On April 30, 2008, the NHAI and ISDTPL entered into a concession agreement in respect of the Surat–Dahisar NH 8 Project. ISDTPL was engaged to expand a 239 km section of NH 8 between Surat in Gujarat and Dahisar in Maharashtra from four lanes to six lanes on a BOT basis or a DBFOT pattern. The concession period and the collection of tolls commenced on February 20, 2009. A provisional certificate of completion was issued on April 6, 2013.
As per the relevant concession agreement, the Surat–Dahisar NH 8 Project comprises the section of NH 8 from km 263.00 to km 502.00.
The project features:
• 239 km of six-lane carriageway
• 283.369 km of service road
• 17 major bridges
• 37 minor bridges
• 25 flyovers
• 2 railway-over-bridges
• 496 culverts
• 12 pedestrian underpasses
• 16 vehicular underpasses
• 304 intersections
• 4 toll plaza complexes
