This document is the Drain Basin with 2’x2’ Curb Inlet Quick Spec Installation Nyloplast Detail. It shows the drain basin and curb illustrations with descriptions.

The Nyloplast 2’ x 2’ curb inlet structure illustration shows the concrete curb & gutter, asphalt, ductile iron frame, hood & grate, 18” minimum width & 8” minimum thickness guidelines, minimum pipe burial, variable invert heights, integrated ductile iron base plate to match basin, various types of inlet & outlet adapters, adapter angles variable, watertight joint, traffic loads, variable sump depth and backfill material that should be crushed stone or other granular material.

Note 1 states that 12” – 30” frames shall be ductile iron per ASTM A536, grade 70-50-05. 8” – 30” solid covers shall be ductile iron per ASTM A536, grade 70-50-05. Note 2 says that drain basin to be custom manufactured. Note 3 clarifies that drainage connection stub joint tightness shall conform to ASTM D3212 for corrugated HDPE. Note 2 states that 12” – 30” frames shall be ductile iron per ASTM A536, grade 70-50-05. Note 4 confirms that adapters can be mounted at any angle. Note 5 states that all curb inlet grate options shall meet H-20 load rating.