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10/14/2004-PZ-Agenda Packet-RegularAGENDA PLANNING AND ZONING COMMISSION THURSDAY, OCTOBER 14, 2004 201 BOLIVAR 7: 00 P.M. 1. Call Meeting to Order. 2. Consider and Possible Action on a Preliminary Plat for Brooke Hill Village, being 14.7 acres in the Henry Tierwester Survey. Property is located South of Holt Road between Keaton Road and the Service Road. 3. Consider and Possible Action on Preliminary Plat for Copperfield Estates, Being 44.156 acres in the J.P.B. Ja,&9#Ny,&Fvey, Abstract #658. Property is Located off of F.M. 455. � Sq�w 4. Adjourn. pF O`,��•.....,,.. • fa' rEXAs lie Chavez, City Se -II-0 U —W-1 Date and Time Posted This facility is wheelchair accessible and accessible parking spaces are available. Requests for accommodations or interpretive services must be made 48 hours prior to this meeting. Please contact the Ci Secrete 's office at 940 458-7930 for further information. BOARD MEMBERS: IF YOU ARE UNABLE TO ATTEND, PLEASE CALL OPAL OR ROSE AT 458-7930! ! MEMO October 11, 2004 To: Planning & Zoning Fr: Rose Chavez, City Secretary/Assistant City Manager Re: Item 1 - Brooke Hill Village Attached is the information regarding this request. The Engineer has recommended approval. I FROM : THE A-LISON FAMILY PHONE NO. : 817 380 9431 Oct. 01 2004 07:56PM P2 .Alison Engineering 611 Pecan Creek Road, Denton, Texas 76207 (940) 380-9453 Off/Home (940) 380-9421 Fax Oictober 1, 2004 w. . Jack Smith �ity Manager ,ity of Sanger : ).0. Box 1729 Sanger, Texas 76266 Re:. Brooke Hill Village Preliminary Plat - 2'� Reviews o" ., r . - Dear Mr. Smith: - - . •?�=,; � - E►llison Engineering iecominene s.approi�al of the preliminary plat. All of the comments f : om the original review appear to `haver been addressed satasfactoh ly. 1lison Engineering's review of submittals for land development projects is only vctended to establish a reasonable level of confidence that the developer is complying v zth applicable rules and regulations. Our review is not intended to provide quality control nor assure anyone that the development is fully compliant The responsibility for o)mpliance remains solely with the developer throughout the process; from zoning and p atting through construction and the warranty period. The developer is responsible for a )rrecting all deficiencies, regardless of the time they are discovered We appreciate the opportunity to continue providing professional services for the City of Sanger. Please call if you have any questions or need any additional information or clarification. R, spectfuffy Submitted, A'lbvn EigineerbW - Lee L Allison, P.E., NSPE Xc : Rose Chavez Eddie Branham John Henderson Mike Prater Allen Busseli Greg Edwards Page I of] wau mwnoa a AMMOAMOM . AU VAAW S dart .INOW..UM& GREG EDWARDS ENGINEERING SERVICES, INC. 1621 AMANDA COURT PONDER, TX 76259 (940) 482-2907 PH (940) 482-8128 FX www.GEES.us Tuesday, September 21, 2004 Lee Allison City of Sanger P.O. Box 1729 Sanger, TX 76266 .:..: RE: Brooke Bill Viljage -' Preliminary Plat Dear Lee: ¢ Attached are revised copies of the plans. The following is a summary of the revisions we have made to address your comments dated September 7, 2004. Comment. Lot 01, Block A does not include the side yard setback line. It should be indicated as 20 feet. Also the front yard and rear yard buildings lines should be extended across the PD portion of the lot. Response: The building line extends to the PD limit on Lot 1, Block A, since no commercial buildings are allowed within the P.D. Comment. The vicinity map should indicate that the site extends from Keaton Road to iH 35. it currently stops about 2/3 the distance. Response: The vicinity map now shows site extends from Keaton Road to IH 35 service road. Comment. Since the existing downstream storm sewer system appears to be designed for the. 10 year storm and'.then must demonstrate that the 100 year storm will remain within the right of way of the downstream streets until it reaches Duck Creek. Response: See attached drainage report. We do not intend on increasing flow in Keaton Road between the site and Duck Creek Road. Comment. Recent storm events have resulted in the flooding of a home on Rising Star, adjacent to Duck Creek. Please demonstrate that the additional flows to Duck Creek on the upstream side of the Keaton Road culverts will not further impact the flooding or cause the ZAENT REC)ORM1000-10991103911039 - LT01 Lee Allison comwco&doc Lee Allison City of Sanger September 21, 2004 Page 2 home to flood more often. The City is communicating with the county regarding improvements to the culverts. Response: See attached drainage report. We do not intend on increasing flow in Keaton Road between the site and Duck Creek Road. Comment. Developer originally proposed making downstream drainage improvements in lieu of detention. These improvements should be identified and resolved prior to approval of the preliminary plat. Response: See attached drainage report. We are proposing on -site storm water management, facilities to be maintained by the homeowner's association. , • As.` an alternate,: owner. may contribute to the off -site ; improvement as -discussed. With the revised drawings and ;:drainage report, ,.we should meet the City of Sanger requirements and hope that you will be able to recommend approval of the Preliminary Plat. Sincerely, Greg ands, P.E. GEES, Inc. GE/nas Encl. copies revised plans Z:\SENT RECORDS\1000-1099\1039\1039 - LTOI Lee Allison comments.doc FROM : THE A 1 I SON FAMILY PHONE NO. : 817 380 9431 Sep. 21 2004 12: 01AM P1 Allison Engineering 611 Pecan Creek Road, I)enton, Texas 76207 (940) 380-9453 Off/Home (940) 380-9421 Fax ieptember 7, 2004 W Jack Smith City Manager City of Sanger P.O. Box 1729 "anger, Texas 76266 k:e: Brooke Hill Village Preliminary Plat r year Mr. Smith: Y ! Allison Engineering recommends dental of the preliminary plat. The site is located m ithin the City Limits of the City of Sanger. C ur comments include: ➢ Lot 01, Block A does not include the side yard setback line. It should be indicated as 20 feet. Also the front yard and rear yard building lines should be extended across the PD portion of the lot. ➢ The vicinity map should indicate that the site extends from Keaton Road to I14-35. It currently stops about 2/3 the distance. ➢ Since the existing downstream storm sewer system appears to be designed for the 10 year storm, and then must demonstrate that the 100 year storm will remain within the right of way of the downstream streets until it reaches Duck Creek. ➢ Recent storm events have resulted in the flooding of a home on Rising Star, adjacent to Duck Creek Please demonstrate that the additional flows to Duck Creek on the upstream side of the Keaton Road culverts will not further impact the flooding or cause the home to flood more often. The City u communicating with the county regarding improvements to the culverts. ➢ Developer originally. proposed making downstream drainage improvements in lieu detention. These improvements should be identified and resolved prior to approval of the preliminary plat. Al (icon Engineering's review of submittals for land development projects is only intended to establish a reasonable level of confidence that the developer is complying wi A applicable rules and regulations. Our review is not intended to provide quality coitroi nor assure anyone that the development is fully compliant. The responsibility for -CO. nplianee remains solely with the developer throughout the process, from zoning and pk tting through construction and the warranty period. The developer is responsible for co) recting all deficiencies, regardless of the time they are discovered. P*F I of 2 FROM : THE A_L•ISON FAMILY PHONE NO. : 817 380 9431 Sep. 21 2004 12:02AM P2 JVe appreciate the opportunity to continue providing professional services for the City of Sanger. Please call if you have any questions or need any additional information or .,larification. tcspectfulIy Submitted, ,lllison ,E�rgFitrerurg I.ee K Allison, PE., NSPE l:c: Rose Chavez Eddie Branham „ John Henderson Mike Pieter. Allen IlWsell PW2ofY lA AMdM PAaUMAN& M aMd 9kA"WMA MA S&W~ tea! Cap W TARM GREG EDWARDS ENGINEERING SERVICES, INC. 1621 AMANDA COURT PONDER, TX 76259 (940) 482-2907 PH (940) 482-8128 FX www.GEES.us Wednesday, August 11, 2004 Lee Allison, P.E. Allison Engineering 611 Pecan Creek Road Denton, TX 76207 Ph: (940) 380-9453 Fx: (940) 380-9431 RE: Brooke Ifill Village . Dear Lee: As we have discussed, the City of Sanger does not appear to have specific drainage requirements (fisted in their Subdivision Ordinance. We have prepared the preliminary drainaiq computations in accordance with the City of Denton, 1990 Drainage Criteria Manual. Our preliminary cpmpptations address some of the concerns and some of the dcvelopment options that might be required on the Brooke Ifill Village project as follows. • Keaton. Road, in its existing condition, does not have capacity within its curbs and pipe system to convey th} 10-year storm. Our estimates show that a 100-year storm will use approximately • 94% of the allowable capacity within the right-of-way. Development of Brooke ITill Village will increase the 100-year storm by approximately 15% over existing conditions. This will either overload Keaton Road or cause additional flow to go down Laney and Benjamin Streets. • Based on the preliminary flow estimates, we have estimated that approximately 1 acre-foot of detention storage will be required to mitigate the impact of the proposed develop rent. The , attached on -site Detention Pond cost estimate shows the anticipatk. cost of confietting a proposed detention pond to the proposed on -site storm sewer system. • Our prelimmiry drainage computations indicate that the Laney Street system does not appear to meet the 1990 City of Denton Drainage Criteria. The attached off -site storm sewer cost estimate assumes that a storm sewer system be constructed. from Duck Creek Road along Laney Street to Keaton Road. We have tried to size the Z.%Ml r REC ORW%1000-109911039\1039 p dWdmry &%imp repart2004408-11.doc Lee Allison, P.E. Allison Engineering August 11, 2004 Page 2 system so that it will provide relief to the Keaton Road system and convey up to the 10-year storm underground along Laney Street. From our discussions it appears that there is a home near the intersection of Keaton Road and Duck Creek Road that is already experiencing flooding downstream of Brooke Hill Village. Either a detention pond to mitigate run-off increases or off -site improvements to mitigate damage potential appear to be needed to protect our clients from potential litigation due to the proposed development. From our discussions, it appears that the Council may be more interested in participating in an upgrade to the Laney Street system than allowing an on -site detention pond. After your review of this information we would like to meet with you to discuss your recommendations to the City, and` see if there is additional information that would assist you with your recommendation,. Sincerely, !�� Gr ards, P. E. GEES, Inc. GE/nas Encl. Construction Cost Estimate — Off -Site Storm Sewer Construction Cost Estimate — Off -Site Detention Pond ZASENT RECORDS\1000-1099\1039\1039 preliminary drainage report2004-08-11.doc BROOKE HILL VILLAGE, SANGER, TEXAS CONSTRUCTION COST ESTIMATE - AUGUST 10, 2004 ON -SITE DETENTION POND ITEM QUANTITY UNIT PRICE EXTENSION DETENTION POND 18" RCP, CLASS III 200 LF $32.00 $6,400.00 POND EXCAVATION & GRADING 1,000 CY $4.00 $4,000.00 POND OUTLET STRUCTURE 1 EA $5,000.00 $5,000.00 TOTAL DETENTION POND $15,400.00 ESTIMATED CONSTRUCTION CONTINGENCY ENGINEERING TOTAL ESTIMATED CONSTRUCTION - APPROX. $15,400.00 $2,300.00 $2,300.00 $20,000.00 Page 1 BROOKE HILL VILLAGE, SANGER, TEXAS CONSTRUCTION COST ESTIMATE - AUGUST 10, 2004 OFF -SITE STORM SEWER ITEM DRAINAGE IMPROVEMENTS 30" RCP CLASS III 36" RCP CLASS III 42" RCP CLASS III 48" RCP CLASS III HEADWALL I CURB INLET JUNCTION BOX REMOVE & REPLACE EXISTING PAVEMENT TRENCH SAFETY TOTAL DRAINAGE IMPROVEMENTS QUANTITY 1,000 LF 375 LF 300 LF 60 LF 2 EA 10 EA 4 EA 2,500 LF 2.185 LF ESTIMATED CONSTRUCTION CONTINGENCY ENGINEERING TOTAL ESTIMATED CONSTRUCTION - APPROX. UNIT PRICE $46.00 $58.00 $92.00 $100.00 $5,000.00 $2,100.00 $2,500.00 $20.00 $1.00 EXTENSION $46,000.00 $21,750.00 $27,600.00 $6,000.00 $10,000.00 $21,000.00 $10,000.00 $50,000.00 $2,185.00 $208,935.00 $20,532.50 $20,532.50 $250,000.00 Page 1 MEMO October 11, 2004 To: Planning and Zoning Fr: City Secretary/Assistant City Manager Rose Chavez Re: Item 2 - Copperfield Estates This item is being placed on the agenda with staff s recommendation to deny it. A plat must be acted on within 30 days of receipt, unless a waiver has been received from the developer. The insufficient items on the engineer's letter have not been addressed, and a waiver has not been received. The surveyor indicated he did not feel the developer intended to proceed with this plat. FROM : THE A"-LISON`FAMILY PHONE NO. : 817 380 9431 Aug. 25 2004 08:34PM P2 ugust 23, 2004 Mr. Jack Smith City Manager City of Sanger P.O. Box 1729 Allison Engineering 611 pecan Creek Road, Denton, Texas 76207 (940) 380-9453 Off/Home (940) 380-9421 Fax Copperfield Addition Preliminary Plat Smith: Wison Engineering recommends &nt'af of the preliminary plat. The site is located in the mtraterritorial jurisdiction (ETA of the City of Sanger. Therefore Denton County regulations must be met or exceeded as well. Dur comments include: > Provide a turn around at the end of the drive to accommodate emergency and service vehicles as well as visitors. ➢ The preliminary plat must inc)ade all of tlae tract owned by Thomas J. Zimmerer. ➢ A street variance is needed from the City for a private access in the ETJ. Confirm Denton County will allow dlw private access easement to serve the proposed 6 ots. Allison Engineering's review of submittals for land development projects is only intended to establish a reasonable level of confidence that the developer is complying with applicable rules and regulations. Our review is not intended to provide quality control nor assure anyone that the development is fully compliant. The responsibility for compliance remains solely with the developer throughout the process; from zoning and platting through construction and the warranty period The developer is responsible for correcting all deficiencies, regadless of the time they are discovered. Pap l of2 9tAMMA N - 9>iraTa dM A& SuAdVM &W Soper el&,, FROM : THE I_LI-" FAMILY PHONE NO. : 817 380 9431 Aug. 25 2004 08:34PM P3 IJe appreciate the opportunity to continue providing professional services for the City of anger. Please call if you have any questions or need any additional information or c larification. Lespecdidly Submitted, .eOwn Fj4g&seerft G � I.ee K. Allison, P.E., NSPE ":c: Rose Chavez Eddie Branham Join Henderson Mike Prater J.E. Thompson Pap zorx waffamwPAN And 9k%&wM16 ars AWsomwTAMK