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Hydraulic Analysis for the Shot Tower Subway Station Beneath the Jones Falls

by Michael A. Ports, Quade & Douglas, Inc, Baltimore, United States,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract:

The objective of the hydraulic analysis is the formulation of a strategy to safely accommodate the construction of the Shot Tower Metro Station beneath the existing Jones Falls. The hydraulic analysis is complicated by the fact that the existing Jones Falls flows underneath downtown Baltimore through three parallel conduits from their upstream portal downstream into the Inner Harbor, a total distance of more than 9,000 feet. The hydraulic analysis is accomplished in two phases. The first phase is the formulation of a hydraulic model to route flood flows overland through downtown Baltimore into the Inner Harbor, including the determination of that portion of the runoff which bypasses the portal and flows overland. The hydraulic model is then used to determine the water surface profile for the 100-year frequency flood so that the subway station entrances, vents, and other appurtenant structures may be elevated. In order to develop the strategy necessary for cut-and-cover construction, the second phase of the hydraulic analysis is the formulation of another hydraulic model to route flows through the three parallel conduits.

Subject Headings: Hydraulic models | Flood routing | Subways | Flow profiles | Railroad stations | Occupational safety | Hydraulics | Baltimore | Maryland | United States

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