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EXHIBIT A <br />1220 <br />EXISTING 8" SANITARY SEWER MAIN TO <br />REMAIN IN SERVICE FOR THE DURATION <br />OF CONSTRUCTION. <br />EXISTING CULVERT PIPE, <br />ELEVATION AND TERMINATION <br />UNKNOWN. <br />APS PWR- 122' -71' <br />GROUND EL= 217.50' <br />END PK & WASHER <br />EXISTING 8' SANITARY SEWER MAIN TO REMAIN IN <br />SERVICE FOR THE DURATION OF CONSTRUCTION, <br />220 <br />225 <br />CH112 <br />JERSEY BARRIER <br />SSMH EIT-52 - , 71 +00 <br />SSMH E17-49 <br />ROAD EDGE MARKER LINE <br />UTILITY BRIDGE, <br />BY OTHERS <br />PROPOSEDTEMPORARY 12' BYPASS <br />PIPINGAUGNMENT (HDPE OR EQUAL) <br />4" G, ,�_� 4" G <br />4 G <br />2" G----12" G- ...... — 12" G. <br />4` G 4' G _ __ 4.. 2 <br />".. ®_ i G0 4' 4.. G <br />12" G 12°° G 12 " Gam– 12" G— 12" <br />2 -INCH WIDE DOUBLE <br />J-HOOK RATCHET TIE <br />DOWNS, SPACED 8 FEET <br />MAXIMUM ON CENTER, <br />EQUAL TO SMARTSTRAPS <br />WITH MINIMUM 1,500 LB <br />WORKING LOAD <br />PROPOSED TEMPORARY <br />12° HDPE, SDR 17 <br />SEWER MAIN BYPASS <br />UTILITY BRIDGE, <br />BY OTHERS <br />NOTE: REFERENCE GENERAL NOTE 12 <br />ON DRAWING C01 FOR ESTIMATED <br />WASTEWATER FLOWRATES. <br />GAS MAIN SUPPORT, <br />BY OTHERS <br />4'PSE GAS MAIN <br />220 • <br />• <br />NOTE: CONTRACTOR TO COORDINATE <br />INSTALLATION OF SEWER MAIN BYPASS <br />PIPE AND RATCHET TIE DOWNS WITH <br />PSE'S CONTRACTOR. <br />GAS MAIN SUPPORT, <br />BY OTHERS <br />12' PSE GAS MAIN <br />SECTION A -A <br />PROPOSED BYPASS PIPING <br />1' $ 2' <br />PROPOSED BYPASS PIPING PLAN - S ER WORK AREA NO. 3 <br />1' =10' <br />SUGGESTED SEQUENCE OF CONSTRUCTION FOR GILLIAM CREEK BYPASS <br />1. PSE TO ASSEMBLE UTILITY BRIDGE AND SUPPORTS FOR 4° AND 12' GAS MAIN. <br />2. ASSEMBLE 12' HDPE GRAVITY BYPASS PIPING AND FITTINGS. <br />3. CORE -DRILL EXISTING SSMH E17'49 AND SSMH E17-52 FOR GRAVITY BYPASS PIPING. <br />4. PLACE 12' HDPE GRAVITY BYPASS PIPING IN POSITION AND HANG FROM UTILITY BRIDGE USING RATCHET TIE DOWNS. <br />5. GROUT 12" HDPE GRAVITY BYPASS PIPING INTO CORE -DRILLED PENETRATIONS IN SSMH E17-49 AND SSMH E17 -52 <br />6. ADJUST GRAVITY BYPASS PIPING TO GRADE PER SPECIFICATIONS. <br />7. ACTIVATE GRAVITY BYPASS BY CAPPING EXISTING MANHOLE PENETRATIONS AND REMOVING EXISTING SANITARY SEWER PIPE, <br />8. UPON COMPLETION OF CULVERT REPLACEMENT, LEAVE GRAVITY BYPASS PIPING AND EXISTING MANHOLES IN PLACE AND INSTALL NEW SANITARY <br />SEWER PIPE BETWEEN SSMH E17-49 AND SSMH E17-52 PER DWG NO. C05. <br />9. IMPLEMENT TEMPORARY BYPASS PUMPING AROUND SSMH E17 -49 AND SSMH E17 -52. <br />10. REMOVE GRAVITY BYPASS PIPING. <br />11. REPLACE SSMH E17-49 AND SSMH E17 -52 PER DWG NO. C05. <br />EXISTING GROUND <br />SEWER BYPASS RATCHET <br />TIE DOWN, TYP. <br />UTILITY BRIDGE, BY OTHERS <br />MIME= MIENS <br />GAS MAIN SUPPORT, BY <br />OTHERS, TYP. <br />12' SANITARY SEWER <br />BYPASS PIPE <br />12' PSE GAS MAIN — 4' PSE GAS MAIN <br />OUTLINE OF PROPOSED 16' SPAN <br />STRUCTURAL PLATE ARCHES CULVERT <br />EXISTING GILLIAM CREEK CULVERT <br />36' CONCRETE PIPE <br />IE = APPROX. 203.5' <br />SECTION B -B <br />PROPOSED BYPASS PIPING SECTION <br />1'= 10' <br />GAS MAIN POTHOLE DATA <br />STATION <br />DISTANCE FROM <br />CENTERLINE <br />DIAMETER <br />DEPTH TO <br />CROWN FROM <br />SURFACE OF <br />HMA PAVEMENT <br />-68+03 <br />-14'E <br />4' <br />39' <br />69+50 <br />16' E <br />12' <br />55' <br />69 +52 <br />14' E <br />4' <br />39' <br />70+29 <br />13' E <br />12° <br />60' <br />Vicinity Ma <br />SCALE: 1' = 300' <br />/TT <br />SOU" 31= ^=ER WORK <br />4T A 0.3 <br />GOSi S C3NS _ <br />,rI <br />z <br />tl <br />BYPASS PIPING PLAN <br />REVISIONS <br />SAYE DAM Feb 24, 2018 <br />3 <br />SCALE: SHOWN <br />DMWp10 b Fl/LL SGL.E WHEN <br />BM As*SURES2' <br />DWG <br />AO. SHEET <br />ND_ <br />CO2 2 <br />