20091224 Ver 1_Modifications_20130218

Wainwright, David
From: Johnson, Jay B
Sent: Monday, February 18, 2013 11:09 AM
To: Ward, Garcy; Steffens, Tom; Lane, Stephen; Wainwright, David
Cc: Brame, Bill Jr.; Bunn, Eddie J; Blankenship, Andrew; Eatmon, Bryce E; Kincannon, William
C.; Brickhouse, Joseph W; Jarvis, Elwood C
Subject: FW: B3611 Belhaven
Attachments: RtDrive &Ditch Revisions. pdf
Gentleman, Please find attached a revised plan to address the concerns of retaining the
existing pavement to keep access to the canal. "Option 3" was chosen over the other options
as follows:
Option 1: Build according to plan. This will not provide vehicular access to the causeway
beyond the parking area, but we already have the permits.
Option 2: Reduce or eliminate the 5' berm on the grassed Swale detail. As long as the
grassed Swale dimensions, grade, length, etc. are not changed, it will still provide the
required treatment. It looks like this would provide 12' of clearance from the back slope of
the proposed Swale to the ex. EP. The grassed Swale would essentially begin and end at the
same places as it does now on the plans.
Option 3: Pipe flow from 2GI 4 line ahead to new 7B @ -L- Sta. 62 +00 Rt. + / -, and pipe it
through the guardrail to release to a relocated grassed Swale from -L- Sta. 62 +00 to -L- Sta.
63 +00 Rt. + / -. Again, grassed Swale would need to have same dimensions, etc. as noted in
Option 2 above, with min. length of 100'. The relocated grassed Swale would then drain into
the tidal canal on plan sheet 8. No redesign comps have been performed, but it appears that
it would work.
The changes in option three that we propose is that we will not be draining the grassed Swale
directly into the canal, we are doing 115' of grassed Swale instead of the minimum 100' and
Swale is designed so that if it overtops will sheet flow over vegetated uplands into the
canal for additional treatment.
Please let me know if you need additional information.
- - - -- Original Message---- -
From: Brickhouse, 7oseph W
Sent: Thursday, February 14, 2013 4:08 PM
To: 7ohnson, lay B
Subject: FW: B3611 Belhaven
lay, let me know if you need any addition info.
- - - -- Original Message---- -
From: Cox, Timmy L
Sent: Thursday, February 14, 2013 10:09 AM
To: 7ohnson, lay B
Cc: Brickhouse, 7oseph W
Subject: B3611 Belhaven
FYI. Let me know if this is ok.
1

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