US Bridges

Mill CR RD over Mill Creek

FairPosted for load

Wasco County, Oregon · 3.1 Mi. S. on Mill Crk RD · Structure no. 06565 000 00391

Built
1941
84 years old
Condition
Fair
inspected August 2024
Type
Tee Beam
Concrete
Length
34 ft
1 main span
Daily traffic
715
2020 count
Owner
County
County Highway Agency

About this bridge

Mill CR RD over Mill Creek is a concrete tee beam carrying Mill CR RD over Mill Creek in Wasco County, Oregon. It was built in 1941, so it is 84 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. Its operating status is: posted for load restriction.

It carries about 715 vehicles a day, roughly 20% of them trucks, projected to reach 787 by 2025. The structure is 34 ft (10.4 m) long and 29 ft wide.

CarriesMill CR RD
CrossesMill Creek
Location3.1 Mi. S. on Mill Crk RD
RouteCounty Highway 0
StateOregon
Coordinates45.56789, -121.25797
Functional classRural Minor 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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating19 US tons
Inventory rating14.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length34 ft (10.4 m)
Longest span32 ft (9.8 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic715 (2020)
Projected traffic787 by 2025
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Mill CR RD over Mill Creek built?

It was built in 1941, making it 84 years old in 2025.

What condition is Mill CR RD over Mill Creek 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 August 2024.

How much traffic does Mill CR RD over Mill Creek carry?

About 715 vehicles per day (2020 count), of which roughly 20% are trucks.

How long is Mill CR RD over Mill Creek?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 29 ft wide.

Who owns Mill CR RD over Mill Creek?

It is owned by the County Highway Agency.