US Bridges

Three Creeks Road over Three Creeks Canal

Good

Deschutes County, Oregon · 2.77 MI South of HWY 20 · Structure no. 16060 A14 00277

Built
1973
52 years old
Condition
Good
inspected February 2023
Type
Slab
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
495
2020 count
Owner
County
County Highway Agency

About this bridge

Three Creeks Road over Three Creeks Canal is a prestressed concrete slab carrying Three Creeks Road over Three Creeks Canal in Deschutes County, Oregon. It was built in 1973, so it is 52 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 495 vehicles a day, roughly 7% of them trucks, projected to reach 580 by 2025. The structure is 41 ft (12.5 m) long and 36 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesThree Creeks Road
CrossesThree Creeks Canal
Location2.77 MI South of HWY 20
RouteCounty Highway 1110
StateOregon
Coordinates44.25283, -121.54829
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.1 US tons
Inventory rating28.5 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length41 ft (12.5 m)
Longest span38 ft (11.6 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic495 (2020)
Projected traffic580 by 2025
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed123.7 mi (199 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 Three Creeks Road over Three Creeks Canal built?

It was built in 1973, making it 52 years old in 2025.

What condition is Three Creeks Road over Three Creeks 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 February 2023.

How much traffic does Three Creeks Road over Three Creeks Canal carry?

About 495 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is Three Creeks Road over Three Creeks Canal?

The structure is 41 ft (12.5 m) long with a longest span of 38 ft (11.6 m) and a deck 36 ft wide.

Who owns Three Creeks Road over Three Creeks Canal?

It is owned by the County Highway Agency.