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Exercise 1: Following the Flow (Example)
The following aerial photograph of the Portsmouth DOT facility was taken from Google Maps. An outline of the facility is purple was added. Please note that the following information is an example. The information was collected from on-line sources only and has not been field tested. Any information contained in this example should not be taken as fact.
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Exercise 1 - Example 1. Draw a facility map 2. Draw flow paths
Bulk Materials Storage 1. Draw a facility map Grass 2. Draw flow paths 3. Find discharge point Sand Pile 4. What is downstream? Office and Maintenance Storage This is a sketch of the Portsmouth DOT facility. It gives an example of those things that should be put on your facility map. NOTE: THE INFORMATION PRESENTED HERE IS THEORETICAL, THE FLOW PATHS WERE NOT OBSERVED IN THE FIELD, THE DRAINAGE DIRECTIONS AND STORMDRAINS WERE NOT OBSERVED IN THE FIELD. THIS EXAMPLE IS MEANT ONLY TO BE AN EXAMPLE OF HOW TO COMPLETE THE EXERCISE. Pavement
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Downstream Flow Path This aerial image was used to determine where the water goes when it leaves the site. The red arrows indicate that the water flows in culverts under the highway towards a golf course. NOTE: THE INFORMATION PRESENTED HERE IS THEORETICAL, THE FLOW PATHS WERE NOT OBSERVED IN THE FIELD, THE DRAINAGE DIRECTIONS AND STORMDRAINS WERE NOT OBSERVED IN THE FIELD. THIS EXAMPLE IS MEANT ONLY TO BE AN EXAMPLE OF HOW TO COMPLETE THE EXERCISE.
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Site Elevation: Elevation Map of Area Surrounding DPW from RIDEM Data Viewer
What is the elevation like at the site? This can help you determine where the water goes after it leaves the site. The red circle indicates the site. Note that this area is relatively flat.
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Site Overview – Aerial Photograph from Google Maps
The Cove This is another view of the site using google maps aerial imagery. Note that after the water flows under the highway it then goes toward the nearby golf course. At the point it leaves the site, you would have to investigate where the stormdrains discharge. If is happened to ultimately discharge into “The Cove” through another stormdrain system, or if the stormdrain discharged into a stream that flowed into “The Cove”, this could have an impact on the water quality of “the cove”. The cove is listed with RIDEM as having bacterial loading problems. NOTE: THE INFORMATION PRESENTED HERE IS THEORETICAL, THE FLOW PATHS WERE NOT OBSERVED IN THE FIELD, THE DRAINAGE DIRECTIONS AND STORMDRAINS WERE NOT OBSERVED IN THE FIELD. THIS EXAMPLE IS MEANT ONLY TO BE AN EXAMPLE OF HOW TO COMPLETE THE EXERCISE.
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Site Overview – Aerial Photograph from Google Maps
This aerial image also taken from google maps gives you an idea of where the water would flow after leaving “the cove”, if the water happened to discharge to this location. The cove is connected to the Sakonnet River, part of Narragansett Bay. NOTE: THE INFORMATION PRESENTED HERE IS THEORETICAL, THE FLOW PATHS WERE NOT OBSERVED IN THE FIELD, THE DRAINAGE DIRECTIONS AND STORMDRAINS WERE NOT OBSERVED IN THE FIELD. THIS EXAMPLE IS MEANT ONLY TO BE AN EXAMPLE OF HOW TO COMPLETE THE EXERCISE. Prudence Is. Sakonnet R.
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