HomeMy WebLinkAboutSUB201300025 Correspondence Road Plan and Comps. 2013-06-17 Naive
Michael Koslow
From: Austin, Nathran. (VDOT) [Nathran.Austin @vdot.virginia.gov]
Sent: Monday, June 17, 2013 2:25 PM
To: Michael Koslow
Subject: RE: Old Trail Village Block 14 Road Plan (SUB2013-00025)
Attachments: SUB-2013-00025 Old Trail Block 14- Review Comments -6-17-13.pdf
Follow Up Flag: Follow up
Flag Status: Flagged
Troy Austin, P.E.
Area Land Use Engineer
Virginia Department of Transportation
Land Development—South
Culpeper District
P.O. Box 1017
Troy,VA 22974
Phone: (434) 589-5871
Fax: (434) 589-3967
From: Michael Koslow [mailto:mkoslow(aalbemarle.orq]
Sent: Monday, June 17, 2013 11:10 AM
To: Austin, Nathran. (VDOT)
Cc: DeNunzio, Joel D., P.E. (VDOT)
Subject: RE: Old Trail Village Block 14 Road Plan (SUB2013-00025)
Hi Troy,
Sorry for the double-email ... I found their pavement design calcs in the folder(just in case I forgot to send them on 5/1)
and attached for reference.
Cordially, Michael
Michael Koslow, PE
County of Albemarle
Community Development Department
401 Mclntire Road
Charlottesville,VA 22902
434-296-5832 ext. 3297
434-972-4126 (fax)
mkoslow@albemarle.org
From: Michael Koslow
Sent: Monday, June 17, 2013 11:04 AM •
To: 'Nathran.Austin @vdot.virginia.gov'
Cc: 'DeNunzio, Joel D., P.E. (VDOT)'
Subject: Old Trail Village Block 14 Road Plan (SUB2013-00025)
Hi Troy,
1
Did you get a chance to review thislkeibmittal road plan? I had originally sent t'S W'i-esubmittal to Joel on 5/1. Joel had
reviewed the first submittal on 3/28 and he had the following comments then:
1. Show projected traffic on each proposed road.
2. Show the proposed pavement structure in accordance with the projected trip generation and assumed CBR and
SSV values for this area.
Please advise!
Thanks, Michael
Michael Koslow, PE
County of Albemarle
Community Development Department
401 McIntire Road
Charlottesville,VA 22902
434-296-5832 ext. 3297
434-972-4126(fax)
mkoslow @albemarle.org
2
Michael Koslow
From: Michael Koslow
Sent: Tuesday, June 18, 2013 5:52 PM
To: 'Tom Riegel'
Cc: 'Nathan Morris'; Glenn Brooks; Ana Kilmer; 'Bill Ledbetter'
Subject: RE: Old Trail Village Block 14 Lickinghole Basin pro-rata fee calculation
Tom,
Please disregard my message from yesterday.
Nathan & Bill,
Please note—per calculations today,the pro-rata share for Lickinghole Basin for Block 14 is$5773.26. Please coordinate
with Ana regarding how this needs to be paid. It is a condition for road plan approval.
Cordially, Michael
Michael Koslow, PE
County of Albemarle
Community Development Department
401 McIntire Road
Charlottesville,VA 22902
434-296-5832 ext. 3297
434-972-4126(fax)
mkoslowPalbemarle.org
From: Michael Koslow
Sent: Monday, June 17, 2013 6:44 PM
To: Tom Riegel'
Cc: Nathan Morris; Glenn Brooks
Subject: Old Trail Village Block 14 Lickinghole Basin pro-rata fee calculation
Hi Tom,
I'm working on preparing the contribution fee amount; however,the fee is based on information specific to Block 14.
Attached is the calculation I used to get Block 11's fee. The fee is based on the increased flow to Lickinghole Basin, and
the amount is literally tied to the Consumer Price Index(i.e.the rate of$447.56/increase in cfs for Block 11 increased to
$456.96/increase in cfs effective 1/16/2013).
However, I'm having a hard time pinpointing the contribution needed for*just* Block 14 (vs.the entire watershed going
to the proposed bio-retention area with WP02013-00021). Could review attached? Long story short, I'm looking for the
following information for just Block 14:
-Total area of Block 14
-pre-construction composite "c"value for Block 14
-pre-construction ToC for Block 14
-post-construction composite "c"value for Block 14
-post-construction ToC for Block 14
Could you provide this information for Block 14? Please advise.
1
Thanks, Michael '' ''-
Michael Koslow, PE
County of Albemarle
Community Development Department
401 McIntire Road
Charlottesville,VA 22902
434-296-5832 ext. 3297
434-972-4126 (fax)
mkoslow @albemarle.org
2
Niro" ,ftwile 6 ft Ni.
c is ECS-linos
Lickingcomp_otv_b14
Lickinghole Contribution computations
Old Trail village Block 1\L
Cpost = 0.7-5-14C table 4-3 on p.4-20 of VSMH vol .2
Cpre = 0.32 uniform for entire watershed, not based on individual site
condition
A = 6--43-acr_as. 7.(g" 4 p-{- (A-2, 1 ,la-ve t y a., A,c
ipre = X3`1 tc o omin. 2 1.)SN\
Ipost = 6.7 tc of min. be-,vv.
Qpre = Cpre*Ipre*A
Qpost = Cpost*Ipost*A b 035 hwsTo G �.C
Qdiff = Qpost-Qpre ZI u^t►n't'(X, 0-,..- W9L MIS—pool I stieetS'
Qdiff = _23.1 [ Qdiff/A = _3.6 , should average around 1.25cfs/acre ]
R = 44- -:56 $/cfs BOS Policy recovery rate (last updated 20 Jan 2012)
R*(Qdiff) = _10316.95 $ '-------A
l
e ,
_ tr), I) t D k) f A c-- 5-f--
ws
( c 5 7 3 3-C4 'J�)
v sz, P o+ - 0. 4-S- P e,- 1-u Lt—3
p 7. 15 ' 7 G
QS;Ci `ILS(, - Ali 46,`) - ( 0- 6 et';-
, .i -, 4 SCo.c( (2r\-D. _ 6 c-r- 4 ci( -I , 1 6
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