Finalizing alignment of the project and getting clearances from forest department faced huge delays. In September 2016
Detailed Project Report for just 79 km from proposed 1229 km was only completed. The project comprises 40 reaches and in 7 reaches it is planned with less than 12 metre width. As of 2020, works on 21 reaches spread across
Thiruvananthapuram,
Kollam,
Kozhikode,
Kannur,
Kasaragod districts are in progress. In March 2020, a 46 km stretch of hill highway in
Kollam district between
Punalur and Agasthyacode (near
Anchal) and between Alencherry (near
Anchal) and Challimukku (near
Kollayil on
Kollam - Thiruvananthapuram district border) got completed. In August 2020, works on 35 km stretch of the highway in
Kozhikode district between
Kodencheri and
Kakkadampoyil at a width of 12 m was inaugurated by Minister of Public Works Department. The works are done by
Uralungal Labour Contract Co-operative Society. The works on
Thottilpalam - Thalayad stretch is facing opposition from land owners. The
Detailed Project Report for project in
Kasaragod district was submitted with a length of 128 km through the district in January 2018. As of August 2020, the works in first stretch of the project in
Kasaragod district between Nandarapadavu and Chevar are nearing completion and works on other stretches are in progress. The project in district through Pandu Forest near
Adoor (Kasaragod) delayed much due to approval from Forest department. The works in
Thiruvananthapuram district commenced in 2018 at
Parassala constituency in two reaches
Parassala -
Kudappanamoodu Reach 1 and
Kudappanamoodu - Paruthipalli reaches. As of 2020, the works on Reach 1 is stalled and works in Reach 2 is moving in a very slow pace. In 2021 February, the works on 15.7 km Reach-1 between
Parassala -
Kudappanamoodu was re-tendered since the contractor to whom it was awarded initially had died due to
COVID-19 pandemic. The new contract was awarded to
Uralungal Labour Contract Co-operative Society. The works on 7.85 km-long
Kudappanamoodu -
Kallikkad stretch and the 3.90 km-long
Kallikkad-Paruthippally stretch commenced simultaneously. By 2023-2024, the stretch between
Aryanadu and
Parassala got completed. In
Wayanad district as of February 2021, the land acquisition from
tea estates on a 13 km stretch between
Meppadi and Chooralmala is pending. The part of hill highway connecting hill highway of
Wayanad district with
Malappuram district i.e. the Aranappuzha - Munderi stretch passes through forest 7 km of forest land. This area is ecologically sensitive and was impacted severely by
2019 Kerala floods and approval from
Forest Department is still pending in this stretch. == Advantages ==