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Gatew-1.4/FP-CS 900614 GINN, INC. CONS1TI TING Date: June 14, 1990 To: Steven G. Goram, Director X.....~."... City of Coppell Public Works Department From: John C. Karlsruher, P.E. Re: Review Comments for the Final Plat and Engineering Plans - Gateway Business Park Addition - 3rd Review FINAL PLAT: 1. Revise the Final Plat as approved by the City Council on 6/12/90. i.e. sidewalks to be constructed when directed by the Director of Public Works. 2. Final Plat lacks signatures, notarization, and Surveyor's Seal. PAVING PLANS: 1. Sheet P-3 - a warning barrier indicating that Gateway Blvd. does not continue to the east is required on the east side of Freeport Pkwy. across from Gateway Blvd. proposed for this project. 2. Sheet P-5 - proposed traffic controls (buttons, stripes, lines and signage) must be shown. This shall apply to all paving sheets. 4. Sheet P-7 - left turn detail must be revised to indicate subgrade treatment to be used. 5. Sheet SD-2 of the Standard Construction Details - correct the Collector Street cross-section as indicated. DRAINAGE PLANS: 1. Sheet SS-3 - The storm sewer pipe size and material need to be shown. - Concrete encasement will be required on the 16" water line where it crosses line ~A'. 2. Sheet SS-4 - The storm sewer profile should be revised to indicate the location of the natural ground line and the proposed paving grade. For example: "existing ground at centerline of pipe"; or "proposed top of pavement at centerline of pipe". 17103 Preston Road · Suite 100 · I_B 118 · Dall~,s, Texas 75248 · Phone 214/248-4901) 3. Sheet SS-4 - Concrete Encasement required on all sanitary sewer crossings of line ~A'. 4. Sheet SS-5 - The storm sewer profile should be revised to indicate the location of the natural ground line and the proposed paving grade. For example: "existing ground at centerline of pipe"; or "proposed top of pavement at centerline of pipe" -Concrete encasement the 12" water line at its crossing with line~A~ 5. Label the Rock Rip Rap on Sheet DD-1 and indicate the locations of it's use on the plans. 6. What provisions will be made for erosion control in the ditches and the bank of Grapevine Creek at the ditch outfall? WATER AND SEWER PLANS: 1. Sheet WS-1 - Add a 6" blowoff at the west end of the 16" water line, replace the standard cross with a flat flanged cross at Sta. 9+60, and install a valve on a flat flange at the east end of the water line. 2. Sheet WS-2 - Extend the concrete encasement on line 'A-l' as shown. 3. Sheet WS-3 - Concrete encasement is required on the 8" sanitary sewer line crossing beneath line "B" at Station 6+80 and the 12" sanitary sewer crossing at Sta. 0+54 +/-. Extend the concrete encasement on line ~B-i', line ~A-5' and install a concrete saddle for line 'B' over the two 60" RCP's. Add valves as shown at the cross at Sta. 22+83, laterals at Sta. 9+60 and 0+90 on the 16" water line. 4. Sheet WS-4 - Concrete encasement is required on the 8" sanitary line crossing beneath the 16" Water Line at Station 10+25.64. -A 6" blowoff assembly must be added to the 16" water line as marked. 3. Referring to Standard Construction Details Sheet SD-15, the horizontal valve installation is not allowed. This sheet should be marked accordingly. LANDSCAPE PLANS: 1. No revised plans received for review at this time. The Engineer, by copy of this memorandum is directed to comply with the review comments and resubmit his corrected plans with the marked up plans representing the review comments contained herein. FEES DUE: A. Water and Sewer Availability Fee @ $60/SF of Building Area 1/2 due prior to city Council consideration of each parcel. $-0- due now. B. Water Tap Fee @ $100/meter Due prior to issuance of building permits $-0- due now. C. Sewer Connection Fee @ $100/sewer connection 100% due prior to issuance of building permits $-0- due now. D. Construction Permit Fee First deposit @ $100 + $35/acre = $100 + $35 x 103.823 acres = $3,733.80 due now. Second deposit in an amount equal to 1.5% of the estimated construction cost of the items proposed to be dedicated to the City. This is due prior to issuance of a construction permit. E. Street Light Fee @ $292.60 per light for every 200 feet of roadway. This fee is due prior to final acceptance of the subdivision. Review with Coppell Public Works Street Department. F. Street Sign Fee as required by the Street Department. Due prior to building permits being issued. Review with Coppell Public Works Street Department. TOTAL OF FEES DUE AT THIS TIME = $3,733.80. For questions regarding comments made by Public Works or Engineering Department staff contact the following: 1. Water and Sewer - Water Superintendent, Mr. Howard Pafford, at 214-462-8495. 2. Streets - Streets Superintendent, Mr. Per Birdsall, at 214- 462-8495. 3. Parks - Parks Superintendent at 214-462-8495. 4. Engineering - John C. Karlsruher, P.E., Ginn, Inc. Consulting Engineers at 214-248-4900. Should there be further questions on policy or disputes which may need to be resolved, please contact Mr. Steve Goram, Director of Public Works, at 214-462-8495. cc: Gary Sieb Pat Acker, Albert H. Halff & Assoc., Inc., w/marked plans