Cambridge Phase 1-CS 940505~/~) The City With A Beautiful Future ~-~ .,~,.. ,~..~j:)~p~_ell_Texas 75019
May 5, 1994
Mr. Bill Anderson
Dowdey, Anderson, & Asssociates, Inc.
16250 Dallas Parkway
Dallas, Texas 75248
RE: First Construction Review Comments for the Cambridge Manor Estates
Dear Mr. Anderson:
The City of Coppell has received the referenced plans and has the following comments
to offer:
1. Provide a signed plat in the next set of review plans.
2. There are parking circulation concerns at the cul-de-sac locations shown on the
paving plans.
3. Provide a minimum 20' easement at the locations shown on the drainage area
map.
4. The minimum radius at intersections of local streets is 25' as per the new
Subdivision Ordinance.
5. Show the size of the sanitary sewer lines at the locations shown on the water
and sewer plans.
6. Show the drainage easements on the final plat.
7. Is Prince Edward Lane dedicated west of the property line ?
8. Relocate the parking medians back further so that the crosswalks are not
blocked.
9. Show the elevation flow arrows for Cambridge Manor Lane from Deforest Road
to Kings Canyon Court.
10. Show the detail pavement cross section from median to face of curb on both
sides of the street for Cambridge Manor Lane.
On the typical pavement section notes on sheet 1 of the paving plans, add to
silicone seal all joints.
]2. On the typical pavement section notes on sheet 1, the pavement thickness and
strength is 6"-3,000 p.s.i compressive or 6"-3,600 p.s.i, compressive for
alternative pavement as per City of Coppell Subdivision Ordinance.
]3. Show the compacted fill areas on the paving plans as hatched at the locations
shown on the construction plans.
14. Grade to drain at the end of Castle Creek Drive and Prince Edward Lane. Guard
rail and street header are per Coppell Standards.
15. On sheet 3 of the paving plans, show the elevation flow arrows for Prince
Edward Lane and the north arrow.
On the paving profile for Prince Edward Lane, the proposed grade is shown
incorrectly.
]?. Provide positive overflow at the drainage easements. Show the drainage
easements on the drainage area map.
18. On sheet 2 of the storm sewer plans, show the street names, the storm sewer
profile for Line "C", and the drainage easements.
]9. On line "A" of the storm sewer plans, provide rip-rap and erosion control for the
headwall. Also, show the normal water elevation of the creek on the storm
sewer profile.
20. Show the sizes of the R.C.P.'s. at the locations shown on sheet 3 of the storm
sewer plans. Also show the drainage easements for lines "D", "E", and "F".
2]. All lot numbers must be the same as what is shown on the final plat.
22. Property owners need to be contacted prior to sewer installation.
23. A safety fence shall be constructed prior to the construction of the 10" sanitary
sewer.
24. Bore the 10" sanitary sewer under the existing paving and drives. Show the
existing fences and trees. Replace existing landscaping.
25. Provide blow off valves at the end of the water line on Castle Creek Drive and
also at Prince Edward Lane. Show blow off valve detail, as per City of Coppell
Standard Construction Details, on the water and sewer plans.
26. Curves 3 and 4 for the sanitary sewer lines "C" and "1" respectively are less than
850'.
2?. Concrete encase the drop manholes at the locations shown on the sanitary sewer
profiles.
28. Provide a 20' easement for the "Y" inlet shown on the grading plans. Grade to
drain and provide erosion control for the "Y" inlet.
29. Show lot numbers for the lots on the grading plans.
30. Provide erosion control for installation of sanitary sewer line "A".
31. Show the storm sewer locations on the water and sewer plan.
32. Show the public utility crossings on the sanitary sewer profiles. Concrete encase
were there is less than 24" between public utilities.
33. Upgrade the existing sanitary sewer services to the new 10" main at a minimum
distance from the R.O.W. line to the proposed sanitary sewer main location.
34. Place the storm sewers behind the curb at the locations were the normal pool
elevation is inside the pipe. Also, provide a tight seal between joints at these
locations.
There are various other minor comments throughout these plans. Once these
comments have been addressed, the revised set of plans should be resubmitted to the
City for review. If you should have any questions concerning these comments, please
feel free to contact me at 393-1016.
Sincerely,
Atul Patel, E.'T.T
Graduate Engineer