
There are planned night time closures of the South Side of Park Street Roundabout on the 22nd, 23rd, and 24th September 8.00pm to 6.00am. To accommodate this the night time closures will include the A414 Westbound from the London Colney Roundabout to the Park Street Roundabout. The A405 North Orbital Road & South between Tippendell Lane and Park Street Roundabout. The A5183 Watling Street South access & egress to Park Street Roundabout( see above)
The A5183 Watling Street North will have a night time closure on 21st September 8.00pm to 6.00am
There is a planned full weekend closure of Northbound A405 into Park Street roundabout and A414 westbound to M1 Friday 25th September 8.00pm through to 6.00am Monday 28th September see below. During the works the A414 will be reduced to a single lane at the approaches along with Park Street Roundabout operating a single lane

During the weekend closure the red sections will be closed overnight 8pm to 6am. This will restrict the exits from the roundabout dependent on where you enter the roundabout see below

Diversion routes will be in place supported by appropriate signage.
Regards
Community Liaison Team
SEGRO