NM CID GF-4 Practice Questions - New Mexico CID GF-4 Drainage Or Flood Control Systems Contractor Examination Exam

Reinforced concrete pipe (ASTM C76) is widely used for culverts and storm sewers; corrugated metal and thermoplastic pipe are also used when the contract specifies them and cover, bedding, and hydraulics are checked Only ductile-iron pressure pipe may ever be used for gravity storm sewers CMP may always replace RCP one-for-one without checking n or cover HDPE may be laid on a rock bottom with no bedding because it is flexible