Specifications - City of Montpelier, Vermont

Title:02200 – EarthworkMontpelier District HeatingCity of Montpelier, VTIssue Date:September 28, 2012Page #:8 of 16L. Types I, II, III, and IV Stone Fill shall be approved, hard, blasted, angular rock other thanserpentine rock containing the fiberous variety chrysotile (asbestos). The leastdimension of the stone shall be greater than 33 percent of the longest dimension. Thestone shall be reasonably well graded from smallest to largest to the maximum size stonespecified so as to form a compact mass when in palce.1. Type I: The longest dimension of the stone shall vary from 1 to 12 inches, and atleast 50 percent of the volume of the stone shall have a least dimension of 4 inches.2. Type II: The longest dimension of the stone shall vary from 2 to 36 inches, and atleast 50 percent of the volume of the stone shall have a least dimension of 12inches.3. Type III: The longest dimension of the stone shall vary from 3 to 48 inches, and atleast 50 percent of the volume of the stone shall have a least dimension of 16inches.4. Type IV: The longest dimension of the stone shall vary from 3 to 60 inches, and atleast 50 percent of the volume of the stone shall have a least dimension of 20inches.2.2 ACCESSORIESA. Detectable Warning Tape: Acid and alkaliresistant polyethylene film warning tapemanufactured for marking and identifying underground utilities, 6 inches wide and 4mils thick minimum, continuously inscribed with a description of the utility, withmetallic core encased in a protective jacket for corrosion protection, detectable by metaldetector when tape is buried up to 2'6" deep.1. Tape Colors: Provide tape colors to utilities as follows:a. Red: Electric.b. Yellow: Gas, oil, steam, and dangerous materials.c. Orange: Telephone and other communications.d. Blue: Water systems.e. Green: Sewer systems.f. Effluent Force Main: Metal Trace Wire.B. Filter Fabric: Manufacturer's standard nonwoven pervious geotextile fabric ofpolypropylene, nylon or polyester fibers, or a combination.1. Provide filter fabrics that meet or exceed the listed minimum physical propertiesdetermined according to ASTM D 4759 and the referenced standard test method inparentheses:a. Grab Tensile Strength (ASTM D 4632): 100 lb.b. Apparent Opening Size (ASTM D 4751): #100 U.S. Standard sieve.EARTHWORK 02200 8