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PERMFILE44162
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PERMFILE44162
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Last modified
8/24/2016 10:46:37 PM
Creation date
11/20/2007 11:50:37 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1999002
IBM Index Class Name
Permit File
Doc Date
4/20/1999
Doc Name
TR 1 TO APPLICATION RECLAMATION PLAN CHAPTER 8 & APPENDICES
From
DMG
To
AMERICAN SODA
Media Type
D
Archive
No
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<br />objectionable materials will be removed to avoid <br />berms will be periodically cleaned. Maintenance <br />are corrected immediately. <br /> <br />interference. Sediments accumulated against <br />activities will ensure that breaching hazards <br />Flow swctures may be unlined or lined for erosion protection. When lining materials are <br />specified they may be vegetative, reinforced substrate matrix materials with vegetation, <br />netting, various erosion control fabrics, riprap or some combination of these materials. <br />Reconswcted channels may use biotechnical stabiliTation measures for stabilization. Normally <br />these swctures will be conswcted from materials readily available on site. If local materials <br />are inadequate, special conswction materials will be imported from outside the area for specific <br />applications. Adequate compaction is critical to swcture function and appropriate linings are <br />required to protect the swctures from erosion. Particulaz attention will be paid to allowable <br />velocities for specific lining materials. <br />In reclaimed areas, reconswcted drainage channels will be placed as necessary to route runoff <br />through disturbed and restored areas and into undisturbed channels. Stabilization measures <br />will be judiciously employed to ensure long-term stability of reconswcted channels and <br />transition zones to undisturbed features. To the extent practicable, smooth channel transitions <br />will be made between reconswcted and undisturbed areas. <br />Adequate conswction procedures and material quality control are critical to concentrated flow <br />swcture performance. conswction inspections will be performed to ensure integrity of flow <br />swctures. Materials used on the project will meet or exceed swcture specifications. A <br />qualified engineer will develop site-specific designs for swctures where typical designs are <br />inadequate. <br />Unlined channels will be used as temporary swctures. Permanent channels will have at a <br />minimum a vegetation lining. Concentrated flow swctures will be maintained as necessary to <br />ensure function. Permissible velocity will be used to establish channel lining requirements. <br />Channel erosion control linings or gradient control swctures will be used where necessary to <br />ensure stability and to protect against excessive erosion of concentrated flow swctures. Where <br />such gradients are exceeded, appropriate lining materials will be used. <br />Vegetation linings provide the next level of stability over unlined channels. Vegetation linings <br />are relatively inexpensive to establish providing site moisture conditions allow adequate <br />growth. Vegetation species selection is very impomant in the establishment of an adequate <br />vegetation lining. Species used may include grasses, sedges, rushes, bullrushes, cattails or <br />other hydrophyllic, mat forming plant species. Higher velocity Flows may use mat or matrix <br />reinforced vegetation linings to improve root anchoring. Such subsurface reinforcing materials <br />will be applied per manufacturers' specifications. Erosion control blankets may be used to <br />improve surface stability of a concentrated flow swcture during the establishment of vegetation <br />linings. Various erosion control blankets are manufactured for different types and lengths of <br />application. When erosion control blankets are required to establish vegetation in Flow <br />swctures, the type used will be selected for the site according to anticipated plant establishment <br />periods and associated erosion protection needs. <br />Rip-rap may be used to line concentrated flow swcwres where steeper channel gradients are <br />necessary. Rip-rap sizing is critical to the success of this lining method. Materials used for <br />rip-rap linings will meet or exceed the specifications for rock sizing. Riprap sizing will be <br />determined using standardly accepted hydrologic engineering methods. Sizing requirements <br />for riprap will be specified in purchase orders and materials supplied subject to sizing <br />verification. Angular rock will be preferred over smoother materials. Geotextile fabric and <br />B-2 <br />
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