Rocky I Bridge
Installation
Park Butte Trail
June 2005
The Plan
The Park Butte Trail has over 8000 visitors of
all ages from June through September.
Project Objectives:
 1. Provide a safe bridge over Rocky Creek during the peak
summer season.
 2. Bridge to be removed for the off-season to avoid heavy
snow pack, uncertain stream flows, and flood events.
 3. Bridge component weights to be within the capability of
a type 3 helicopter (Hughes 500), approx. 1000 lbs.
 4. Annual bridge flight time, assembly, disassembly and
storage can be accomplished in two days or less.
Original Rocky 1 Bridge
As – Built (1989)
Original Rocky I Bridge
Destroyed October 2003
Former Channel
Old Bridge Remnants
Rocky Creek
Old Channel
New Channel
WTA Executive Board
Crossing Rocky Creek
2004
New Bridge Location
300’ West of Original Bridge Site
Do the parts fit together?
Practice Assembly
Fiberglass Structural Components
Rocky I Girders
Placed by Helicopter
Rocky I
Looking Northwest
Rocky I
Completed
“Don’t try to fool Mother Nature”
Rocky Creek Bridge
Made possible with a grant from:
The Spring Family Trust For Trails