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E INEERING COMMENTS NO. 2
(Repeat) Please submit NOI.
(Repeat) FYI...Additional Development Permit Fee in the amount of 3 /4% of the total public
infrastructure cost will be required.
(Repeat) C5.1 -5.4 — Show and label all PUEs. There are several PUEs labeled as existing,
but we have no record of them being dedicated. Please submit easement dedication
for all easements that should have previously been dedicated.
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(Repeat) C5.1 -5.4 — Please verify that all utility lines are at least 5.5 -ft from the edge of fhe � +'
P�Y1E. Ideally we would like utilities to be centered in easements, but we will permit them to
as close as 5.5 -ft from the edge of a PUE. A few of the utilities still need to be adjusted.
response to previous comment #10, it was stated that there are 15 -ft PUEs on either side
of all pipes. If this is the intent, please show all these proposed easements on the plans.
looks like some of the 6 -inch sanitary sewer lines are exceeding the maximum slope of
.8 %. Please revise.
peat) C5.3 -5.4 — Please show and label the other proposed utilities. It is difficult to tell if
ere will be utility conflicts based on these plans.
1 -5.2 — Please label flowlines at 100 -ft stations.
5.1 — Existing PUEs need to be labeled with volume & page number.
C5.2 — Sanitary sewer stubouts should be at least one full joint in length.
' 5.2 — Sta. 25 +58.66 — Should there be a proposed 6 "x10" tee? 06 4,6 �� 00
3 — Sta. 0 +00 — We only require 2 gate valves at the 12 "x12" fee, unless there are
ial circumstances.
.3 — TCEQ Horizontal separation distance is not being met at Sta. 0 +69.34.
5.3 — Since Private Drive A is not able to be used as a fire lane, then fire hydrants will
need to be installed on the west side of the drive with future development. To support
future development, larger mains than the proposed 6" waterlines should probably be
st ed.
.3 — Private Drive C has an existing 10 -ft PUE and an existing Slope Easement along the
heast side rather than the labeled Sanitary Sewer Easement.
PUEs will be required for proposed utilities rather than Sanitary Sewer Easements.
-5.4 — Please verify that all waterlines are at least 4 -ft from proposed transformers or
ctrical lines.
anitary Sewer Report — It looks like Exhibit 3, "MH D -MH C" does not show the cumulative
capacity within the system. Please verify that capacity data downstream is still accurate.
Reviewed by: Erika Bridges Date: 10/4/10
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G INEERING COMMENTS NO. 1
P lease submit PUE or Blanket PIE dedication
lease submit an Engineer's 4St Estimate a
- RM.& L Ms 9
YI...Additional Development Permit Fee
i the ount of %% of the total public
y/frastructure cost will be required.
.0 - General Construction Note #18 contradicts Grading Note #1, and suggests that the
imum grade may surpass 3:1. Please revise.
.0 - Sanitary Sewer Note #11 should probably just reference Water Note #11 for specific
uirements at water /sanitary crossings.
.0 - Water Note #12 should not say "vertically." We interpret the longitudinal separation
o mean the horizontal rather than vertical component.
C3.1/3.2 - It seems like the purpose of these sheets is to affirm that these plans are in
compliance with the approved preliminary plat, but the water and sanitary sewer
infrastructure isn't visible.
C5.1 -5.4 - Show and label all PUEs.
C5.1 -5.4 - Please verify that all utility lines are at least 5.5 -ft from the edge of the PUE.
5.1 -5.2 - There are areas where the sanitary sewer needs to be in a 20- or 30 -ft PUE
d on depth. Omit- <X'8 Wve I t-re V -f1' f O0 ei l , r?,f gid+2 of "
1 - Please match soffits at exi mg Sanitary #4.
1 -5.2 - The sanitary sewer is required to be SDR26 -ASTM D3034. Please revise. '
1- 2 - The 6 -inch collection lines to future Tots need to have clean -outs and a plugged
ut of one full joint of pipe.
.2 - Please label the flowlines of the plugged stub -outs. Mil 5t co v t5lichb. -)a'
-5.2 - Please label the service tie -ins on the profile drawing with flowlines.
-5.2 - Is a 24 -inch encasement pipe necessary for a 6 -inch pipe crossing? Per our Pipe
ing Spec 31 78 00, a 14 -inch casing pipe is required for a 6 -inch carrier pipe.
5.1 -5.2 - Please show the proposed encasement at approximate station 21 +00 on the
`le drawing. Per the Pipe Boring Spec 31 78 00, a 18 -inch casing pipe is required for a
-inch carrier pipe.
C5.1 -5.2 - Please specify the exact encasement material being proposed.
. C5.3 - Where the water line is crossing over the storm and sanitary sewer pipes between
ita +00 and Sta. 1 +00, please revise the design to provide the 4 -ft minimum required
.
over over the waterline.
5.3 -5.4 - A 12x12 tee is required instead of the specified TS &Vs.
.3 -5.4 - Please show and label the otherproposgd utilities. It is difficult to tell if there will
utility conflicts based on these plans. 10T) -1100)106v It Cktrf I1e (ifi> 3 .11)0
-5.4 - - Please label the tee and cross connections in profile view.
-5.4 - Please provide 2 valves at each tee and 3 valves at each cross connection.
.3 - Profile should have another 6 -inch connection near Sta.10 +00.
.3 -5.4 - Please provide profile drawings for the encased pipes crossing the drives.
3 -5.4 - The encasement pipes need to be sized in accordance with our Pipe Boring
ec 31 78 00.
5.3 -5.4 - There is required to be a minimum 4 -ft and maximum 5 -ft cover over the
~ jl�iaterline. Please adjust.
. 5.3-5.4 - Air relief valves are required at every peak on 12 -inch waterlines and larger.
5.3 -5.4 - For all 12 -inch waterline deflections, the maximum radius of curvature is 600 -ft.
This should be labeled similar to a street vertical curve section, where the beginning and
e ding stations and flowlines should be labeled. The radius and flowline every 10 -ft also
eed to be labeled.
. C5.3 -5.4 - Please specify the exact encasement material being proposed.
31. Water Report — Please provide a model of the system under normal conditions as well.
32. hitary Sewer Report — Please provide the velocity and capacity calculations.
6.2 - Please provide City Std. Details S3 -01, S3 -03, W2 -03, W3 -02, and W4 -00.
Reviewed by: Erika Bridges
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Date: 7/22/10