Attachment 3 - Helibase Site Map.pdf

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3234.74

APPROXIMATE RAPPEL TOWER LOCATIONS. REFER TO

ENCL. 1 AND MANUFACTURER DESIGN FOR EXACT SIZE

OF TOWERS. TOWERS SHALL BE FIELD STAKED AND

APPROVED BY COR. 8 CONCRETE FOOTINGS TO BE

INSTALLED ACCORDING TO MANUFACTURER DESIGN.

SITE WORK AREA = 1 ACRE - USFS WILL

CLEAR AND GRADE AREA.

OPTION ITEM: AFTER RAPPEL TOWERS ARE

INSTALLED CONTRACTOR SHALL INSTALL 6"

OF 2" MINUS BASE COURSE AND 3" OF

MINUS SURFACE COURSE AND RE-GRADE.

AGGREGATE SURFACE SHALL BE A TOTAL

OF 9".

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ELECTRICAL TRENCHING, TWO (2) 1" CONDUIT

INSTALL AND BACKFILL FROM STUB UP TO TOWERS.

TWO (2) 30 A LOAD CENTERS TO BE INSTALLED, ONE

FOR EACH TOWER. EACH LOAD CENTER SHALL HAVE

MINIMUM OF TWO BREAKERS. WORK SHALL BE DONE

BY LICENSED ELECTRICIAN IN THE STATE OF

OREGON.

CONTRACTOR SHALL INSTALL CONDUIT, JUNCTION

BOX, ELECTRICAL WIRING AND SUB-PANEL.

CONTRACTOR SHALL INSTALL FAA L810 LIGHT FOR

EACH TOWER AND A POWER RECEPTACLE AT THE

BASE OF THE TOWER.

AIRBASE ACCESS ROAD

AIRBASE ENTRANCE

TRENCHING FOR ELECTRICAL GROUNDING SYSTEM

TO GO AROUND BOTH RAPPEL TOWERS..

CONTRACTOR TO TRENCH AND BACKFILL AFTER

GROUNDING SYSTEM IS INSTALLED. GROUNDING

SYSTEM TO BE DESIGNED BY AN ELECTRICAL

ENGINEER.

STUB UP LOCATION - CONDUIT ENDS AT THIS

LOCATION. CONTRACTOR TO INSTALL #4 COPPER

WIRE FROM TOWERS TO ELECTRICAL ROOM IN MAIN

BUILDING. APPROXIMATELY 400'.

CONTRACTOR TO BEGIN TRENCHING AND INSTALL

EXTENSION OF TWO (2) 1" CONDUIT FROM THIS

LOCATION.

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DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

3/2 8/2

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R06

PACIFIC NORTHWEST REGION

RAPPEL TOWER

SITE WORK

OCHOCO NF

CENTRAL OREGON HELIBASE

SITE MAP

XX/XX/XXXX

X.XXX

X.XXX

X.XXX

X-01 002 100

Feet

0 100 200

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