A38-A419 Whitminster Roundabout Canal Bridges

Description

The scheme shall ultimately deliver the construction of the canal through the A38 Whitminster Roundabout. The scheme shall include the construction of two new bridges, a canal channel within the roundabout and a towpath under the bridge, the work consists of the following: - • The procurement, design and construction of two precast segmental box culverts (16m length, 7.45m clear span and 4.69m internal height). To include headwall beam and N2 parapets. • Coordination of utility diversions including Severn Trent Water Main and W&W Gas Main. • Coordination of utility lifting and protection to include 13No BT Ducts, Vodafone, 2 No CityFibre, 2 No COLT and Virgin Media. This will include procurement, design and erection of a service bridge to carry existing BT ducts when lifted to the required height. • Construction of 6 No contiguous bore piled wing walls • Construction of 2 No modular concrete block wing walls • Construction of a canal channel between the two bridges within the centre of the roundabout, to include provision of a towpath and embankment retaining wall. • Carriageway surfacing, kerbing and footpath amendments where the carriageway level will require raising to pass over the bridges. • Partial replacement of the street light system on the roundabout • Installation of N2 Vehicle Restraint Systems on the bridge approaches • Installation of pedestrian guard railing • Drainage amendments and partial culverting of the southern drainage ditch. Installation of 2 No oil interceptors prior to discharge into the canal. • General vegetation and tree removal • Excavation and transportation of up to 14,000m3 of material to a site in Northleach where it will require placement over a designated field. • Replacement of road signs • Roadmarking reinstatement • Provision of 2 No ladders and horizontal recycled plastic fenders to be fixed to the towpath retaining wall • Media support during construction including time-lapse cameras, webcam and regular aerial images. Tender period :30th August 2019 to 4th October 2019 Anticipated Works Start Date :2nd December 2019 Completion :16th October 2020 Indicative Value :£2.5m The proposed procurement route will be a single stage (sub-OJEU Open Procedure) using the NEC4 ECC form of Contract, Option A Priced Contract with Activity Schedule. Full details will be available in the tender pack.