HomeMy WebLinkAboutWPO201100043 Review Comments Erosion Control Plan 2012-06-26Philip Custer
From:
Philip Custer
Sent:
Tuesday, June 26, 2012 12:14 PM
To:
'Alan Franklin'
Subject:
Bramley
Alan,
I have reviewed the latest submittal of the Bramley Farm application and I have a few followup questions:
-Are these MS -19 cross - sections taken from a specific field survey or were they based off the two foot contours? Are the
cross - sections marked in the field? When we were on site, I thought I saw a more defined channel downstream of this
outlet than one with 9:1 side slopes
-From Table 5.22 of the VESCH, what is the permissible velocities for these cross - sections? Are the permissible velocities
uniform across each cross - section?
-How did you compute an N -value of 0.3? VESCH Tables 5 -16 through 5 -20 should be used to find this value.
-How is trap 1 to be converted to a level spreader? Would the owner be willing to fence off some of meadow to
preserve where the natural level spreading is already occurring now, rather than constructing a new one?
Thanks,
Phil