US Bridges

Perkins CR RD over Perkins Creek

Fair

Lane County, Oregon · 080 MI SE Cottage Grove · Structure no. 39C245258000036

Built
1983
42 years old
Condition
Fair
inspected September 2024
Type
Slab
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
281
2020 count
Owner
County
County Highway Agency

About this bridge

Perkins CR RD over Perkins Creek is a prestressed concrete slab carrying Perkins CR RD over Perkins Creek in Lane County, Oregon. It was built in 1983, so it is 42 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 281 vehicles a day, roughly 10% of them trucks, projected to reach 321 by 2025. The structure is 38 ft (11.6 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesPerkins CR RD
CrossesPerkins Creek
Location080 MI SE Cottage Grove
RouteCounty Highway C2580
StateOregon
Coordinates43.72818, -122.97035
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 rating64.3 US tons
Inventory rating49.6 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span37 ft (11.3 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic281 (2020)
Projected traffic321 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Perkins CR RD over Perkins Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is Perkins CR RD over Perkins 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 Perkins CR RD over Perkins Creek carry?

About 281 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Perkins CR RD over Perkins Creek?

The structure is 38 ft (11.6 m) long with a longest span of 37 ft (11.3 m) and a deck 28 ft wide.

Who owns Perkins CR RD over Perkins Creek?

It is owned by the County Highway Agency.