US Bridges

Mulino RD over Milk Creek

Good

Clackamas County, Oregon · 3.0 MI NW of HWY 213 · Structure no. 20147 007 00367

Built
2006
19 years old
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
332 ft
4 main spans
Daily traffic
1,621
2020 count
Owner
County
County Highway Agency

About this bridge

Mulino RD over Milk Creek is a prestressed concrete box beam or girders - multiple carrying Mulino RD over Milk Creek in Clackamas County, Oregon. It was built in 2006, so it is 19 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,621 vehicles a day, roughly 10% of them trucks, projected to reach 1,836 by 2025. The structure is 332 ft (101.2 m) long and 37 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesMulino RD
CrossesMilk Creek
Location3.0 MI NW of HWY 213
RouteCounty Highway 0A612
StateOregon
Coordinates45.23714, -122.63169
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating99 US tons
Inventory rating76.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length332 ft (101.2 m)
Longest span100 ft (30.5 m)
Deck width37 ft (11.2 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,621 (2020)
Projected traffic1,836 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Mulino RD over Milk Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is Mulino RD over Milk 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 April 2023.

How much traffic does Mulino RD over Milk Creek carry?

About 1,621 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Mulino RD over Milk Creek?

The structure is 332 ft (101.2 m) long with a longest span of 100 ft (30.5 m) and a deck 37 ft wide.

Who owns Mulino RD over Milk Creek?

It is owned by the County Highway Agency.