New Delhi, Jul 11 (PTI) State-owned National Highways Authority of India (NHAI) has said it plans to bid out 124 highways and expressways projects worth Rs 3.4 lakh crore in 2025-26.

The total length of the highways likely to be taken up for bids by NHAI in 2025-26 is 6,376 km.

Gorakhpur - Kishanganj - Siliguri(476 Km) project will be taken up for bids by NHAI under the Hybrid Annuity Model (HAM) mode, while Tharad-Deesa-Mehsana-Ahmedabad - Pkg 1(106 km) project will be taken up for bids by NHAI under Build Operate and Transfer (BOT) model.

The NHAI said Capacity Augmentation of Pampore (Srinagar) to Qazigund section of NH-44(48 km) by construction of service road , grade seperated structures will be be taken up for bids under Engineering Procurement and Construction (EPC) model.

National Highways s projects are executed on mainly three modes -- Build Operate and Transfer (BOT),Hybrid Annuity Model (HAM) and Engineering Procurement and Construction (EPC).

Concession period for projects including maintenance on Build Operate and Transfer (BOT) is 15 to 20 years and on Hybrid Annuity Model (HAM) is generally 15 years. Concessionaire is responsible for maintenance of the respective NHs stretches within the concession period of the project.

Only in case of EPC projects, Defect Liability period (DLP) is 5 years for the bituminous pavement works and 10 years for concrete pavement works.PTI BKS BKS

Concession models for highways: BOT, HAM and EPC determine bidding, concession terms and defect liability periods. NHAI will bid 124 highway and expressway projects across BOT, HAM and EPC procurement models; BOT and HAM projects include concession-based maintenance obligations for the concession period (generally 15-20 years for BOT and typically 15 years for HAM), while EPC contracts carry Defect Liability Periods of five years for bituminous pavement and ten years for concrete pavement.