SHADOW MOUNTAIN FLOODING INFORMAITON
DESCRIPTION
Major stormwater runoff is occurring on the South of slopes of Mt. Elden. As a result the Shadow Mountain residents are experiencing devastating flooding destruction.
When
May 2023
Who
Sydney Wilson, Carleigh Jones, Shanya Whitehorse
CUL DE SAC DRAINAGE DESCRIPTION
The only preexisting infrastructure found in the Shadow Mountain residential area, is a single catch basin located on the west end of the E. Appalachian Rd. cul-de-sac. All stormwater runoff coming into the cul-de-sac from Mt. Elden collects into the catch basin and then is transported through a double CMP culvert.

HYDROLOGIC ANALYSIS DESCRIPTION
The ADOT Rational Method Tool was used to determine the natural runoff occurring in the Shadow Mountain area. This information was then used as a major design criteria for the final design.

AERIAL VIEW OF FLOODING AND PREEXISTING STORMWATER INFRASTRUTURE

HYDROLOGIC ANALYSIS

SUB-AREA DESCRIPTION
To run the ADOT Rational Method Tool, the watershed was split up into three sub-areas less than 160 acres. These sub-areas are shown below where the sub-area outlined in magenta is sub-area 1. The area outlined in dark blue is sub-area 2. The area outlined in orange is sub-area 3.

ADOT RATIONAL METHOD TOOL DESCRIPTION
The discharge for the 100-year storm event was the design parameters used for the final design.
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SHADOW MOUNTAIN DRAINAGE DESIGN ALTERNATIVE
Come check out the details of the design alternatives looked at for the Shadow Mountain area!
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Last Updated 2023