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Park Meadow P2/FP-CS 850410 (2)GINN, INC. April 10, 1985 CONSULTING ENGINEERS Mr. Dan Dowdey 16250 Dallas Parkway Dallas, Texas 75248 Re: Final Plat and Construction Plans Park Meadow Addition, SecUiOn Two Coppell, Texas Dear Mr. Dowdey: This office has reviewed the above drawings for compliance with applicable City of Coppell ordinances. Before we can recommend the above plat be placed on the Planning and Zoning Commission agenda, the following points need to be addressed: 1. Meadowood has already been used in Coppell for a street name. 2. The construction of a half-width street (Moore Road) is generally prohibited by the ordinance. Please show sufficient cause why the entire street cannot be built at this time, in order to justify the half-width. 3. It appears that you are proposing filling in a flood plain at the north end of the property. Please show the extent of the fill and the amount of affected flood plain. 4. Valley gutters across through streets are generally not permitted. 5. Minimum required street grades are 0.5%. Please address. 6. At street intersections other than 90 degrees, show stations of curb radii P.C.'s and P.T.'s. 7. An overall grading plan showing surface drainage and intersection with existing contours would be helpful. 8. In the event Moore Road is constructed by half-width methods, please provide easement for slope on adjoiner's property. In said event, provide 20:1 taper on temporary asphalt transition at Parkway Boulevard. 9. All fill placed at street sections should have lime stabilization and compaction similar to subgrade. Please show that topsoil will be stripped prior to fill at street sections. 16135 Pre,ton Road · Suite I06 * Da!!a,.Texa, 75248. Phone 214 386-6611 10. The concentration time for all drainage areas does not exceed 10 minutes. Please review the drainage design with a more appropriate time of concentration. 11. Drainage area map should show off-site drainage contribu- tions. Map should show where all of subdivided area is draining. 12. Storm sewer profiles should show crossing utilities that could possibly conflict. Please show minimum 1.5' clearance between sewer and water mains. 13. Please show outlet conditions of storm sewers and extent of grading required. 14. Show storm sewer laterals. 15. Horizontal curves in sanitary sewers are not allowed. 16. Maximum distance between sanitary sewer manhole and clean-out at end of line is 200'. 17. Sanitary sewer mains should intersect at grade or a drop manhole should be used. Please provide detail of drop manhole, 18. New City of Coppell standard details are available for your use. They are recommended for this project. The content of the details furnished with this set have not been reviewed at this time. Please feel free to contact me concerning the above. A separate review of the landscape details submitted for this project is in progress. ~incerely, /st cc: Ron Ragland