- Located away from active channels 



- Long and narrow 



- Orientated parallel to the flow 



- Of sufficient height to be above the 2-year flood 



- Armored on the active channel side to prevent 

 erosi on 



Refer to Figure 8. 



• If insufficient space exists within the mined area 

 away from active channels this material may be stored 

 in: 



- An approved disposal area 



- An upland area 



- Other material sites 



- Unvegetated inactive floodplains 



7. Settling ponds are recommended if the materials are to be washed 

 within the material site. Ponds should be protected with dikes de- 

 signed for the 10-year flood. Ponds generally should be located as 

 far from the active channel as possible. See Appendix F for guidelines 

 to be considered in the design of settling ponds. 



B. SPECIFIC GUIDELINES FOR SCRAPED SITES 



I. Material sites worked during the open-water season should be pro- 

 tected from flows corresponding to at least the 2-year recurrence 



44 V. SITE PREPARATION 



