A04_Tunison_Parking_Locations_with_Design_Notes_26June25.pdf

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TUNISON GRAVEL PARKING LOT PROJECT
Solicitation number
140G0226R0004
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This document is a site plan showing temporary parking locations for the USGS Tunison Laboratory facility, dated April 28, 2023 and revised June 26, 2025. The plan details three parking areas requiring development work at the site.

Area A encompasses approximately 4,410 square feet (245 feet by 18 feet) and requires tree removal from the center of the area, re-grading adjacent to the existing drive with slopes at 6% or less for 90-degree parking, installation of geotextile fabric or equivalent underlayment, and installation of compacted granular fill with a minimum 6-inch depth. Area B covers approximately 5,400 square feet and involves re-grading the area adjacent to the existing drive following existing slope conditions with maximum 6% slopes, installation of geotextile fabric or equivalent underlayment, and compacted granular fill with minimum 6-inch depth. Area C encompasses approximately 5,100 square feet (85 feet by 60 feet) and requires removal of an existing fence gate, removal of three trees near the gate site, installation of a new powered rolling chain link gate with keypad lock at the entrance, and addition of granular fill overlay to the existing parking lot with minimum 2-inch depth and compaction. The document includes detailed design notes and dimensional specifications for each parking area location on the site topography map.

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Text version

04/28/2023

RACEWAYS

LOWER LAB

BUILDING

GARAGE

TUNISON LABORATORY - SITE TOPOGRAPHY

SITE PLAN: TEMPORARY PARKING LOCATIONS

NTS

USGS TUNISON SITE BAILEY EDWARD

USGS rev. 06/26/2025

AREA B DESIGN NOTES (red crosshatch area):

RE-GRADE AREA ADJACENT TO THE EXISTING DRIVE, FOLLOW

EXISTING SLOPE, USE SLOPES AT 6% OR LESS FOR 90 DEGREE

PARKING

INSTALL GEOTEXTILE FABRIC OR EQUIVALENT UNDERLAYMENT

INSTALL COMPACTED GRANULAR FILL - MIN. 6" DEPTH

APPROX. AREA OF B: SF 5400 SF (see below)

New Powered Rolling Chain Link Gate

18 ft

80 ft

110 ft 36 ft

Parking Area A Location

AREA A DESIGN NOTES (red crosshatch area):

REMOVE TREE IN THE CENTER OF AREA A (see pic)

RE-GRADE AREA ADJACENT TO THE EXISTING DRIVE,

FOLLOW EXISTING SLOPE, USE SLOPES AT 6% OR LESS

FOR 90 DEGREE PARKING

INSTALL GEOTEXTILE FABRIC OR EQUIVALENT

UNDERLAYMENT

INSTALL COMPACTED GRANULAR FILL - MIN. 6" DEPTH

APPROX. AREA OF A: 4410 SF (245’ x 18’)

UPPER LAB

POLE BARN

GARAGE

ROAD

ROAD

ROAD

AREA C DESIGN NOTES (red crosshatch area):

REMOVE EXISTING FENCE GATE

REMOVE 3 TREES NEAR GATE SITE (see pics)

INSTALL POWERED ROLLING GATE AT ENTRANCE WITH

KEYPAD LOCK

ADD GRANULAR FILL OVERLAY TO EXISTING PARKING

LOT AND COMPACT, MIN. 2" DEPTH

APPROX. AREA: 5100 SF (85’ x 60’)

Parking Area C Location

File details come from the government source that posted it. Updated .