US Bridges

Cedar CR RD over Cedar Creek

Fair

Lane County, Oregon · 080MI S Cottage Grove · Structure no. 39C256274500021

Built
1981
44 years old
Condition
Fair
inspected September 2024
Type
Slab
Prestressed Concrete
Length
36 ft
1 main span
Daily traffic
453
2020 count
Owner
County
County Highway Agency

About this bridge

Cedar CR RD over Cedar Creek is a prestressed concrete slab carrying Cedar CR RD over Cedar Creek in Lane County, Oregon. It was built in 1981, so it is 44 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 453 vehicles a day, roughly 10% of them trucks, projected to reach 533 by 2025. The structure is 36 ft (11 m) long and 28 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesCedar CR RD
CrossesCedar Creek
Location080MI S Cottage Grove
RouteCounty Highway C2745
CountyLane County
StateOregon
Coordinates43.68741, -123.08178
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
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 rating70 US tons
Inventory rating37 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length36 ft (11 m)
Longest span35 ft (10.7 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic453 (2020)
Projected traffic533 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Cedar CR RD over Cedar Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Cedar CR RD over Cedar 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 September 2024.

How much traffic does Cedar CR RD over Cedar Creek carry?

About 453 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Cedar CR RD over Cedar Creek?

The structure is 36 ft (11 m) long with a longest span of 35 ft (10.7 m) and a deck 28 ft wide.

Who owns Cedar CR RD over Cedar Creek?

It is owned by the County Highway Agency.