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Notes Topographic Grading Exercises.pptx

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					                     Notes: Topographic Grading Exercises

                 •   First Four Slides show how the exercise is presented to
                     the students. On the left hand side they are presented
                     with the four exercises they must solve.

                 •   The students are provided with printed worksheets that
                     match the exercises in this PowerPoint

                 •   As the class works through each of the exercises the
                     solution for each is revealed before proceeding to the next.
                     There are four exercises per sheet.

                 •   The goal of these exercises is to teach and not to test.




April 21, 2012                        Site Planning & Environmental Studies
                     Topography
                     W-1 to W-5                           Show the direction that water flows
TOPOGRAPHY
 EXERCISES

HOW DOES THE
                 •    Steps to follow:
WATER FLOW?
     . .

REDIRECT THE
                 •    First mark an H for High and an L for Low at each high and
   WATER
    . . .
                      low point. It may also help to label the “Ridges” and the
                      “Swales”.
GRADE A ROAD
     . .

GRADE AROUND     •    Next draw lines at 90 degrees to the contours to indicate
   A HOUSE
    . . .             the flow of water.
INTERPOLATION
     . .
                 •    Now add arrowheads to these lines to indicate which
                      direction the water flows.

                 •    Check your work by yourself or with a friend.


April 21, 2012                           Site Planning & Environmental Studies
                 Topography
                 W-1                           Show the direction that water flows
TOPOGRAPHY
 EXERCISES

HOW DOES THE
WATER FLOW?
     . .

REDIRECT THE
   WATER
    . . .

GRADE A ROAD
     . .

GRADE AROUND
   A HOUSE
    . . .

INTERPOLATION
     . .




April 21, 2012                Site Planning & Environmental Studies
                 Topography
                 W-2                           Show the direction that water flows
TOPOGRAPHY
 EXERCISES

HOW DOES THE
WATER FLOW?
     . .

REDIRECT THE
   WATER
    . . .

GRADE A ROAD
     . .

GRADE AROUND
   A HOUSE
    . . .

INTERPOLATION
     . .




April 21, 2012                Site Planning & Environmental Studies
                 Topography
                 W-3                           Show the direction that water flows
TOPOGRAPHY
 EXERCISES

HOW DOES THE
WATER FLOW?
     . .

REDIRECT THE
   WATER
    . . .

GRADE A ROAD
     . .

GRADE AROUND
   A HOUSE
    . . .

INTERPOLATION
     . .




April 21, 2012                Site Planning & Environmental Studies
                 Topography
                 W-4                           Show the direction that water flows
TOPOGRAPHY
 EXERCISES

HOW DOES THE
WATER FLOW?
     . .

REDIRECT THE
   WATER
    . . .

GRADE A ROAD
     . .

GRADE AROUND
   A HOUSE
    . . .

INTERPOLATION
     . .




April 21, 2012                Site Planning & Environmental Studies
                 Topography
                 W-5                           Show the direction that water flows
TOPOGRAPHY
 EXERCISES

HOW DOES THE
WATER FLOW?
     . .

REDIRECT THE
   WATER
    . . .

GRADE A ROAD
     . .

GRADE AROUND
   A HOUSE
    . . .

INTERPOLATION
     . .




April 21, 2012                Site Planning & Environmental Studies
                 Topography
                     R-1 to R-3                             Redirect the water using only cut
TOPOGRAPHY
 EXERCISES
                 •     This second set of exercises asks students to do the
HOW DOES THE
WATER FLOW?            following:
     . .

REDIRECT THE
   WATER                § Read the existing topography and diagram the existing
    . . .
                          flow of water
GRADE A ROAD
     . .

GRADE AROUND            § To determine the desired or “new” flow of water
   A HOUSE
    . . .

INTERPOLATION           § To modify the topography using the “cut” technique
     . .                  only to redirect the flow of water.

                 •     Each additional set of problems increases the level of
                       difficulty to build upon the lessons of the previous.


April 21, 2012                          Site Planning & Environmental Studies
                 Topography
                 R-1                              Redirect the water using only cut
TOPOGRAPHY
 EXERCISES

HOW DOES THE
WATER FLOW?
     . .

REDIRECT THE
   WATER
    . . .

GRADE A ROAD
     . .

GRADE AROUND
   A HOUSE
    . . .

INTERPOLATION
     . .




April 21, 2012                Site Planning & Environmental Studies
                 Topography
                     R-2                                     Redirect the water using only fill
TOPOGRAPHY
 EXERCISES

HOW DOES THE
WATER FLOW?
                 •    This third set of exercises follows the same steps as the
     . .

REDIRECT THE          previous exercises except that students are asked to
   WATER
    . . .

GRADE A ROAD
                      modify the topography using the “fill” technique only
     . .

GRADE AROUND          to redirect the flow of water.
   A HOUSE
    . . .

INTERPOLATION
     . .




April 21, 2012                          Site Planning & Environmental Studies
                 Topography
                 R-2                               Redirect the water using only fill
TOPOGRAPHY
 EXERCISES

HOW DOES THE
WATER FLOW?
     . .

REDIRECT THE
   WATER
    . . .

GRADE A ROAD
     . .

GRADE AROUND
   A HOUSE
    . . .

INTERPOLATION
     . .




April 21, 2012                Site Planning & Environmental Studies
                 Topography
                     R-3                            Redirect the water using both cut & fill
TOPOGRAPHY
 EXERCISES

HOW DOES THE
WATER FLOW?
                 •    This fourth set of exercises follows the same steps as the
     . .

REDIRECT THE          previous exercises except that students are asked to
   WATER
    . . .

GRADE A ROAD
                      modify the topography using a combination of the “cut”
     . .

GRADE AROUND          and “fill” techniques to redirect the flow of water.
   A HOUSE
    . . .

INTERPOLATION
                      This is the balanced approach.
     . .




April 21, 2012                          Site Planning & Environmental Studies
                 Topography
                 R-3                      Redirect the water using both cut & fill
TOPOGRAPHY
 EXERCISES

HOW DOES THE
WATER FLOW?
     . .

REDIRECT THE
   WATER
    . . .

GRADE A ROAD
     . .

GRADE AROUND
   A HOUSE
    . . .

INTERPOLATION
     . .




April 21, 2012                Site Planning & Environmental Studies
                     Topography
                     RD-1                                 Re-grade for the road as directed
TOPOGRAPHY
 EXERCISES

HOW DOES THE     •    This fifth exercise asks students to modify the contours as
WATER FLOW?
     . .
                      needed to accommodate a road. They should look to solve
REDIRECT THE
   WATER
    . . .             the problem as follows:
GRADE A ROAD
     . .         •    Using Cut only
GRADE AROUND
   A HOUSE
    . . .
                 •    Using Fill only
INTERPOLATION
     . .         •    Simple balanced approach using both Cut and Fill

                 •    Advanced balanced approach that includes both Cut and

                      Fill and the use of drainage swales on both edges

                      of the road.
April 21, 2012                          Site Planning & Environmental Studies
                 Topography
                 RD-1                             Re-grade for the road as directed
TOPOGRAPHY
 EXERCISES

HOW DOES THE
WATER FLOW?
     . .

REDIRECT THE
   WATER
    . . .

GRADE A ROAD
     . .

GRADE AROUND
   A HOUSE
    . . .

INTERPOLATION
     . .




April 21, 2012                Site Planning & Environmental Studies
                     Topography
                     G-1                                  Re-grade for the building as directed
TOPOGRAPHY
 EXERCISES

HOW DOES THE
                 •    The sixth & seventh exercises ask students to modify the contours as
WATER FLOW?
     . .              needed to accommodate a single house. They should look to solve
REDIRECT THE
   WATER              the problem as follows:
    . . .

GRADE A ROAD     •    Understand the existing flow of water.
     . .

GRADE AROUND     •    Determine the desired flow of water
   A HOUSE
    . . .
                 •    Check the finish floor of the house and first move the contour just
INTERPOLATION
     . .
                      below to wrap around the house

                 •    Modify contours both above and below to complete

                 •    This problem should be solved using a balanced approach

                      of both Cut and Fill.
April 21, 2012                                Site Planning & Environmental Studies
                 Topography
                 G-1                      Re-grade for the building as directed
TOPOGRAPHY
 EXERCISES

HOW DOES THE
WATER FLOW?
     . .

REDIRECT THE
   WATER
    . . .

GRADE A ROAD
     . .

GRADE AROUND
   A HOUSE
    . . .

INTERPOLATION
     . .




April 21, 2012                Site Planning & Environmental Studies
                 Topography
                 G-2                      Re-grade for the building as directed
TOPOGRAPHY
 EXERCISES

HOW DOES THE
WATER FLOW?
     . .

REDIRECT THE
   WATER
    . . .

GRADE A ROAD
     . .

GRADE AROUND
   A HOUSE
    . . .

INTERPOLATION
     . .




April 21, 2012                Site Planning & Environmental Studies
                     Topography
                     G-1                                  Re-grade for the building as directed
TOPOGRAPHY
 EXERCISES

HOW DOES THE
                 •    The eight exercises ask students to modify the contours as needed to
WATER FLOW?
     . .              accommodate two house. It combines the previous two problems.
REDIRECT THE
   WATER              They should look to solve the problem as follows:
    . . .

GRADE A ROAD     •    Understand the existing flow of water.
     . .

GRADE AROUND     •    Determine the desired flow of water
   A HOUSE
    . . .
                 •    Check the finish floor of each of the houses and first move the
INTERPOLATION
     . .
                      contours just below each to wrap around the house

                 •    Modify contours both above and below to complete

                 •    This problem should be solved using a balanced approach

                      of both Cut and Fill.
April 21, 2012                                Site Planning & Environmental Studies
                 Topography
                 G-3                      Re-grade for the building as directed
TOPOGRAPHY
 EXERCISES

HOW DOES THE
WATER FLOW?
     . .

REDIRECT THE
   WATER
    . . .

GRADE A ROAD
     . .

GRADE AROUND
   A HOUSE
    . . .

INTERPOLATION
     . .




April 21, 2012                Site Planning & Environmental Studies

				
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