Vendor shall provide an individual price for the purchase and delivery of the following items:
Twenty linear foot sections of Polypropylene/HDPE Pipe in accordance with attached specifications:
o 15" - 400' (20 sticks)
o 18" - 200' (10 sticks)
o 24" - 300' (15 sticks)
The price shall include freight/shipping fees. The hauler shall have the equipment available to unload
the items. Items are FOB (Free on Board) Destination.
Lake County reserves the right to award any combination of these items up to the specified quantities.
All quantities are not guaranteed to be awarded.
Deliveries shall be made to: Lake County Road Operations, 28598 Lady of the Lakes Av, Tavares, FL,
32778
Deliveries shall be made Monday through Thursday between 7:00 am and 5:00 pm. A 24-hour advance
notice must be provided. Scope
This specification describes 4- through 60-inch (100 to 1500 mm) ADS N-12 ST IB pipe (per ASTM F2648) for
use in gravity-flow land drainage applications.
Pipe Requirements
ADS N-12 ST IB pipe (per ASTM F2648) shall have a smooth interior and annular exterior corrugations.
o 4- through 60-inch (100 to 1500 mm) pipe shall meet ASTM F2648.
o Manning's "n" value for use in design shall be 0.012.
Joint Performance
Pipe shall be joined using a bell & spigot joint meeting ASTM F2648. The joint shall be soil-tight and gaskets
for diameters 12- through 60-inch, shall meet the requirements of ASTM F477. For diameters 4- through 10-
inch, the joint shall be soil-tight using an engaging dimple connection. Gaskets shall be installed by the pipe
manufacturer and covered with a removable, protective wrap to ensure the gasket is free from debris. A joint
lubricant available from the manufacturer shall be used on the gasket and bell during assembly.
Fittings
Fittings shall conform to ASTM F2306. Bell and spigot connections shall utilize a welded bell and valley or
saddle gasket meeting the soil-tight joint performance requirements of ASTM F2306.
Material Properties
Material for pipe production shall be an engineered compound of virgin and recycled high density
polyethylene conforming with the minimum requirements of cell classification 424420C (ESCR Test Condition
B) for 4- through 10-inch (100 to 250 mm) diameters, and 435420C (ESCR Test Condition B) for 12- through
60-inch (300 to 1500 mm) diameters, as defined and described in the latest version of ASTM D3350, except
that carbon black content should not exceed 4%. The design engineer shall verify compatibility with overall
system including structural, hydraulic, material, and installation requirements for a given application.
Installation
Installation shall be in accordance with ASTM D2321 and ADS recommended installation guidelines, with the
exception that minimum cover in trafficked areas for 4- through 48-inch (100 to 1200 mm) diameters shall be
one foot. (0.3 m) and for 60-inch (1500 mm) diameter the minimum cover shall be 2 ft. (0.6 m) in single run
applications. Backfill for minimum cover situations shall consist of Class 1 (compacted) or Class 2 (minimum
90% SPD) material. Maximum fill heights depend on embedment material and compaction level; please refer
to Technical Note 2.02. Contact your local ADS representative or visit our website at www.ads-pipe.com for a
copy of the latest installation guidelines.
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