US Bridges

Road over Cascade Creek

Fair

Lane County, Oregon · No Data Entered · Structure no. 061801000001750

Built
1975
50 years old
Condition
Fair
inspected June 2024
Type
Slab
Prestressed Concrete
Length
48 ft
1 main span
Daily traffic
250
2006 count
Owner
Federal
U.S. Forest Service

About this bridge

Road over Cascade Creek is a prestressed concrete slab carrying Road over Cascade Creek in Lane County, Oregon. It was built in 1975, so it is 50 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.

It carries about 250 vehicles a day, roughly 30% of them trucks, projected to reach 375 by 2045. The structure is 48 ft (14.6 m) long and 32 ft wide.

CarriesRoad
CrossesCascade Creek
LocationNo Data Entered
RouteFederal Lands Road 19000
StateOregon
Coordinates43.95992, -122.11619
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating69.3 US tons
Inventory rating53.6 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span47 ft (14.3 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2006)
Projected traffic375 by 2045
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Road over Cascade Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Road over Cascade 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 June 2024.

How much traffic does Road over Cascade Creek carry?

About 250 vehicles per day (2006 count), of which roughly 30% are trucks.

How long is Road over Cascade Creek?

The structure is 48 ft (14.6 m) long with a longest span of 47 ft (14.3 m) and a deck 32 ft wide.

Who owns Road over Cascade Creek?

It is owned by the U.S. Forest Service.