US Bridges

Pleasant Ridge over Pilot Butte Canal

Good

Deschutes County, Oregon · 0.2 Mi. East of HWY 97 · Structure no. 15454AD31 00011

Built
1972
53 years old, rebuilt 1998
Condition
Good
inspected March 2024
Type
Slab
Prestressed Concrete
Length
56 ft
1 main span
Daily traffic
5,736
2020 count
Owner
County
County Highway Agency

About this bridge

Pleasant Ridge over Pilot Butte Canal is a prestressed concrete slab carrying Pleasant Ridge over Pilot Butte Canal in Deschutes County, Oregon. It was built in 1972 and reconstructed in 1998, so it is 53 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 5,736 vehicles a day, roughly 2% of them trucks, projected to reach 6,486 by 2025. The structure is 56 ft (17.1 m) long and 48 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesPleasant Ridge
CrossesPilot Butte Canal
Location0.2 Mi. East of HWY 97
RouteCounty Highway 3181
StateOregon
Coordinates44.1598, -121.25692
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 protection8 Very GoodNo problems noted.
Last inspectionMarch 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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating46.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length56 ft (17.1 m)
Longest span55 ft (16.8 m)
Deck width48 ft (14.6 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,736 (2020)
Projected traffic6,486 by 2025
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Pleasant Ridge over Pilot Butte Canal built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 1998.

What condition is Pleasant Ridge over Pilot 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 March 2024.

How much traffic does Pleasant Ridge over Pilot Butte Canal carry?

About 5,736 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Pleasant Ridge over Pilot Butte Canal?

The structure is 56 ft (17.1 m) long with a longest span of 55 ft (16.8 m) and a deck 48 ft wide.

Who owns Pleasant Ridge over Pilot Butte Canal?

It is owned by the County Highway Agency.