US Bridges

Jeffrsn-Marion HWY over Marion Creek

Good

Marion County, Oregon · 01.0 South of Marion · Structure no. 23245 035 00377

Built
2018
7 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
83 ft
1 main span
Daily traffic
3,245
2020 count
Owner
County
County Highway Agency

About this bridge

Jeffrsn-Marion HWY over Marion Creek is a prestressed concrete box beam or girders - multiple carrying Jeffrsn-Marion HWY over Marion Creek in Marion County, Oregon. It was built in 2018, so it is 7 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 3,245 vehicles a day, roughly 15% of them trucks, projected to reach 3,645 by 2025. The structure is 83 ft (25.3 m) long and 40 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

CarriesJeffrsn-Marion HWY
CrossesMarion Creek
Location01.0 South of Marion
RouteCounty Highway A0566
StateOregon
Coordinates44.73494, -122.94757
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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable 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 rating63.9 US tons
Inventory rating49.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length83 ft (25.3 m)
Longest span83 ft (25.3 m)
Deck width40 ft (12.2 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,245 (2020)
Projected traffic3,645 by 2025
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Jeffrsn-Marion HWY over Marion Creek built?

It was built in 2018, making it 7 years old in 2025.

What condition is Jeffrsn-Marion HWY over Marion 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 August 2024.

How much traffic does Jeffrsn-Marion HWY over Marion Creek carry?

About 3,245 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is Jeffrsn-Marion HWY over Marion Creek?

The structure is 83 ft (25.3 m) long with a longest span of 83 ft (25.3 m) and a deck 40 ft wide.

Who owns Jeffrsn-Marion HWY over Marion Creek?

It is owned by the County Highway Agency.