US Bridges

13th ST West over Shelton Ditch

Fair

Marion County, Oregon · 13th and Leslie ST · Structure no. 470414000

Built
1988
37 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
206 ft
3 main spans
Daily traffic
13,876
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

13th ST West over Shelton Ditch is a concrete continuous box beam or girders - single or spread carrying 13th ST West over Shelton Ditch in Marion County, Oregon. It was built in 1988, so it is 37 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 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 13,876 vehicles a day, roughly 5% of them trucks, projected to reach 18,483 by 2025. The structure is 206 ft (62.8 m) long and 29 ft wide.

Location

Open in Google Maps
Carries13th ST West
CrossesShelton Ditch
Location13th and Leslie ST
RouteCity Street C0000
CountyMarion County
StateOregon
Coordinates44.93088, -123.02853
Functional classUrban Other Principal 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.8 US tons
Inventory rating32.2 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length206 ft (62.8 m)
Longest span110 ft (33.5 m)
Deck width29 ft (8.9 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,876 (2020)
Projected traffic18,483 by 2025
Trucks5%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was 13th ST West over Shelton Ditch built?

It was built in 1988, making it 37 years old in 2025.

What condition is 13th ST West over Shelton Ditch 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 13th ST West over Shelton Ditch carry?

About 13,876 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is 13th ST West over Shelton Ditch?

The structure is 206 ft (62.8 m) long with a longest span of 110 ft (33.5 m) and a deck 29 ft wide.

Who owns 13th ST West over Shelton Ditch?

It is owned by the City or Municipal Highway Agency.