US Bridges

Sevenmile Hill RD over Sevenmile Creek

FairPosted for load

Wasco County, Oregon · 1.4 MI N of Chenoweth RD · Structure no. 65C23 000 00940

Built
1940
85 years old, rebuilt 1977
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
26 ft
1 main span
Daily traffic
608
2020 count
Owner
County
County Highway Agency

About this bridge

Sevenmile Hill RD over Sevenmile Creek is a wood or timber stringer/multi-beam or girder carrying Sevenmile Hill RD over Sevenmile Creek in Wasco County, Oregon. It was built in 1940 and reconstructed in 1977, so it is 85 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 608 vehicles a day, roughly 10% of them trucks, projected to reach 698 by 2025. The structure is 26 ft (7.9 m) long and 27 ft wide.

CarriesSevenmile Hill RD
CrossesSevenmile Creek
Location1.4 MI N of Chenoweth RD
RouteCounty Highway 0
StateOregon
Coordinates45.6373, -121.2558
Functional classRural Major 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
ScourUnknown foundation; not evaluated for scour
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating21.4 US tons
Inventory rating16.4 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 15
Structure length26 ft (7.9 m)
Longest span23 ft (7 m)
Deck width27 ft (8.1 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic608 (2020)
Projected traffic698 by 2025
Trucks10%
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 Sevenmile Hill RD over Sevenmile Creek built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1977.

What condition is Sevenmile Hill RD over Sevenmile 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 Sevenmile Hill RD over Sevenmile Creek carry?

About 608 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Sevenmile Hill RD over Sevenmile Creek?

The structure is 26 ft (7.9 m) long with a longest span of 23 ft (7 m) and a deck 27 ft wide.

Who owns Sevenmile Hill RD over Sevenmile Creek?

It is owned by the County Highway Agency.