Hewick Bridge (Bridge no. 258) Masonry Repairs and Vegetation Removal

Vegetation Removal and Parapet Repairs

Works will be carried out under a full road closure. The contractor will be required to work 7 days per week to enable the works to be completed in as little time as possible.

Vegetation removal will include:

• Clear vegetation and silt build up in all verges.
• Overhanging trees to NW of the bridge to be cut back.
• Tree on formed island immediately downstream between span 5 & 6 to be removed/ killed.
• Saplings to be removed from cut waters, wing walls and parapets.
• Remove ivy from SE parapet.

Masonry Repairs will include:

• Receive delivery of 7.6 m3 of new stone plus an additional 10% purchased by North Yorkshire County Council between Monday 22nd January and Friday 26th January 2018
• Carefully dismantle parapets as per contract drawings and set aside stones that are to be reused. Stones to be reused shall be placed back in their original position.
• Rebuild parapets according to contract drawings and reset as straight as practicable using a 1 NHL 3.5 Lime: 1 Cement: 6 Sharp Sand mortar mix.
• Rake out and repoint all mortar on cutwaters and repoint using a 1 NHL 3.5 Lime: 2.5 Sharp Sand: 0.5 soft sand mix.
• Verges to be filled with HRA 55/10 F surf 40/60 des WTR 1 to be placed to the edge of the carriageway with 1 in 10 slope away from the parapet.
• Reinstate road markings