NHAI has opened bidding for 12 viaducts, two cut-and-cover tunnels and a pedestrian underpass on NH-66 in Kerala, with bids closing 21 October 2026.
This is one of the larger structures packages on the coast this year. The work covers the Km 517.250 to Km 547.080 stretch of New NH-66 (the old NH-47) and is being tendered on EPC mode, so the winning firm carries design and build together. At an estimated ₹959.25 crore, the NH-66 Kerala package is built for a contractor who has put up long-span viaducts and driven cut-and-cover tunnels before, not a first-timer.
What the job involves
Twelve viaducts at separate locations, two cut-and-cover tunnels and one pedestrian underpass, all inside a roughly 30 km run of highway. That mix means deep foundation work, heavy concreting and a steady flow of girders and precast segments through built-up coastal terrain. Bid validity is 180 days, and the contract is a single EPC agreement rather than item-rate, so your rates have to hold across the full build.
Who should put in a bid
You want a strong bridges-and-structures record to clear the eligibility bar here. The EMD of ₹9.59 crore and the tender fee of ₹96,000 are payable offline, and the technical thresholds on an NHAI EPC job of this size will lean on similar completed viaduct or tunnel work. Smaller contractors are better off eyeing the equipment-hire and sub-package side once the main contract is awarded.
Machines you will run on site
Expect piling rigs, long-boom excavators, crawler and truck cranes for girder launching, transit mixers and batching plants feeding continuous pours, plus tippers and loaders moving muck out of the tunnel cuts. Owners with launching cranes and high-capacity concrete equipment will find plenty of hire demand once mobilisation starts.
Construction of 12 viaducts, two cut-and-cover tunnels and one pedestrian underpass on the Km 517.250 to 547.080 stretch of New NH-66 in Kerala, on EPC mode.
What is the estimated value and EMD?
The estimated value is ₹959.25 crore. The earnest money deposit is ₹9.59 crore and the tender fee is ₹96,000, both payable offline.
When do bids close?
Bids close on 21 October 2026, with bid opening the next day, 22 October 2026. Bid validity is 180 days.
Who is eligible to bid?
NHAI expects bidders with a proven record in viaduct and tunnel construction. Contractors without that scale usually enter through equipment hire or sub-packages after award.
Tender details are summarised for convenience and may change. Always verify the latest dates, terms and documents on the official tendering portal before bidding. DesiMachines is not responsible for changes made by the issuing authority.
Bidding with your own machines?Tenders often ask for machine papers such as the RC, insurance and invoice. Keep them in one private place on My Machine and get a reminder before insurance or service falls due. Free.
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