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Storm Water Management Plan Lawrence County, PA

Storm Water Management Plan Lawrence County, PA. Katelyn Zollos CE 549. Objective. To create a model of the Big Run watershed in Lawrence county and to make recommendations based off of this model to improve the area’s stormwater management. http://www.southnewcastle.com/. Study Area.

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Storm Water Management Plan Lawrence County, PA

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  1. Storm Water Management PlanLawrence County, PA Katelyn Zollos CE 549

  2. Objective To create a model of the Big Run watershed in Lawrence county and to make recommendations based off of this model to improve the area’s stormwater management. http://www.southnewcastle.com/

  3. Study Area Big Run Watershed Lawrence County Close to New Castle, Pennsylvania About 4 square miles

  4. Data PHASE ONE (Completed) Hydrologic conditions and Watershed Characteristics Problem areas from Community Survey PHASE TWO Streamflow and Rain Gauge Data Design Storms for 2-, 10-, 25-, 50-, and 100- year storm events Existing Stormwater facilities and flood control projects

  5. Techniques & Methodology Arc Hydro Digital Elevation Models (DEMs) to delineate subwatersheds Delineate stream network GeoHMS is used to create HMS Model is run for each of the 5 storms for each of the delineated subwatersheds Hydrographs found for each point Analysis of the model to find problem areas

  6. Final Products Recommendations for drainage improvements based off the subwatershedmodels. Tables for the rainfall depths at different frequency durations that are computed during modeling. http://www.fish.state.pa.us/anglerboater/photocontest/2002/02photoMAIN/02resources1.htm

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