Stornoway Airport Taxiway Refurbishment
Highlands and Islands Airports Limited | Published March 28, 2017 - Deadline May 2, 2017
HIAL is a private limited company wholly owned by Scottish Ministers, which owns and operates 11 airports at Barra, Benbecula, Campbeltown, Dundee, Inverness, Islay, Kirkwall, Stornoway, Sumburgh, Tiree and Wick, and handles over 1.4 million passengers a year. HIAL employs over 600 people across the 11 airports and Head Office in Inverness. HIAL wish to appoint a main Contractor for the provision of works to rehabilitate two Taxiways at Stornoway Airport. The Contractor will enter into a Contract under the terms and conditions of the NEC3 Engineering and Construction Contract (April 2013). The Draft Contract is attached and Tenderers should read carefully to ensure compliance with all obligations and requirements. All Works shall be undertaken within an operational airport environment therefore adherence to airfield operating protocols and standards is essential; as is the minimisation of disruption to passengers, airline operators, HIAL and the general public. Following an intrusive inspection of the taxiway pavements in 2015 by HIAL’s appointed consultants, it was recommended to overlay the pavements with 150mm of Marshalls Asphalt to increase the pavement strength. The Alpha and Charlie Taxiways of Stornoway Airport will be rehabilitated in accordance with the Works Information, which in summary include: a) Provision of an overlay of 155mm thickness; comprised of Marshall Asphalt surface and binder courses of combined thickness of 100mm, with an Asphalt Base Course of thickness 55mm over Alpha and Charlie Taxiways over an approximate length of 600m and area of 9600m2. b) Ramping of interfaces in Marshall Asphalt surface and binder courses, and Asphalt Concrete base course between the new overlay and existing pavement surfaces over an approximate area of 4000m2. c) Ramping of interfaces in an Asphalt Concrete construction between the new overlay and existing pavement surfaces over an approximate area of 3000m2. d) Removal and replacement to the level of new taxiway overlay of elevated and inset AGL units including associated plinths, seating rings, transformers, transformer chambers, wiring and cabling connections, with each plinth to be delethalised. e) Installation of new filter drain system with connections to the existing system, and improving of existing adjacent filter drainage systems with new direct connections to existing airfield drainage. f) Installation of a new surface channel drain at the interface where the taxiway overlay ties in with Alpha Taxiway and the disused runway. g) Removal and replacement of existing surface channel drain to north of terminal apron and surrounding pavement. h) Raising of selected existing manhole and chamber drainage features to match new levels with delethalisation also to be provided. i) Removal of selected gully covers and backfilling of chambers with Pavement Quality Concrete to existing surfacing level. j) Raising of adjacent soft landscaping areas to match new level of taxiway surface, with the edges of Alpha Taxiway to be delethalised. k) Pavement markings painted over new overlay in accordance with EASA regulations. No works are programmed to be designed by the Contractor.