Last updated: 23 August 2018

Where & Why?

Work to carry out essential bridge maintenance works on the west bound carriageway of Kneeshaw Lupton bridge located 500 metres west of Junction 23 at Llanddulas. A55 traffic will run in contra-flow on the east bound carriageway whilst the works are carried out.

The bridge deck waterproofing is leaking and must be replaced to protect the integrity of the bridge deck slab which supports the carriageway running surface. Bridge deck waterproofing needs to be applied in dry conditions. Therefore the works need to be completed before the onset of wetter and cooler weather which is more likely to occur later in Autumn. Contractors will work in shifts on a 24 hours/day and 7 days/week basis to complete the works before the start of the English and Welsh Autumn half term holidays.

The main bridge deck movement joint is damaged beyond repair and must also be replaced. This is required for the safety of road users.

Diversions & Safety Measures

The west and east bound carriageways are at different levels immediately to the west of the bridge. The cross-over at the west end of the contra flow is located where the carriageways return to the same level which is near to Rainbow bridge. The distance between the two cross-overs is 1.8 km.

Traffic management will commence with lane 2 closures in the early hours of 17th September. These will remain in place until 19th September. There will also be over-night closures of the east bound carriageway with traffic being diverted via A547 Abergele Road between Junction 22 and Junction 23 . This is to open the cross-overs and prepare the carriageways and the central reserve for contra-flow.

From the 19th September traffic will use lane 1 and lane 2 of the east bound carriageway in a bi-directional contra-flow traffic management arrangement between cross-overs located at Rainbow Bridge, Colwyn Bay and near to Junction 23 at Llanddulas. The lane width will be restricted to 3.0m and the speed will be restricted to 40 mph for both east and west bound traffic. The west bound carriageway will enclose the works site and will be fully closed over the length of the contra-flow.

The west bound on-slip at Junction 23 Llanddulas will be closed whilst the contra-flow traffic management arrangement is in place. Traffic which is prevented from joining the A55 heading west bound will be diverted via the A547 Abergele Road and will re-join the A55 at Junction 22 at Old Colwyn.

24 hour vehicle recovery service will be employed throughout the duration of the works.

There is likely to be queueing of traffic on both the east and west bound approaches to the contra-flow during busy periods. All road users should allow for increased journey times whilst the restrictions are in place and are advised to plan their journeys to avoid busy periods if possible.

A 1.5 metre high barrier will be erected along the boundary of the work site to protect A55 users from wind-blown debris or materials arising from within the work site.

Programme of traffic management restrictions

Details of Restrictions

Start Date and time**

End Date and Time**

Notes**

Closure of lane 2 east bound and west bound between eastern cross-over near to Junction 23, Llanddulas and western cross-over at Rainbow Bridge, Colwyn Bay to open cross-overs in central reserve.

 

40 mph speed restriction.

00:00 17/09/18

20.00 18/09/18

 

Closure of lane 2 west bound and full closure east bound between Junction 23 Llanddulas and Junction 22, Old Colwyn.

 

40 mph speed restriction.

20.00 17/09/18

20.00 18/09/18

06.00 18/09/18

06.00 19/09/18

 

Closure of west bound carriageway. Traffic to run in a bi-directional 2-lane contra-flow traffic management arrangement on east bound carriageway between cross-over located at Rainbow Bridge, Colwyn Bay and  cross-over located near to  Junction 23 at Llanddulas.

The west bound on slip at Junction 23 Llanddulas will also be closed.

 

40 mph speed restriction.

 

Lane widths reduced to 3.0m.

06.00 19/09/18

20:00 16/10/18

Abnormal loads will be held at Junction 19 for east bound movements and Junction 24 for west bound movements

Closure of lane 2 west bound and full closure east bound between Junction 23 Llanddulas and Junction 22, Old Colwyn.

 

40 mph speed restriction.

20.00 16/10/18

06.00 17/10/18

 

Closure of lane 2 east bound and west bound between eastern cross-over near to Junction 23 at Llanddulas and western cross-over at Rainbow Bridge, Colwyn Bay to close cross-overs and reinstate central reserve.

 

40 mph speed restriction.

 

06.00 17/10/18

12.00 18/10/18

 

** dates provisional, may be subject to change

Enquiries

For further information, please contact the North & Mid Wales Trunk Road Agent (NMWTRA) on 0300 123 1213 or refer to the website www.traffic-wales.com or Twitter @TrafficWalesN / @TraffigCymruG.