US Bridges

County RD 120 over Barnes Butte Canal

Good

Crook County, Oregon · 004 MI E Mckay RD Int · Structure no. 07C22 120 00436

Built
1961
64 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
41 ft
2 main spans
Daily traffic
520
2020 count
Owner
County
County Highway Agency

About this bridge

County RD 120 over Barnes Butte Canal is a wood or timber stringer/multi-beam or girder carrying County RD 120 over Barnes Butte Canal in Crook County, Oregon. It was built in 1961, so it is 64 years old, older 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 520 vehicles a day, roughly 5% of them trucks, projected to reach 605 by 2025. The structure is 41 ft (12.5 m) long and 24 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesCounty RD 120
CrossesBarnes Butte Canal
Location004 MI E Mckay RD Int
RouteCounty Highway 0B374
StateOregon
Coordinates44.33398, -120.84208
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 inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be 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 rating25 US tons
Inventory rating19.3 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadH 15
Structure length41 ft (12.5 m)
Longest span20 ft (6.1 m)
Deck width24 ft (7.4 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic520 (2020)
Projected traffic605 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 County RD 120 over Barnes Butte Canal built?

It was built in 1961, making it 64 years old in 2025.

What condition is County RD 120 over Barnes Butte 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 December 2024.

How much traffic does County RD 120 over Barnes Butte Canal carry?

About 520 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is County RD 120 over Barnes Butte Canal?

The structure is 41 ft (12.5 m) long with a longest span of 20 ft (6.1 m) and a deck 24 ft wide.

Who owns County RD 120 over Barnes Butte Canal?

It is owned by the County Highway Agency.