US Bridges

Greenhill Road over Amazon Canal

Fair

Lane County, Oregon · 020MI W Beltlne Royal JCT · Structure no. 039C50427000145

Built
1973
52 years old
Condition
Fair
inspected July 2024
Type
Slab
Prestressed Concrete
Length
141 ft
5 main spans
Daily traffic
4,535
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Greenhill Road over Amazon Canal is a prestressed concrete slab carrying Greenhill Road over Amazon Canal 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 4,535 vehicles a day, roughly 10% of them trucks, projected to reach 4,760 by 2025. The structure is 141 ft (43 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesGreenhill Road
CrossesAmazon Canal
Location020MI W Beltlne Royal JCT
RouteCounty Highway A0451
CountyLane County
StateOregon
Coordinates44.07252, -123.20843
Functional classUrban Minor Arterial

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.7 US tons
Inventory rating24.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans5
Design loadHS 20
Structure length141 ft (43 m)
Longest span28 ft (8.5 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,535 (2020)
Projected traffic4,760 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Greenhill Road over Amazon Canal built?

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

What condition is Greenhill Road over Amazon Canal 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 July 2024.

How much traffic does Greenhill Road over Amazon Canal carry?

About 4,535 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Greenhill Road over Amazon Canal?

The structure is 141 ft (43 m) long with a longest span of 28 ft (8.5 m) and a deck 32 ft wide.

Who owns Greenhill Road over Amazon Canal?

It is owned by the City or Municipal Highway Agency.