RAF Valley will be having its short runway resurfaced.
Work will start in January 2024 to resurface the runway and a number of Aircraft Operating Surfaces.
To enable the critical infrastructure project, there will be heavy construction traffic through Caergeiliog (via the Cymyran Road) during daily week-day working hours once work is underway.
This is set to start about January 8 and will increase from mid-February, with the preparatory arrival of associated heavy plant into the base.
Work involving the regular transport of materials for resurfacing is expected to start in early April.
Group Captain M D Hoare, Officer Commanding, said: "We then anticipate a steady rhythm of approximately 30-40 vehicles moving through the Cymyran Road to Crash Gate 2, (Northeast of the main RAF Valley entrance) during the day. Work is expected to be finished in late 2025.
"All major work movements throughout the duration will be through Crash Gate 2, via Caergeiliog. It is expected that all major movements of vehicles will be conducted during normal working hours whilst avoiding busy entry periods into RAF Valley. No associated heavy vehicles will be approaching at any time from Minffordd Road during the main construction period."
School drop-off and pick up times will be avoided.
Group Captain Hoare said: "We request your forbearance during this period.
"Many of you will recall that we undertook similar work seven years ago to resurface the main runway and although these things are never entirely pain free, you will recall we did our utmost to keep disruption to a minimum and we will endeavour to do likewise this time.
"The prime contractor Lagan has considerable recent experience of this type of work at other RAF bases and they will work closely with us and North Wales Police and Isle of Anglesey County Council to minimise impact on the community."
The work may present some business opportunities with 200 workers needing accommodation.
Group Captain Hoare added: "Stone and other associated materials will also be purchased from local contractors on the island that will provide a helpful and welcome boost to the local economy."
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