US Bridges

Gosney RD over Coi Main Canal

Fair

Deschutes County, Oregon · 0011 MI S HWY US 20 · Structure no. 09818 D02 01058

Built
1968
57 years old
Condition
Fair
inspected March 2024
Type
Slab
Prestressed Concrete
Length
54 ft
2 main spans
Daily traffic
1,130
2020 count
Owner
County
County Highway Agency

About this bridge

Gosney RD over Coi Main Canal is a prestressed concrete slab carrying Gosney RD over Coi Main Canal in Deschutes County, Oregon. It was built in 1968, so it is 57 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 1,130 vehicles a day, roughly 2% of them trucks, projected to reach 1,185 by 2025. The structure is 54 ft (16.5 m) long and 34 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

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CarriesGosney RD
CrossesCoi Main Canal
Location0011 MI S HWY US 20
RouteCounty Highway 3155
CountyDeschutes County
StateOregon
Coordinates44.03527, -121.19337
Functional classRural Major 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum 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 rating77.2 US tons
Inventory rating59.6 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHS 20
Structure length54 ft (16.5 m)
Longest span26 ft (7.9 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,130 (2020)
Projected traffic1,185 by 2025
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Gosney RD over Coi Main Canal built?

It was built in 1968, making it 57 years old in 2025.

What condition is Gosney RD over Coi Main 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 Gosney RD over Coi Main Canal carry?

About 1,130 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Gosney RD over Coi Main Canal?

The structure is 54 ft (16.5 m) long with a longest span of 26 ft (7.9 m) and a deck 34 ft wide.

Who owns Gosney RD over Coi Main Canal?

It is owned by the County Highway Agency.