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HomeMy WebLinkAbout00070254FACSIMILE COVER SHEET CITY OF COLLEGE STATION DEVELOPMENT SERVICES 1101 Texas Avenue South, PO Box 9960 College Station, Texas 77842 Phone (979) 764 -3570 / Fax (979) 764 -3496 Date: _� " a� �a # of pages including cover:_ h' jvu &dnotmomme a complete fax, please call ourofllce immedratelyfora newtnwsmt&,d 1'O:iC�aGr�U�� FAX: COMPANY: \-�\�CkQP RE: FROM PHONE: (979)764 -3570 COMPANY: City of College Station REMARKS: ❑ Urgent ❑ For your review ❑ Replay ASAP ❑ FYI 01/28/02 13:57 %Y979 764 3496 DEVELOPMENT SVCS 10001 ACTIVITY REPORT TRANSMISSION OK TX /RX NO. 0906 CONNECTION TEL 2547762924PPP152 CONNECTION ID START TIME 01/28 13:55 USAGE TIME 02'01 PAGES 5 RESULT OK 01/28/02 13:54 $979 764 3496 DEVELOPMENT SVCS 10001 ACTIVITY REPORT ** TRANSMISSION OK TX /RX NO. 0904 CONNECTION TEL 2547762924PPP152 CONNECTION ID START TIME 01/28 13:54 USAGE TIME 00'31 PAGES 1 RESULT OK : Shine Volk Re: pe bble creek hase 7 and 8 a e ... From: Veronica Morgan To: Paul Kaspar, SVOLK @City of College Station.City H... Date: 2/18/98 4:59PM Subject: Re: pebble creek phase 7 and 8 I'd have to look at it again but my recollection was that it needed a preliminary plat of some sort but I'm remembering just outlines of phases, etc. not something huge. but i may be not remembering right. maybe we can talk about this during our next review session >>> Shirley Volk 02/18/98 09:51AM >>> Have you looked at the most recent master plan to see if it has enough detail to suit the City's needs to replace the preliminary plat? My recollection is (without looking it up) that it does not, but if you engineers and planners are comfortable with going right to final plat, it's certainly o.k. with me! Only staff and P&Z would look at it anyway since Council has already seen the master plan a long time ago. >>> Paul Kaspar 02/17/98 03:11 PM >>> I spoke to Tony Tomchezen with the Wallace Group today regarding the above phases. They want to go straight to Final plat on those phases since they have done a master preliminary plan already that shows those phases. I explained to him that is OK as long as that master plan shows the detail we need and that they are not varying too much from that plan. He thought they were OK and could go straight to Final plat. If I have told him wrong, would you please let me know soon, or call Tony T. back. He spoke to you many months ago about it and thought you said they needed to do a preliminary plat. They don't mind, its just they don't want to do extra work if it is not necessary. He is planning on submitting a new master plan to us after these two phases are built. Also, we are supposed to be getting the drainage report that we have been waiting for, soon. CC: Jane Kee, Natalie Ruiz The Gale Arnold, R.P.L.S. George Jezek, A.I.A. Wallace Mike Keahey, RE„ R.P.L.S. June E. Lykes, P.E. Group, Inc. J.A. "Jake" Pavlas, Jr„ P.E. Engineers ■ Architects ■ Planners ■ Surveyors Chris Ruiz, P.E. `V George E. "Jed" Walker, Jr., P.E. Waco ■ Killeen ■ Austin ` R.E. "Bob" Wailace, P.E., R.P.L.S. Otto E. Wiederhold, P.E. O NN John F. Winkler, P.E. January 14, 1998 City of College Station P. O. Box 9960 College Station, Texas 77842 -0960 ,\ Attn: Sheri Volk U Re: Pebble Creek Phase 7A, Variance Request Dear Sheri: On behalf of the owner of Pebble Creek Development Co., Mr. F.M. Young, we hereby request a variance to the City of College Station's Subdivision Ordinance Specifically, the Developer desires not to extend Pebble Creek Parkway nor the 12 -inch water line during the construction of Phase 7A because of the following reasons: • The extension will not be used by vehicular traffic. • The 12 -inch waterline will not have any services, and thus the potential for stagnant, water will be high. • The pavement will most likely suffer from surface failures since it will not be ® ) "exercised" by traffic. • The extension is not needed for emergency vehicles. The Developer understands that he will have to complete the parkway and waterline prior to opening any lots to the south of Phase 7A (see attached map). If you need any additional information regarding this issue, please call me. Sincerely, )eorge E. "Jed" Walker, Jr. P.E. The Wallace Group, Inc. I I Cc: F.M. Young Davis Young - File #8803 GW:ab Y" P.O. Box 22007 - Waco, Texas 76702 • 8225 Central Park Drive • Waco, Texas 76712 (254) 772 -9272 • Telefax (254) 776 -2924 �•� CITY OF COLLEGE STATION PLANNING DIVISION \ / POST OFFICE BOX 9960 1101 TEXAS AVENUE COLLEGE STATION, TEXAS 77842.9960 (409) 764 -3570 January 28, 2002 Ryan A. Virden, P.E. The Wallace Group P. O. Box 22007 Waco, Texas 76702 RE: Pebble Creek Phase 7B -1 Dear Ryan: The City of College Station is now allowing cement stabilized base in accordance with the attached Specification No. 203A. You may revise your construction documents in accordance with this specification. Sincerely, Teddy D. o, P.E. Asst. City Engineer CC: Bridgette George Asst. Development Manager CITY OF COLLEGE STATION SPECIFICATION NO. 203A CEMENT STABILIZED BASE (PLANT MIX) 203A.1 Description. This Item shall govcm the construction of a Portland cement treated base (CTB) course composed of gravel base material, Portland cement, and water that is mixed at a central mixing plant and constructed in accordance with the typical sections, lines, grades and thicknesses shown on the plans. The CTB materials and placement shall conform to the requirements outlined in ITEM 276 of the STANDARD SPECIFICATION FOR CONSTRUCTION OF HIGHWAYS, STREETS, AND BRIDGES (hereinafter TxDOT Specifications), except as modified herein. 203A.2 Materials. Materials shall conform to the following requirements: (1) Base Aggregate Materials. The sand and gravel aggregate used in the cement treated base mix shall be "pit run" material meeting the gradation requirements indicated in Table 1. Gradation tests shall be performed at the direction of the City and shall be obtained from the conveyor belt at the mixing plant. (2) Portland Cement. Portland cement shall be either Type I, IP, or II confonning to the requirements of Item 524, "Hydraulic Cement," of the TxDOT Specifications. (3) Water. Water shall conform to the requirements of Item 421, "Portland Cement Concrete," of the TxDOT Specifications. TABLE 1. GRADATION REQUIREMENTS FOR CTB MIX SIEVE ALLOWABLE! RANGE SIZE OF PERCENT PASSING Percent to percent Size or Number Minimum'' Maximum 1 1 100 1 100 #4 1 40 1 90 4200 1 0 1 10 NOTES: Gradation shall be determined by the "wet" sieve method (ASTM D 422) In addition the materials shall meet the following Atterberg limit requirements: LL < or = 30 PI <or =7 203A.3 Compressive Strength. Compressive strengths of the cement treated base shall be the requirements listed in Table 2 Specification 203A- Page I of 4 Revised 1/25/02 TABLE 2. SEVEN (7) DAY COMPRESSIVE STRENGTHS REQUIREMENT FOR CEMENT STABILIZED BASE MIX I CATEGORIZATIONS R AN GE STRENGMH pESSIVE I MET CONTENT, % Acceptable Limits 1 200 to 700 1 2 to 9 Target Limits I 300 to 500 Maximum. & Minimum 3to4 Cement content will be selected by the Design Engineer or the City based on compressive strength tests determined by a mix design provided by the Contractor. Compressive strengths shall be verified during construction by obtaining field samples of the mixed materials at two times during each day of placement. The material shall be taken to the laboratory_ and three cylinders of compacted materials formed. Unless otherwise shown on the plans, the materials shall be compacted in accordance with Test Method Tex -120 -E at the field moisture content. The cylinders shall be moist cured and two of the three cylinders tested for compressive strength at 7 days. The third cylinder shall be held in reserve for possible later testing. The compressive strength of the tested cylinders shall meet the requirements of Table 2. 203A.4 'Construction Methods. (1) General. A completed base course shall meet the minimum thickness requirements indicated on the Plans and shall be uniformly treated, free from loose or segregated areas, of uniform density and moisture content, well bound for its full depth and with a smooth surface. (2) Preparation of Subgrade or Existing Subbase. Prior to placing the cement treated base, the subgrade or existing subbase shall be shaped to conform to the typical sections, as shown on the plans or as established by the Project Engineer or the City. The Contractor shall proof roll the roadbed in accordance with Item 216, "Rolling (Proof) ", of the TxDOT Specifications before placing treated material. Soft spots shall be corrected as directed by the Project Engineer or the City. (3) Mixing and Placing. The cement, base material, and water shall be thoroughly mixed in a central batch plant. After mixing is completed, no additional water shall be added to the mixture unless otherwise approved by the Project Engineer or the City. Cement treated material shall be placed only on that area where the compacting and finishing operations can be completed during the same working day. Unless otherwise approved by the Engineer, the cement treated base operation shall not be started when the air temperature is below 40° F and falling, but may be placed when the air temperature is 35° F or above and rising. The temperature will be taken in the shade and away from artificial heat. Cement treated base shall not be placed when weather conditions are unsuitable in the opinion of the Project Engineer or the City. (4) Compaction Method. Compaction shall continue until the entire depth of mixture is Uniformly compacted by "Density Control ". Specification 203A- Page 2 of 4 Revised 1/25/02 Compaction shall be completed within two (2) hours of the addition of water to the dry mixed material. However, when multiple lifts are permitted, compaction of all lifts shall be completed within five (5) hours after the addition of water to the treated base used in the first lift. After mixing, the cement treated material shall be hauled to the roadway and compaction begun immediately after placement. Throughout this entire operation, the shape of the course shall be maintained by blading and the surface upon completion shall be smooth and in conformity with the typical sections, lines and grades as shown on the plans or as established by the Project Engineer or the City. Unless otherwise shown on the plans, each course shall be compacted to the extent necessary to provide not less than 95 percent of the density as determined by Test Method Tex - 120 -E, Part II. At the beginning of compaction, the percentage of moisture in the mixture shall be within + three (3.0) to — two (2.0) percent of optimum as determined by Test Method Tex - 120 -E, unless otherwise approved by the Project Engineer or the City. The percentage of moisture will be determined in accordance with Test Method Tex- 103 -E. If the percentage of moisture is outside the allowable tolerance, the Contractor shall adjust operations to meet this requirement. Roadway density will be determined by Test Method Tex -115- E. Field moisture and density tests shall be performed every 1,000 linear feet of roadway length. When the material fails to meet the density requirements or should the material lose the required stability, density or finish before the next course is placed or the project is accepted, the treated material shall be removed and replaced, unless otherwise approved by the Engineer. Removal and replacement will be at the Contractor's expense. (5) Finishing and Microcracking. Immediately after compaction, the final course shall be clipped, skinned, or tight bladed by a maintainer or subgrade trimmer to a depth of approximately %. inch, removing all loosened materials. The loosened material shall be disposed of at the Contractor's expense and at a location approved by the Project Engineer or the City. The surface shall be rolled immediately with a pneumatic tire roller, adding small increments of moisture as needed during rolling. (6) Initial Curing. The cement treated base shall be kept wet for a period of 24 hours after completion of compaction. This may ackieved by sprinkling with water. (7) Mircrocracking. After the initial 24 hours curing period, the finished CTB course shall be tested to determine the stiffness of the layer. The stiffness measurement of the CTB shall be determined using an approved device, such as the Humboldt Stiffness Gauge (HSG), or equivalent. One test will be made along each 100 ft section of street or as determined by the City. The test location shall be marked with paint for later retesting. If the initial HSG readings are in the range of 50 to 60 (MN /m), then microcracking of the CBT course shall begin. If the readings are below the stated range, the CTB course shall be allowed to cure for an additional 24 hours and stiffness readings obtained at the end of the 24 hour period and prior to the commencement of microcracking operations. Microcracking of the CTB shall be accomplished by a 12 ton steel -wheel vibratory roller, traveling at a speed of approximately 2 mph and vibrating at maximum amplitude (or as directed by the Project Engineer or the City). The section shall have 100% coverage exclusive of the outside 1 foot so as to induce minute cracks in the CTB. The microcracking operations may be terminated when a minimum 40% reduction in the stiffness of the CTB course is achieved as compared to the intial (pre- cracked) readings. After one pass of the vibratory roller, the stiffness of the CTB shall be determined. Based on the target total stiffness minimum reduction of 40 %, it will be decided if additional passes are required. Additional passes of the steel roller may be required to achieve the desired crack pattern or section modulus as determined by the Project Engineer or the City. The CTB course shall be tested for stiffness Specification 203A- Page 3 of 4 Revised 1/25/02 after each additional rolling. It is anticipated that the roller will have to make between approximately I to 4 passes to achieve the required reduction in stiffness. (8) Final Curing. After cessation of microcracking the section shall be moist cured for a period of at least 48 hours. (9) Surface Coating. Following completion of the microcracking operations, a prime coat consisting of MC -30 asphalt shall be applied to the surface of the CTB course in accordance with the requirements of Item 312, "Prime Coat," of the TxDOT specifications. If significant cracking occurs in the CTB following application of the prime coat, the cracks shall be sealed. Significant cracking will be determined in the field according to a criteria agreed to by the Contractor, the Project Engineer, and the City. (10) Crack Sealing. Any pavement surface cracks which may occur during the first year following completion are required to be cleaned of all foreign debris and sealed with hot applied sealant material meeting ASTMD #3405 -78 and Federal Specification #SS- S- 1401B. Specification 203A- Page 4 of 4 Revised 1/25/02 ev, ii 4; C Jan. 27 2002 12:56PM PC 9796906081 P.1 PEBBLE `CREEK 4500 Pebble 'Creek Parkway College Station, TX 77845, Development Company (979)690 -0992 Fax (979)690 -6081 PIease deliver the following pages to: Name: Company: Fax Number: Total Number of Date: From: Comments: — F-X M M. q TPAT 4 PM mmmm■rr*+tti own mm v �■rmmmmmammmm�►�'d polity a: i p b , in JIM m ;•,r ; !! 1 1 ~ _4W . 4% i ���: all ♦� an • ■r fame ay;14 �!• •a a -_ am -*, •a ; �■ W� sw WI ■t • l! M Pow, 'glo ry .. X111► low dmm 4qr �� 4 ERI & N Lama A I -- Fwt - %4 4m 'm Amiam JEBBLE A CREEK DEVIFLC The Wallace Group, Inc. Engineers ■ Architects ■ Planners ■ Surveyors 8225 Central Park Drive, Suite 100 P.O. Box 22007 Waco, Texas 76702 -2007 (254) 772 -9272 FAX (254) 776 -2924 LETTER OF TRANSMITTAL To: The City of College Station, Developmental Services Attn: Bridget George From: Kevin Hessel Project: Pebble Creek, Phase 7B Project No.: 10173 Date: January 10, 2002 cc: File Enclosed Please Find The Following For Your Use: Copies Dated Description 13 Final Plat, Phase 7B 1 Application 1 Checklist 1 Check in the amount of $400.00 for fees 2 Construction Plans Remarks: \S o � o� The 8225 Central Park Drive, Suite 100 P.O. Box 22007 Wallace Waco, Texas 76702 -2007 Group Inc (254) 772 -9272 FAX (254) 776 -2924 Engineers ■ Architects ■ Planners ■ Surveyors LETTER OF TRANSMITTAL To: The City of College Station, Developmental Services Attn: Bridget George From: Kevin Hessel Project: Pebble Creek, Phase 7B Project No.: 10173 Date: January 28, 2002 cc: File Enclosed Please Find The Following For Your Use: Copies Dated Description 10 Final Plat, Phase 7B -1 1 M lar Remarks: TRANSMISSION VERIFICATION REPORT TIME 01/1612003 15:46 NAME COCS DEVELOPMENT SER FAX 9797643496 TEL 9797643570 SER.# BROE2J341073 DATE,TIME 01/16 15:46 FAX N0. /NAME 96906081 DURATION 00:00:31 PAGE(S) 02 RESULT OK MODE STANDARD ECM (i s �� Tie C�it of ! Co Stat �? � 0n Texas r .E the P E lorin th Fut P.O. Box 9960 1101, Texas Avcnue • College Station, TX 77842 • (979) 764 -3500 www,ci.college- station Ax.us January 16, 2003 Mr . Davis Young Pebble Creek Development 4500 Pebble Creek Parkway College Station, TX 77845 Re: Pphble Creek 78-1 Dear Davis, This afternoon I personally inspected the access drive intended to serve this subdivision phase. I think we are very close and with improvements to the following 5 areas on the access road and the erection of the emergency access sign, I believe we can file the plat. In each of these cases, the intent is to provide a road that will allow a passenger vehicle to pass without creating ruts in excess of six inches in depth in wet weather, With the exception of the areas listed below, I believe that the rest of the access road currently meets this requirement. 1. The area immerliAtaly Rni,th of thou r1 d - rlP - cRn nn Pi Rnrlr niacrrc art ;fil,i.,.,ul I Cr= OF COMPLETION Date: 11/2602 CITYOFCITYOFCOI LEGESTATION COLLEGE STATION, TEXAS RE: COMPLETION OF Pebble Creek Phase 7B1 To Whom It May Concern: The purpose of our letter is to request that the following listed improvements be approved and accepted as being constructed under City inspection and completed according to plans and specifications as approved and required by the City of College Station, Texas. This approval and acceptance by the City is requested in order that we may finalize any subcontracts and to affirm their warranty on the work This approval and acceptance by the City of the improvements listed below does hereby void the letter of guarantee for the listed improvements on the above reference project. The one -year warranty is hereby affirmed and agreed to by Young Contractors and by their sub- contractors as indicated by signatures below. WORK COMPLETED Streets Water Sewer Electric Storm Sewer DATE 11/1802 11/1802 11/1802 11/1802 11/1802 Owner: Pebble Creek Development Company Signature: Contractor Young Contractors Signature: ACCEPTANCE & APPROVAL Representative City Engineer TRANSMISSION VERIFICATION REPORT TIME 11126/2002 16:44 NAME COCS DEVELOPMENT SER FAX 9797643496 TEL 9797643570 SER.# BROE2J341073 DATE DIME 11126 16:43 FAX N0. /NAME 9- 7643489 DURATION 00:00:22 PAGE(S) 01 RESULT OK MODE STANDARD ECM I okiN DIM) fl I W In �iY 1 Date: 11i2M2 G.TTY0FC= COLLBGFSTA.7T0N CD T EN - AS Pebhle -Creek EbM r_Bx To Whom It May Concern: The purpose of our letter is to request that the following listed improvements be approved and accepted as being consiirLwiol under Ci t y iiuspuction and amplowd according to plans and specifications as approved and required by the City o8 College Station, Texas. This approval and acceptance by the City is requested in order fbat wp msy finalim, any rnjb(rmtrac-ft and to afti.m their warranty on, the work This approval and acceptance by the City of the improvements listed below does hereby void the letter of guarantee for the listed improvements on the above reference project. The one -yeas warranty is hcroby affirmed and agreed to by Young Contm- c_tors and by their sub- contractors as indicated by signatures below W0 iif il' t DATE 11/.1812 Water. Sewer 'Storm Sewer 11/18M x1/1"2 _ 11/18 /02 11/1.8x82 11/26/2002 16:43 9797643496 COCS DEVELOPMENT SER PAGE 01/01 I a'�MMi11� 1 ' t.1 ►SIG AIM 1 � Dank-' 11i28i02 C = 0 F C= OF CV L L E G. E S TA . T. IO N (MLEGESTAWON, T E xAS 0 0 11 En w U To Whom It May Concern: The purpose of our letter is to request that the followi-ng listed improvements be approved and acctTf6d as being crnaii•uufe3 umler Ci.ly iiusIx -ctiun and tvmpleted according to plans and WdUcations as approved and required by the City of College Station, Texas This approval and acceptance by the City is requested in order that we may finalive n,ny 4i lw- nufraets and to affirm their warranty on. the work. This approval and acceptance by the City of the improvements listed below does hereby void the letter of guarantee for the listed improvements on the abovA reference project The one year warranty is hereby affirmed and agreed to by Young Contractors and by their suh. eontrACtols as indicated by signatures below. WORK COMPLETED Streets Water Sewer Storm. Sewer 11/18A2 l.1/1802 IMU 11/18 11/18/02 Owner: P!c,,bbl Creek IWP.I mien_t Contractor: Y-qung Conkmtms Company Signat�ire: AOCflPTANCH & AP�$OVAL NOV -27 -2002 WED 08:53 AM C.S. PUBLIC WORKS FAX NO. 9797643489 P. 01 11/26/2002 16:43 9797643496 COCS DEVELOPMENT SER PAGE 01101 OITT OF GllT0FC0. .URGE STA,Tr0N (VIdLMESTA7I0K TEXAS 1a' _ —46� j f)�is�� Tb Whom It Jimmy Cbnoern: The porpope of our letinr is to request that the Wowbg Listed improvemoate be approved and WCepQd a$ being C004IM101 u,crler 011y iuukcwlic,u wd owliplew wwrftg to platy And spaclAcallang as approved and npired by the City of Colloge SUN(m, Tab. This apMval sad weeptan by the city is requested in ovior that we may Pinalivr. nny and to affirm their cvarrnnly on. the vwk This approval and eeaep moe by the City of the impto"ments Listed Imlow does h areby void the lei of guarantee for tibe tinted improvements on the above reference pwiect The one warmty is heroby afffii ed wd agreed to by Yms! Contractors and by theirr Wa - matirwtovs as indica4ed by signatares below. NOM MUM= DATE strata 114 BM _ -- Water 5erwo r XI/Ttidl .E.lee_trio S#Dxm Sewer Ownov Poh g Cr .pk T)pvolWmcnf� C4111 '9 #Al: W e' .Rrpmandpr clifBnginerr The Ci of Cole a Station, Texas Embracing the Past, Exploring the Future. P.O. Box 9960 1101 Texas Avenue • College Station, TX 77842 (979) 764 -3500 www.ci.college- station.tx.us January 16, 2003 Mr. Davis Young Pebble Creek Development 4500 Pebble Creek Parkway College Station, TX 77845 Re: Pebble Creek 713-1 Dear Davis, This afternoon I personally inspected the access drive intended to serve this subdivision phase. I think we are very close, and with improvements to the following 5 areas on the access road and the erection of the emergency access sign, I believe we can file the plat. In each of these cases, the intent is to provide a road that will allow a passenger vehicle to pass without creating ruts in excess of six inches in depth in wet weather. With the exception of the areas listed below, I believe that the rest of the access road currently meets this requirement. 1. The area immediately south of the cul-de -sac on Piping Rock needs additional rock for approximately 30 feet to get from the street over the rise in ground level. 2. The access road intersection area approximately 150 feet south of the cul -de- sac needs compaction and possibly additional rock. 3. At a location approximately half way between the large rock pile and the eastern most PVC culvert, additional rock is needed along the southern edge of the road for about 40 feet where standing water is encroaching onto the roadway. 4. Additional rock is needed over the western most PVC culvert. 5. Grading and additional rock is needed where the access road joins the main road in the future Pebble Creek Parkway right of way. Home of Texas A6sM University r When this work is completed, please inform me and I will return for final inspection. Once the access road is acceptable, I can give the direction for the plat to be filed. As always, do not hesitate to call if you have any questions or comments. Sincerely, , 0 1 t Brett McCully, P.E. Assistant City Engineer Cc: Kelly Templin Jon Mies � k Deborah Grace - Final Plat for Pebble Creek Phase 7 -131 Page 1 From: Natalie Ruiz To: Deborah Grace Date: 2/8/02 10:01 AM Subject: Final Plat for Pebble Creek Phase 7 -61 Please put a note in the folder or on your tracking sheet that the emergency access to Pebble Creek Parkway MUST be accessible & properly signed before the plat is filed for record. This was a condition of the rezoning that Council placed on this phase. We cannot miss this condition. So, do whatever you think is best about documenting this so that we don't file the plat without this being met: Thanks! o �k�� Ole t x1c j�bble Cmt p o'1 o 7