Ernest Street, MARGATE

MCU (Duplex) - Stormwater Technical Memorandum

Demonstrating suitability of retaining an existing gully-pit at the location of a new crossover
Provision for access to the development in a 1% AEP flood scenario where the gully pit is at capacity without the need for a localised overland flow study
Providing code compliance assessment due to the sloping nature of the existing site
Splaying of existing crossover to provide 1.0m clearance to an existing powerpole

Demonstrated that the existing gully pit maintains full hydraulic performance and can remain in place without reconstruction.
Confirmed safe driveway access during the 1% AEP event using pit sag-depth and road-level checks, avoiding the need for an overland flow study.
Verified compliance with relevant slope and earthworks codes based on the existing site grade and proposed building levels.
Adjusted crossover geometry and splays to achieve the required 1.0 m clearance to the existing power pole while maintaining standard crossover design.

Project at a glance

Avoided need for localised flood study

Approval without a single RFI

Approval did not result in further conditions on the matter