NH-66 Kerala Viaducts and Tunnels Tender (NHAI EPC)

NHAI has opened bidding for 12 viaducts, two cut-and-cover tunnels and a pedestrian underpass on NH-66 in Kerala, with bids closing 20 August 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.

Key facts

How to apply

1. Open the official portal: Central Public Procurement Portal (eProcure).
2. Search by tender ID 2026_NHAI_283190_1 (reference no. PROJ-33014(36)/1/2026-PIU Thiruvananthapuram/320080) under National Highways Authority of India.
3. Register on the portal and keep a valid Class III digital signature certificate ready.
4. Download the NIT, tender document and BOQ, and check eligibility, EMD and fee terms against your credentials.
5. Submit your bid online before 20 August 2026.

More on DesiMachines

Machines that suit this work: cranes, excavators and concrete mixers. Weighing the money side? See equipment finance options.

Related live tenders worth a look: the NHAI road tunnel tender in Delhi, the BRO seven-tunnels tender in Ladakh and the NHAI Bairiya–Ara bypass tender. Or browse tenders in Kerala and all live tenders.

FAQ

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.