US Bridges

US 26 (hwy 041) over Mill Creek

Good

Crook County, Oregon · 088 MI E Prineville · Structure no. 18551 041 02818

Built
1999
26 years old
Condition
Good
inspected July 2023
Type
Slab
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
1,212
2022 count
Owner
State
State Highway Agency

About this bridge

US 26 (hwy 041) over Mill Creek is a prestressed concrete slab carrying US 26 (hwy 041) over Mill Creek in Crook County, Oregon. It was built in 1999, so it is 26 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 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 1,212 vehicles a day, roughly 28% of them trucks, projected to reach 1,500 by 2042. The structure is 70 ft (21.3 m) long and 44 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

CarriesUS 26 (hwy 041)
CrossesMill Creek
Location088 MI E Prineville
RouteU.S. Route 26
StateOregon
Coordinates44.31804, -120.6652
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.4 US tons
Inventory rating46.4 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length70 ft (21.3 m)
Longest span69 ft (21 m)
Deck width44 ft (13.4 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,212 (2022)
Projected traffic1,500 by 2042
Trucks28%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 km)
TollOn a free road
National Highway SystemYes

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 041) over Mill Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is US 26 (hwy 041) over Mill 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 July 2023.

How much traffic does US 26 (hwy 041) over Mill Creek carry?

About 1,212 vehicles per day (2022 count), of which roughly 28% are trucks.

How long is US 26 (hwy 041) over Mill Creek?

The structure is 70 ft (21.3 m) long with a longest span of 69 ft (21 m) and a deck 44 ft wide.

Who owns US 26 (hwy 041) over Mill Creek?

It is owned by the State Highway Agency.