Attachment 16: Specificaton Comments

SECTION 044313

STONE MASONRY VENEER

PART 2 PRODUCTS

2.01 STONE

A. Stone, General: See recommendations in ASTM C1528/C1528M. B. Stone to be sourced from a quarry outside the park. COR will provide information on available quarry.
C. Stone average densities will be around 2200 kg/m3 (2.2 g/cm3). D. Sourced from NPS Approved Weed Free Rock Quarry or supplier – Color comparison samples will be provided by NPS from the site. Once sourced, the contractor will provide samples submittals for review and approval to the Project Manager. See Attachment Q for list of approved sites for FY 27.

SECTION 312000

EARTH MOVING

2.03 GABION BASKET ROCK:

A. Furnish angular stone from a rock quarry or cut that is hard, durable, free of organic and spoil material, and resistant to weathering and water action. Do not use crushed river or rock with rounded surfaces. Conform to the following:
a. Durability Index (Course), AASHTO T 210 50 min
b. Density of a filled basket 100 lb/ft3 min

c. Gradation: Furnish rock with breadth and thickness at least one-third its length, average densities of that rock will be around 2200 kg/m3 (2.2 g/cm3).
d. NPS Approved Weed Free Quarry List–or supplier that is approved by NPS Color comparison samples will be provided by NPS from the site. Once sourced, the contractor will provide samples submittals for review and approval to the Project Manager. See Attachment Q for list of approved sites for FY 27.
e. Sample of stacked gabions will be required for approval

RECLAIMED STONE, GRAVEL SURFACING FILL AND BACKFILL:

A. Sourced from the project site, and contains no muck, roots, frozen material, peat, organics, or other frost susceptible aggregate materials.
a. Furnish angular stone from a rock quarry or cut that is hard, durable, free of organic and spoil material, and resistant to weathering and water action. Do not use crushed river or

rock with round surfaces.
Conform to the following:
b. Durability Index (Course), AASHTO T 210 50 min
c. Density of a filled basket 100 lb/ft3 min
d. Gradation: Furnish rock with breadth and thickness at least one-third of its length. e. Sourced from NPS Approved Weed Free Rock Quarry List or supplier that is submitted for approval. – Color comparison samples will be provided by NPS from the site. Once sourced, the contractor will provide samples submittals for review and approval to the Project Manager. See Attachment Q for list of approved sites for FY 27.

Stabilized Rock Area and Gabions
A. Rock Gabions were not intended to be dropped in not hand stacked, same as all other