PKC11964 - A827 Bolfracks Gabion Wall Repair & Scour Protection

Description

The Bolfracks wall is an existing gabion basket retaining wall supporting the A827 between Aberfeldy and Kenmore. The River Tay is at the foot of the wall. The foundations of a 20m long section of wall have been scoured away by the river and have partially collapsed. The works are to remove and replace this failed section of wall and install rockbag scour protection to the full length of the wall. The site has high environmental importance. The A827 road is a key route in the area and road closure duration must be minimised. The works will require the Contractor to; Plan and programme the works to be complete within (or less than) the given road closure duration. Ensure compliance with ecological licence requirements Erect traffic diversion and take full road closure Install rockbag scour protection in River Tay Install temporary works as required Remove existing failed gabions basket wall Rebuild new gabion wall Reconstruct road surface Install new vehicle restraint system The Contractor should note the extensive environmental constraints, licences, and species protection plans. An Ecological Clerk of Works will be employed by the Client to monitor compliance with these requirements. Lot 1: The Bolfracks wall is an existing gabion basket retaining wall supporting the A827 between Aberfeldy and Kenmore. The River Tay is at the foot of the wall. The foundations of a 20m long section of wall have been scoured away by the river and have partially collapsed. The works are to remove and replace this failed section of wall and install rockbag scour protection to the full length of the wall. The site has high environmental importance. The A827 road is a key route in the area and road closure duration must be minimised. The works will require the Contractor to; Plan and programme the works to be complete within (or less than) the given road closure duration. Ensure compliance with ecological licence requirements Erect traffic diversion and take full road closure Install rockbag scour protection in River Tay Install temporary works as required Remove existing failed gabions basket wall Rebuild new gabion wall Reconstruct road surface Install new vehicle restraint system The Contractor should note the extensive environmental constraints, licences, and species protection plans. An Ecological Clerk of Works will be employed by the Client to monitor compliance with these requirements.. Site visit to take place on Tuesday 2 July 2024. Details can be found on page 9 of Part 1 Bolfracks Instructions for Tenderers document