US Bridges

Greenhill Road over A-1 Channel

Good

Lane County, Oregon · E of Airport New RD Align · Structure no. 39C399427000135

Built
2000
25 years old
Condition
Good
inspected July 2024
Type
Slab
Prestressed Concrete
Length
74 ft
1 main span
Daily traffic
3,259
2020 count
Owner
County
County Highway Agency

About this bridge

Greenhill Road over A-1 Channel is a prestressed concrete slab carrying Greenhill Road over A-1 Channel in Lane County, Oregon. It was built in 2000, so it is 25 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 3,259 vehicles a day, roughly 3% of them trucks, projected to reach 3,817 by 2025. The structure is 74 ft (22.6 m) long and 40 ft wide. If it were closed, the detour would be 20.5 mi (33 km).

CarriesGreenhill Road
CrossesA-1 Channel
LocationE of Airport New RD Align
RouteCounty Highway A0451
StateOregon
Coordinates44.13308, -123.2003
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating73 US tons
Inventory rating44 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length74 ft (22.6 m)
Longest span72 ft (21.9 m)
Deck width40 ft (12.2 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,259 (2020)
Projected traffic3,817 by 2025
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed20.5 mi (33 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 Greenhill Road over A-1 Channel built?

It was built in 2000, making it 25 years old in 2025.

What condition is Greenhill Road over A-1 Channel 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 July 2024.

How much traffic does Greenhill Road over A-1 Channel carry?

About 3,259 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is Greenhill Road over A-1 Channel?

The structure is 74 ft (22.6 m) long with a longest span of 72 ft (21.9 m) and a deck 40 ft wide.

Who owns Greenhill Road over A-1 Channel?

It is owned by the County Highway Agency.