US Bridges

Green Drive over Irrigation Canal

Fair

Jefferson County, Oregon · 0.4 MI S of Monroe Lane · Structure no. 31C61 000

Built
1947
78 years old, rebuilt 1995
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
25 ft
1 main span
Daily traffic
144
2020 count
Owner
County
County Highway Agency

About this bridge

Green Drive over Irrigation Canal is a wood or timber stringer/multi-beam or girder carrying Green Drive over Irrigation Canal in Jefferson County, Oregon. It was built in 1947 and reconstructed in 1995, so it is 78 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 6 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 144 vehicles a day, roughly 10% of them trucks, projected to reach 159 by 2025. The structure is 25 ft (7.6 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesGreen Drive
CrossesIrrigation Canal
Location0.4 MI S of Monroe Lane
RouteCounty Highway 0
CountyJefferson County
StateOregon
Coordinates44.46018, -121.2496
Functional classRural Local

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.5 US tons
Inventory rating22.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span24 ft (7.3 m)
Deck width30 ft (9.2 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic144 (2020)
Projected traffic159 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

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 Green Drive over Irrigation Canal built?

It was built in 1947, making it 78 years old in 2025. It was reconstructed in 1995.

What condition is Green Drive over Irrigation 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 November 2024.

How much traffic does Green Drive over Irrigation Canal carry?

About 144 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Green Drive over Irrigation Canal?

The structure is 25 ft (7.6 m) long with a longest span of 24 ft (7.3 m) and a deck 30 ft wide.

Who owns Green Drive over Irrigation Canal?

It is owned by the County Highway Agency.