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Woodlands-CS 940929DEVELOPMENT REVIEW COMMI EE ENGINEERING COMMENTS ITEM: Tke Woodgands of Coppell, Preliminary Plat, to allow development of residential ~n, located at the southeast comer of Coppell Road and Thweatt Road, at the request of HAP Engineering & Associates, Ittc. DRC DATE: September 29, 1994 CONTACT: Ken Griffin, P.E., Assistant City Manager/City Engineer (393-1016) COMMENT STATUS: I,~,~.L ,/PRELIMINARY 1. Escrow will be required for Coppell Road. Will the lots on the west side of the property have alley access to the existing alley in Oak Bend? If not, will a screening wall be constructed to prevent alley access. 3. A preliminary copy of the Homeowners Agreement should be provided. 4. All easements should be shown on the face of the plat. The future street connection for the Villages of Cottonwood should be shown. It appears it will not line up with the street that you are proposing. As additional information, if you are attempting at some point to get a median opening for your street, it will need to be aligned with Winding Hollow. The location of your street as currently shown will not allow a median opening in the future when Coppell Road is constructed as a four lane divided boulevard. Provide a preliminary horizontal layout of Coppell Road and dedicate the appropriate right- of-way at the northwest comer of this subdivision. The floodway and floodplain should be more clearly shown and tied down on the construction plans. Also, if the slope is greater than a four to one then it should be dedicated as a common area to the Homeowners Association and maintained by the Homeowners Association. If it is common area, then access should be provided from the street to the common area. If you choose to align your street with Winding Hollow to take advantage of the future median opening, then you may wish to have that street run, adjacent and parallel to the floodway area. All drainage areas should be properly delineated. Also, off-site drainage areas should be shown. '9. 10. 'l'he proposed 8" water line in your western cul-de-sac should be tied to the existing 8" water line in Coppell Road to provide a looped system for the subdivision If possible, you should connect your sanitary sewer to the existing 15" sanitary sewer in Cottonwood Creek. 11. No fences are allowed in the floodplain. This includes the fence parallel to Coppell Road. 12. The correct visibility triangles should be shown. The current ones are incorrect. 13. Minimum finish floors will be required for all lots adjacent to the floodplain. DEVELOPMENT REVIEW COMMI EE DRC DATE: CONTACT: ENGINEERING COMMENTS The Woodlangs of ~lt, Preliminary Prat, to aUow doelopment of a residential ~n, located at the southeast comer of Coppell Road and Thweatt Road, at the request of HAP Engineering & Associates, Ittc. September 29, 1994 Ken Griffin, P.E., Assistant City Manager/City Engineer ($93-1016) Escrow will be required for Coppell Road. The future street connection for the Villages of Cottonwood should be shown. It appears it will not line up with the street that you are proposing. As additional information, if you are attempting at some point to get a median opening for your street, it will need to be aligned with Winding Hollow. The location of your street as currently shown will not allow a median opening in the future when Coppell Road is constructed as a four lane divided boulevard. Provide a preliminary horizontal layout of Coppell Road and dedicate the appropriate right- of-way at the northwest corner of this subdivision. The floodway and floodplain should be more clearly shown and tied down on the construction plans. Also, if the slope is greater than a four to one then it should be dedicated as a common area to the Homeowners Association and maintained by the Homeowners Association. If it is common area, then access should be provided from the street to the common area. If you choose to align your street with Winding Hollow to take advantage of the future median opening, then you may wish to have that street run, adjacent and parallel to the floodway area. All drainage areas should be properly delineated. Also, off-site drainage areas should be shown. The proposed 8" water line in your western cul-de-sac should be tied to the existing 8" water line in Coppell Road to provide a looped system for the subdivision If possible, you should connect your sanitary sewer to the existing 15" sanitary sewer in Cottonwood Creek. Page 2 Woodlands of Coppell DRC 9/29/94 8. No fences are allowed in the floodplain. This includes the fence parallel to Coppell Road. 9. The correct visibility triangles should be shown. The current ones are incorrect. 10. Minimum finish floors will be required for all lots adjacent to the floodplain.