TECHNICAL  CIRCULARS
 
WIDTH OF BRIDGES ON 2-LANE NH (WITH AND WITHOUT FOOTPATH).

Guidelines regarding Formation width, Geometrics improvement and safety measures on Hill Roads.

Model TOR for Road and Bridge Projects (A sample of Longding to Nokjan road under Longding Division).

Model TOR for Sub-soil Investigation for Bridge site

IRC:SP:73-2007 – Manual of Standards & Specification for two laning of State Highways on BOT Basis