rocky i bridge installation park butte trail june 2005

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