US Bridges

Adams DR over Irrigation Canal

Good

Jefferson County, Oregon · 0.7 MI N of Dogwood Lane · Structure no. 20075 679 00211

Built
2005
20 years old
Condition
Good
inspected November 2024
Type
Slab
Prestressed Concrete
Length
43 ft
1 main span
Daily traffic
562
2020 count
Owner
County
County Highway Agency

About this bridge

Adams DR over Irrigation Canal is a prestressed concrete slab carrying Adams DR over Irrigation Canal in Jefferson County, Oregon. It was built in 2005, so it is 20 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 562 vehicles a day, roughly 5% of them trucks, projected to reach 640 by 2025. The structure is 43 ft (13.1 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesAdams DR
CrossesIrrigation Canal
Location0.7 MI N of Dogwood Lane
RouteCounty Highway 0
StateOregon
Coordinates44.68957, -121.12801
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable 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 rating62.2 US tons
Inventory rating47.8 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckCorrugated steel
Main spans1
Design loadH 20
Structure length43 ft (13.1 m)
Longest span42 ft (12.8 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic562 (2020)
Projected traffic640 by 2025
Trucks5%
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

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 Adams DR over Irrigation Canal built?

It was built in 2005, making it 20 years old in 2025.

What condition is Adams DR over Irrigation Canal 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 November 2024.

How much traffic does Adams DR over Irrigation Canal carry?

About 562 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Adams DR over Irrigation Canal?

The structure is 43 ft (13.1 m) long with a longest span of 42 ft (12.8 m) and a deck 29 ft wide.

Who owns Adams DR over Irrigation Canal?

It is owned by the County Highway Agency.