US Bridges

Oak Patch RD over Amazon Creek

Fair

Lane County, Oregon · W. Eugene - Oak Patch Rd. · Structure no. 40038 000 00000

Built
1973
52 years old
Condition
Fair
inspected May 2023
Type
Slab
Prestressed Concrete
Length
76 ft
3 main spans
Daily traffic
6,885
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Oak Patch RD over Amazon Creek is a prestressed concrete slab carrying Oak Patch RD over Amazon Creek in Lane County, Oregon. It was built in 1973, so it is 52 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 5 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 6,885 vehicles a day, roughly 5% of them trucks, projected to reach 9,592 by 2025. The structure is 76 ft (23.2 m) long and 52 ft wide.

Location

Open in Google Maps
CarriesOak Patch RD
CrossesAmazon Creek
LocationW. Eugene - Oak Patch Rd.
RouteCity Street C0000
CountyLane County
StateOregon
Coordinates44.04607, -123.1354
Functional classUrban Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating29.7 US tons
Inventory rating22.8 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans3
Design loadHS 20
Structure length76 ft (23.2 m)
Longest span35 ft (10.7 m)
Deck width52 ft (15.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,885 (2020)
Projected traffic9,592 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Oak Patch RD over Amazon Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is Oak Patch RD over Amazon 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 May 2023.

How much traffic does Oak Patch RD over Amazon Creek carry?

About 6,885 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Oak Patch RD over Amazon Creek?

The structure is 76 ft (23.2 m) long with a longest span of 35 ft (10.7 m) and a deck 52 ft wide.

Who owns Oak Patch RD over Amazon Creek?

It is owned by the City or Municipal Highway Agency.