Forest Cove 1-CS 971008 P.O. Box 478
Coppell, Texas 75019
The City With A Beautiful Future 214-462-0022
October 8, 1997
Terry Mitchell P.E.
Carter Burgess Engineering
7950 Elmbrook Drive Suite 250
Dallas, TX 75247-4951
RE: First Construction Review Comments for
Forest Cove Phase 1
Dear Mr. Mitchell:
The City of Coppell has received and reviewed the referenced plans and has the following comments
to offer:
1. On the final plat, show the sight visibility triangle easements at ingress/egress as per
Subdivision Ordinance. Sight visibility triangles must be based on the location of the future
back of curb on Sandy Lake Road.
2. Show visibility easements for alleys (15'x15' comer clips).
3. Provide access to school south of properly. Need access easements.
4. On the grading plan, show proposed top of curb elevations and for the existing alley south of
lots 1-15, Block C.
5. Provide pedestrian and bicycle access to the south to Wilson Elementary School along Coppell
Road. This will require reworking the ditch along Coppell Road.
6. Show inlet locations and flow arrows on the grading plan.
7. State which lot grading type each lot is.
8. On sheet 4 of 14 profile, clarify what the profile is (centerline, left, right sides, top of curb,
gutter shot?).
9. On the cul-de-sac detail, show the inlet location. How will water flow to the proposed inlet
if the low point is on the other side of the alley.
10. Show all barrier free ramps and sidewalk locations on paving plans.
11. On sheet 5 of 14, show inlets on the paving plans. Provide 100' min vertical curves as per
Subdivision Ordinance. Show K values also.
12. On the cul-de-sac detail, a 1/4": 1' minimum cross slope is required for sidewalks.
13. On sheet 6 of 14, how are you proposing to handle the drainage on Sandy Lake Road? How
far back are you filling the ditch on Sandy Lake Road?
14. Provide 1 joint of paving back from the proposed curb elevation of Sandy Lake Road. Install
an RCP under the ingress/egress of Forest Bend Drive.
15. Install an 8' brick paver band on Forest Bend Drive one foot from the property line.
16. On sheet 8 of 14, compact f'fll to 95 % density, provide 100' rain vertical curves and show the
inside radius for alley D-1.
17. On the water and sewer plan, core drill and adjust existing manhole to grade as per Coppell
Standard Details.
18. Show all drainage and utility easements on water and sewer plan.
19. Connect the water line on Forest Ridge Drive to Coppell Road. Tapping sleeve and valve to
existing water main and dry bore under Coppell Road.
20. Bolt down lid on manhole at Station 1+00.39 line B is required.
21. Fire hydrant locations must be approved by the fire marshall.
22. Show the size of the water line on Sandy Lake Road by Bore pavement and wet tap water line
on Sandy Lake.
23. On the water and sewer plan, provide a note with Lone Star Gas' representative and phone
number prior to digging.
24. The 8" water line on Forest Ridge Drive will require 20' of pipe extended past valve at end
of line.
25. On profile for Line A, show where the proposed water line crosses the 8" sewer. Field verify
the existing flow line.
26. On the drainage area map, the existing 42" CMP shown on Coppell Road may not be able to
handle runoff from Forest Cove Estates and Devonshire south of this property. Provide data
showing it can.
27. Provide information showing the capacity of the existing ditch on Coppell Road. Also,
provide drainage area and runoff information for the area shown on the drainage area map.
Also, use a minimum time of concentration of 10 minutes. Also, use an intensity value of
11.8 in/hr. How are you going to handle runoff temporarily for drainage area for alley A-l?
28. On sheet 12, install rip-rap at the headwall for 27" RCP. Show 100 year HGL and Qcap for
line A, B. Also, show where the water line crosses the 24" RCP. Label the easement.
29. On sheet 13, show the profile for lateral.
30. On the erosion control plan, show the stabilized construction entrance.
There are various other minor comments throughout the plans. Once these comments have been
addressed, the marked up plans along with two revised sets of plans should be resubmitted to the
City for review. If you should have any questions concerning these comments, please contact me
at 304-3682.
Graduate Engineer