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Agenda - 04-19-2005-9c
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Agenda - 04-19-2005-9c
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Last modified
9/2/2008 1:19:26 AM
Creation date
8/29/2008 10:16:45 AM
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Fields
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BOCC
Date
4/19/2005
Document Type
Agenda
Agenda Item
9c
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i~ <br />Area designated for multi-use field <br />225' x 360' <br />Adult soccer field 195' x 300' <br />Field Hockey 150' x 300' <br />Lacrosse 150' x 360' <br />The best orientation of a multi-use field should be North-South to take into <br />consideration sun patterns, but existing topography also may influence <br />orientation. <br />After all parties involved in the planning of the field have accepted a concept <br />plan, the designer then will detail the project with a series of plans to instruct the <br />contractor on how to build the field, Project elements should be arranged on the <br />site and a layout plan created. The layout plan will communicate to the contractor <br />where the appropriate elements should be staked and provide accurate <br />dimensions. A grading plan and a planting plan are also communicated to the <br />contractor to establish final grades and install the required landscape material, <br />Erosion control measures are also included in the grading plan, <br />A key element in the design of a multi~~use field is drainage, Athletic fields should <br />always be designed as a single, individual drainage unit, where there should be <br />no wafer from adjacent areas flowing on to the field, A field with contours <br />supporting positive drainage and correct soil amenities will provide proper <br />infiltration and percolation. Existing topography of the site is important to <br />understand because the earth-moving phase of construction will most likely be <br />the biggest cost of the project. The existing topography reflects natural drainage <br />patterns, which should remain consistent after regrading has occurred. <br />Drastically disturbing the drainage patterns could disturb soil layers and interrupt <br />natural infiltration. <br />Multi-use athletic fields should ideally be designed to drain with a crowned <br />surface with level touchlines. The slope from the center ridge to the sidelines <br />should be between 1 % -1,75%, depending on the soils of the site and the turf <br />used. Side to side sloped fields can work if existing contours better reflect this <br />layout, However, sloping a field from end to end should be avoided because the <br />low end of the field almost always stays wet and puts stress on the soil and turf. <br />
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