US Bridges

Marion Hill RD over Marion Creek

FairPosted for load

Marion County, Oregon · 001 West of Marion · Structure no. 47C87 932

Built
1967
58 years old
Condition
Fair
inspected August 2024
Type
Slab
Wood or Timber
Length
41 ft
2 main spans
Daily traffic
362
2020 count
Owner
County
County Highway Agency

About this bridge

Marion Hill RD over Marion Creek is a wood or timber slab carrying Marion Hill RD over Marion Creek in Marion County, Oregon. It was built in 1967, so it is 58 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 362 vehicles a day, roughly 5% of them trucks, projected to reach 404 by 2025. The structure is 41 ft (12.5 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesMarion Hill RD
CrossesMarion Creek
Location001 West of Marion
RouteCounty Highway C0932
StateOregon
Coordinates44.74852, -122.94247
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 alignment8: Equal to present desirable criteria
Operating rating26.1 US tons
Inventory rating20 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadH 20
Structure length41 ft (12.5 m)
Longest span20 ft (6.1 m)
Deck width24 ft (7.4 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic362 (2020)
Projected traffic404 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 Marion Hill RD over Marion Creek built?

It was built in 1967, making it 58 years old in 2025.

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

About 362 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Marion Hill RD over Marion Creek?

The structure is 41 ft (12.5 m) long with a longest span of 20 ft (6.1 m) and a deck 24 ft wide.

Who owns Marion Hill RD over Marion Creek?

It is owned by the County Highway Agency.