Motorists across Monmouthshire are being urged to plan ahead as a series of temporary road closures come into force later this month, affecting key routes in Tintern, Trellech Grange and Llanhennock.

The closures, authorised by Monmouthshire County Council under emergency traffic powers, are part of essential utility works designed to future‑proof services while keeping crews and road users safe.

First up is Forge Road in Tintern, which will close on Wednesday April 23 between 8am and 6pm. The closure stretches from its junction with Glynwood Lane to Glyn View while specialist poling works are carried out. A local diversion will guide drivers via Forge Road, Glynwood Lane, Glyn View and Brookside. The council says reasonable access will be maintained for residents throughout the day.

The same date also sees a more substantial closure on Gethley Road, Trellech Grange, as BT fibre cabling works get under way. Around 1.45 kilometres of road will be shut from approximately 395 metres south of Tintern Road, operating between 9.30am and 3.30pm. Traffic will be diverted along a longer rural route via the R94, B4293 and R92, with drivers warned to allow extra time for journeys. Access to properties will again be preserved wherever possible.

Further disruption follows the next week in Llanhennock, where Glen Usk Road will close from Monday April 27 until Thursday April 30, daily between 9.30am and 3.30pm. The closure runs from the junction with Llanhennock Top Road for just over a kilometre, while BT carries out cabling works. A lengthy signed diversion will take traffic via Sor Bridge, Clomendy Wood Farm, Tre Herbert Road, Cwrt Bleddyn Hotel and Newbridge‑on‑Usk.

Although each order can remain legally in place for up to 18 months, the council stresses that all works are expected to be completed within the advertised windows, weather permitting.

A spokesperson said the measures were “necessary to allow essential works to be carried out safely” and thanked residents and drivers for their patience.

Anyone ignoring the closures could face enforcement action, with contraventions classed as an offence under the Road Traffic Regulation Act.

Find out about planning applications that affect you by visiting the Public Notice Portal.

For now, drivers are advised to check routes, follow diversion signage — and expect a few extra miles on the clock as they negotiate the alternative routes.