US Bridges

Ferguson Road over Coi Canal

Fair

Deschutes County, Oregon · 0044 MI East 15th ST · Structure no. 09C47AD13 00230

Built
1976
49 years old
Condition
Fair
inspected March 2024
Type
Slab
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
2,338
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Ferguson Road over Coi Canal is a prestressed concrete slab carrying Ferguson Road over Coi Canal in Deschutes County, Oregon. It was built in 1976, so it is 49 years old, younger 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 2,338 vehicles a day, roughly 2% of them trucks, projected to reach 2,693 by 2025. The structure is 46 ft (14 m) long and 40 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFerguson Road
CrossesCoi Canal
Location0044 MI East 15th ST
RouteCounty Highway 3165
CountyDeschutes County
StateOregon
Coordinates44.02262, -121.27766
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.
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 rating35.7 US tons
Inventory rating27.4 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length46 ft (14 m)
Longest span45 ft (13.7 m)
Deck width40 ft (12.2 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,338 (2020)
Projected traffic2,693 by 2025
Trucks2%
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

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 Ferguson Road over Coi Canal built?

It was built in 1976, making it 49 years old in 2025.

What condition is Ferguson Road over Coi 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 Ferguson Road over Coi Canal carry?

About 2,338 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Ferguson Road over Coi Canal?

The structure is 46 ft (14 m) long with a longest span of 45 ft (13.7 m) and a deck 40 ft wide.

Who owns Ferguson Road over Coi Canal?

It is owned by the City or Municipal Highway Agency.