US Bridges

Road over Farm Creek

GoodClosed to traffic

Clackamas County, Oregon · S-15 T-7S R-6E Wm · Structure no. 060605000001573

Built
1967
58 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
81 ft
1 main span
Daily traffic
100
Owner
Federal
U.S. Forest Service

About this bridge

Road over Farm Creek is a prestressed concrete stringer/multi-beam or girder carrying Road over Farm Creek in Clackamas County, Oregon. It was built in 1967, so it is 58 years old, older 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. Its operating status is: closed to all traffic.

It carries about 100 vehicles a day, roughly 10% of them trucks, projected to reach 150 by 2045. The structure is 81 ft (24.7 m) long and 31 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesRoad
CrossesFarm Creek
LocationS-15 T-7S R-6E Wm
RouteFederal Lands Road 63000
StateOregon
Coordinates44.96614, -122.05527
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.1 US tons
Inventory rating33.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length81 ft (24.7 m)
Longest span79 ft (24.1 m)
Deck width31 ft (9.6 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (—)
Projected traffic150 by 2045
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Road over Farm Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is Road over Farm 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 July 2024.

How much traffic does Road over Farm Creek carry?

About 100 vehicles per day (latest count), of which roughly 10% are trucks.

How long is Road over Farm Creek?

The structure is 81 ft (24.7 m) long with a longest span of 79 ft (24.1 m) and a deck 31 ft wide.

Who owns Road over Farm Creek?

It is owned by the U.S. Forest Service.