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DRAINAGE SYSTEM AND STORM WATER MANAGEMENT FOR NDOLA CENTRAL BUSINESS AREA, ZAMBIA

Banda, David Titus LU (2016) VVRM01 20161
Division of Water Resources Engineering
Abstract
Flooding of urban areas is a worldwide problem as cities grow and the amount of impermeable surfaces increase generating more surface runoff. In the Zambian city of Ndola, the capital of the Copperbelt Province, flooding occurs in some parts of the city especially on Dag Hammarskjöld Drive at the underbridge, which has been flooding every rainy season consecutively for 8 years now. The main objective of the study was to assess the effectiveness of the storm water drainage system and management for Ndola Central Business Area (CBA) and to determine the possible changes, to avoid or minimise yearly flooding of the underbridge area.
Both hard and soft solutions approach were employed. The procedure comprised of field study, data collection,... (More)
Flooding of urban areas is a worldwide problem as cities grow and the amount of impermeable surfaces increase generating more surface runoff. In the Zambian city of Ndola, the capital of the Copperbelt Province, flooding occurs in some parts of the city especially on Dag Hammarskjöld Drive at the underbridge, which has been flooding every rainy season consecutively for 8 years now. The main objective of the study was to assess the effectiveness of the storm water drainage system and management for Ndola Central Business Area (CBA) and to determine the possible changes, to avoid or minimise yearly flooding of the underbridge area.
Both hard and soft solutions approach were employed. The procedure comprised of field study, data collection, modelling and analysis.
It was concluded that the major problem with the system are blockages resulting from garbage being thrown into the system as well as silt build-up that accumulates overtime. Additionally, changing the size of the draining water pipe (P27=600mm) from the underbridge area would improve the drainage systems’ rainfall events’ handling capacity to more than 10yrs return period without flooding.
Sustainable Urban Drainage Systems (SUDS) should be incorporated into the system in order to reduce and delay the peak flow downstream and subsequently in conduit P36 which contributes towards flooding by causing back water effects. Further studies should be conducted to ascertain specific SUDS adapted for the region owing to climatology and industrial activities. (Less)
Popular Abstract
A ROAD OR CANAL???

Dag Hammarskjöld Drive has been temporarily transformed into a canal at least once every year since 2009 in the city of Ndola, Zambia. However, is this intentional or circumstantial? The fact that it is one of the most important and busy roads for the city, rules out the intentional perspective. If not intentional, then the subsequent question is: what circumstances could lead to the flooding of the road?
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author
Banda, David Titus LU
supervisor
organization
course
VVRM01 20161
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Underbridge, Ndola, Central Business Area (CBA), Sustainable Urban Drainage System (SUDS), Storm Water Management Model (SWMM), Flooding.
report number
TVVR-16/5007
ISSN
1101-9824
language
English
id
8881147
date added to LUP
2016-06-21 09:20:55
date last changed
2016-07-12 09:28:34
@misc{8881147,
  abstract     = {Flooding of urban areas is a worldwide problem as cities grow and the amount of impermeable surfaces increase generating more surface runoff. In the Zambian city of Ndola, the capital of the Copperbelt Province, flooding occurs in some parts of the city especially on Dag Hammarskjöld Drive at the underbridge, which has been flooding every rainy season consecutively for 8 years now. The main objective of the study was to assess the effectiveness of the storm water drainage system and management for Ndola Central Business Area (CBA) and to determine the possible changes, to avoid or minimise yearly flooding of the underbridge area.
Both hard and soft solutions approach were employed. The procedure comprised of field study, data collection, modelling and analysis. 
It was concluded that the major problem with the system are blockages resulting from garbage being thrown into the system as well as silt build-up that accumulates overtime. Additionally, changing the size of the draining water pipe (P27=600mm) from the underbridge area would improve the drainage systems’ rainfall events’ handling capacity to more than 10yrs return period without flooding.
Sustainable Urban Drainage Systems (SUDS) should be incorporated into the system in order to reduce and delay the peak flow downstream and subsequently in conduit P36 which contributes towards flooding by causing back water effects. Further studies should be conducted to ascertain specific SUDS adapted for the region owing to climatology and industrial activities.},
  author       = {Banda, David Titus},
  issn         = {1101-9824},
  keyword      = {Underbridge,Ndola,Central Business Area (CBA),Sustainable Urban Drainage System (SUDS),Storm Water Management Model (SWMM),Flooding.},
  language     = {eng},
  note         = {Student Paper},
  title        = {DRAINAGE SYSTEM AND STORM WATER MANAGEMENT FOR NDOLA CENTRAL BUSINESS AREA, ZAMBIA},
  year         = {2016},
}