old
Condition
Fair
inspected July 2023
Type
Arch - Deck
Concrete
Length
185 ft
1 main span
Daily traffic
2,862
2022 count
Owner
State
State Highway Agency

About this bridge

US101 (hwy 9) over Cummins Creek is a concrete arch - deck carrying US101 (hwy 9) over Cummins Creek in Lane County, Oregon. It was built in 1931, 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 2,862 vehicles a day, roughly 8% of them trucks, projected to reach 3,600 by 2042. The structure is 185 ft (56.4 m) long and 36 ft wide. If it were closed, the detour would be 81.4 mi (131 km).

Location

Open in Google Maps
CarriesUS101 (hwy 9)
CrossesCummins Creek
Location00.8 MI S Linc-Lane CO LN
RouteU.S. Route 101
CountyLane County
StateOregon
Coordinates44.26548, -124.10689
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.7 US tons
Inventory rating24.7 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadH 15
Structure length185 ft (56.4 m)
Longest span115 ft (35.1 m)
Deck width36 ft (11.1 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,862 (2022)
Projected traffic3,600 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 statusEligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$948,000
NavigationNo navigation control on waterway

Frequently asked questions

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

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

What condition is US101 (hwy 9) over Cummins 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 Cummins Creek carry?

About 2,862 vehicles per day (2022 count), of which roughly 8% are trucks.

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

The structure is 185 ft (56.4 m) long with a longest span of 115 ft (35.1 m) and a deck 36 ft wide.

Who owns US101 (hwy 9) over Cummins Creek?

It is owned by the State Highway Agency.