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The
main objective of this study is to protect the Riviera Tourism
Center and the Coastal Road (on Aquaba Gulf) from flash flood
hazards through diverting the flash flood water in its natural path
in adequately designed drainage channels/culverts, and reducing the
acuteness of flash floods fronts through saving some of the water in
the natural low areas. In addition, the urban planning of the
Riviera Tourism Center will be developed in order to mitigate any
possible flash flood hazards.
For
this project, SDA has developed a specific methodology to deal
with the flash flood analysis and protection for the Riviera Center
in cooperation with the Architect Consultant, that have the
following steps:
| 1) |
Field survey of 16 wadis area
(longitudinal and cross-sections survey at selected points),
soil investigation, and rainfall historical data collections. |
| 2) |
Meteorological analysis of the
tourism Center and obtaining rainfall storms conforming with
(1, 5, 10, 20, 50, 100 years) return periods. |
| 3) |
Morphological analysis of the
wadis based on geographical maps to include branch numbering,
length and area analysis. |
| 4) |
Estimation of the hydrograph
response of the wadi for different storms return periods using
the hydro-morphological (computer-based) model. |
| 5) |
Delineation of flood risk zone
maps with their risk classifications (Very High, High, Medium,
Low, and None) based on water level, speed and recurrences. |
| 6) |
Calculation of various
existing damages due to flash floods on infrastructure, urban
development and economic activities for different return
periods, in cooperation with the Architect Consultant. |
| 7) |
Suggestions of options of
protection and mitigation measures and carrying out their
economical and financial feasibility. This leads to the
selection of the optimum solution. |
| 8) |
Carrying out the detailed
design of the selected solution, including construction
specification and bill of quantities for 14 different
structures. |
| 9) |
Preparation of the tendering
documents and methods of contractors’ evaluation. |
| 10) |
Supervision of execution and
approval of final work. |
| 11) |
Setting the procedure for the
regular maintenance of the protection measure especially after
the flash flood occurrences. |
| 12) |
Regular monitoring of the
protection measure for several rainfall storms to determine
its effectiveness. |
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The
service provided by SDA is of consulting nature where all consulting
work of the study, design, and supervision and work acceptance for
flash flood protection measures was carried out. Space Architect
carried out the urban planning studies of the region and method of
urban development that reduces the flash flood hazards. Arab
Contracting Company made the execution of the protection work.
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