Gateway BP(1.1)-CS 900507 REVIEW HE .......
Date: May 7, 1990
To: City of Coppell Public Department
From: John C. Karlsruher, P.E.
Re: Review Cobb_to for the ~'ina£ ~.l~L~.~Engineering
Plans~teway Business Park Additio~
FINAL PLAT:
No comments
PAVING PLANS:
1. Specify concrete pavement thickness and strength to avoid
confusion due to the design of non-standard streets.
WATER AND SEWER PLANS:
1. Show pipe sizes adjacent to water lines and sewer lines.
2. A 16" water line must be installed in Gateway Blvd.
3. Maximum manhole spacing on sanitary sewer lines is 500 feet.
Revise plans accordingly.
4. Eliminate drop in manhole at Station 20+80.79, Line "A".
5. Use D.I. pipe encased in concrete at Station 0+47 Sanitary
Sewer Line "A-i"; Station 0+47 Sanitary Sewer Line "A-2";
and Station 0+25 Sanitary Sewer Line "B-i".
6 Sh~ ~tails -- I~" '
· . · -.o u~ water llne at Station 31+25 in Gateway
Blvd. (ie. restraining glands, thrust blocking, etc.).
7. Increase vertical clearance between Sanitary Sewer Line "B"
and double 60" R.C.P. at Station 4+60 (Line B).
DRAINAGE PLANS"
1. Open channels must be maintained by property owner.
2. Show proposed storm sewer layout on drainage area map.
3. Show HGL on storm sewer profiles.
cc: Gary Sieb
Taryon Bowman
Pat Acker, Albert H. Halff & Assoc., Inc.
17103 Preston Road · Suite 100 · LB 118 · Dallas, Texas 75248 · Phone 214/248-4900