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PLANNING, DESIGNS AND INVESTIGATION

The Planning, Designs and Investigation Wing is entrusted with field investigation and preparation of Detailed Project Report for River bridges, Grade Seperators, Road Over bridges(ROB) / Road Under Bridges (RUB) proposed and to executed by various wings of the Highways Department.

This wing has five investigation Divisions at Chennai, Madurai, Tirunelveli, Salem, Coimbatore and four designs divisions at Chennai with one Joint Chief Engineer and is headed by the Chief Engineer.

ACTIVITIES OF THE WING :

INVESTIGATION DIVISIONS AND THEIR ACTIVITIES

The Investigation divisions undertake the following field works:

FIELD INVESTIGATION AND SUBSOIL EXPLORATION :
  • Detailed Investigation and collection of field data for bridge and Road works.
  • Collection of required data from Public Works Department for river bridges and from Railways for ROB / RUB works.
  • Subsoil investigation to ascertain the bearing capacity of the subsoil and to decide the foundation of the bridges.
PREPARATION OF DETAILED REPORTS AND DRAWINGS :
  • Preparation of site plans incorporating all the field details.
  • Preparation of alignment drawings.
  • Preparation of cross sectional and longitudinal sectional drawings along the stream & alignment and computation of Hydraulic particulars.
  • Recommendation of suitable proposal based on field investigation and subsoil exploration.
DESIGN DIVISIONS AND THEIR ACTIVITIES :

The activities of designs divisions are as follows :

  • Preparation of designs, drawings and quantity estimates for river bridges, ROBs, RUBs, Grade separators and other Highway Structures.
  • Proof checking and approving the alternative designs furnished by the Bidders.
  • Proof checking and approving the detailed project reports prepared by the consultants engaged by various wings of the departments.
  • Redesigning the bridges and other components, if warranted in accordance with the subsoil conditions during execution.
  • Scrutinizing and giving the recommendations to facilitate the issue of permit for non standard heavy motor vehicles to ply on roads/bridges.
  • Scrutinizing and according approvals for the structural design of bridges to be constructed by other departments.

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Last Updated: 27-01-2021
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