Maps_and_Drawings.pdf

VICINITY MAP

PRINCE OF WALES ISLAND

PROJECT LOCATION

132°136°138°140°142° 134°

JUNEAU

Craig

132°

KEY MAP

GULF OF ALASKA

56°

58° Sitka

138°

60°

Yakutat

ALAS

KA

142°

62°

C

AN

AD

A

140°

Skagway

136° 134°

56°

54°

Ketchikan

Wrangell

Petersburg

60°

58°

130° 128°

TWIN PEAKS REPEATER SITE

MAINTENANCE

INDEX TO SHEETS

NO. DESCRIPTION

SITE SKETCH

USDA FOREST SERVICE - TONGASS NATIONAL FOREST SH. ofR-10 -

DESIGNED: DATE:

DATE:DRAWN:

REVIEWED: DATE:

DATE: REVISION: BY:

PLOT ON 11"X17" PAPER

TONGASS

ENGINEERING & RECREATION TNFTYP:09/04

TWIN PEAKS REPEATER SITE MAINTENANCE COVER SHEET

THORNE BAY RANGER DISTRICT

MRC 12/8/14

MRC 12/8/14

QS 3/9/15

3/12/15 QS COMMENTS MRC

acad.DWG 1 4

HELIPAD TYPICAL SECTION

COVER SHEET

AERIAL PHOTO AND NOTES

TWIN PEAKS REPEATER SITE

SCALE IN MILES

1 0 1 2

TYPOGRAPHICAL ERROR.

REPLACE "STALEY" WITH

"STANEY".

FOREST SERVICE

AGGREGATE STOCKPILE

ROAD 2050000

MILEPOST 12.96

USDA FOREST SERVICE - TONGASS NATIONAL FOREST SH. ofR-10 -

DESIGNED: DATE:

DATE:DRAWN:

REVIEWED: DATE:

DATE: REVISION: BY:

PLOT ON 11"X17" PAPER

TONGASS

ENGINEERING & RECREATION TNFTYP:09/04

TWIN PEAKS REPEATER SITE MAINTENANCE AERIAL PHOTO

THORNE BAY RANGER DISTRICT

MRC 12/8/14

MRC 12/22/14

ACAD.DWG

2 4

NOTES:

1. NORTH DIRECTION IS APPROXIMATION ONLY.

2. EXISTING TIMBER HELIPAD HAS SIGNIFICANT

DECAY DAMAGE AND IS UNSAFE FOR

LANDING USE. DO NOT USE.

3. ACTIVE FOREST SERVICE RADIO EQUIPMENT

AND SHELTER TO REMAIN. DO NOT DISTURB.

4. SITE IS LOCATED AT 55° 46’ 30" N 133° 08’

47" W AND ELEVATION 2200' ABOVE SEA

LEVEL.

5. SITE IS APPROXIMATELY 1 HOUR STRENUOUS

HIKE FROM NEARBY 2050700 FOREST

SERVICE ROAD, WHICH IS ACCESSIBLE FROM

2050000 FOREST SERVICE ROAD. END OF

ROAD 2050700 HAS A CLEAR SPACE FOR

POTENTIAL STAGING AREA.

6. SITE IS LOCATED IN PACIFIC NORTHWEST

SUB-ALPINE ENVIRONMENT AND IS SUBJECT

TO HIGH WINDS, COOL TEMPERATURES, AND

UNPREDICTABLE WEATHER CONDITIONS.

CONDITIONS MAY BE UNSAFE FOR

HELICOPTER FLIGHT.

7. SITE IS TYPICALLY ACCESSIBLE FROM JUNE

THROUGH SEPTEMBER.

EXISTING TIMBER HELIPAD

(UNSAFE FOR LANDING) AND

DEBRIS TO BE REMOVED

ACTIVE FOREST SERVICE

RADIO EQUIPMENT AND

SHELTER TO REMAIN

500 GAL PROPANE

TANK TO BE MOVED

APPROXIMATE LOCATION OF NEW ROCK HELIPAD.

CORNERS OF 16'X16' AREA TO BE STAKED BY

CONTRACTING OFFICER REPRESENTATIVE (COR).

INACTIVE FOREST SERVICE RADIO

EQUIPMENT, SHELTER, AND

FOUNDATION TO BE REMOVED

100 GAL PROPANE

TANKS TO BE MOVED

TIMBER PROPANE TANK, NO

FOUNDATION, PAD TO BE REMOVED

DATE:DRAWN:

REVIEWED: DATE:

DATE: REVISION: BY:

PLOT ON 11"X17" PAPER

TONGASS

ENGINEERING & RECREATION TNFTYP:09/04

TWIN PEAKS REPEATER SITE MAINTENANCE SITE SKETCH

THORNE BAY RANGER DISTRICT

MRC 12/8/14

MRC 12/8/14

ACAD.DWG

3 4

NOTES:

1. SITE SKETCH AND SCALE ARE APPROXIMATE REPRESENTATIONS ONLY. REFER TO

SHEET 2 FOR AERIAL PHOTO.

2. REMOVED ITEMS AND STRUCTURES TO BECOME PROPERTY OF THE CONTRACTOR

AND APPROPRIATELY DISPOSED OFF NATIONAL FOREST LAND.

3. COORDINATE MOVING OF PROPANE TANKS WITH COR AND CRAIG RANGER

DISTRICT PERSONNEL. FINAL LOCATION TO BE DESIGNATED BY COR.

EXISTING TIMBER 16'X16' HELICOPTER PAD

AND ASSOCIATED TIMBER DEBRIS TO BE

REMOVED. ANCHOR CABLES AT CORNERS

TO BE CUT FLUSH WITH GROUND.

NEW ROCK 16'X16' HELICOPTER

PAD. SEE SHEET 4 FOR

TYPICAL SECTION.

CORNERS OF 16'X16' AREA TO

BE STAKED BY CONTRACTING

OFFICER REPRESENTATIVE (COR).

ACTIVE FOREST SERVICE RADIO

EQUIPMENT AND SHELTER TO REMAIN.

CONTRACTOR MAY NOT USE AS SHELTER.

ONE 500 GAL AND TWO 100 GAL PROPANE

TANKS AND CONTENTS TO BE MOVED TO

CRAIG RANGER DISTRICT FACILITY.

INACTIVE FOREST SERVICE

RADIO EQUIPMENT AND

SHELTER TO BE REMOVED

EXISTING TIMBER PROPANE

TANK PAD TO BE REMOVED,

NO FOUNDATION ASSOCIATED.

EXISTING TIMBER RADIO EQUIPMENT

FOUNDATION FOR INACTIVE RADIO

EQUIPMENT TO BE REMOVED.

UNSAFE FOR

LANDING

SMALL CONCRETE FOOTINGS AT

EACH CORNER OF FOUNDATION TO

BE REMOVED.

DATE:DRAWN:

REVIEWED: DATE:

DATE: REVISION: BY:

PLOT ON 11"X17" PAPER

TONGASS

ENGINEERING & RECREATION TNFTYP:09/04

TWIN PEAKS REPEATER SITE MAINTENANCE HELIPAD TYPICAL SECTION

THORNE BAY RANGER DISTRICT

MRC 12/8/14

MRC 12/8/14

ACAD.DWG

4 4

NOTES:

1. DRAWING IS APPROXIMATION ONLY AND NOT TO SCALE.

2. CLEAR ALL WOODY VEGETATION ABOVE MUSKEG SURFACE WITHIN 10' OF

NEW HELIPAD AREA BEFORE CONSTRUCTING HELIPAD.

3. CONTRACTOR MAY USE GOVERNMENT FURNISHED AGGREGATE LOCATED AT

FOREST SERVICE STOCKPILE IN ROCK PIT AT ROAD 2050000 MILEPOST

12.96 FOR WORK IN THIS CONTRACT.

4. NEW HELIPAD SURFACE WATER DRAINAGE DIRECTION TO MATCH EXISTING

GROUND DRAINAGE DIRECTION.

5. FINISHED HELIPAD 16'X16' SURFACE MUST BE UNIFORMLY SLOPED AND

MAXIMUM SLOPE 5%.

6. ROCK PAD WILL PARTIALLY SINK INTO MUSKEG. THIS IS ACCEPTABLE.

FINISHED HELIPAD 16'X16' SURFACE MUST REMAIN ABOVE SURROUNDING

MUSKEG.

MUSKEG, APPROX. 2'

DEEP TO MOUNTAIN

BEDROCK

LAY WOVEN GEOTEXTILE FABRIC BETWEEN

AGGREGATE AND MUSKEG. GEOTEXTILE

MUST MEET AASHTO M288 SPEC.

35 CY PIT RUN AGGREGATE, NO

MATERIAL LARGER THAN 6". PLATE

COMPACT, 2 PASSES, 1' LIFTS.

DRAWING MUSKEG SURFACE IS

APPROXIMATION ONLY, AT

APPROXIMATELY 15% SLOPE

RECOMMENDED SURFACE DRAINAGE DIRECTIONSURFACE MAXIMUM SLOPE 5%

16'

DETAIL A - HELIPAD TYPICAL SECTION

PIT RUN AGGREGATE LAYERS

MIN 1' ABOVE GEOTEXTILE.

FILL SLOPE NO STEEPER THAN 1.25:1