Phoenix Flood Hydrology for Price Expressway

by Jerome J. Zovne, HDR Engineering, Inc., Austin, United States,
L. Steven Miller, HDR Engineering, Inc., Austin, United States,

Document Type: Proceeding Paper

Part of: Hydraulics/Hydrology of Arid Lands (H²AL)


Recently HDR Engineering, Inc. (HDR) completed a study of the off-site stormwater volumes and peak flow rates for the Price Expressway and Santan Freeway in suburban Phoenix. HDR is the General Engineering Consultant to the Arizona Department of Transportation (ADOT) and is preparing general roadway plans for the six mile length of Price Expressway and an initial five mile portion of the Santan Freeway. The roadways offer unique stormwater challenges because they will be constructed as depressed roadway sections through rapidly growing Phoenix suburban communities of Chandler, Mesa, Tempe and Gilbert. This paper summarizes the stormwater modeling approach for the complex 58 square mile drainage basin intercepted by these depressed roadways (see Figure 1).

Subject Headings: Highways and roads | Pricing | Floods | Hydrology | Stormwater management | Drainage basins | Peak flow | Traffic flow | Arizona | United States | Phoenix

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