rocky i bridge installation park butte trail june 2005
TRANSCRIPT
Rocky I BridgeRocky I BridgeInstallationInstallation
Park Butte TrailPark Butte Trail
June 2005June 2005
The PlanThe Plan
The Park Butte Trail has over 8000 visitors of The Park Butte Trail has over 8000 visitors of all ages from June through September.all ages from June through September.
Project Objectives: Project Objectives: 1. Provide a safe bridge over Rocky Creek during the peak 1. Provide a safe bridge over Rocky Creek during the peak
summer season.summer season. 2. Bridge to be removed for the off-season to avoid heavy 2. Bridge to be removed for the off-season to avoid heavy
snow pack, uncertain stream flows, and flood events.snow pack, uncertain stream flows, and flood events. 3. Bridge component weights to be within the capability of 3. Bridge component weights to be within the capability of
a type 3 helicopter (Hughes 500), approx. 1000 lbs.a type 3 helicopter (Hughes 500), approx. 1000 lbs. 4. Annual bridge flight time, assembly, disassembly and 4. Annual bridge flight time, assembly, disassembly and
storage can be accomplished in two days or less.storage can be accomplished in two days or less.
Original Rocky 1 BridgeOriginal Rocky 1 Bridge As – Built (1989) As – Built (1989)
Original Rocky I BridgeOriginal Rocky I Bridge Destroyed October 2003 Destroyed October 2003
Former Channel Former Channel Old Bridge RemnantsOld Bridge Remnants
Rocky Creek Rocky Creek
Old Channel New Channel
WTA Executive BoardWTA Executive BoardCrossing Rocky CreekCrossing Rocky Creek
20042004
New Bridge LocationNew Bridge Location300’ West of Original Bridge Site300’ West of Original Bridge Site
Do the parts fit together?Do the parts fit together?Practice AssemblyPractice Assembly
Fiberglass Structural ComponentsFiberglass Structural Components
Rocky I Girders Rocky I Girders Placed by HelicopterPlaced by Helicopter
Rocky IRocky ILooking NorthwestLooking Northwest
Rocky I Rocky I CompletedCompleted
“Don’t try to fool Mother Nature”
Rocky Creek Bridge Rocky Creek Bridge
Made possible with a grant from:Made possible with a grant from:
The Spring Family Trust For TrailsThe Spring Family Trust For Trails