The 116.1 km Chittoor – Thatchur Expressway (NH-716B) by NHAI is an approved 6 lane access-controlled corridor with a route alignment connecting Keenatampalli near Chittoor (Andhra Pradesh) with Thatchoor – near Ponneri & Ennore (Tamil Nadu).
This greenfield highway will link the 262 km Bangalore – Chennai Expressway near Chittoor (KM 152) with the 133 km Chennai Peripheral Ring Road (CPRR project) at Kannigaipair with which 10.45 km will overlap – taking the overall project length to 126.550 km.
The project was approved for construction under the Bharatmala Pariyojana Phase 1 program and its Detailed Project Report (DPR) was prepared by Louis Berger Group Inc.
The expressway is designed with a 70m ROW (right of way) and speed limit of 100 kmph. It feature 10 major bridges, 33 minor bridges, 2 Rail Overbridges, 252 culverts, 79 vehicular underpasses, 8 interchanges, and animal crossings to minimize human-animal interaction.
