Motorists using the A505 between Baldock and Royston are being warned that the Weston Hills Tunnel on the Baldock By-Pass will be closed tonight and for Wednesday and Thursday night as well for several hours. The closure will be between 10pm and 6am. Hert

Motorists using the A505 between Baldock and Royston are being warned that the Weston Hills Tunnel on the Baldock By-Pass will be closed tonight and for Wednesday and Thursday night as well for several hours.

The closure will be between 10pm and 6am.

Hertfordshire Highways is carrying out routine maintenance including checking the tunnel's lighting, ventilation and emergency systems, as well as general cleaning.

Owing to safety considerations, this requires the closure of the tunnel. In order to reduce disruption to road users, this maintenance will be carried out in shifts over three nights and a signed diversion will be in place.