Specifications include, but are not limited to: a. Trail will be a minimum of 2.9 miles (15,312 feet) long. b. Trail will be a minimum of 6 feet wide. c. Trail may be up to 12 feet wide in in sections as designated by the State. d. Trail will be a minimum of 1 inch thick when installed over asphalt e. Trail will be a minimum of 2 inches thick when installed over gravel base f. Trail will have a beveled edge g. Trail surfacing will be completely porous to water, with a minimum of 5,000 gallons per hour per square foot h. Trail surfacing will have at least 20% inner void space i. Trail surfacing will be slip resistant, meeting ASTM D-2047 slip resistant test j. Trail surfacing will be flexible and resistant to cracking and heaving due to normal environmental conditions