US Bridges

Park Road over West Fork Dairy Ck

Good

Washington County, Oregon · Stub Stewart · Structure no. 19924 000 00016

Built
2004
21 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
202 ft
1 main span
Daily traffic
75
2010 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

Park Road over West Fork Dairy Ck is a steel stringer/multi-beam or girder carrying Park Road over West Fork Dairy Ck in Washington County, Oregon. It was built in 2004, so it is 21 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 75 vehicles a day, roughly 5% of them trucks, projected to reach 80 by 2030. The structure is 202 ft (61.7 m) long and 33 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesPark Road
CrossesWest Fork Dairy Ck
LocationStub Stewart
RouteState Lands Road 0
StateOregon
Coordinates45.7388, -123.19722
Functional classRural Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating60.4 US tons
Inventory rating46.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length202 ft (61.7 m)
Longest span200 ft (61 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2010)
Projected traffic80 by 2030
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency
Maintained byState Park, Forest, or Reservation 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 Park Road over West Fork Dairy Ck built?

It was built in 2004, making it 21 years old in 2025.

What condition is Park Road over West Fork Dairy Ck 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 October 2023.

How much traffic does Park Road over West Fork Dairy Ck carry?

About 75 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is Park Road over West Fork Dairy Ck?

The structure is 202 ft (61.7 m) long with a longest span of 200 ft (61 m) and a deck 33 ft wide.

Who owns Park Road over West Fork Dairy Ck?

It is owned by the State Park, Forest, or Reservation Agency.