Heritage Cases

The proposed upgrades will provide improved vehicular and pedestrian access and ensure proper stormwater drainage which will prevent flooding and/or damage to existing infrastructure. The relevant roads to be upgraded consist of local collectors as well as taxi/bus routes. The purpose of this project is to ensure that residents will be able to access safe and accessible routes throughout the year regardless of weather conditions and typical traffic types. It is proposed that run-off water from the area should flow into a retention/attenuation pond, where sediment and rubbish can be trapped. This pond will be constructed in such a way, that it can be cleaned out by excavation equipment (i.e. TLB). Two types of drainage systems are proposed along with 2 types of retention structures: Drainage • Stormwater drainage pipes (subsurface): o Wide reserves - Stormwater drainage pipes in conventional positions; o Narrow reserves - Stormwater drainage pipes directly underneath travelled way; • Concrete lined open drains (surface): o Stormwater discharge point - Concrete lined V-drains from the network end point into the Retention pond(s) and into the discharge area. Structures • “Trash traps” - Trash to be trapped before it reaches the wetland area; and • Retention pond - Sediment needs to be retained in retention pond to prevent it from contaminating the wetland area. The proposed road works will include the following: Bitumen surfaced streets • Repair edge break as well as other surface and pavement failures; • Seal cracks; • Clean blocked pipes/culverts and improve drainage by open concrete-lined surface • drains and/or mitre drains; • Reconstruct/reinstate gravel shoulder where required; • Provide concrete edge beams; • Apply a fog spray; • Apply texture slurry; • Apply single and double bituminous surfacing where applicable with modified bitumen • binder; • Rework areas of severe pavement distress (cold in-situ recycling process) and surface with asphalt; • Overlay intersections with asphalt; and • Apply street markings. streets (existing street reserves wide enough) Gravel surfaced streets (existing street reserves wide enough) • Rework and stabilise 150mm base; • Provide 30mm asphalt surfacing/80mm Interlocking block paving; • Clean blocked pipes/culverts and improve drainage by open concrete-lined surface side • drains and/or mitre drains; • Reconstruct/reinstate walkways where required; • Provide concrete edge beams; and • Apply street markings. Gravel surfaced streets (existing street reserves too narrow) • Provide storm water drainage pipes directly below travelled way with mountable kerbs • and inlet structures/Shape travelled way as wide V-drain; • Rework and stabilise 150mm base; • Provide 30mm asphalt surfacing/80mm interlocking block paving; • Clean blocked pipes/culverts; • Reconstruct/reinstate walkways where required; • Provide concrete edge beams; and • Apply street markings. Unsurfaced streets (existing street reserves wide enough) • Build new layer works utilising existing materials to optimum; • Provide 30mm asphalt surfacing/80mm interlocking block paving; • Clean blocked pipes/culverts and improve drainage by open concrete-lined surface side • drains and/or mitre drains; • Reconstruct/reinstate walkways where required; • Provide concrete edge beams; and • Apply street markings. Unsurfaced streets (existing street reserves too narrow) • Provide storm water drainage pipes directly below travelled way with mountable kerbs • and inlet structures/Shape travelled way as wide V-drain; • Build new layer works; • Provide 30mm asphalt surfacing/80mm interlocking block paving; • Clean blocked pipes/culverts; • Reconstruct/reinstate walkways where required; • Provide concrete edge beams; and • • Apply street markings.