US Bridges

Turner RD over Mill Creek

Fair

Marion County, Oregon · 600 Ft South of Boone RD · Structure no. 470258000 00320

Built
1957
68 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete Continuous
Length
146 ft
5 main spans
Daily traffic
10,501
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Turner RD over Mill Creek is a concrete continuous slab carrying Turner RD over Mill Creek in Marion County, Oregon. It was built in 1957, so it is 68 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.

It carries about 10,501 vehicles a day, roughly 15% of them trucks, projected to reach 13,443 by 2025. The structure is 146 ft (44.5 m) long and 48 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesTurner RD
CrossesMill Creek
Location600 Ft South of Boone RD
RouteCity Street C0000
StateOregon
Coordinates44.88123, -122.97752
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating10 US tons
Inventory rating7.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length146 ft (44.5 m)
Longest span31 ft (9.4 m)
Deck width48 ft (14.5 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,501 (2020)
Projected traffic13,443 by 2025
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Turner RD over Mill Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is Turner RD 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 2023.

How much traffic does Turner RD over Mill Creek carry?

About 10,501 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is Turner RD over Mill Creek?

The structure is 146 ft (44.5 m) long with a longest span of 31 ft (9.4 m) and a deck 48 ft wide.

Who owns Turner RD over Mill Creek?

It is owned by the City or Municipal Highway Agency.