US Bridges

Deschutes Market over North Unit Canal

Fair

Deschutes County, Oregon · 0025 MI N Butler Market · Structure no. 09C74AD31200450

Built
1974
51 years old
Condition
Fair
inspected March 2024
Type
Slab
Prestressed Concrete
Length
54 ft
2 main spans
Daily traffic
6,266
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Deschutes Market over North Unit Canal is a prestressed concrete slab carrying Deschutes Market over North Unit Canal in Deschutes County, Oregon. It was built in 1974, so it is 51 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 6,266 vehicles a day, roughly 5% of them trucks, projected to reach 7,016 by 2025. The structure is 54 ft (16.5 m) long and 36 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesDeschutes Market
CrossesNorth Unit Canal
Location0025 MI N Butler Market
RouteCounty Highway 3181
StateOregon
Coordinates44.09008, -121.25868
Functional classUrban Collector

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 protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
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 rating67.1 US tons
Inventory rating51.8 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHS 20
Structure length54 ft (16.5 m)
Longest span27 ft (8.2 m)
Deck width36 ft (11 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,266 (2020)
Projected traffic7,016 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Deschutes Market over North Unit Canal built?

It was built in 1974, making it 51 years old in 2025.

What condition is Deschutes Market over North Unit 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 March 2024.

How much traffic does Deschutes Market over North Unit Canal carry?

About 6,266 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Deschutes Market over North Unit Canal?

The structure is 54 ft (16.5 m) long with a longest span of 27 ft (8.2 m) and a deck 36 ft wide.

Who owns Deschutes Market over North Unit Canal?

It is owned by the City or Municipal Highway Agency.