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HomeMy WebLinkAboutSanitary Sewer ReportSewer System Report for Harvey Mitchell Parkway Commercial Addition College Station, Texas June, 2011 41 Schultz Engineering, LLC TBPE Firm No. 12327 P.O. Box 11995 College Station, TX 77842 2730 Longmire Drive, Suite A College Station, Texas 77845 (979) 764 -3900 T� Ai .. ..............i�. . OSEPH P. SCHULTZ F -12327 SCHULTZ ENGINEERING. LLC. General Information Location: The Harvey Mitchell Parkway Commercial Addition is located at the South -east corner of Harvey Mitchell Parkway and Luther Street. General Note: This commercial lot will flow into the proposed 8" sewer line. Thi line will connect to an existing sanitary sewer manhole on the south as ide of the property. Land Use: Commercial Design Criteria Primary Sewer Outfall: An existing 8" sanitary sewer line along the south east side of the property. Domestic Demand: Avg. Pop Density: 30 persons per acre Average Flow: SO gpd /cap Commercial Peaking Factor: 4 Pipe: PVC ASTM D 3034 SDR 26 Applicable Exhibits: Exhibit A — Sanitary Sewer System Layout Exhibit B — Sanitary Sewer Analysis Spreadsheet Conclusion The proposed 8 " line flows into an existing 8 " sewer line on the property. The analysis in Exhibit B checks the calculated slope required to pass the estimated flow against the design slope shown on the plans. The spreadsheet indicates the design slope is greater than the minimum computed slope, so we conclude that the system is more than capable of carrying the anticipated flow from these phases of the subdivision. Exhibit B also shows the full flow velocity in the proposed line to be 3.04 fps and the calculated peak flow velocity to be 1. 42 fps. ` � L I \ \ \ \ \ X 51 L � v v 00 0 0 � f � e / v, / A l x < 1 ow \ a i 1 \ J 1 1 / � 1 Il W H 1 1 z 1 11 1 i 1 r , 1 I i N 1 I I O j m f 1 I ' I I I ' � r I w U i i i / } QZ rnO , f f `r N ' I f ' I Y 1 r � I I ' ' � I Y I 1 I i Y I ! ; , ! I I I I I 1 a I 1 i i i 1Y i I I I ' I f j I I 1 ! 1 L --------------- 1-- i I / C m X W 0 x 4 U J J N 0 111",1 11111111 m :a k W ti � Q R . L v U R 3 L R 4 Z v R Q L d R w C R Y N N R! 's a w a 'o cy w t , to o a U w o 3 !_ > of n 3 nn Cl) w o w (L u of i — 3 C3 u � O �; N w 4%QVj m o� n c $ x a U o � o Q c Y of N C.� � N N [ o o 0 of .� o U u t� 0 N �i � c O �1 G � c I I N o! m 0 i 0l U O , i -t �w C O iC y � I 03 N T — of O a� (� Q W a> C7 Q SVON weallsdn WOIJ M013 dugn%4uoD aPON 01 aPON q W013 M013 (7 u leialawwoz) vl CL V I W� E o w s — �' Sewer System Report for Harvey Mitchell Parkway Commercial Addition College Station, Texas June, 2011 L ultz Engineering, LLC TBPE Firm No. 12327 P.O. Box 11995 College Station, TX 77842 2730 Longmire Drive, Suite A College Station, Texas 77845 (979) 764 -3900 Trot .� ",% % .:i ..................... %:i. OSEPH P. .. SCHULTZ .. ..................... F -12327 SCHULTZ ENGINEERING, LLC. General Information Location General Note Land Use Design Criteria The Harvey Mitchell Parkway Commercial Addition is located at the South -east corner of Harvey Mitchell Parkway and Luther Street. This commercial lot will flow into the proposed 8" sewer line. Thij line will connect to an existing sanitary sewer manhole on the south as ide of the property. Commercial Primary Sewer Outfall: An existing 8" sanitary sewer line along the south east side of the property. Domestic Demand: Avg. Pop Density: 30 persons per acre Average Flow: SO gpd /cap Commercial Peaking Factor: 4 Pipe: PVC ASTM D 3034 SDR 26 Applicable Exhibits: Exhibit A — Sanitary Sewer System Layout Exhibit B — Sanitary Sewer Analysis Spreadsheet Conclusion The proposed 8 " line flows into an existing 8 " sewer line on the property. The analysis in Exhibit B checks the calculated slope required to pass the estimated flow against the design slope shown on the plans. The spreadsheet indicates the design slope is greater than the minimum computed slope, so we conclude that the system is more than capable of carrying the anticipated flow from these phases of the subdivision. Exhibit B also shows the full flow velocity in the proposed line to be 3.04 fps and the calculated peak flow velocity to be 1.42 fps. m � W � 1I bt I it, r � vl C4 r � vl v! w � F w h 4 U J J 1111/110 �'IIIIIIIL! IW W a 0 ^O Q R �u L Y U 3 L a d s u as y .:� 06 �i Q L CQ w 3 a, N 'I w r• o; a au ° ° o LL > v; O n _ � a : f7 .2 LL a w i o; l 3 O d w rn N I 0 y Y 5 d a W � Y I Q i u O a�i 0 o p Li.`��'w of Q r ' M 01 �+ �e y O v y 0. �, t o! o 0 0 U O i o U o H C O iC p � � � V U � ¢ M _O w v a ^ � c7 WON wRoAsdn , WOlg M013 Suilogj.nuoD aPON Ol aPON q wOIA mO13 p le!aiawwoD d U ¢ o C7 L% D Z D �v m m �v D Z 0 r z m m D V) m m z r 0 D 0 Z () L I � o U) O I m r z M 0 O m -o m 0 Dcn m -i m m I � � � m Z CTI N O I > M —Z I O >D � -° . - \mz� C N m O n CY � "I W (p Cc c 0 0� 00, �X I c - i �, I L c� Dz ::�o O z GRAVE I �l N40 44 "E - 1--�)q