US Bridges

Acorn Park RD over Amazon Creek

Good

Lane County, Oregon · Eugene @ Acorn Park · Structure no. 40046 000

Built
1980
45 years old
Condition
Good
inspected May 2023
Type
Slab
Prestressed Concrete
Length
86 ft
3 main spans
Daily traffic
4,132
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Acorn Park RD over Amazon Creek is a prestressed concrete slab carrying Acorn Park RD over Amazon Creek in Lane County, Oregon. It was built in 1980, so it is 45 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,132 vehicles a day, roughly 5% of them trucks, projected to reach 4,720 by 2025. The structure is 86 ft (26.2 m) long and 48 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesAcorn Park RD
CrossesAmazon Creek
LocationEugene @ Acorn Park
RouteCity Street C0000
CountyLane County
StateOregon
Coordinates44.0473, -123.1384
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than 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 rating74 US tons
Inventory rating44 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans3
Design loadHS 20
Structure length86 ft (26.2 m)
Longest span30 ft (9.1 m)
Deck width48 ft (14.7 m)
Roadway width37 ft (11.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,132 (2020)
Projected traffic4,720 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
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 Acorn Park RD over Amazon Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is Acorn Park RD over Amazon Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does Acorn Park RD over Amazon Creek carry?

About 4,132 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Acorn Park RD over Amazon Creek?

The structure is 86 ft (26.2 m) long with a longest span of 30 ft (9.1 m) and a deck 48 ft wide.

Who owns Acorn Park RD over Amazon Creek?

It is owned by the City or Municipal Highway Agency.