HomeMy WebLinkAboutSDP200800086 Review Comments Road Plan and Comps. 2009-06-01Page 1 of 3
Amy Pflaum
From: DeNunzio, Joel D., P.E. [Joel .DeNunzio @VDOT.virginia.gov]
Sent: Monday, June 01, 2009 1:57 PM
To: Amy Pflaum
Subject: FW: Willow Glen Subdivision, Albemarle County
SDP - 2008 -00086 Willow Glen Bridge Design
Amy,
I received a con span design for the above project. After VDOT's last review of this project we sent the below e
mail to the Francis MacCall at the county. We believe this structure is hydraulically over designed and will not
commit to the maintenance of the structure until the contents of the below e-mail have been submitted, reviewed
and approved by our VDOT District Hydraulics Engineer.
If you have any questions, please let me know.
Thanks
Joel
Joel DeNunzio, P.E.
Staff Engineer
434 - 293 -0011 Ext. 120
joel.denunzio @vdot.virginia.gov
From: Denunzio, Joel D., P.E.
Sent: Monday, November 24, 2008 2:02 PM
To: 'fmaccall @albemarle.org'
Subject: Willow Glen Subdivision, Albemarle County
Willow Glen Subdivision, Albemarle County
Francis,
We have reviewed the drainage areas for the con span on this development and received guidance from our
State Hydraulics Engineer below. The con span is an oversized structure and VDOT will need the documentation
listed in the below e -mail to approve this structure to be accepted for state maintenance.
If you have any questions, please contact me.
Thanks,
Joel
Joel DeNunzio, P.E.
Staff Engineer
434 - 293 -0011 Ext. 120
joel.denunzio @vdot.virginia.gov
6/1/2009
Page 2 of 3
From: Kindy, Stephen D., P.E.
Sent: Monday, October 20, 2008 08:57 AM
To: Viar, Michael E.
Subject: RE: Oversized Culverts
Mike,
The designer /developers need to demonstrate to you why they need to do what they are proposing. We (VDOT)
generally utilize a three tiered approach ourselves in these circumstances, avoid, minimize, and mitigate. At a
minimum we need to determine that these folks have explored all other reasonable alternatives before deciding
on this approach. You might want to check with the COE directly to find out what the situation is. It should be
verified that what designer /developers are proposing is the minimum required. If it is the best that they can do
given the circumstances, than we will have to consider accepting it. You may want to review the information that
you garner with your Environmental Division associates to get their read on it as well.
Stephen D. Kindy, P.E.
State Hydraulics Engineer I ESC & SWM Programs Manager I Virginia Department of Transportation 1
1401 East Broad Street, Richmond, VA 23219 1804.786.6016 Phone 1 804.225.3686 fax I Stephen.Kindy @VDOT.Virginia.gov I www.virginiadot.org
From: Viar, Michael E.
Sent: Monday, November 10, 2008 02:42 PM
To: Denunzio, Joel D., P.E.
Subject: FW: Willow Glen Subdivision, Albemarle County
Joel,
As anticipated, the 41.56 acre watershed for the con span is only generating 77.5 cfs Q10. When this flow applied
to a 48" RCP with a headwall, it will run precisely full at a depth of 4'.
They still need to demonstrate why the con span is required.
I am sending the plans back with Alan today. The only item I needed from them was the drainage area map and
computations.
Michael E. Viar
Hydraulic /Plan Review Engineer
VDOT - Culpeper District Office
540 - 829 -7549
From: Viar, Michael E.
Sent: Thursday, October 09, 2008 08:27 AM
To: Denunzio, Joel D., P.E.
Subject: Willow Glen Subdivision, Albemarle County
Joel,
If you get a chance to talk to Steven Edwards about the Willow Glen con span, ask him to provide us hydrology
(drainage area map) and hydraulic comps. I think we should also see any documentation they have from the
COE, that requires them to preserve that particular reach of stream. If they can mitigate elsewhere on their site,
we should push them to do so. We need to know what is driving this structure design. My new numbers show that
a 48" pipe may be adequate.
Michael E. Viar
Hydraulic /Plan Review Engineer
6/1/2009
Page 3 of 3
VDOT - Culpeper District Office
540 - 829 -7549
6/1/2009