To accommodate wheelchairs, walkers,etc., and ADA guidelines, the following 3 layer ground cover is recommended:

• Bottom: 3"-4" aggregate base (provides air and water drainage for resiient ground cover placed above)
• Middle: Sheeting of geotextile fabric (separates ground cover from aggregate base and allows water to pass through)
• Top: 12" hardwood chips as top ground cover
  (this will compact to approx.10")

If serving physically handicapped children is not a school consideration, a quality pea gravel could be used (see designer for specifics).

Railroad Ties: Estimated total = 282 ties @ 8' lengths (approx.)

RailRoad ties must be of good quality, but not new or with wet creosote.

Alternative Material: Treated 6"x6" (or larger if available) beams.

Ties (or Beams) will be used as a border to differentiate 3 areas--

• Area 1: The "general interior" area - Contains the ground cover for the entire play area; 2 tier high = 125
• Area 2: The "Interior Islands" (8) - 4 around existing pine trees; 4 enclose Islands of trees, bushes, flowers and seating; 2 tier high = 116
• Area 3: The "exterior" area - Outer border of playscape containing outer rim of plantings (trees, bushes, flowers); 1 teir high = 41

Attachment / securing alternatives (the 1st is preferred)

1. Attach with rebar. Predrill holes at two outer points in each tie. Insert and drive 3/8" or 1/2" diameter rebar to secure.
   If Rebar used: 482 - @ 30" length; 82 - @ 18" length
2. Attach 7"x16" strips of thin gauge (1/8-1/4") non-steel reinforced conveyor belt across butting ends of ties with 12p nails. Discuss method with designer as needed.
   If Converyor Belt used: 764 pcs

Concrete: 115 - 80 lb. bags

Easiest way to manage the process of properly setting each pole is to use a Ready-Mix concrete. Ready-Mix allows the crew to work at their own pace. If ground is moist, pour dry into holes; it will set with ground moisture only.