Bethel School/Harris-CS 920214~bru~ry 14, 1992
Mr. Nathan D. Maier
Nathan D. Maier Consulting Engineers, Inc.
Three Northpark/8800 N. Central Expressway, Suite 300
Dallas, TX 75231
Re: Bethel School Road and Harris Street
Dear Mr. Maier:
I have received and reviewed the plans for the referenced streets and have
the following comments to offer:
1) A larger radius should be provided on the northeast corner of
Bethel School with its intersection of Harris Street. This
will require additional right-of-way.
2) Additional information should be provided for the intersection
of Bethel School and Harris Street to insure that the crown and
transition to the crown is properly constructed.
3) Sidewalks should be shown. Wheelchair ramps will be required
at all street intersections.
4) The section of the drive approach to the south of the
cul-de-sac and the existin§ drive approach at approximately
Station 7+00 Harris Street will need to be concrete within the
limits of the right-of-way as per the standard driveway details.
5) A traffic control plan should be provided that details how
traffic will be handled durin§ the construction phase of this
project. Access will be required to be provided to all streets
and property owners at all times during construction.
6) The time of concentration should be provided for the drainage
calculations.
7) A junction box should be provided at Station 2+21.12 of the 54"
RC? to allow for a proper connection of the two laterals to the
storm drainage system.
8) Recessed inlets should be provided on both Bethel School Road
and Harris Street. Profiles should be provided for the lateral
lines.
9i There appears to be a discrepancy concerning the location of
the proposed 8" waterline as it crosses Line A-1. Please see
comments on Sheet 4.
Letter to Mr. Nathan D. Maier
February 14, 1992
Page 2
10) Some type of rip-rap erosion control method should be provided
at the outfall of the 54" RCP.
11) Would it be possible to relocate the inlet as shown on Sheet 5
of the plans, to eliminate the 90 de§tee bend in the RCP and to
move it further away from the driveway provided for the
property to the south. Also, some type of erosion control
should be provided at the outfall. You may want to consider
flattenin§ the last twenty or so feet of the RCP to slow down
the velocities.
12) The sewer service at Station 5+04169 of Line A should not be
provided out of the manhole. The service should be provided
out of the proposed 8" sewer line.
13) The total len§th of the sewer, water, storm sewer and paving
should be provided for inventory purposes.
14) All standard details should be provided.
The following comments were provided by the Public Works department:
Landscape plans should be provided.
2) A question concerning draina§e area six was provided. Please
see comments on Sheet 3 of the plans from Public Works.
3) Public Works requested additional information on Line B at the
end of Harris Street.
4) All water services should be 1" in diameter with a 3/4" meter.
5) The proposed sanitary sewer line should be concrete encased at
approximately Station 4+10.
Once these comments have been addressed both the engineering review and
the Public Works review check sets should be resubmitted along with a
corrected set of plans to the City.
If you should have any questions or need any additional information,
please feel free to contact me at your convenience.
Sincerely,
Kenn M. Griffin, P.E.
City Engineer