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03/14/2002-PZ-Agenda Packet-RegularAGENDA PLANNING AND ZONING COMMISSION THURSDAY, MARCH 14, 2002 201 BOLIVAR 7:00 P.M. 1. Call Meeting to Order. 2. Approve Minutes: February 21, 2002 3. Conduct Public Hearing to Consider a Replat of the Sims Addition, Lot 111 and 2R, Block 1, Being 1.00 Acre in the Henry Tierwester Survey, Abstract 1241. Property is located on Fifth Street. 4. Consider and Possible Action Regarding a Replat of the Sims Addition, Lot 111 and 2R, Block 1, Being 1.00 Acre in the Henry Tierwester Survey, Abstract 1241. Property is located on Fifth Street. 5. 6. Consider and Possible Action on Preliminary Plat for Sanger Industrial Park, Phase H. Adjourn. .E�.OF.S,q.lrrrrfrri,�� ., "� Vim:' � ••�'�� i 4aL-t� Rosalie Chavez, City Secre .; -//- 0,2 y" 3o P/*l, Date and Time Posted This facility is wheelchair accessible and accessible parking spaces are available. Requests for accommodations or interpretive services most be made 48 hours prior to this meeting. Please contact the City Secretary's office at 940 458-7930 for further information. MINUTES: PLANNING AND ZONING COMMISSION FEBRUARY 21, 2002 PRESENT: Jack Richardson, Shelley Roland, Ralph Cain, Polly Dwyer, Joe Falls, Mark Bulger ABSENT: Ken Perry OTHERS PRESENT: City Manager Jack Smith, City Secretary/Assistant City Manager Rose Chavez, Administrative Assistant/Assistant City Secretary Samantha Renz 1. Jack Richardson called meeting to order. 2. Approve Minutes - January 31, 2002 Joe Falls moved to approve the minutes. Shelley Roland seconded, Motion carried unanimously. 3. Conduct Public Hearing to Consider a Zoning Request Change from AG (Agriculture) to 1-2 (Industrial - 2) on Property Legally described as Abstract 29, Tract 120, Being 2.00 Acres. The Property is located on Utility Road. Public Hearing opened. No Discussion. Public Hearing closed. 4. Consider and Possible Action Regarding a Zoning Request Change from AG (Agriculture) to I-2 (Industrial - 2) on Property Legally described as Abstract 29, Tract 120, Being 2.00 Acres. The Property is located on Utility Road. Shelley Roland indicated she had no problems with the request. Mark Bulger indicated he felt it was a good use for the property. Shelley moved to change the zoning from AG (Agriculture) to I-2 (Industrial - 2) on Property Legally described as Abstract 29, Tract 120, Mark Bulger seconded, Motion Carried unanimously. 5. Conduct Public Hearing to Consider a Zoning Request Change from AG (Agriculture) to 1-1 (Industrial -1) on Property Legally described as Abstract 29, Part of Tract 113, Being 4.00 Acres in the West Part of the Tract along Stemmons. The Property is located on Stemmons and Utility Road. Public Hearing opened. No Discussion. Public Hearing closed. 6. Consider and Possible Action Regarding a Zoning Request Change from AG (Agriculture) to 1-1 (Industrial -1) on Property Legally described as Abstract 29, Part of Tract 113, Being 4.00 Acres in the West Part of the Tract -along Stemmons. The Property is located on Stemmons and Utility Road. Discussed the proposed use for the property. Polly indicated she felt it was a good use for the property. Joe Falls expressed concerns regarding possible hazards of painting. Discussed that most likely the items he would manufacture will be painted once installed, not in the plant. Jack Richardson asked if they will be on Sanger Utilities. Stab indicated they would be. Polly Dwyer moved to approve the request. Mark Bulger seconded Motion carried unanimously. 7. Consider and Possible Action on a Preliminary Plat for Eagle Park, Phase H, Lots 1-7, Block A, Being 7.205 Acres in the Henry Tierwester Survey, Abstract 1241. Property is Located on F.M. 455 and Acker Street. Discussed current zoning and that it is Commercial. Shelley asked if the R.O.W. was the same as Heritage West. She indicated it should be in the same proportion down the road. Discussion that R.O.W. should be 120 feet on F.M. 455. Shelley expressed concerns about the sewer. She indicated there was a six inch line running behind the school. Eddie indicated they have already addressed the line. He indicated that 300 houses could go on that line before it will become a problem; however, they will do something with it before that point. Polly Dwyer moved to approve the Plat with the contingency that the R.O.W. is adjusted so that the width is consistent with the R.O.W. of all existing subdivisions along F.M. 455 and all future subdivision as well. Ralph Cain seconded. Motion carried unanimously. 8. Any Other Such Matters. City Secretary indicated this is the last time Any Other Such Matters will be on the agendas per the attorney's direction. 9. Meeting Adjourned. MEMO March 8, 2002 To: Planning and Zoning Commission Fr: Samantha Renz Re: Sims Addition - Replat Attached is the information regarding this request, the Engineer has indicated the plat conforms with the City's Subdivision regulations. r. ., ...,...� ........��..,', t ,....,. .„.:..>;: --ems::• : a r .. '.r vst_ .:.a t� v ��.vt�3:I:tlA�.w .?%LR...� v' 'ipp..yy 14.1,"a'r�' Y' r '• a MARK T. OwENs, P.E. GENERAL CIVIL CONSULTING ENGINEER March 6, 2002 Mr. Jack Smith City of Sanger P.O. Box 1729 Sanger, Texas 76266 Re: Sims Addition — Replat Sanger, Texas 3'� Review Dear Mr. Smith: Per your request I have completed the Yd review of the Replat as prepared and submitted by Alliance Area Surveying, Inc. for the project referenced above. My comments are as follows: 1. The Replat as submitted is in compliance with the requirements of the Subdivision Ordinance and I recommend approval. If you have any questions or need any further information, please call me at (940) 391-4845. 6SincerelyY;Z T. E. General Civil Consulting Engineer P.O. Box 596 PONDER. TX 76259 PHONE: 940-391-4845 FAX: 940•4790593 mdintrPriglide.net ..•i:F':-.'+Ks'.:� .t _. .. _x......-v..r::.} �y:[raytptt�..e<., �.�:.f.i.J:.��,!�:..♦I ;.a�ygi:.s•.i•���_..`.. `,e�.h.1t�{.-.�''L��: Fit - -- .._.... ..�.....t. .,.ram. '< MARK T. OWENS, P.E. GENERAL CIVIL CONSULTING ENGINEER March 4, 2002 Mr. Jack Smith City of Sanger P.O. Box 1729 Sanger, Texas 76266 Re: Suns Addition — Replat Sanger, Texas 22 Review Dear Mr. Smith: Per your request I have completed a I' review of the Replat as prepared and submitted by Alliance Area Surveying, Inc. for the project referenced above. My comments are as follows: 1. Need to indicate what the R-O-W width of P Street on the drawing. A corrected final plat will need to be resubmitted. Please have the developer return the marked - up final plat along with the corrected final plat. Once I have received and reviewed all re - submittals and find that they are in compliance I will issue final letter of acceptance. If you have any questions or need any fiuther information, please call me at (940) 391-4845. fMark�T. 'rely; Ow , P.E. General Civil Consulting Engineer 3%y - rall�d 5 i. left I'hcssa�e. on Voice Mai , make. eon-ecJ,'oo, yrsµbmi�j SG�v dw�c�l �o r 3/y . P.O. Box 596 PONDER. TX 76259 PHONE: 940-391-4845 FAX 940.479.0593 mdinty ighde.na ..._�w.s.�:-.�...i.:�i'I�'.: ��..� f� Y yl -t'., •�•r:••, _ _ ,�yyy( jj 1'3^. �'y�!{t M; 1 ./4r :� 4 - 1`j �•sC �WA:'1: 7-'T�_. a i'ti.��.I•. ,. (TI"R +^%,.,, ve��M.:. e J.f ... .'! .. y.� • Y ��+" ` it • MARK T. OWE r; P.E. GENERAL CIVIL CONSULTING ENGINEER January 28, 2002 Mr. Jack Smith City of Sanger P.O. Box 1729 Sanger, Texas 76266 Re: Sims Addition — Replat Sanger, Texas I'Review Dear Mr. Smith: Per your request I have completed a 1't review of the Replat as prepared and submitted by Alliance Area Surveying, Inc. for the project referenced above. My comments are as follows: w �dti . . �.....�►a - z According to the City's subdivision ordinance, a Replat does not have to have a preliminary plat submitted and approved prior to submittal of the plat but is required to meet all the requirements of a final plat as identified in the subdivision ordinance. I have include) a copy of the City's final plat checklist indicating which final plat requirements have been meet (OK) and which are not in compliance (NOT COMP.) with the subdivision ordinance. The construction plans need to show the following at a minimum: I. V Existing water, sewer, drainage and other utilities. 2. How the proposed property will drain. 3. How the proposed property will be serviced by existing water, sewer and other utilities. I have also included a copy of the final plat with my comments. As shown there are few corrections that need to be made including the following: 1. The bearing call -out in the description for west boundary line of the property does not match the drawing. 2. Need to indicate what the R-O-W width of 5'b Street on the drawing. 3. There are two City Engineering approval blocks — the one without the proper statement needs to be removed. 4. The vicinity map needs to be at the proper scale. A corrected final plat and construction plans will need to be resubmitted with a letter of compliance stating how each item on the final plat checklist that is currently not in compliance and how each item identified on the final plat was addressed. Please have the developer return the marked -up final plat and final plat checklist along with the corrected final plat and letter of P.O. Box 596 PONDER, TX 76259 PHONE: 940-391.4845 FAX:940-479-0593 mdinlx.,a ig1ide.nef `Yi.". f f _'�i.ii.MEa✓;:sr,:: �. .,.r 3` {.` - y • J-r.wari. 1 �.. .. w..�,r GNci : .ram Nw ': f >• 9 ^.F ��.it�..�./ �sa',T..�!� 4 �'. �'3i�i�lr ��E(iY���}"'a�plr, r���wr .,. �../s � ,�•'+.*tr1�!r7��_Y "♦��i� r c� �ihlW_+N� � q�.� ° .� .!: ��T�_ "�'.. "s`•. e�� 1. `'T"'tt .......�..�:� �s.r f.�..�.rp,•�;-.+,:q--`'r 1,.r <.+ 7 .. ,� ...�- a.....5,. .y�T..u... RK�T. cdwams, P.E••}.Y' GENERAL CML CONSULTING ENGINEER compliance. Once I have received and reviewed all re -submittals and find that they are in compliance I will issue final letter of acceptance. If you have any questions or need any further information, please call me at (940) 3914845. NTy; Ow ns, P.E. General Civil Consulting Engineer P.O. Box 596 PONDER. TX 76259 PHONE: 940-391.4845 FAX: 940.479.0593 mdinh,a iglide.net __ _ ..... . �wW �i +f. , h �itj.'1�'h� '� . • '� !t^R'!� •g6: � 3'•i� +ti • t � City of �iomepiace �ipeciai March 1, 2002 To: Property Owners Fr: Rosalie Chavez Re: Replat - Sims Addition, Lot IR and 2R,-Block 1 The City of Sanger's Planning and Zoning Commission will conduct a Public Hearing in the Council Chambers at 201 Bolivar on Thursday, March 14, 2002 at 7:00 P.M. to Consider a Replat of the Sims Addition, Lot 1R and 2R, Block 1, Being 1.00 Acre in the Henry Tierwester Survey, Abstract 1241. Property is located on Fifth Street. The City of Sanger's City Council will conduct a Public Hearing in the Council Chambers at 201 Bolivar on Monday, March 18, 2002 at 7:00 P.M. to Consider a Replat ofthe Sims Addition, Lot 1 R and 2R, Block 1, Being 1.00 Acre in the Henry Tierwester Survey, Abstract 1241. Property is located on Fifth Street. Attached is a form for you to sign stating whether or not you approve of this request. If for any reason you do not approve, or have any questions regarding this request, please plan to attend the public hearings on the above scheduled dates. Thank you for your immediate attention to this request. RC:sr Enclosures 201 BOLIVAR STREET BANGER, TEXAS 762" 940.458-7930 P.O. BOX 1729 940-458.4180 FAX , - t ....., .� . .�..r , y. k • w..��, .�"e'�" ..1.' .;Yr .� "wi- , r'4���.iM..y� � Y: • .-r*-! .a •" }' .'�' PZ 03/ 14/02 CC 03/18/02 REPLAT REQUEST To Consider a Replat of the Sims Addition, Lot 1 R and 211, Block 1, Being 1.00 Acre in the Henry Tierwester Survey, Abstract 1241. Property is located on Fifth Street. If you disapprove of this Replat Request, please be in attendance at the meeting. ° Please check one: I approve of the Replat Request 1 disapprove of the Replat Request Comments: SIGNATURE Please Print Your Name DATE gwxar•.ww.v.a,-...0 ••Y :...... .. _..-. ._e. ,yr�•.r r Diu:✓.. y :•..•..-- .. i:.::�i�Y.FaiH-r"A* C:fltQr3Cd�iw .:e�'.-Y�•rM+:i�.:r +.r,`. ., :e�•`�.. .�..,�"'."` �/�yC�."S'.'."tC:�'`'-.i+'.",:r , K.�lfr. �''!+w�. �.r .w;(��i+. •+sty"�'` r. ,.� '�•` List of Property Owners - Sims Replat Mary Bell Sims P.O. Box 548 Sanger, TX 76266 Kenneth & Nelda Colston 204 Colonial Heights Sanger, TX 76266 Lloyd Gwin 202 Colonial Heights Sanger, TX 76266 Ronnita Jensen 114 Colonial heights Sanger, TX 76266 Steve Hollingsworth 108 Colonial Heights Sanger, TX 76266 First Baptist Church P.O. Box 1700 Sanger, TX 76266 Bradley Jackson 707 S. 5`h Sanger, TX 76266 Dexter Johnson P.O. Box 832 Sanger, TX 76266 Wade Parsons P.O. Box 554 Sanger, TX 76266 r .� .�• "' ''`1.:.: ... .. .. �._� �. r.�.rr.�s�u�. •oz••+ua::'a :aiaeovxsl;y,_-:..w��.,���:,.� i �� - i. iM�.• 1� � A £ •� _t+.�r• j.� ti..i. ��.tCrt'..�. i.«�t . � r - i`•��X'ZLa�fJf`�� /., I �i •• .. .. 'R'�"7'�•�. .. �'t. � ,.n - .+a.Ti+'S+vWra-. 'A�."�"9P�i.�G��ti�'�: r� ��� a 1y vZ (94p�yUodert-�n-e`5 LEGAL NOTICE The City of Sanger's Planning and Zoning Commission will conduct a Public Hearing at 201 Bolivar, in the Council Chambers on Thursday, March 14, 2002 at 7:00 P.M. to Consider a Replat of the Sin:., mot 1R and 2R, Block 1, Being 1.00 Acre in the Henry Tierwester Survey, Abstract 1241. Property is located on Fifth Street. Rosalie Chavez City Secretary LEGAL NOTICE The City of Sanger"s City Council will conduct a Public Hearing at 201 Bolivar in the Council Chambers on Monday, March 18, 2002 at 7:00 P.M. to Consider a Replat of the Sims Addition, Lot 1R and 2R, Block 1, Being 1.00 Acre in the Henry Tierwester Survey, Abstract 1241. Property is located on Fifth Street. Rosalie Chavez City Secretary Run 1 time MEMO March 8, 2002 To: Planning and Zoning Commission Fr: Samantha Renz Re: Sanger Industrial Park, Phase H - Preliminary Plat Attached is the information regarding this request. The City Engineer has indicated that all otems on the Preliminary Plat have been addressed. There are still a few questions on the Utility Plan and Sewer Profile that should be addressed prior to the meeting. r. 1 . . _. 1S.r;•i;:. n .yam.. �.. '7i .^as' MN•.•' M�J(;�Wtt1iC. . .,t�N3. �l MARK T. OWENS, P.E. GENERAL CIVIL CONSULTING ENGINEER March 6, 2002 W. Jack Smith City of Sanger P.O. Box 1729 Sanger, Texas 76266 Re: Sanger Industrial Park Phase II — Preliminary Plat Sanger, Texas 3nd Review Dear Mr. Smith: Per your request I have completed a and review of the Preliminary Plat as prepared and submitted by Surveyors and Engineers of North Texas, Inc. for the project referenced above. My comments are as follows: Sheet 02 of 06 - Preliminary Plat l . The larger sheets do not show sufficient detail as indicated on Sheet 2 2. For Lots 1 and 19 Block B the detail showing the R-O-W is sufficient, however, there should be a 1 S' utility easement and S" electrical easement provided adjacent to the dedicated R O-W. 3. No copy of easement documents were provided as indicated in Item 6 of Greg Edwards letter. Sheet 03 of 06 - Utility Sheet A 1. The plan also shows a proposed 12" waterline along the I-35 Service Road within the utility easement for Lot 2 and Lot I of Block A. The line is actually an existing 8" line within Lot I and proposed 8" within Lot 2. 2. This sheet does not show the detail as indicated on Sheet 2. Lines are not labeled and some are not shown. Sheet 04 of 06 - Utility Sheet B 1. The same note should be used for sewerline abandonment as on Sheet 3. 2. This sheet does not show the detail as indicated on Sheet 2. Lines are not labeled and some are not shown. There is dashed line shown on Lot 9 Block "B" which is not clear as to what it is. 3. A 30' D.E. and 20' U.E. are shown on Lot 14, Block "A". Which one is correct? According to the drawings scale the width is 30 feet 4. The note "Connect to Existing 1 S" Sewerline" points to the wrong place on the drawing. S. There is "Proposed 12" Waterline" note shown pointing to nothing in Lot 2 Block "A". P.O. Box 596 PONDER. TX 76259 PHONE: 940-391.4845 FAX: 940.479-0593 mdintx a ielide.net MARK T. OWENS, P.E. GENERAL CIVIL CONSULTING ENGINEER 6. The proposed 8" sewerline is incorrectly shown entering into the existing manhole between Lots 11 & 12 Block "B". The line should not be curved as shown. Sheet 06 of 06 - Drainage Sheet B 1. No culvert capacity calculations were added to the drawing as indicated in Item 1 of Greg Edwards letter. Sewer Plan 8t Profile Sheet Provided by Isbell Engineering Group, Inc. 1. Drawing should show coordinates on all manholes and bearings & distances for all lines. 2. Need to provide a typical trench section on the drawing. 3. An instrument conveying the utility easement;o City should b; provided in conjunction with the construction drawing(s). It is my recommendation that before any final plats are accepted and reviewed by the City for all interior lots to the subdivision that a CLOMR drainage study be completed by the developer and approved by FEMA re -delineating the floodplain boundary to reflect the proposed channel improvements. In response to Item 1 of Sheet 05 of 06 from my letter dated February 6, 2002, I received a letter from Greg Edwards, P.E. dated January 8, 2002 stating that that the Superwash Building to be located on Lot 19 Block "A" is reasonable safe from flooding and should not be damaged by a 100-year (1 %) frequency storm. The letter as provided by W. Edwards is acceptable to allow development of Lot 19 Block "A" with a finish floor elevation as indicated. I would recommend that when the Final Plat is approved for Lot 19 Block "A" the City Council approve it based on the letter provided by Greg Edwards and state that in motion to approve the plat. If you have any questions or need any further information, please call me at (940) 391-4845. Sincerely; Mark T. Owens, P.E. General Civil Consulting Engineer P.O. Box 596 PONDER. TX 76259 PHONE: 940-391-4845 FAX: 940-479.0593 mdintx a i0ide.net :fin:'.-i::Z>.':.�.i'�-..r.. •:•C:'r�•'.•..:�� �:"�'...::. ..:'i_ .. _ .r _.._.. __.....i.':-,1�.�.�.... ..5:'r....._+�rti .>�fi��.-_ . '.I -t- �8 14t'r�u�N�kitin MARK T. OwENs, P.E. - GENERAL CIVIL CONSULTING ENGINEER - February 6, 2002 Mr. Jack Smith City of Sanger P.O. Box 1729 Sanger, Texas 76266 Re: Sanger Industrial Park Phase II — Preliminary Plat Sanger, Texas 2°d Review Dear Mr. Smith: Per your request I have completed a 2od review of the�Preliminary Plaf as prepared and submitted by Surveyors and Engineers of North Texas, Inc. for the project referenced above. My comments are as follows: Sheet 01 of 06 All comments from previous review have been satisfactorily addressed. Sheet 02 of 06 - Preliminary Plat 1. 5' Electrical easements were shown on the typical lot details in addition to 15' utility easements but are only shown on some lots in the preliminary plat. I will defer to the electrical department for their comments and final approval on this matter. 2. The chord length needs to be shown in the centerline curve data table. 3. For Lots 1 and 19 Block B it appears there is R O-W or easements to be dedicated and there is an existing easement. It is unclear due to the small scale of the drawing as to what is being dedicated and how wide the dedication is. The width of the existing easement is not called out. I would suggest a larger scale drawing for clarity. 4. The utility easement line for Lot 8 Block 8 breaks and needs to be continuous through the lot. 5. At the west end of Industrial Avenue at the intersection with I-35 Service Road it appears the electrical easement line crosses the road. This line needs to be removed within the Road R-O-W. 6. Due to the small scale of the drawing I cannot see the distinguishing line between the 15' utility easement and the variable width electrical easement along the back side of Lots 3- 6 Block A, Lot I Block 1, and Lot I Block A. It appears the width increases as easement moves south. The drawing should be presented at scale where the widths of the easements can be distinguished. 7. Immediately northeast of Lot 1 A Block A the easement line shown ends and should connect to a lot line or to another easement line. P.O. Box 596 PONDER. TX 76259 PHONE: 940-391-4845 FAX: 940.479-0593 mdintsa iglid�.nat MARK T. OWENS, P.E. GENERAL CIVIL CONSULTING ENGINEER 8. There is an existing 8" sewerline that crosses Lot 2 Block A from north to south and connects to an existing line at FM 455. The plat shows a 20' utility easement for the sewerline but the easement ends at the south lot line of Lot 13 Block A. The 20' utility easement should be extended from Lot 13 to the existing easement along FM 455. 9. On Lot 11 Block B there is a dashed line on the west side of the lot which indicates there is some type of easement but there is no call -out as to what type of easement it is. The type and width of the easement should be shown on the drawing. 10. No curve information is shown on the plat and should be shown for the property line curves for Lots 13 and 14 Block A and Lots 4 and 5 Block B. Sheet 03 of 06 - Utility Sheet A 1. Manholes should be shown at all sewerline connections, bends and at the end of lines. 2. The proposed 8" sewerline is shown to connect to an existing 8" sewerline that has been identified in drawing to be abandoned. This needs to be clarified as to whether the connection will be a temporary connection until the remainder of the proposed 8" sewerline is constructed. 3. The limits of the sewerline to be abandoned needs to be shown. 4. The line type used to show the proposed 12" waterline makes it difficult to see and would request that the type of line used be changed for drawing clarity. 5. Along I-35 Service Road the plan shows an existing 6" waterline that transitions into an 8" waterline. I'm not sure if this correct and if it is correct should be verified with the water department. The plan also shows an existing 8" waterline along the I-35 Service Road within the utility easement for Lot 2 Block A. This also needs to be verified with the water department. If it is not an existing line, it should be shown as a proposed line. 6. It is my understanding that Isbell Engineering is working on the actual sewer line design for the sewer located along the back side of Lots 3-6 Block A, Lot 1 Block 1, and Lot I Block A. The construction drawing should have been submitted with this preCnninary plat to verify that all easement acquisitions are consistent between the two (2) engineering firms representing this project. Sheet 04 of 06 - Utility Sheet B 1. The proposed 8" sewerline is shown to connect to an existing 6" sewerline where the previous sheet called it an existing 8' sewerline. 2. The line type used to show the proposed 12" waterline makes it difficult to see and would request that the type of line used be changed for drawing clarity. 3. A note should be placed on the drawing indicating the size of sewer line that the proposed 15" sanitary sewer will be tying into. Sheet 05 of 06 - Drainage Sheet A 1. Per my last review I requested a number of drainage issues be addressed or clarified. In response, I was told that in addition to the drawings submitted with the preliminary plat, a P.O. sox 596 PONDER. TX 76259 PHONE: 9dO-391-4845 FAX: 940-479-0593 mdintsaiglide.net .f. a.• : .. ..... . .. :..w•�:. - 21....... ter..._•.—�.+• MARK T. OwENS, P.E. GENERAL CIVIL CONSULTING ENGINEER drainage report would be submitted as well. An April 29,1998 drainage report was submitted however the report is almost 4 years old and I feel needs to be updated. Specifically the report does not identify all the criteria that was used to establish the 4,200 cfs offshe flows that will be carried in the proposed onsite 130 foot wide drainage channels. The report does not show an evaluation of what happens to the 4,200 cfs of flow when it hits the existing culverts at FM 455. It is my opinion that when this amount of flow hits and crosses FM 445 that backwater could significantly encroach upon Lot 19 Block B even beyond the FEMA Floodplain as shown on the plat. The City currently has a Final Plat application for a car wash to be located on Lot 19 Block B and I would strongly recommend the Final Plat not be considered until a detailed drainage study evaluating what happens at FM 455 has been completed. 2. From the information given it is difficult to evaluate how drainage is dealt with on the site. It would be my suggestion that the drawing show points of concentration for each drainage area and specifically how drainage flows are to be addressed by filture facilities. 3. A 10' x 8' box culvert note is shown but the actual location is not shown. Where the box begins and ends is not shown. Capacity calculations should be shown on the drawings or in an attached report. The 1998 report shows calculation for a 10' x 6' box culvert identified as Culvert "A". Is this culvert supposed to be Culvert "A"? If so, it is not identified as such on the drawings. Sheet 06 of 06 - Drainage Sheet B 1. A twin 8' x 5' box culvert is shown. Capacity calculations should be shown on the drawings or in an attached report. The 1998 report shows calculation for an 8' x 4' box culvert identified as Culvert "B". Is this culvert supposed to be Culvert "B"? If so, it is not identified as such on the drawings. 2. Storm drain inlets are shown at the 90-degree turn in Industrial Avenue with additional inlet to the west along Industrial Avenue. The drawing does not show where the discharge is for the stormdrain connecting all the inlets. A note is shown on the drawing indicating that there is a 48" stormdrain but it is not shown on the drawing. 3. The flow entering the twin 8' x 5' box culvert is shown to be 650 cfs on Sheet 5 and 567 cfs on Sheet 6. 4. All channel easements should include 15' of additional easement on one side of the proposed channel for maintenance access and 5' on the other. A minimum of 1' of freeboard for the 100-yr storm event will be required. Consequently, the drainage easements shown for the channels are insufficient. 5. The channel computation table should include a column identifying the required channel capacity as well as the calculated capacity. In general a more detailed drainage study and utility plans are necessary to complete my review of this preliminary plat. It is my recommendation that before any final plats are accepted and reviewed by the City for all interior lots to the subdivision that a CLOMR drainage study be P.O. Box 596 PONDER. TX 76259 PHONE: 940-391-4845 FAX: 940.479-0593 indinte a iglidemct .. .«. . .. 7rt� .., . ..Y•!�'• T* . ...[.+i.+ Y s. i - ti • �. �.i ��„ Rom.• _ e...�� i' -MARK T: OwENS oxe _ . " '• GENERAL CIVIL CONSULTING ENGINEER completed by the developer and approved by FEMA re -delineating the floodplain boundary to reflect the proposed channel improvements. If you have any questions or need any fin Cher information, please call me at (940) 3914845. Mark T. Owens, P.E. General Civil Consulting Engineer P.O. Box 596 PONDER. TX 762-`9 PHONE: 940-39 : •4845 FAX:940-479-0593 mdinwa iglide.net Surveyors & Engineers of North Texas GREG EDWARDS, P.E. WILLIAM COLEMAN. R.P.L.S. 1621 Amanda Court Ponder, Texas 76259 Ph: (940) 482-2906 FAX: (940) 482-2911 Toll -free: (877) 481-SENT www.senteorp.com Tuesday, January 08, 2002 City of Sanger Attn.: Mark Lewis Dear Mark, l Thanks for meeting with me last week to discuss the Sanger Industrial Park Preliminary Plat. Attached is a revised copy of the Plat which should address most of your comments. Also attached is a copy of the previous preliminary plat and off -site drainage report which were approved and the preliminary culvert computation you requested. The report explains several of the flow numbers you questioned. As we discussed, a letter of map revision as well as Corps of Engineers permits will have to be obtained and a CLMAR will have to be approved by FEMA before construction of the road and drainage improvements can begin. The drainage calculations shown are preliminary and for the purpose of estimating the approximate size of the necessary improvements. Size of proposed improvements may increase or decrease as needed to meet the City of Sanger development standards and locations may be adjusted to account for final design conditions not anticipated in this preliminary design. I hope the attached information addresses all of your concerns. Please call if you have any questions. Yours truly, Greg wards, SPE.