Denton Creek/Sandy Lake-CS090403
THE.CITY.OF
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April 3, 2009
Robert W, Schneeberg, P,E.
Gonzalez & Schneeberg, Engineers & Surveyors, Inc.
660 North Central Expressway, Suite 250
Piano, TX 75074
RE: Denton Creek @ Sandy Lake Addition
Construction Plan Review Comments
The City of Cappell has reviewed the referenced plans and has the following comments
to offer:
Plat
1. Change the year on the plat and all documentation to 2009.
2. Change the 20 ft. x 12 ft. utility easement to 20 ft. x 20 ft.
3. It appears the base flood elevation is not correct. The elevation should be 447
feet. The City of Coppell, Engineering Department, recently spoke with Michael
Boyd, who performed the flood study. Michael Boyd confirmed that the base
flood elevation is 447 feet. You might consider contacting Michael Boyd for
more information.
Paving Plan
1. Refer to the City of Coppell details for the median nosing.
Drainage Area Map
1. Correct the base flood elevation.
2. Include adjacent affsite drainage area in runoff calculations and overall drainage
area.
3. Show that the downstream system has capacity for increased runoff and future
development.
Erosion Control Plan
I. Protect all inlets that may be affected by onsite movement and within a reasonable
distance to site; including the existing storm inlet adjacent to Sandy Lake, outside
the property line.
255 PARKWAY * P.O.BOX 9478 * COPPELL TX 75019 * TEL 972/462 0022 * FAX 972/304 3673
Grading and Drainage Plan
1. Show profile of valley gutter. Verify that depth of water will not impede
emergency vehicles' accessibility to site.
2. Correct the base flood elevation. The finish floor elevation must be 2 feet higher
than the base flood elevation.
3. It appears that the paved area to the west of the future dumpster site will have
standing water. Correct and/or veri fy the slope of the pavement.
4. The storm drain and inlets appear to be configured differently on the erosion
control plan. Verify that the configuration and elevation of the inlets will be able
to pick up runoff.
Water and Waste Water Plan
1. Install a sanitary sewer cleanout at the property line.
2. The easternmost water stub-out in front of the office building driveway is an 8"
line. Relocating the water services to this stub-out will avoid the need to cut and
dry bore the street.
Miscellaneous
1. The Engineering Department requires as-builts drawings for all projects,
including the Champion School of Real Estate. The as-builts will need to be
submitted along with the Denton Creek @ Sandy Lake 2nd submittal set for
reVIew.
There may be additional comments \vritten on the plans that need to be addressed. Once
the necessary corrections have been made, please return this marked-up set and two
sets of revised plans to the City for review. If you have any questions or need any
additional information, please contact the City of Coppell, Engineering Department, at
your convel1lence.
4;~l M~
DiWanna Baskins
Graduate Engineer
Office Phone: (972) 304-3679
Fax: (972) 304-3570
E-mail: dbaskins@ci.coppell.tx.us