HomeMy WebLinkAboutSDP200900076 Review Comments Preliminary Site Plan 2010-05-13Amy Pflaum
From: Amy Pflaum
Sent: Thursday, May 13, 2010 10:57 AM
To: 'Kirsten Munz'; 'Scott Collins'
Cc: Megan Yaniglos;'DeNunzio, Joel D., P.E.'
Subject: FW: SDP200900076 Old Trail Phase 9, Blocks 4, 11, 13, & 14
Kirsten,
All Engineering comments have been addressed on this Preliminary Site Plan except # 31:
31. These plans continue to label all "accessways" as Private Roads. If these are to be Private Roads,
they must meet the appropriate standard as defined in the AC Design Manual. If they are to be
alleys, they must meet the alley standard defined in the Old Trail Code of Development, upgrades
may be required in areas where the alleys provide the only emergency access to lots. If they are to
be travelways, they must meet the requirements of the zoning ordinance with an easement width
that is at least one foot behind the back of curb. The designation of these accessways will then
determine the design of their entrances onto the designated public roads. These entrances will
need to meet the standards in VDOT's Appendices B(1) and F accordingly.
It does not appear that the entrances onto public streets are meeting VDOT standards for commercial entrances. Please
see the emails from VDOT below. If you would like to continue with the current proposal, please submit the Autoturn
diagrams for review.
-Amy
From: DeNunzio, Joel D., P.E. [ mailto:J oel.DeNunzio @VDOT.virginia.gov]
Sent: Thursday, May 13, 2010 10:21 AM
To: Amy Pflaum
Subject: RE: SDP200900076 Old Trail Phase 9, Blocks 4, 11, 13, & 14
Amy,
A private entrance serves no more than two single family dwellings. Everything else is considered a commercial
entrance. All of these entrances should meet the commercial entrance standard. If they are proposing less than the
standard, they should demonstrate that the design is adequate based on some Autoturn diagrams for the design vehicle.
The design vehicle should be selected based on the type of vehicle that will use the entrance on a regular basis.
Thanks,
Joel
Joel DeNunzio, P.E.
Staff Engineer
434 - 293 -0011 Ext. 120
Joel. den unzioCTvdot.virainia.gov
From: DeNunzio, Joel D., P.E. [mailto:Joel .DeNunzio @VDOT.virginia.gov]
Sent: Thursday, May 13, 2010 9:12 AM
To: Amy Pflaum
Subject: RE: SDP200900076 Old Trail Phase 9, Blocks 4, 11, 13, & 14
Amy,
The minimum width for a commercial entrance on a local road is 24 feet and the minimum radius is 25 feet. The minimum
radius should be calculated as the effective radius which means if there is a parking lane on the street, you add that width
to the actual radius to get the effective radius. So is they are showing a 20 foot radius and a 7 foot parking lane, the
effective radius is 27 feet and that can be adequate for the design vehicle. VDOT now has a minimum recommended
radius in the Access Management Standards for all design vehicles. Most likely, the residential commercial entrances
need to accommodate a passenger car or in some cases a single unit truck.
Please let me know if you have any additional questions.
Thanks
Joel
Joel DeNunzio, P.E.
Staff Engineer
434 - 293 -0011 Ext. 120
Joel. den unzioCcbvdot.virainia.gov
From: Amy Pflaum [mailto:apflaum @albemarle.org]
Sent: Wednesday, May 12, 2010 1:49 PM
To: DeNunzio, Joel D., P.E.
Subject: SDP200900076 Old Trail Phase 9, Blocks 4, 11, 13, & 14
Joel,
Are the proposed curb return radii of 15' and 20' width for all the entrances off of the public streets okay? I thought
VDOT's minimum commercial entrance standard would use 25' radii and a 24' width. Would these entrances to
residential developments (single & multi - family w/ office & retail) need to meet commercial standards?
Thanks, Amy
Amy D. Pflaum. P. E.
Senior Civil Engineer
Albemarle County Department of Community Development
(434) 296 -5832 x3069
a �flaum0albemarle. orp