US Bridges

US 26 (hwy 360) over Mc Kay Creek

Good

Crook County, Oregon · 225 MI No of Prineville · Structure no. 02745A360 02371

Built
1985
40 years old
Condition
Good
inspected November 2024
Type
Slab
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
3,574
2022 count
Owner
State
State Highway Agency

About this bridge

US 26 (hwy 360) over Mc Kay Creek is a prestressed concrete slab carrying US 26 (hwy 360) over Mc Kay Creek in Crook County, Oregon. It was built in 1985, so it is 40 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,574 vehicles a day, roughly 24% of them trucks, projected to reach 3,800 by 2042. The structure is 70 ft (21.3 m) long and 40 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesUS 26 (hwy 360)
CrossesMc Kay Creek
Location225 MI No of Prineville
RouteState Highway 26
CountyCrook County
StateOregon
Coordinates44.33027, -120.89316
Functional classRural Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 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 rating39.2 US tons
Inventory rating30.3 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length70 ft (21.3 m)
Longest span70 ft (21.3 m)
Deck width40 ft (12.2 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,574 (2022)
Projected traffic3,800 by 2042
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 26 (hwy 360) over Mc Kay Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is US 26 (hwy 360) over Mc Kay Creek 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 November 2024.

How much traffic does US 26 (hwy 360) over Mc Kay Creek carry?

About 3,574 vehicles per day (2022 count), of which roughly 24% are trucks.

How long is US 26 (hwy 360) over Mc Kay Creek?

The structure is 70 ft (21.3 m) long with a longest span of 70 ft (21.3 m) and a deck 40 ft wide.

Who owns US 26 (hwy 360) over Mc Kay Creek?

It is owned by the State Highway Agency.