US Bridges

Ehlen Road over Mill Creek

Fair

Marion County, Oregon · 001 West of Aurora · Structure no. 17480 009600000

Built
1995
30 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
177 ft
2 main spans
Daily traffic
10,726
2020 count
Owner
County
County Highway Agency

About this bridge

Ehlen Road over Mill Creek is a prestressed concrete stringer/multi-beam or girder carrying Ehlen Road over Mill Creek in Marion County, Oregon. It was built in 1995, so it is 30 years old, younger 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.

It carries about 10,726 vehicles a day, roughly 11% of them trucks, projected to reach 11,959 by 2025. The structure is 177 ft (53.9 m) long and 50 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesEhlen Road
CrossesMill Creek
Location001 West of Aurora
RouteCounty Highway A0600
CountyMarion County
StateOregon
Coordinates45.23334, -122.7571
Functional classRural Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum 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 rating45.7 US tons
Inventory rating35.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length177 ft (53.9 m)
Longest span88 ft (26.8 m)
Deck width50 ft (15.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,726 (2020)
Projected traffic11,959 by 2025
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 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 Ehlen Road over Mill Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is Ehlen Road 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 Ehlen Road over Mill Creek carry?

About 10,726 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is Ehlen Road over Mill Creek?

The structure is 177 ft (53.9 m) long with a longest span of 88 ft (26.8 m) and a deck 50 ft wide.

Who owns Ehlen Road over Mill Creek?

It is owned by the County Highway Agency.