US Bridges

Winslow Road over Milk Creek

FairPosted for load

Clackamas County, Oregon · 00.5 MI N or HWY 211 · Structure no. 06609 000

Built
1965
60 years old, rebuilt 1989
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
92 ft
1 main span
Daily traffic
44
2020 count
Owner
County
County Highway Agency

About this bridge

Winslow Road over Milk Creek is a steel stringer/multi-beam or girder carrying Winslow Road over Milk Creek in Clackamas County, Oregon. It was built in 1965 and reconstructed in 1989, so it is 60 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 5 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 44 vehicles a day, roughly 1% of them trucks, projected to reach 49 by 2025. The structure is 92 ft (28 m) long and 12 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

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CarriesWinslow Road
CrossesMilk Creek
Location00.5 MI N or HWY 211
RouteCounty Highway C1347
CountyClackamas County
StateOregon
Coordinates45.17236, -122.47581
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating14.3 US tons
Inventory rating11 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1 (+3 approach)
Design loadUnknown
Structure length92 ft (28 m)
Longest span33 ft (10.1 m)
Deck width12 ft (3.8 m)
Roadway width11 ft (3.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44 (2020)
Projected traffic49 by 2025
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$471,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Winslow Road over Milk Creek built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1989.

What condition is Winslow Road over Milk 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 April 2024.

How much traffic does Winslow Road over Milk Creek carry?

About 44 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Winslow Road over Milk Creek?

The structure is 92 ft (28 m) long with a longest span of 33 ft (10.1 m) and a deck 12 ft wide.

Who owns Winslow Road over Milk Creek?

It is owned by the County Highway Agency.