FW Old Town Coppell Grading questionsKeith,
Please see the email below and attachment for my response to Kirk’s
questions.
Thanks
Dan Prendergast E.I.T.
URBAN PLANNING + DESIGN GROUP
Freese and Nichols, Inc.
1701 N. Market St., Suite 500
Dallas, Texas 75202
214-217-2216
www.freese.com <http://www.freese.com/>
From: Dan Prendergast
Sent: Thursday, February 09, 2012 3:50 PM
To: 'Kirk'
Cc: 'Tad Larson'; 'Tery Chapman'; 'Marty Murphy'; 'JR Marriott'
Subject: RE: Old Town Coppell Grading questions
Kirk,
Please see the attached exhibit with elevation call outs for the
intersection of Houston St and Coppell Rd.
On the PI points, there are 2 PI points in the alignment and those
points are correct. I highlighted the leaders in red so you could
better see what they are pointing to.
As for 6+50 on Houston: The points called out in the cross section are
the top of curb behind the ADA ramp landing. Points 34 and 35 show the
left EP elevations around the ramp and points 41 and 40 show the right
EP elevations around the ramp. Your assumptions are correct for EP
elevations at the north side of the ramp landing.
Let me know if you need anything else
Thanks
Dan Prendergast E.I.T.
URBAN PLANNING + DESIGN GROUP
Freese and Nichols, Inc.
1701 N. Market St., Suite 500
Dallas, Texas 75202
214-217-2216
www.freese.com <http://www.freese.com/>
From: Kirk [mailto:kirk@kazsurveying.com]
<mailto:[mailto:kirk@kazsurveying.com]>
Sent: Thursday, February 09, 2012 1:34 PM
To: Dan Prendergast
Cc: 'Tad Larson'; 'Tery Chapman'; 'Marty Murphy'; 'JR Marriott'
Subject: Old Town Coppell Grading questions
Dan:
I have been tasked with staking the curb on Houston Street from the
intersection of Main, East to the intersection at South Coppell. I have
questions regarding the following data.
1. At the intersection of S. Coppell & Houston, (sheet PV-7)
there is a PI called at Station 9+67.29, with coordinates given. The
coordinates appear to be more correct. It appears to be at Station
9+96.79 -42.47’-RT.
2. At the same intersection. On sheet PV-7, I’m having trouble
with the following: the PVI data from the profile VS. the Point table
calls, and digital station data:
PVI Station 9+97.29; when projected to the proposed Left and Right Curb
lines, follows and intersects the gutter line, but is delineated as a
top of curb in the profile view.
PVI Station 9+91.85; - when projected to the proposed Left and Right
Curb lines, follows and intersects the gutter line, but is delineated as
a top of curb in the profile view.
PVI Station 9+86.79; - when projected to the proposed Left and Right
Curb lines, follows and intersects the gutter line, but is delineated as
a top of curb in the profile view.
The Left Curb slope, when calculated between PVI station 9+68.08 to PVI
Sta 9+86.79 results in a slope of 4.9% , The Right Slope at 2.9% The
Profile calls 4.4% & 2.6% respectively.
3. The section for Station 6+50 Gives data for LT. TBOC-516.71,
RT-TBOC-516.61. that section appears to be within an ADA ramp. Am I to
assume that data should be LT- EP=516.21 & RT=-516.11
As far as the Houston/ South Coppell Intersection, could I get an
exhibit with top-back of curb-elevation clarified on the above stations
if correct, or updated data if not, as well as Top-of Curb- elevation
and station data for all points of curvature and tangency from station
9+68 to the end?
Regards,
Kirk Ross, EIT
KAZ SURVEYING
1720 Westminster Street
Denton, TX 76210
Office: 940-382-3446
Fax: 940-382-3447
Email: kirk@kazsurveying.com <mailto:aaron@kazsurveying.com>
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㜱١最�\潸ᐄ砀ᐕreferences a maximum grade in a
subdivision to be 10% but was not clear if that included the driveways.
We were planning on limiting our maximum grades to 14%. The driveways
are only 6 feet long.
Thanks.
Mike Glenn, P.E.
Glenn Engineering Corp.
TBPE Firm F-303
HUB #1752575193300/469711
105 Decker Court, Suite 910
Irving, Texas 75062
972-717-5151(o)
972-672-2450(m)