US Bridges

Hoffman Road over N Fork Ash Creek

Good

Polk County, Oregon · 002 E State HWY 99W · Structure no. 53C011084600062

Built
1982
43 years old
Condition
Good
inspected August 2024
Type
Slab
Prestressed Concrete
Length
54 ft
1 main span
Daily traffic
3,643
2020 count
Owner
County
County Highway Agency

About this bridge

Hoffman Road over N Fork Ash Creek is a prestressed concrete slab carrying Hoffman Road over N Fork Ash Creek in Polk County, Oregon. It was built in 1982, so it is 43 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 3,643 vehicles a day, roughly 10% of them trucks, projected to reach 5,245 by 2040. The structure is 54 ft (16.5 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesHoffman Road
CrossesN Fork Ash Creek
Location002 E State HWY 99W
RouteCounty Highway 0
StateOregon
Coordinates44.86457, -123.2258
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 protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating45.3 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length54 ft (16.5 m)
Longest span53 ft (16.2 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,643 (2020)
Projected traffic5,245 by 2040
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Hoffman Road over N Fork Ash Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is Hoffman Road over N 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 Hoffman Road over N Fork Ash Creek carry?

About 3,643 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Hoffman Road over N Fork Ash Creek?

The structure is 54 ft (16.5 m) long with a longest span of 53 ft (16.2 m) and a deck 32 ft wide.

Who owns Hoffman Road over N Fork Ash Creek?

It is owned by the County Highway Agency.