Hong Kong – Director of Drainage Services inspects flood prevention works (with photos)

Director of Drainage Services inspects flood prevention works (with photos)


     The Director of the Drainage Services, Ms Alice Pang, today (May 12) inspected several flood prevention facilities to understand the department’s work in coping with the rainy season and recent unstable weather.

     Ms Pang and the Deputy Director of Drainage Services, Mr Peter Chui Si-kay, first visited the drainage facilities at Shau Kei Wan Main Street East to understand the drainage condition in the vicinity. Shau Kei Wan Main Street East is located in the low-lying area of the district. During heavy rain in the past, the drains were blocked by litters, fallen leaves or other washouts carried down by surface runoff and resulted in flooding. The Drainage Services Department (DSD) had laid new drains nearby earlier to accelerate the dissipation of stormwater to relieve flood risks.

     Ms Pang then visited several locations to inspect the drainage system clearance work of flooding blackspots and the drainage performance of the newly constructed drainage facilities to ensure the flood prevention measures are functioning well.

     The DSD is now carrying out the Stage 2 drainage improvement works in Pok Fu Lam Village to intercept and divert upstream stormwater to the existing drainage system. The DSD had also completed a number of minor drainage improvement works in the vicinity of Chatham Road South to increase the capacity of the drainage system. To further lower the flood risks in Tsim Sha Tsui district, the DSD is now implementing the Drainage Improvement Works in Tsim Sha Tsui, which includes the construction of an underground storage tank beneath the Urban Council Centenary Garden and addition of drains at nearby streets.

     Ms Pang also visited the DSD’s Emergency Control Centre (ECC). When a Red or Black Rainstorm Warning signal is hoisted, a special announcement on Flooding in the northern New Territories is issued, or the Tropical Cyclone Warning Signal No. 8 or higher is in force, the ECC will be activated immediately to ensure flood prevention facilities are working well by monitoring the condition of the major channels, intakes, drainage tunnels and underground stormwater storage tanks via the real-time surveillance system. Additional staff and resources will also be deployed to cope with flooding cases.

     Before rainy season, the DSD will inspect the drainage facilities and carry out desilting work. Ms Pang had inspected the flood prevention facilities, including the drainage tunnels and rivers before this rainy season, to understand the pre-rainy season preparatory work. During rainy season, in addition to regular inspection and clearance of drains, the DSD also implements the “just-in-time clearance” measure and deploys staff before the onset of rainstorm to inspect about 200 locations which are susceptible to blockage by litter, fallen leaves or the like, and will immediately arrange for clearance works if necessary to guarantee the drainage system is in good condition.

     To further enhance Hong Kong’s flood prevention standard, the DSD continues to adopt new technologies including the use of a river desilting robot and a remotely operated pipeline inspection robot, as well as the installation of CCTV at the major intakes of drainage tunnels to improve the efficiency and safety of the maintenance work of the drainage system.

     The DSD urged the public to keep drains clear at all times and prevent the blocking of drainage intakes. The public should immediately call the 24-hour Drainage Hotline at 2300 1110 if abnormalities with public drainage facilities are found.

D.U.N.E Defender (Drainage Under Natural Environment Defender) Patents Coastal Resiliency Protection

Green Infrastructure System combines Natural Defenses and Man-Made Drainage and Pedestrian Access to protect coastlines, wetlands and riverine environments.

JUPITER, Fla.Jan. 25, 2022PRLog — Global Integrated Assets, LLC  announced today that it had achieved patent protection for its green infrastructure system, D.U.N.E. Defender (Drainage Under Natural Environment Defender) to provide omnichannel shoreline protection from sea-level rise, storm surge and other flooding events. D.U.N.E. Defender adds another arrow in the climate resiliency defense quiver for governments, communities, corporations and homeowners. The D.U.N.E. Defender System combines and enhances natural shoreline defenses like sand dunes, marshes, riverbanks, etc. with an innovative modified pre-cast concrete drainage structure. The structure enhances the natural defenses and provides pedestrian access in an aesthetically pleasing way.

Billions of dollars of damage to infrastructure, homes and commercial properties is focusing attention on resiliency planning. In the United States in 2021, there were twenty meteorological events that accounted for over $1 billion in damage, each. Natural defenses like dunes and marshes have provided protection for millennia, but these more intense storms are proving that even Mother Nature needs assistance. Additionally, the US Census Bureau estimates that 29% of the US population lives within coastline counties with 28.7% of businesses also operating within those counties, putting many people, businesses and infrastructure at risk from flooding events.

D.U.N.E. Defender will:

  • Utilize precast concrete drainage culverts modified to include drainage inlets along their top side;
  • Be integrated into the dune or other natural defenses to be unobtrusive to the environment;
  • Be topped by a pedestrian boardwalk providing access to a coastline in an aesthetically pleasing way;
  • The culvert will be integrated into the natural environments to hide it from view while still allowing floodwaters that overtop the natural environment to drain to the interior of the culvert;
  • The floodwaters will be directed to planned holding areas or redirected out to the body of water from which they came.

Edmond (“Ed”) Prins, AIA, CEO said, “Being of Dutch descent, I witnessed first-hand how the people of the Netherlands successfully battled the North Sea utilizing innovative infrastructure and the protection of natural defenses.” He continued, “D.U.N.E. Defender is designed to combine the best of both worlds, modifying concrete culverts to allow for drainage of flooding waters that overtop any natural environments and combining them with natural defenses to produce more effective protection for all manner of shorelines.”

D.U.N.E. Defender is the culmination of several years of research and design. Prins said, “My background in architecture and real estate development allowed me to look at utilizing existing combinations of man-made structures in new and innovative ways to help mitigate the effects of these enhanced events.” Until now most products like steel and concrete seawalls, stone groins and jetties have been used extensively but are not visually unobtrusive, sometimes block access, or in many cases, do not truly provide environmentally effective protection from flooding events.

D.U.N.E. Defender is the first of several new resiliency-focused products in the development stage. With more intense and frequent storms, these products including D.U.N.E. Defender will aid governments, communities, businesses and homeowners to be resilient and mitigate the huge financial losses and human impacts of these events.

Global Integrated Assets, LLC

Global Integrated Assets (“http://www.globalintegratedassets.com”) is a global management consulting firm committed to partnering with business and governmental leaders to address their challenges and develop and implement strategic solutions for operational, financial and social impact from owned and leased fixed assets. GIA’s strategic solutions transform the way these organizations work, creating change and value for all of their stakeholders. Visualizing a fully integrated organization, GIA’s solutions create agile, resilient and sustainable changes that will contribute to ESG initiatives by understanding the interdependencies between an organization’s people, place and business ecosystem.

Edmond “Ed” Prins, AIA, Founder and Principal of Global Integrated Assets is an architect and urban planner and a life-long corporate asset integrator who has provided financially-driven Integrated Asset solutions to over 40 of the Fortune 1000 C-Suites. Throughout his career, he created bottom-line returns of over $1.6 billion through the creation and implementation of these Integrated Asset solutions, which have produced enhanced transactions, operational improvements, sustainability, and resiliency results.

Edmond “Ed” Prins