US Bridges

Park Road over South Fork Silver Creek

Fair

Marion County, Oregon · 0040 MI from Park Ent · Structure no. 72P35 163 02547

Built
1985
40 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
32 ft
1 main span
Daily traffic
247
2010 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

Park Road over South Fork Silver Creek is a wood or timber stringer/multi-beam or girder carrying Park Road over South Fork Silver Creek in Marion County, Oregon. It was built in 1985, so it is 40 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 6 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 247 vehicles a day, roughly 1% of them trucks, projected to reach 338 by 2030. The structure is 32 ft (9.8 m) long and 32 ft wide.

CarriesPark Road
CrossesSouth Fork Silver Creek
Location0040 MI from Park Ent
StateOregon
Coordinates44.86833, -122.64889
Functional classRural Local

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.9 US tons
Inventory rating21.4 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 15
Structure length32 ft (9.8 m)
Longest span32 ft (9.8 m)
Deck width32 ft (9.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic247 (2010)
Projected traffic338 by 2030
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$164,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Park Road over South Fork Silver Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Park Road over South Fork Silver 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 November 2023.

How much traffic does Park Road over South Fork Silver Creek carry?

About 247 vehicles per day (2010 count), of which roughly 1% are trucks.

How long is Park Road over South Fork Silver Creek?

The structure is 32 ft (9.8 m) long with a longest span of 32 ft (9.8 m) and a deck 32 ft wide.

Who owns Park Road over South Fork Silver Creek?

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