US Bridges

Ash ST over North Fork Ash Creek

Good

Polk County, Oregon · 001 from City Sewage Lagn · Structure no. 18479 000000000

Built
1998
27 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
133 ft
1 main span
Daily traffic
663
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Ash ST over North Fork Ash Creek is a prestressed concrete stringer/multi-beam or girder carrying Ash ST over North Fork Ash Creek in Polk County, Oregon. It was built in 1998, so it is 27 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 663 vehicles a day, roughly 1% of them trucks, projected to reach 1,126 by 2040. The structure is 133 ft (40.6 m) long and 49 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesAsh ST
CrossesNorth Fork Ash Creek
Location001 from City Sewage Lagn
RouteCity Street 0
StateOregon
Coordinates44.85636, -123.18963
Functional classUrban Minor Arterial

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.7 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length133 ft (40.6 m)
Longest span129 ft (39.3 m)
Deck width49 ft (14.8 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic663 (2020)
Projected traffic1,126 by 2040
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ash ST over North Fork Ash Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is Ash ST over North Fork Ash 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 August 2024.

How much traffic does Ash ST over North Fork Ash Creek carry?

About 663 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Ash ST over North Fork Ash Creek?

The structure is 133 ft (40.6 m) long with a longest span of 129 ft (39.3 m) and a deck 49 ft wide.

Who owns Ash ST over North Fork Ash Creek?

It is owned by the City or Municipal Highway Agency.