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Home My WebLink AboutzS-2962SetBOARD OE COMMISSIONERS Victor �. Carpine President Richard Anderson Vice President Pamela Martin Secretary Thomas Peadon Manager =,01= _I�Ir wevp- �� -jg8p SAINT CLAIRE SEWER EXTENSION VICINITY MAP SHEET INDEX Sheet Cover Sheet 1 of 4 Sewer Pian and Profile 2 of 4 Stagy dard Sewer Details 3 of 4 Standard Sewer Specifications 4 of 4 ��- s,;�s, Engineering Planning Surveying �� ° � �,� �= ��.� Penhallegon Associates Consulting Engineers, Inc. c�` � - s , � 4. a� � �� 750 Sixth Street South Kirkland, WA 98033 www.paceengrs.com ,��` j PH: (425) 827 -2014 1- 800 - 945 -8408 FAX: (425) 827 -5043 x ,,, -.,.:: a �" Kirkland Seattle Federal Way Cle Elum Portland r ® � v = s�v`vi Approved By Coal Creek Utility District Date ''��v� z 02007.00 SHT. 1 cf 4 cam, �_ �q�_�� SCANNED SEP 13 2002 8 � ' PART TWO - MATERTAIS 2 -1 GENERAL Ali materials and equipment shall be new and workmanship and materials shall be good ouaiity. All material incorporated into the work shall eonierm to the provisions of this park Al! references to Specifications shall be of the lato;t edition. 2 -2 MATERIAL LTSYS AND SPECIFICATIONS The Developer or his Contractor shall deliver to the Engineer a material list not le>s :ban fen (30) days before commencement of construction. The list shall contain the manufacturer and model number, if applicable, of Ore material and equipment to be installed as a part of the work so that the Lbgineer may determine whether such materials conform io the Plans and Specifications. No materials that are not sduded in the material list shall be installed as a part of the rank. The manufacturers technical specifications for pipe, appurtenances and equipment to be scorporated into the work shall he submitted iu the Lhgineer ai least ten (10) days prior to commencement of constnrction with the materials Nsted. 2 -3 GUARANTEE BY 11iANUFACTURER D requested by the District or by the 8ngineer, a written guarantee made by the manufacturer of any materials to be incorporated into the work shall be ' fu- shay', guaranteeing to the District chat such materials shall conform to these Specifications and anq specifications otherwkse applying to the work. 2 -4 SEWER PIPE AND APPURTENANCES, NON - PRESSURE Non - pressure sewer pipe shaD be PVC pipe conforming to AS1Td D -3034 for deaths of cover between 5 feet 10 !2 feet; and Ductile Iron pipe, doss 50, cement lines conforming to AWWA Standard C -151 and C -104 for depths pf cover less than 5 feet or exceeding 12 feet and for slopes less than 1% and and over 15 %. All pipe joints shall berubber- gasketed. PVC serer pipe is dapped as ne8ble conduit Joints shall conform to ASTM D-32f2 using a restrained rubber gasket conforming m ASTM F-477. l5ttings shall be sjection molded tees or iaetorg solvent welded saddle tees. Saddle fastened to pipe with external bands are not acceptable on any new system. - Ductile L^on pipe is defined as rigid conduit Mechanical or push -on joints shaD conform to AWWA Standard C -110. 2 -5 SSWII2 PIPE AND APPURTENANCES - PRESSURE Unlea otherwise sperfied, pressure pipe shall be constructed of: (a) Ductile iron pipe conforming m AWWA. C -151 wiWl a manufacturer s the cement lining conforming to AWWA C -104 (except as to thickness) and with the type of jolt, class, thickness, designation and msrl:ags as specified (b) Cast Iran fittings shall be rubber - gasket and shall conform to AWWA C -110 sad C -111. Valves shag conform to AWWA Specifications IC -500. 2 —O MAl \IIGLGJ — �°' ,�1. TAl�LA1�D (a) Manhole Frames and Covers Cast iron troves and covers shaD ccnform to the Ol,�mpic Foundry Company No. MII30A, or equivalent Castings shall conform to the requirements ai ASTM A48, clasp 30 and shag be free of porosity. shrink cavities, cold shuts, or cracks or any surface defec#s which would impair service ability. Repair of defects by welding, or by the use of 'smooth -on' or similar material wBt not be permitted Cover to be non -skid typo surface and shall have the word °SEWER° s Large raised letters. A bituminous coating shall be applied to aB surfaces. The finished coating shall be continuous, smooth, neither brittle when cold nor sticky when exposed to the sun, and shall be strongly adherent to the casting. The District shall have the right to require inspection and approval of all castings prior to painting. Manhole rings and covers shall be machine finished or ground on seating surfaces to assure non - racking fit s any position, and sterchangeabiktp. At the request of the Disi.rici, there shall be made available ai the foundry standard rings and standard covers for use by inspectors s testing fit and seating. Manholes located outside public rights -of -my shall be equipped with a locking device of such design that the cover may be readily released from the ring. All movable parts shall be made of non- corrosve metals otherwise arranged to avoid possible bsding. At the request of the District, there shall be made available at the foandrg a testing device suitable for provsg the capacity of the of the assembly to resist an uplift pressure on the lid equal to a 20 -foot head. The locking frame and cover shall be Metro standard frame and cover with 3- screw -type locking Bds. All manhole {tames and ecvers shall be identified by the name or symbol of the manufacturer. Tuts identification shall be s a plainly visible location when the frames and covers are installed s addition to the manufacturer's identificaton, the material shall be identified by the following "NOD° or °DUC° for nodular or ductile iron respectively. The manufacturer's identification and the material identification shall be adjacent to each other and shaD be minimum 1 /2 -scu letters, recessed to be flush with the adjacent surfaces. (b) Precast Manhole Components Precast manhole componens shall conform iu ASTM C -470 except as modified herein. Base section openings to receive pipe shall be circular, tapered inward, and held to the minimum size practical to accomodate the pipe to be inserted to effectively seal the joint. �, Pipe to manhole connections shall be made with a rubber boot installed -" s a pre -cored opening. a I' a Precast manhole elements shall be provided with steps and /or ladders such that the completed manhole will contain a continuous vertical ladder wkW1 rungs equally spaced at 12 inches apart plus or minus 3/4 inch. The lowest rung shall be not more than I6 inches above the shelf, and the uppermost rung shell be not more than 18 inches below the street surface. Jofnts batmen precast manhole elements shall be rubber gasketed similarly to pipe joints and shell conform to ASTM C -433. Shnp drawings of the joint design shall be submitted to the Engineer for approval, prior to manufacturo. Completed ioknts shall show no visible leakage and shall conform to the dimensional roqufrements of ASTM C -478. Standard flat slab covers for shallow manholes shall be a minfmum of 8 inches thick and shall conform to the outer dimension of the standard sections upon rehfch they are to be placed. The 24 -inch diameter opening shall be eccentrkeally located as shown on the Standard Plans to provide al least 6 inches mfnfmum radial distance Iron the edge of the 24 -inch opening to the fnside face of the standard sectimr belox. Reinforcing shall be as shown on the Standard Plans. Reduction to 24 fnehes shag be made by means of of a flat slab, for shallow manholes, or an eccentric precast cone for standard manholes. (c) Deformed Bar Steps Galvanized deformed bar steps shall be 1- inch - diameter deformed bar conforming to ASTM A -615, Grade 40 or Grade 60, hot bent and galvanized after bending. For Bending, the temperature shall be at least 1,600 degrees F. Galvanizing shall conform to ASTM A -123. Step dimensions and pattern shall conform to the Standard Plans. Pol}Prapylene coated steps shall conform to ASTM C -478 with deformed bar conforming to ASTM A -615. Steps shall be Lane model P -14938 or approved equal. (d) Ladders Precast manhole base sections more than three feet in height shall be provided wish a ladder as detailed on the Standard Plans. Ladders shall be galvanized steel or polypropylene coated. 2 -7 IMPORTED BACKFILL MATERIAL Imported beckfill material shall be free from wood, bark, roots or other extraneous material and shall meet the following requirements: U.S. Standard % Passing Sieve Size Wei ht 2 -1f2" Square Opening 100 1/4' Sieve 25 Min. No. 200 10 Max. Sand Equivalent 35 Min. PEA GRAVEL WILL NOT BE ALLOWED AS BACKFILL MATERW. 2 -B TRENCH FOUNDATION MATERIAL Unsuitable foundation material shall be averexeavated and replaced rift bedd'mg material Over - excavated material shall be replaced with trench foundation material conforming to one of the following gradations as specified: U.S. Standard Class "A° Class °B" Sieve Size Min. Max. tRn. Max. 2 -1/2" square opening 98% 100% 95% 100% 2' squaze opening 92 100 75 100 1 -1/2" square opening 72 87 30 60 1 -1/4" square opening 58 75 3/4° square opening 27 47 0 15 0 1 3 /B" square opening 3 14 0 0 No. 4 sieve 0 1 0 0 2 -9 BEDDING MATERIAL All xpa, tees and mmds d std` sewer stabs shaD be pbrgg� xnh flerible Bedding material shall be well- graded, clean, granular material, commonly know as pee gravel or sand and shall meet the following requirements: U.S. Standard %Passing - Sieve Size By Weight Pea Gravel: flen"61e- jointed lateral connerton or eafensian. No donbie plugs shaIl be 3/8° square opening 100 jf8 sieve 0 -5 Sand: instaIled shaIl fie tested xith low pressure aft. Air shaIl fie slowly supplied 3/0' square opening !00 1/4" square opening 90 -100 q10 sieve 40 -75 jj40 sieve 15 -40 $2D0 Sieve 0 -15 2 -10 ASPHALTIC CONCRETE The pipe shaIl be acceptable if the time required in seconds for the pressure Asphalt concrete pavement shall conform to the technical requirements for Class B Asphalt in the latest edition of the State of Washington Standard Specifications for Road, Bridge and Municipal Construction. 2 -11 TOP COURSE AND EEYSTONE MATERIAL For use in the restoration of excavated areas, Top Course and Keystone material shall be manufactured from lenge or talus rock, be free from wood, roots, hark and other extraneous material and shall conform to the following requirements: may contain grease, scluasg but not limited to, scullery sinks, pot and pan U.S. Standard 7, Passing Sieve Size By Weight 5/8" square opening 100 1/4° square opening 55 -75 U.S. No. 40 sieve 8 -24 U.S. No. 200 sieve 10 Max. Sand Equivalent 40 Min 2 -12 BASE COURSE MATERTAL Base course material shall conform to the following requirements: U.S. Standard %Passing Sieve Size B ei ht 1 -1�2" square opening 100 5/8 square opening 50 -80 1/4" square opening 30 -50 U.S. No. 40 sieve 3 -18 U.S. No. 200 sieve 7.5 Max. Send Equivalent 40 Nin. 2 -13 CONCRETE BEDDING AND BLOCEING Bedding and blocking concrete shall be Portland cement concrete containing four sacks of cement per cubic yard end maximum aggregate size o[ 1 -I/2 inches. Maximum slump shall be 3 -I/2 inches. PART THREE - CONSTRUCTION. 3 -1 GENERAL Except as otherwise noted hares, all work shall be accomplished as recommended in the latest revision of AWNA and APWA Specifications and according to the recommendations of the manufacturer of the material and equipment concerned. All specified depths shall be compacted depths. In roadmy areas, all asphalt and concrete pavement shell be saw cut. When trenching operations cut through concrete pavement, the pavement shall be removed to a width of 18 inches greeter than the top reidth of the trench. The concrete shall be saw cut on a straight line and shall be beveled so that the cut will be approximately 1 inch wider at the top than at the bottom. Asphalt paving shall be saw cut ahead of the beckhoe to prevent excessive tearing up of the surfacing and. to eliminate ragged edges. 3 -2 TRENCH EXCAVATION Trenches shall be excavated to the line and grade designated by the District. Unless otherwise specified, trench sides shall be excavated vertically. Trench widths shall be adequate for proper working space and placement of bedding material under and around the pipe. The trench width, from the bottom of the trench to 4" above the crown of the pipe, shall not exceed 40 aches for 15 -, inch diameter and smaller pipe, or 1.5 times the inside diameter of 18 -inch or larger pipe, plus 18 inches. If these widths are exceeded, a stronger grade of pipe and /or a higher classificatiop and amount of beddng material shall be furnished, as directed by the District. Excavation for manholes or other structures shall be sufficient to provide a minimum of 18 inches between l6e structure and the sides of the excavation, enough to allow for proper compaction of the surrounding backfffi. All material excavated from trenches and piled next to the trench, shall be placed and maintained so that the top of the material is at least 2 feet how the edge of the trench. Excavated material shall be located so that tree access is provided to all fire hydrants, water valves, meters and other utilities, and clearance shall be left to enable free flow of storm water s all gutters, conduits and natural inter courses. 3 -3 TIMBERING AND SHEETING The developer shall provide and install timbering and sheetag as necessary to protect workers, the work, existing buildings, utilities and other properties, and shall meet all OSHA and W[SHA requirements. 3 -4 JACKED OR BORED CROSSING All work shall be done s conformance with the requirements of the agency in control of the facility being bored or jacked. See Roadway and Railway Crossings for further details. S -5 ROADWAY AND RAILWAY CROSSINGS Any method may be used for roadway or raUway crossings that provides for satisfactory results and is acceptable to both the District and the governmental or private agency Laving control of the road or track, provided that the road or track shall be res ±need to its original condition after the crossing is completed. if tunneling or jacking is elected or required for crossings, steel, cast iron or concrete pipe casing shall be placed and the sewer pipe laid within the casing. For District Standards far boring or tunneling see °Water or Sewer Casing Detail" on separate sheet. 3 -8 TRENCH FOUNDATION if, in the judgement of the District, the native trench bottoms will provide a firm base for the subsequent placement of bedding, pipe and backfiN, such native trench bottom may be used if the bottom is leveled and smoothed so that the entire length of pipe will rest on swell- compacted base. Trench bottoms shall be over - excavated as necessary to remove all unstable soil and eliminate "boiling' or "quick" conditions to such a depth as to provide a firm base. Over - excavated materials shall be replaced with trench foundation material as specified in Section 2 -8. Foundation material shall be placed when ordered by the District. 3 -7 BEDDING MATERIAL PLACEMENT All flexible pi a shall be placed in bedding material of the type specified s Section 2 -9 �a). The bedding shall be placed from a minimum of 4 inches below the pipe barren to 4 inches above the pipe as shown on the Standard Detail herein. Bedding material shall be worked by hand under, around and over the pipe to rue depths required for the full width of rue trench. AH rigid pipe shall be placed in bedding material of the type specified s Section 2 -9 (a) or (b). The bedding shall be placed r-nm a minimum of 4 inches below the pipe barrel to the spring line of the pipe as shown on the Standard Detail. Bedding shall be placed in more than one lift. The first lift, Lo provide at least 4 -inch thickness under any portion of the pipe, shall be placed before the pipe is installed and shall be spread smoothly so teat the pipe is uniformly supported along the barrel. Subsequent lifts of not more than 6 -inch thickness shall be placed as shown on the Standard Detail and individually compacted to a minimum of 90 percent of maximum density. Shoring to be removed, or moveable trench shields or boxes, shall be located el least 2 -1/2 pipe diameters away from flexible pipe if the bottom of the shoring, shield or box extends below the top of the pipe, unless a satisfactory means of reconsolidating the bedding or side support material disturbed by shoring removal can be demonstrated. In solid rock excavation, aD ledge rock, boulders or stones shall be removed to provide a minimum clearance of 8 sches under the pipe. Ali material thus removed shall be replaced with bedding material. 3 -B GRADE LINES The Contractor shall maintain the correct grades batmen manholes and shell cheek all intermediate grade stakes by means of a taut grade wire betxeen at least three intermediate grade stakes. in the event that tl:e grade stakes do not line up, the xork shall be slopped until the situation fs corrected. Ail bench marks, reference posts and stakes shah be preserved. in case of destruction of any of them, the resulting expense of restoration shag be borne by the Developer. Construction staking shaD consist of grade stakes at 10 foot offsets. Stakes at each manhole and intermediate grade stakes sheD be offset 10 feet and located at 50 foot stations batmen manholes. Laser beam equipment for grade and alignment control is an acceptable alternative. 3 -9 PIPELAYING Each pipe shell be laid xith bells upgrade end the invert of We pipe to the alignment and grade shorn on the Plans. Concentric joints shall be closed end a smooth sverl provided. Open ends of pipes or,fitWgs shell be temporarily blocked or covered when laying is not in progress. Adjustment to the line and grade shall be done by scraping any or tilling end tamping bedding material under the body o[ the pipe. No xedging or blocking of the pipe (or adjustment to line and grade may be done. The pipe shall be loxered into the trench by means of ropes, tripod, crane or any other suitable means, shall not be dropped or handled roughly, and shall be checked for cracks and ddects before installation. Any cracked or detective pipe shall not be installed. Tees, ayes and standing services shaft be instaNed as shown s the Standard Details herein and at such locations as shown on the Plans, or as otherwise directed by the District They shall not be covered vntfl the District has completed inspection sad recorded their eaact location. Variance from established line and grade shall not be greater than 1 %32nd of an inch per inch of pipe diameter, but shall not exceed 1/2 inch or result in a level or reverse sloping tweet 3 -10 PIPE JOINTS No joints shaD be covered untH examined and approved by the District Only pipelapers experienced xith the type of gasket being used s the xork shaD be alloxed to lay pipe. Oo the request of the District proof of such experience shag be funished before laying may begin. Joint material shall be installed according to the manufacturer s recommendations. After the gasket has been affixed, the pipe shall be handled to avoid bumping the gasket. knocl®g opt of position or loading it xith dirt or other foreign material Any gasket so disturbed shall be removed, replaced, deaned and relubricated before the joint is made. The pipe shag be properly aligned before the jolt is forced home. During insertion of the lounge or spigot. the pipe shah be partially supported by hand, sling or crane as required to minim v� lateral pressure on the gasket and to mortar concentricity until the gasket is properly positioned Pipe deflection and strsightening shall be avoided once the joint is home, to prevent creep of the joint SufSeient pressure shah be applied s making the jolt to assure that the joint is home, as defined in the pipe manufacturer's standazd instructions for installation. Sufficient restraint shall be applied to the ]se to assure the joints, once home, aze hdd so by tamping fDl under and alongside the pipe or other appropriate means. At the end of the days work, the last pipe laid shall be blocked in such a manner as may be required to prevent creep during downtime. 3 -il MANHOLES Precast manhole base sections shall be placed on swell- compacted beddng course of beddng material The depth of the beddng shall not be less than 4 inches thick, extending a minimum of 12 inches beyond the outside perimeter of the base section. The balance of app remaining excavated area shall be filled with imparted backfill material and well tamped to the level of the top of the bedding before Ore manhole is set in place. The bedding shall be well tamped and made smooWr and level to assure uniform contact support to the precast elements. All lift holes and the aside and outside face of rubber gasketed jolts between precast sections shall be thoroughly�mtted, pointed, then filled xith mortar, and smoothed both inside and oak Precast sections shall be placed and aligned to provide vertical sides and vertical alignment of ladder rungs. The completed manhole shall be rigid, true to dimension and mtertdght Manholes set s paved streets or other paved areas shall be set to the finished grade of the paving. When required, the manhole frame shall be trlted to conform to the grade of the paved surface. M�..n)>Ales n.�+t sat in r v°� ar=.w. shall be set at a finished grade slightly higher than that of the surrounding terrain to prevent surface water infiltration sin the system. Manholes set s unpaved areas shall have an asphalt pad, 2' thick and 6' in diameter placed azound Ore manhole casting- Manholes at the end of a lse with no inflow, shall have sloped floors to drain to the outflow. H there is inflow, a channel shall be provided Unless needed to clear a paved road, stub - outs and channels intended to faciliate future hookup shall be omitted. Manhole channels shall be made to conform m the sewer grade and shall be brought together with well - rounded junctions. Channel sides shall be carried vertically to the crown elevation pf the various pipes. The concrete shelf _ shall be smoothly finished with slopes to drain Channels shall not narrow down to less than the inside diameter of the pipe. All pipe openings, when practical, shall be cored before settsg the manhole. Pipe connections shall be mada by use of a rubber boat connector, Kor -N- Seal or equal 3 -12 BACRFHd.ING No barJdilling shah be performed untH after the District has inspected the installation of the pipe and bedding and approved backfiiling. The isfiai beckfill shall be hand pieced select material spread evenly over the bedding material and rnmpacted by hand to an elevation of 6 inches above the croon o[ the Pice for Ductile Iron Pine and 10 inches above the crown of the Pice for PVC. This shall be done in such a manner that subsequent becfilDng wiD not disturb the pipe in any way. Subsequent Iffts of not more than 2 -toot thickness shall be placed as shown on the Standazd Detafls and individually compacted m a minimum of 90 percent maximum density. Subsequent back511iog shag be performed by pushing material from the end of the trench along and dnecOy over the pipe so that the material wiQ be applied in a rolling slope, rather than by side filling. Bacldilling from ibe sides of the french wnl not be done until the District has determsed that material has been caretuflp placed war the pipe to a suffdent depth. in areas such as existing paving, or in areas to be paved, where the District determines that minor settlement xould be detrimental and the ¢alive excavated material is not suitable for compaction as backfill, the trench shall be backfilled rdth imported 6ackflB material as specified in Section 2 -7. 3 -13 COMPACTION OF BACKFILL Compaction o[ bacl� and backfill procedures in public rights -of -way sha4 at the minimum, conform to the requirements of the governmental agency having jurisdiction thereoL Bac'.dnline shall be compacted to 95 uereent_of maamum- theoretical density and to 9D percent of maxim® theoretical density in aB pthaz azeas. Yeasorement of rnmpactfon density shell be by the modLeed AASHTO method. Compaction of backSB shalt be achieved by power operated tampers, roller nbration equipment or older meehaniml means. (later settling will not be acceptable as a mmms of compaction H excavated materiel has a California Bearing Ratio for compacted and soaked sample of less than 7, or for any other reason cannot be compacted as specified, such excavated material shall be replaced with imported backSB material No backfill shall be placed without immediate compaction arxord'mg m these specfcatons. The District will regoQe that the services of an independent testing laboratory or colmty testing laboratory be empbryed to perform in -place density tests to ascertain xhethaz the specified density can be or has been obtain. 'Phe costs of these tests sbaIl be borne by the Developer Regardless of the approval of the District as to the manner of compaction or testing, Ore Developer shag reps¢ any settement of trenches and excavations that may oxur withs tin years after completion and format acceptance of the work by We District 3 -14 CLEANING AND FLASHING Prior to Pipe testing, all Pipes shag be deaned as provided in this section. An inflatable baR of a size that wtH Mate to frt snugly into the pipe shaIl be furnished by the Contractpr and placed in the last manhole on the pipe to be deaned 'Phe ball may be used rith a tag Brie ur a rope may be fastened to the ball to locate and control its position at aII times later shall be nttodaced behind the ball and the ball shag pass through the pipe with only the force of the inter impe0ing it AH debris fhished ahead of the ball shall be removed at the fast manhole where presence of the debris is noted s the event that cemented or xedged debris ur damaged pipe sbaR stop the ball, the obstruction shall be removed 1-16 TESTING OF PRESSURE SEDER P]PE All force mains shall be tested et a msim� pressure of at least 50 percent above Ore design opem{mg pressure for at least 311 wearer Leakage shall not exceed the amommt given 6p the folloring formula: �- L= ND� 1850 Where: L = aHorable ka +tape iD gaDons per boor N = tke mm�ber � Pipe joists D =the pipe diameter in inches P =the test pressure m psi t -17 B -INCH SIDE SEWER FROM MADN TO PROPERTY LiNE The material and strength dose of stile sewer pipe shag be the same as the sewer pipe fo which it commects a� these specifications shag be applicable to side scorer work The slope of side sewers shay' not exceed 2 -foot vertical to I -foot horizontal sad grade shaO rpt be Less than 2 percent Side screens shall have mi ®ran 48" cover. llt� ehavge in slope exceeds 2 mchea per foot, standard wye bends shag be aced All side sewers shall be phrgged and the plugs blocked The ends of all side sewers at the property fines shag be marked xiOt a 2" x 4" board. the txttom of rbfch shaft be located of the inert of the end of fire side saner and the tap of which shaft be painted green and extended 4 feet above the pro ®d with the length of the board a� kobeled Sb11ER" in 2" high whffe steneDed letter` 9Tre entrte of the board sbaIl be wrapped with a heavy gauge wire which is aOaehed fo the spigot end of the pipe. i -18 CONNECTION TO THE E%fSTBYG SYSTEM No connections shaft be made to the exstng serer system witbwt the presence of the District Written appHcafioa for rarnneetfon shag be made to the District for connection, and the correction shall. be made of a trme agreed upon with Ore District. Connections to casting manholes shag be made as folbrs: N Ore manhole is °live; manhole ebannd shaD be tightly covered, Pray to brea�g into Ore manhole wall, fo prevent debris from eniersg Ore serer line_ Immediately after the comtecton is made, Ore new pipe shall fie phrgged. the phrg shag not be removed wiihord person of the District H Ore erisWvg mannhole is not °five, "aping shaII be iaataRed in the domstream or discharge pipe of Ore esisiing manhole is addrtan to the above. Connections of oar moms to esistng serer Tmeg shall be made as foDms A near manhole shag be placed over the existing T� life manhole sbaB be precast 54 -inch diameter except Wet Ore base stab shall be cast in place the per connection shall be plugged end 6lpeked mmd the existng sewer pipe shaD not be opened without the permission of fire District Connections of side sewers to an e%istsg saver tine shag be made as foDuws, or as d'n�ected by the District ]fpgineer. A) For ducine von pipe, the conn�on shalt be made with a stainless steel, or stainless steel xiOr dnosle iron liana .tapping tae, Romae '. modd "S5T" or equal AFL by MJ adapter is req�ed. ',.. B) For PVC or AC pipe, Ore conneetiore shag 5e made wish a serer saddle. Romac style LB" or egaaL The emstsg sewer pipe shag be cnE or dented fo give a smooth symmetrical ',. oPeninA of the Proper sine_ Eaeh rnnmNri�.. s.rH be bedded wish a 4-- ,.,��. '�. 3 -15 TESTING OF NON- PRffiSIIRS SEVER P]Q'8 - DEFLECTION Unsuitable foundation material shall be averexeavated and replaced rift bedd'mg material TESTING FOR Ff S%IDLE SEWER PD?E All non - pressure sewer pipe shall be air tested 'the procedures set forth in 3-19 TRAFFIC CONTROL this section �aH be empforu m couaucaug tin tcc, -uog. AH :amlifiet aria SLANT q.A� o200�.00 personnel for conducting We testing ender the obseructon of the District shall AD traffic control shall be par Ore Manual of Uniform Tiatfie Control Devices, be furnished by the Developer. All equfpment aria personnel to conduct the and /or agency of jurisdicfioa During construction, tra€fie shall raft be delayed �..,, test shall be sub'ect to tbe approval of the District Atthongh air testing may far more than 5 minutes unless previously approved by Ore Distrct and the �,,. be performed for the convenience of Wee Contractor before bacldlDng, no agency of jurisdiction Pipe shaD fie accepted mtr1 air tests have 6emm performed after backfflUng and compacting. �, 3 -20 T.V. INSPECTION All xpa, tees and mmds d std` sewer stabs shaD be pbrgg� xnh flerible Prior to acceptance, aIl pipe shaD be flushed ai Ora coa�adors expense amt T.V. inspected by the District at contraemr.: exflen�. Coniract� shall notifg joint caps, or an alternate acceptable to the Distric; and sermrely fastened to the District 48 hours pier io the need for noshing amt T.F inspectina AH xithstand the internal felt pressure. Such plugs or caps shall be readily manholes must be channeled, the serer system completed and the rvadmy removable and the¢ removal shaD provide a socket suitable for making a subbase insta8ed before the T.V. inspection. Sewer dye, Norfab or approved flen"61e- jointed lateral connerton or eafensian. No donbie plugs shaIl be equal shall be introduced into the system prior to Ore T_V- inspection, fl required. used The T.V. camera must be puDed through the pipe xithout use of a hydranHc Immediately fotloxsg the Pipe draai�na and manhole channeling the pipe flushing nozzle. aH5 video tape of this inspection shall be svlmritted to the ',. District along with a completed caztified report by the Contractor. Yrdeo must instaIled shaIl fie tested xith low pressure aft. Air shaIl fie slowly supplied start at the downstream manhole sad proceed upstream against the IIec to the plugged pipe installation nnhl the sternal air pressure reaches 4.0 AD defects revealed by Ure T.V. inspection shall be repaired by Ore Contractor pounds per square inch garter than the average back pressure of app grormd to the District's satisfaction Any pipe or sanitary manhole chanaet with a sag water that may submerge Ore pipe. M least tin mnutes shall be alloxed that creates a standng rater depth of 1/4 -sob. may be rejeet� by the llis€riek ' for temperature stabiUaation before future procedure. A pressure gauge with (No sag of 1/2 -inch or greater wiIl be accepted) Depending on the severity a� a mearmum of 30 psi siudl be used tot testing. extent of the defects, the IBstrlet map require that the eeigt pips run be The pipe shaIl be acceptable if the time required in seconds for the pressure relayed. �,,,. to decrease from 3.5 to 311 psi greater than the average back pressure is equal '. to or Beater than r'•e listed valves far corresponding sizes of pipe shorn on 3-21 SIDE SEWERS Ore air test graph located elsewhere s Part Four. Hazazds created by use of air pressure for testing pipe shall be guarded against, and all plugs shaD be Aside sewer ermit will be re uuad from the District before installatan of P 4 securely blocked to prevent blomuts. A supply air regulator shall be side sewers. Commercial waste dischazge from fixtures and equipment that instated nn the air s<rpply to the s..o..r that wilt allow only a marimum may contain grease, scluasg but not limited to, scullery sinks, pot and pan of 6 psg s the Ise to be tested and all pressure shaD be relieved from the sinks, dishxashers, soup kettles, and floor drains located s areas where sewer 1me before removal of test plugs. grease containing materials may exist, will require a pease sterceptur prior to entering the sanitary sewer system. Commercial estabBshmenfs teat may When required by the Engineer, all sanitary sewer constructed of flexible discharge aB rte the sanitazy sexes system wilt require an oil separator prior pipe shall be deflection tested not less than 30 days after the trench baeldill to entering the sewer system. and compaction has been completed The test shall be conducted by puling a so8d posted mandrel with a diameter equal to 95 percent of the pipe 3 -22 STREAMGUARD CATCH BASIN INSERTS diameter through the completed pipeline. Testing shall be conducted on a manhole -to- manhole basis and shag be done after the tae has been All catch basins located along project shall hay= a streamguard sediment catch completely flushed out xfth inter. The Contactor will be required, at his basin insert model 9226 as manufactured by Ultra -rain Girard, model 3003 as expense, to locate and repair any sections faitsg to pass the test and to retest manufactured by Foss Envitonmentat or approved equal installed. Inserts are to the section be cleaned and replaced bg Contractor per manuiactureis recommendations or by District direction. 5- ?96 ?03 vvwP -=7- ��2 r C �, �` >9dz a3 SCANNED SEP 13 2002 PART TWO AND THREE: TECHNICAL SPECIFICATIONS � � � � � � � � � � �' ®� � APPROVED: COAL CREEK 7415 129TH AVE. S.E. � UTILITY DISTRtC� NEWCASTLE, WASHINGTON 98056 TELEPHONE: 235 -9200 SLANT q.A� o200�.00 REVISED PER DISTRICT COMMENTS 6/18/01 DBH REVISED PER DISTRICT COMMENTS 1 21/01 / DBH PRESIDENT BOARD OF COMMISSIONERS DATE SHEET N Q. 3 Oj= 4 REVISED PER DISTRICT COMMENTS 7�21�00 DBH SECRETARY BOARD OF COMMISSIONERS DATE REVISED PER DISTRICT COMMENTS 4 17 98 DBH lET'fE(l No REVISIONS DATE APPROVED COMMISSIONER DATE vvwP -=7- ��2 r C �, �` >9dz a3 SCANNED SEP 13 2002 SYMETMCAL ABOUT rt. OF WATER MAIN j 'pyjm BARE ' 4' Al TAN EARD W ATEf21 C.I. MANHOLE FRAME AND COVER, OLYMPIC FOUNDRY No. MH 30A OR EQUAL, (MINIMUM WEIGHT 400 LBS.) PROVIDE NON -SKID SURFAC, ONE 1° CIA. HOLE AND WORD "SEWER" CAST IN COVER ASPHALT SURFACE IN RIGHT -OF -WAY 18' MAX. AND DRIVEWAYS 4" MIN. 6° 12" MAX. MANHOLE ' ADJUSTING RING GROUND SURFACE IN RIGHT -OF -WAY, DRIVEWAYS, AND ALL OTHER PAVED AREAS. SEE STD. DETAIL NO. 2 FOR MANHOLE RING AND COVER PRECAST CONCRETE ADJUSTMENT RINGS 0" TO 18" OR BLOCKS PRECAST CONE, 24" (CONCENTRIC) CONCENTRIC u. v) o PRECAST BARREL, DIAMOND PLATE INSPECTON COVERS DIAMOND PLATE COVER FLOW DEFFUSER `RR'- gqE rg INSPECTION & __ _ y, SAMPLING TEE ___ _ - 8" MIN. _ -= _ __ - -_ -- - PROVIDE PLUG IN All 12" MAXIMUM? (TYPICAL) .:'- -- -.� STUBS FOR FUTURE ti .. CONNECTIONS ~ �` D•I• PIPE 1 _ �� FLEXIBLE - JOINT - :'� (TYPICAL) 2 MAXIMU (TYPICAL) CONNECTOR SEAL PLAN DETAIL NO. 5 zawmOUPranF SrmEA cntn.DllrRro wurlst®ule caea wsrAU S�Aa AaASrwavDE I g'a' �" ` r-Ir� �z -w srwc� I swarwm.� -� m a talstwc rnsum - �mlxm sroAA¢ �� `��"r 1tl1mw mgrs Si 78° MlN.� -NE S STARD PRE -CAST CONE---/ MANHOLE_ STEPS SEE PRE -CAST BARREL DETAIL NO. 10 . z in DIA. AS SHOWN ON 12" PLANS w TYP. 54" z -INLET OIL RETAINER BAFFLE MANHOLE BASE - BRANCHING SEWERS - PIPE MATERIAL I� E CAST IN PLACE 2 TYPICAL 'r CHANNEL, AND SHELF, SLOPE ... +i,:'::: PIPE INVERT :: as - -¢ N _ -- _: 12" MAX. 12" MAX. NOTES: Table 1 SHELF SURFACE 54" AT APPROX Yz' 4" PER FT 12" PRE -CAST BASE NOTE: 2" MIN. 1. Manholes over 5 feet in depth from rim to invert shall'''- P have an eccentric cone and conform to standard detail no. 2. -_ _ _n; " ?t -rig__ _ I _ I t t f ' D.I. PIPE 1 FLEXIBLE I' L CONIC BTAFFLE SHALL BE HELD IN PLACE BY PRECAST S' x � BAFFLE ANGLE PRECAST �) ATTACHED T VAIRT WALL 4 IF BOLTS ) A A SPACED 1,1 O.C. ANGLE AND FFA iB�RS1SHALL BE STAINLESS STEEL OR GALYAMZED AND ASPHALT LXfATrD. WATER MANN STANDARD PIPE MATERIAL 12 4" MIN. PEA GRAVEL OR SAND " TYPICAL FOR 54 MANHOLE DETAIL NO. 3 SHALLOW MANHOLE 85d (BOTH BAFFLES) \ I /2d — GRIT /SLUDGE Y RETAINER WEIR JOINT ( TYPICAL) OR KOR -N -SEAL 2' MAX 2" MAX. PLAN LAY PIPE THROUGH MANHOLE, THEN BREAK OUT PIPE AND FINISH 2 PRECAST VAULT AND eAFFLE SHALL HAVE KNOCKOUTS AT ALL PIPE OPEtiLGS, IF KNOCKOUTS ARE NOT PRESENT THEN LSE WBEiGS SKULL BE Cal€ -IX IULER. PIPE OPGRIGS SHALL BE 2" LARGER THAN PPE DIA[ETER 3. PEON Pogm BELOW ACCESS OPENINGS TO ALLOW CLEAR ACCESS TD RISER AND VAULT CHAMBER. 4 LOCATE INTERCEPTER WITHIN 20' OF DRIW FOR ACCESS BYMAIIT VEHICLE AWWA (ASTM) STANDARD TYPE OF PIPE PIPE JOINT FITTINGS Ductile Iron C 151 & C104 C 111 C 153 TYPICAL FOR 54" MANHOLE NOTE (OPTIONAL) D.I. PIPE 5. CONNECIMS TO CONCRETE WALLS WITH P.VC. PIPE REQU61€ KOR- *-SEAL CONNECTOR A.C. . .V.C. BRANf ADAPTER SEAS. ALL PIPE CONNECTIONS ivO'i c: NOTES: 1 12 4" CRUSHED GRAVEL- -TV." MINUS OIL SEPARATOR TO BE SIZED TO HAVE A RETENTION TIME OF 45 MINUTES OR TO HAVE A MIN. OF 600 GALLONS OF TREATMENT CAPACITY. _ `_• : -_ i�'_:_';' 6. LIE SMZFD P.4.C. PIPE SHALL BE 1157} THROUGHOUT 7. GRAY -WATER WILY. BLACK -WATER SHALL BE CAMEO, BY S€M?ATE SIDE perpendicular construction, maintain 18" separation or construct waterline passing over sewer line and use water main standards setforth above for the sewer with minimum 18 feet length centered over crossing. 1. Details shown are typical for all manholes unless otherwise noted. 2. A 2 inch thick, 6 foot diameter asphalt pad is to be placed around the rim of manholes in unpaved areas. 3. Manholes with depths of 20 feet and greater need to be 72" diameter with a safety platform. Ask for detail. WEED CONTROL MAT !MINVF RAILROAD BALLAST (2.5 OUNCE NONWOVEN (DEPTH TO BE DETAIL NO. 4 _ _ PRE -CAST BASE 2" MIN_ CAST IN PLACE CHANNEL &SHELF OPTIONAL- CONSTRUCT ELEVATION CHANNEL UTILIZING ELF SEWa 8. CLEAN -OMIT REQUIRED 3' MAIL WNNSiREA* 0R N7ERCE.°f02 9. FILL WTH CLEAN WATER PRIOR TO START UP OF SYSTEM. 10. SIZE WILL BE PER UNIFORMS PLUMBING CODE APPENDIX IL (750 GAL MINL) POLYPROPYLENE - PHILIPS DETERMINED BY FIBERS CORPORATION) ENGINEER) TYPICAL OIL SEPARATOR (600 gal. min.) DETAIL NO. 6 DETAIL NO. 1 DETAIL NO. 2 MANHOLE BASE DETAIL NO. 7 PARALLEL CONSTRUCTION STANDARD MANHOLE DETAIL NO. 15 STRAIGHT THROUGH FLOW TYPICAL VEGETABLE - ANIMAL ACCESS ROAD " FOR PVC PIPE. JOINTS SHALL BE PLACED A MIN. OF 10 FEET FROM THE MANHOLE WALL FAT S GREASE INTERCEPTOR Spacing_ es directed b Engineer �I •I Finished Grade 1 cl ' t STEP I 4'a" RADIUS 122' I 3" s "� ' EXTEND 10' MIN. PAST It IF POSSIBLE 6" CAP SINGLE SERVICE PROPERTY LINE SEE SPECIFICATIONS FOR BACKFlLL IN ROADWAYS AND PAVED AREAS MATCH EX &JOIN OAT 1' 1' ASPHALT SEALER rmlreL TuTaFnlrx tw FLCFMFAIT 1 NATIVE BACKFlLL SOIL- CEMENT MIX _ -_ ::tg77: :-: LOW PRESSURE AIR TESTING OF GRAVITY SEWERS - DROP } LaUPH94sINaL.1QEFrAB.E'm�FaR A.., PSS PRESSURE DROP FROM as Ps m " Ps Pens AlLOIPnCE FOR ffiRZaiTAaE s�E � PPUICABu z Fox ALL PwE LEewns To TIE RIGHT OF THE - : :::::::- =t :______________ ::- ::::::::::: _________ r': :::::::: ... -:: - ::::::: - - .... :� ::::::::::::::....::.:. . . .... . .... .. - "' -' '-- - - - - -- -- - - -' -" - - :: y::: ::::::::::::::__:- ::� �:::::::::::u' -� _ - . ' ::4 :tp : : -- .. -.::: -- --- ... .... i I c Place 3' into undisturbed soil ELEVATION - +�-- VIII ^uljj�Il WHEN LADDER USED WITH REDUCING SLAB 12" 103'0" STD. BASE SECTION LADDER NO. 8 DEFORMED BAR. 12" (SEE SPECIFICATIONS) 30" TYP. PROPERTY ' s' LINE 6" x 6" x 4' WYE 6" CAP 4" CAP DOUBLE SERVICE 4' ACP CL °B' 2 -2" LIFTS MIN. SUBSEQUENT BACKFlLL 6Yz' CRUSHED `� GRAVEL COMPACTED PER STANDARDS OF AGENCY HAVING JURISDICTION SIDE SLOPE AS INITIAL:::::::: REQUIRED BACKFlLL (SPACED AT 36' CENTERS) 6" TYP. - 12' - - - - - GRAVITY OR MIN. - _ - 2 -2312' MIN. PVC - PRESSURE PIPE - DRAIN PIPE 9" SECTION A -A Sol cement blocks placed over and around pipe_ Tamped into place before placing backfdL rat au FOE I�RaDS m THE L�� aF ng aanrx LaE as �aRU ux� mw s READ DIRECTLY FROM THE GRAPH m wRreaao maM »£ ��' _ FDR EACH PIRE SIM t<E,.F.a -a„ stss T,,w RR.VtEa AttD to Ors u• AP_ Tim FOR `eanrdrlR- ra+. .... _ -.- -- - i :::::_ - - - - - -o --"-' :_:::_ p ... '-- -:: 1 - . - - - -:: ------- - ::-- )'= r>::::::::::::: -= °.:::. :::::::::::::::::: _ ....... : _-- :_, --- - - - - -- - - - -- - - - -- -r - - - -- ... ....:.....:.::::::.::::::::::_: - - - -- -- -- - - - -- _:::_:: ------ :_:::::- - Extend to undisturbed surface I - -'{ 2• RAISED CROWN -= c SPRINGLIKE O.D. + 16' MIN._ _„_ O.D. + 24" MAX �'y z' - ....� Usr TO pertsRt cement with 90 percent active salt and water to slit to form a dry mile that will hold its shape when melded bto a bell. Omit soil cement blocks on slopes less than 15 ercent Op P unless otherwise shown an plan. _ ::::::::: _ : _ :::.� . ..... ....... - - - .........::::.:::::::_::: - -- : -- - -_ _ .. :: _ _ .... a ..alss. os .. ........... __ __ __::_:: L n o y 3 ea.-2"x6" o _ To board only to r 2 "x6" Posts P Y cn extend full distance - Min- Length c 4' 6 I Leg C i - I h w., asso �i .� c - PLAN Notes: MANHOLE _ -- 9Vz" FOR PRE -CAST WALL 12" FOR BLOCK OR BRICK MANHOLE STEPS GALVANIZED 2 __- i� = = =- / 70 ��rrr \ \ \�� \ \ \� \ \ \ \ \ \/. \�[ \ \ \J \I � 2 -T rX rFCRMED STEEL t "xl D� 12" BAR. GALVANIZED AFTER 7G" BENDING . a. °� II-- ar.' •e D.P. v I- 12 D.I Fmro a°mt Puckm9 " - - I sue. i -( - - is c°.R o-ro RN a.a coer - `'�'`• , s ___- PLUG - COMMERCIAL & MULTI FAMILY SERVICE T EXCAVATE I. PIPE: 1 L UNSUITABLE MIN SAND OR PEA `-- -- - - - -_J MATERIAL DOWN TO GRAVEL BEDDING FIRM SOIL AND MIN. MOTH REPLACE WI TO SPRINGLIKE OF SS WITH PIPE CLASS °R° BACKFlLL P.V.C. PIPE: MIN. WIDTH: WHEN h IS LESS THAN PEA GRAVEL 1, MIN - T 4 A WIDTH - O.D. + 16 ". C ROVE CROWN OF PIPE WHEN h IS GREATER THAN - 1', MIN. WIDTH - O.D. + 24 ". ' 8" MIN. IF IN SOLID ROCK A NATIVE BACKFlLL - COMPACT[ TO DENSITY OF ADJACENT SOIL 6" 1_ -- PEA GRAVEL BEDDING 2 , TO SPRINGLINE MI IN_ I L12" MIN. -� - - -- - - - - a �::__:::: . :':: ::''.: - -- - -::_:- ::::.............. ........ - :: -_ -- - -__ ': =__ - ..° - - _ - : ..: g . _ ___ -- -: _ -- - S .. - - - - - . -::: - _ - -- - - -- - - --------- :��o�..:� 4 - - - - -- ...- ......... - - - - - ..:gr- . ........ ... .....�.� ... -..... - .......- ... _..__...... - - - _ _ ----- - - - - -- _ _ _ - 3 fT::::: O:i :::0 w:::::: '::::: : ....... ... ............... - - -- -- : -.FEE -- :::�:�::: � ......:: - ::::::::: 1. Timber baffles to be installed where directed by 6" CAP OF PIPE q� the Engineer or District Inspector. NOTE: 6" WYE m 2. Al! backfill shall be seeded. POLYPROPYLENE STEPS MAY BE SUBSTITUTED FOR GALVANIZED. POLYPROPYLENE MANHOLE STEPS 5" SANITARY TEE 30' -60' 5--296204 3: SHALL BE LANE MODEL P -14938 OR APPROVED Z EQUAL. r`' CLASS 4(M) CD q CONCRETE STANDING SERVICE DETAIL NO. 12 DETAIL NO. 13 DETAIL NO. 14 o DETAIL NO. 9 LL HILL HOLDER DETAIL NO. 10 MANHOLE STEP DETAILS DETAIL NO. 11 SIDE SEWER DETAILS TRENCH CROSS SECTION FOR P.V.C. OR D.I. PIPE PIPE ANCHOR LOW PRESSURE AIR TESTING OF GRAVITY SEWERS PART FOUR: TECHNICAL SPECIFICATIONS STANDARD SEWER DETAILS APPROVED: GOAL GREEK 7415 129TH AVE. S.E. �nrLat� UTILITY DISTRICT NEWCASTLE, WASHINGTON 98058 TELEPHONE: 235 -9200 SAINT CLAIRE 0007.00 REVISED PER DISTRICT COMMENTS 6/14/01 DBH REVISED PER DISTRICT COMMENTS 1/3/01 DBH PRESIDENT BOARD OF COMMISSIONERS DATE SHEET NO. 4 OF 4 REVISED PER DISTRICT COMMENTS 8/7/00 DBH SECRETARY BOARD OF COMMISSIONERS DATE REVISED PER DISTRICT COMMENTS 4/17/98 DBH LEITFA No. REVISIONS DATE APPROVED _ COMMISSIONER DATE W VVR - .27 —JAOZ Ra a& P-, L 176 FR' 2 7 co. - -' %tea SCANNED SEP 1 3 2002