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HomeMy WebLinkAboutGeneral Provisions SPECIFICATIONS GENERAL PROVISIONS TABLE OF CONTENTS i Page 1. GENERAL INFORMATION ----------------- - GP-1 ; 2 -------------- ----ORDER OF WORK ---- ---------- GP-2 3. MATERIALS ------------------------------------ GP-3 4. COOPERATION ---------------------------------- GP-3 5 . GENERAL GUARANTY ----------------------------- GP-4 6. EXISTING FACILITIES -------------------------- GP-4 j! ^- f C F SPECIFICATIONS GENERAL PROVISIONS r _ 1. GENERAL INFORMATION Location The project is in and adjacent to Truckee, Nevada County, California. The Project is in the Truckee Dormer Public Utility District, within District owned property, easements or Nevada County road right of way. Description of Work The project consists of: Installing approximately 2650 feet of 8" Ductile Iron Pipe along Highway 267 including fire hydrants , valves and appurtenances. r r r r r -. . �t GP-1 /sO it Plans and Specifications ri The work of the project shall. be done in accordance with the u documents entitled "Improvement Plans , Specifications and Contract Documents for Highway 267 Line Replacement, Project 83-2, in accordance with the Truckee- Donner Public Utility District Guidelines and Standards for Water Systems , dated March 1981 and the State of California, Business and Transportation Agency, Department of Transportation Standard Specifications , dated January 1981, and Standard Plans dated January 1981 . In case of conflict between the Standard Specifications and the provisions herein, the provisions herein shall take precedence over a and be used in lieu of such conflicting portions. 2. ORDER OF WORK 1 Attention is directed to Section 5-1.05 of the Standard Specifica- tions and the provisions contained herein. The Contractor will not be required to submit a progress schedule as provided in Section 8-1.04 of the Standard Specifications. The deletion of this requirement shall not be construed to assigned responsibility of performance or contingencies to the Owner or relieve the Contractor of+)iis responsibility to adjust his forces, equipment and work schedules as may be necessary to insure completion of the work within prescribed contract time. Tire is the essence of this contract. The Contractor shall promptlys begin the work required under this contract and shall prosecute it diligently from day to day thereafter at such -a rate that all work shall be completed within the time allowed under the contract. In connection with the work of construction, the .Contractor shall be governed by the direction of the Engineer in respect to the + specific order =of the work of construction, to the intent that all avoidable delays may- be obviated. When, in the judgment of the Engineer, it becomes necessary to accelerate the work, the Contracto!p, when so ordered by the Engineer, shall forthwith accelerate said work and/or shall cease work at any particular point and concentrate his forces at such other point or points as directed by the Engineer and the Contractor sh:i1I execute such portions of his work as may be required to enable hit, elf and/or others to -asten and properly engage in and carry on the work as a whole. �5 a During unfavorable weather and other conditions,- the Contractor shall pursue only such portions of the work as shall not be damaged thereby. No portions of the work, the satisfactory quality of efficiency of which will be affected by any unfavorable conditions, shall be constructed while those conditions remain. Unless by special means or precautions approved by the Engineer the unfavorable ,.., conditions may be overcome. No additional compensation will be allowed for conforming to the above requirements or for delay or inconvenience to the Contractor's operations �by reason of his conformance with such requirements. Any such delay or inconvenience which shall cause the Contractor delay in the completion of the work shall be grounds for extension of time on the part of the Contractor to complete the work. 3. MATERIALS Attention is directed to Section 6 of the Standard Specifications and the provisions contained herein. All materials required to complete the work specified herein shall be furnished by the Contractor. 4. COOPERATION Attention is directed to Sections 7=1.14 "Cooperation", and 8-1.10 "Utility and .Non-Highway Facilities" of the Standard Specifications and to the provisions contained herein. Any act of, . or any omission of anything required to be done by, other agencies , their officers, agents or employees, which shall cause the Contractor delay in the completion of the work shall be grounds for extension of time on the part of the Contractor to complete the work but shall give the Contractor no damages for such delay. Full compensation for conforming with the provisions of this article shall be considered as included in the prices paid for the various co:itract items of work involved and no additional compensation tAll be allowed therefor. GP-3 �b0 MMaM� � 000 m o m o o rah a• o 0 o m � 0H COmC rtH. N £ nrtWKKt'• M G� W M 0 f't O+ rt 14 H a N H t� ►-+ N• n K H x t+• 0 H. P3 (n H. 0 z Wn 0 P;' cn m m a rt x0 0 Na) O H N• a��CnwO ►-' mrtM•0 H CL0 rt m �+ noon rt0ft ►fttoFg�•~ � o r O N O '� m 0) m D)i K rt o rt rt C rt9 9 0rt HMVft � H Kd0 (D N M000 'drt0 H. a m rt a r Md K K m ]' 0 n n m :T H N• N n m 0 0 0 ►�C rn{ rt 0+ m H. £ 00rtnrtrt (rtD K rt rt 0 P. K mNltn cn W x0 :srt rt rrn m 0 0 8WpoKrtM � cnN• n :swm b • abmm mN min oar (D P. n •d 0• M 0• rt N K �C rtn 0 rt ft 0 0 F4£ d B 00• m0• � NK � ►lm co 000 •dam n m K onrt b n • 0 b � (D rt H'd �N n rt ' m 0 cnrt Mm a t'• Wrt d n4 (D a) ommona� rtmrntC p" Ka ioN (CDrOi � 'd NO• on m 00rt0 m0CD ►-� � � t+• £ rtm0NKZ0 It rt (A 0 0 :r rt 0 rt m M rt H. m . � r K W0 rtx x � to 0 m m o o o f✓ rt It m x m V 0 (En 0 m rtKD rt W m N• •d m a• N K m Q0QWp' rt N mftco 008 ►rt� OnOWm O m H. w £ H0 rtrtw 0 n n rt axm cr 0 N 0 f'• W0M 0►� K g 0 N MK 9 NM(mD1C K Wm an m aW 0 W N K ►-� 0 0 � 0 0•�C NWQ' n mrtt0Pt m N (D• fD ki K to N Oo K A�-zl VIII SPECIAL PROVISIONS . 1 . GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SP-1 A. SCOPE OF THE WORK• . . . . . . . . . . . . : : : : : : : : : SP-1 B. DUST CONTROL SP-1 C. MOBILIZATION • . . . . . . . . . . . . . . . . . . . . SP-1 D. EXISTING FACILITIES . . . . . . . . . . . . . . . . . . . . SP-1 E. CLEARING AND GRUBBING SP-3 F. WATERING . . . SP-3 . . . . . . . . . . . . . . . . . . G. STRUCTURE EXCAVATION AND BACKFILL . . . . . . SP-4 H. TRENCHING, SHORING AND BRACING . . . . . . . . . SP-6 I. PROJECT CLEANUP AND FINISHING . . . . . . . . . . SP-7 J. MAINTENANCE OF TRAFFIC . . . . . . . . . . . . . . . . . SP-7 2. MATERIALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SP-9 A. WATER MAINS AND FITTINGS . . . . . . . . . . . . . . . SP-9 B. GATE VALVES AND VALVE BOXES SP-9 C. FIRE HYDRANT ASSEMBLIES . . . . . . . . . . . . . . . . SP-9 D. WATER SERVICES AND METER BOXES. . . . . . . . : . SP-10 E. TYPE II BLOW OFF ASSEMBLY . • SP-10 F. SACRIFICIAL ANODE CATHODIC PROTECTION . . SP-10 G. CONNECTIONS TO EXITING WATER MAINS . . . . SP-11 H. ABANDON EXISTING W 'fER LINES . SP-11 I. THRUST AND ANCHOR BLOCKS AND CONCRETE ENCASEMENT• . . . . . . . . . . . . : : . . SP-11 J. TRENCH RESTORATION . SP-11 3. INSTALLATION AND CONSTRUCTION . . . . . . . . . . . . . SP-12 A. WATER MAIN INSTALLATION SP-12 B. GATE VALVES AND VALVE BOXES. . . . . . . . . . . . . SP-13 C. FIRE HYDRANT ASSEMBLIES .. . . . . . . . . . . . . . . SP-13 D. WATER SERVICES AND METER BOXES . SP-14 E. TYPE II BLOWOFF ASSEMBLY . . . . . . . . . . . . . . . SP-14 F. SACRIFICIAL ANODE CATHODIC PROTECTION . . SP-14 G. CONNECTIONS TO EXISTING WATER MAINS . . . . SP-15 H. ABANDON EXISTING WATER MAINS SP-15 I . THRUST AND ANCHOR BLOCKS AND CONCRETE ENCASEMENT . . . . o . . . SP-15 J. TRENCH RESTORATION . • SP-16 K_ FLUSHING, TESTING AND DISINFECTING . . . . . SP-17 4. MEASUREMENT AND PAYMENT SP-18 SPECIAL PROVISIONS PROJECT 83-2 MM HIGHWAY 267 LINE REPLACEMENT I� 1 . GENERAL A. SCOPE OF THE WORK ' Included in this schedule shall be the furnishing of all labor, materials, tools, equipment and incidentals required to perform clearing and grubbing and the installation of pipe, fittings, valves and appurtenances for the 8" water line between the Truckee Donner Public Utility -Southside Complex Driveway on Highway 267 and the Southwest end of Reynold Way. B. DUST CONTROL This work shall consist of applying either water or dust palliative, or both, for the alleviation or prevention of dust nuisance. Dust control shall conform to the provisions of Section 10 of the Standard Specifications, except as modified herein. Where dust is created, either by vehicles of the Contractor or of others through work being done by the Contractor, such dust shall be controlled by the Contractor through watering or by cleaning up the material causing the dust. Dust control shall be cotrtinued as necessary until the work is accepted by the Owner. C. MOBILIZATION This work shall consist of preparatory work and operations, including, but not limited to, those necessary for the movement of personnel, equipment, supplies, and incidentals to the project site; for the establishment of all offices, buildings and other facilities necessary for work on the project; and for all other work and operations. which must be performed or costs incurred prior to beginning work on the various contract items of the project site. Mobilization shall conform to the provisions of Section 11 of the Standard Specifications. D. EXISTING FACILITIES This work shall consist of the removing, restoration or reconstruction of ex sting facilities such as fences, culverts and structures when required by the plans and ' specifications or ` in the construction and completion of the work. . SP-1 The work performed in ' connection with variogs existing highway facilities shall conform to the provisions of Section 15 of the Standard Specifications, except as modified herein. The Contractor is required to ascertain the location of existing facilities and to carry on his operation so as to cause the minimum possible inconvenience to the public along rights of way and streets. Material shown on the plans or designated in these specifications which is to be salvaged or used in reconstructed work and which has been damaged or destroyed as a result of the Contractor' s operations, shall be repaired or replaced by the Contractor at his expense. Trenches, holes, depressions and pits caused by the removal of existing facilities shall be backfilled with embankment material as provided under "Structural Excavation and Backfill" for the type of trench backfill required in the particular area of construction. Existing facilities which are not being salvaged and which are to be disposed of and not reconstructed shall become the property of the Contractor and he shall dispose of the same outside the limits of the work. The Contractor shall make his own arrangements for disposing of such material and he shall pay all costs involved. The Contractor shall also remove all rocks, debris and all obstructions of whatever kind and ct#aracter, encountered in the construction of the work. The restoration of street, highway and other surfacing which has been removed as a result of construction operations shall conform to the appropriate section herein. Reconstruction or installation of facilities at existing or new locations shall conform to the design of the existing facilities and shall be equal in •all respects to the best portions of the existing facilities. The work or reconstruction shall be performed in accordance with the requirements for new or similar work which apply to the type of facility to-be reconstructed, adjusted, modified, remodeled, relaid or reset. Removing concrete shall conform to the provisions of Section 15 of the Standard Specifications, except as modified herein. All concrete removed —hall be disposed of outside the limits of the project in accordance with the provisions in Section 7 of the Standard Specifications. SP-2 /tea E. CLEARING AND GRUBBING This work shall consist of removing all objectionable material from within the rights of way, construction areas, material sites, and such other areas as may be specified. Clearing and grubbing shall be performed in advance of excavation or grading operations. �,—• Clearing and grubbing shall conform to the provisions of Section 16 of the Standard Specifications, except as modified herein. The Contractor shall review with the Engineer the location and limits of clearing and grubbing prior to the commencing of the work. in general, clearing and grubbing shall be done within permanent easements or rights of way as shown on the plans. Only trees, plants and shrubs that are designated by the Engineer for removal shall be removed. Materials removed shall be disposed of at locations outside the work area and at locations selected by the Contractor, and approved by the Engineer. Burning, if done, shall conform to applicable local regulations. A copy of the Contractor ' s burning permit, as issued by the local fire control agency, shall be provided to the Engineer prior to any intended burning. Trees, plants and shrubs which are not to be cleared shall be protected from injury by the Contractor. Such trees, plants and shrubs which jpre cleared or injured due to the negligence of the Contractor, shall be removed and •-- compensated for by the Contractor at his own expense. - Any and all materials wrongfully removed by the Contractor shall be paid for by the Contractor. The. cost of any such items removed shall be agreed , upon by the item owner and the Contractor; however, agreement .that becomes impossible shall be decisioned by the Engineer and his decision shall be final and said arbitrated amount shall be withheld from the next progress payment due F. WATERING This work shall consist of developing a water supply and furnishing all water required for the work, including water used in the performance of work paid for as extra work, and applying all water. The work performed in connection with developing a water supply and furnishing and . )plying all water required for the work shall conform to the provisions of Section 17 of the Standard Specifications, except as modified herein. SY-3 t G. STRUCTURE EXCAVATION AND BACKFILL: This work shall consist of performing all operations necessary to excavate earth and rock or other material, of whatever nature, including water, regardless of character and subsurface conditions, necessary for the construction of foundations for structures and other facilities; to excavate trenches for pipes and appurtenances; to place backfill for structures, pipe and appurtenances and other facilities; to backfill trenches and depressions resulting from the removal of obstructions; to remove and replace unsuitable material; to construct protection dikes; to remove unstable material and slide material which has come into trenches; all as shown on the Contract Documents. All such work shall be in conformance with the District Standards or as directed by the District Engineer. When a firm foundation is not encountered, due to soft, spongy, or other unsuitable material, such material shall be removed to the limits directed by the District Engineer, and the resulting excavation shall be backfilled with structure backfill material. In connection with earthwork, all tests shall be made in conformance with the following requirements set forth in f� the Standard Specifications: Tests Relative Compaction j� ASTM 1557 Sand Equivalent Calif. Test Method No. 217 Sieve Analysis Calif. Test Method No. 202 Structure backfill shall not be placed until the structure, or other facility has been inspected by the District Engineer and approved for backfilling. The percentage composition by weight as determined by laboratory sieves shall conform to, the following requirements: Class 1 Backfill Sieve Sizes Percentage Passing Sieves No. 4 90 - 100 No. 200 0 - 5 Sand equivalent not less than 20 Class 3 Backfill Material for Class 3 backfill may consist of material from excavation free from rocks or lumps exceeding six inches in SP-4 r l(o� A greatest dimension, vegetable matter, or other unsatisfactory material and shall be compacted to the relative compaction shown on the contract drawings. The trench widths set forth on the plans are minimum widths. No caving within the roadway will be permitted. Where excavation greater than the specified widths is necessary for excavation of the work, machine or band excavation to a stabilized slope will be permitted provided one-way traffic can be maintained. Minimum trench widths is the distance face-to-face of trench walls or inside face to inside face of sheeting should solid sheeting be used. Maximum trench widths from the bottom of the trench to the top of the pipe shall be limited to six inches outside the specified ' minimum trench width, except with specific approval by the District Engineer. Bell holes shall be excavated in the sides and bottom of the trench at pipe joints and shall be of such size that the process of making joints and the inspection of joints can be done satisfactorily. The Contractor shall furnish materials and facilities required and shall make trenches and excavation dry throughout all construction operations. At the end of each working day, there shall be less than 300 feet (of open trench in unimproved areas) or 100 feet ( in traffic areas) , for. each excavation operation, unless otherwise permitted by tqS District Engineer. The Contractor shall locate and expose the existing waterlines at the ' locations designated on the plans for connection thereto with the proposed waterline before making connection. The Contractor shall be prepared to adjust the grade and alignment of the proposed waterline at these points a's required to make proper connections. The location of underground utilities or other obstructions shall be determined by the Contractor sufficiently in advance of excavation so that pipe • alignment can be confirmed or rerouted without delay. Materials excavated- from trenches shall be placed and maintained so as to offer minimum obstruction to traffic. Gutters shall be kept clear for the purpose of handling road drainage. Drainage ways, walkways, driveways shall be kept clear. Excess materials rem fining after backfilling operations shall become the property of the Contractor and shall be disposed of at the Contractor ' s expense. __ .Material -or Class 1 structure backfill shall be placed in uniform horizontal layers not exceeding 0.67 foot in .. SP-S thickness before compaction, and shall be brought up uniformly on all sides of the trench, structure or facility. If the contractor can satisfactorily demonstrate to the District Engineer an alternative method of placing the backfill so that all requirements, other than the layer thickness, are met, the District Engineer will permit the Contractor to use the alternative method unless District Engineer ' s approval is obtained in writing . Material for Class 3 structure backfill shall be placed in layers not to exceed 0 .67 foot in thickness before compaction. Each layer of backfill shall be compacted to a relative compaction indicated for the backfill involved. Compaction of Class 3 backfill by ponding and jetting outside County Road right of way will be permitted when the backfill material, as determined by the District Engineer, is of such character that it will be self-draining when compacted and that foundation materials will not soften or be otherwise damaged by the applied water and no damage from hydrostatic pressure will result. when ponding and jetting is permitted, material for use as Class 3 backfill shall be placed and compacted in layers not exceeding four feet in thickness. The work shall be performed in such a manner that water will not be impounded. Ponding and jetting 4 methods shall be supplemented by the use of vibratory or other compaction equipment when necessary to obtain required compaction. water used for ponding and jetting shall be furnished and applied by the Contractor at his expense. y � H. TRENCHING, SHORING AND BRACING This work shall consist of the furnishing, installing and maintaining adequate sheeting, shoring and bracing as required to insure safe working conditions. Adequate sheeting, shoring and bracing, or equivalent method for the protection of life and limb, shall be performed in accordance with all applicable codes and ' safety orders. The attention of the Contractor is directed to Labor Code Section 6705 . The Contractor shall prior to - excavating any trench or trenches five feet or more in depth submit to the Engineer for acceptance in advance of excavation, a detailed ' plan showing the design of shoring, bracing, sloping or other, provisions to be made for worker protection from the hazard of caving ground durina the excavation of such trench or trenches. If such plans so_ I submitted varies from the shoring system standards, the plans shall be prepared by registered civil or structural engineer prior to submission. SP-6 I ,170 j I . PROJECT CLEANUP AND FINISHING This work shall consist of the cleanup, removal and disposal of construction debris, and the finishing of the entire project upon completion of construction operations. Project cleanup and finishing shall conform to the provisions of Section 22 of the Standard Specifications, except as modified herein. The Contractor shall remove from the vicinity of the completed work all rubbish, unused material, forms, construction stakes, etc. belonging to him or , used under his direction during construction. The work shall be left in a neat and presentable manner at all times insofar as construction conditions permit. As portions of the work is completed, the Contractor shall clean the individual sites. During the progress of the work, the Contractor shall keep the entire job site in a clean and orderly condition. Spillage resulting from hauling operations along or across existing streets or roads shall be removed immediately by the contractor. He shall govern his operations and methods at all times to minimize dust problems within the area of the work or along adjacent properties. Water or dust palliative shall be applied as 'required to provide adequate control of dust to the complete satisfaction of the Engineer. J. MAINTENANCE OF TRAFFI,C� Attention is directed to Section 7 of the Standard r^ Specifications. Throughout the performance of the work, the Contractor shall conduct his operations as to offer the least possible obstruction and inconvenience to the public and to adjoining property owners. Spillage resulting from hauling, berms across driveways -or blockage across any public travelled way resulting from- construction operations shall be removed at . the Contractor' s expense. Flagmen shall be stationed as required when construction conditions warrant traffic safety. The Contractor shall - -construct and adequately maintain suitable and safe crossing over trenches; and such detours as are necessary tb care for public and private traffic. When entering or leaving roadways carrying public traffic, the ' Contractor ' s equipment, whether empty or loaded, shall in , all cases yield to public traffic. The full width of the travelled way shall be open- for use by public traffi(- on Saturdays, Sundays and designate'i legal holidays, after 3 :00 P.M. on Fridays and the da) preceding designated legal holidays, and when construction operations are not actively in progress on working days . SP-7 The pr')V i sions in this section tna�' bk;� raodit Ied or altered if , in the opinion of the Engineer, public tratiic will be better served and work expedited. Said modifications or alterations shall not be adopted until approved in writing by the Engineer. I i y� r • SP-8 /711 2 . MATERIALS _ A. WATER MAINS AND FITTINGS: Pipe for water mains shall be centrifugally cast ductile iron pipe conforming in all respects to AWWA C151, cement lined and seal coated. Ductile iron pipe shall be Class 51 with a minimum wall thickness of 0. 25 inches. All ductile iron pipe and fittings shall be cement mortar lined and seal coated with bituminous material in accordance with AWWA Standard C104 . Standard and short body pressure fittings shall be Class 150, manufactured in accordance with AWWA Standards C110. Fittings shall have the same end configuration as the pipe. Push on joints with rubber ring gaskets, and mechanical joints where specified, shall conform to AWWA Standards C111. All joints shall be factory fitted with a copper bonding strap capable of providing positive electrical conductivity capable of carrying 500 amps for an extended period without overheating. Jumper strips will be of copper and bolts and nuts will be, silicon bronze. Provisions shall be provided for field exothermic welding on cut joints and to fittings. B. GATE VALVES AND VALVE BOXES All gate valves shall V%e iron body, bronze mounted, double disc, parallel seat type with "O" ring gasket, non-rising stem with 2" operating nut, turn counterclockwise to open. Working pressure shall be 150-psi for all valves. All gate valves shall be equipped with ends which will accommodate the type of water pipe being used. On valves 6" and larger the , wedging device shall have unequal angles for seating and releasing the discs and shall -be constructed so that movement of a disc parallel to its seat does not occur during the seating or the release. All gate valves shall conform to AWWA Specification C-500 and shall be designed for 150 psi normal working pressure. Gate valves shall be Mueller, Kennedy or equal. Valve boxes shall be Brooks No. 3-RT, Christy G5 or equal . All valve boxes shall be filled with sacked vermiculite insulation. C. FIRE HYDRANT ASSEMBLIES Fire hydrant shall be Dresser 500T or equal , with two 2-1/2" and one 4-1/2" N.'S.T. outlets . The hydrant shall conform to AWWA Specification C-502, 150 psi minimum working pressure. SP-9 / �Cc Pipe, fittings, valve and valve box shall conform to the applicable provisions herein. Hydrant paint shall be red alkyd, AWWA D102 . D. WATER SERVICES AND METER BOXES Pipe for service lines shall be hot dipped zinc-coated (galvanized) steel pipe conforming to ASTM A-120. All threads shall be standard iron pipe thread (IPT) . Standard weight, threaded Schedule 40 pipe shall be used. Fittings shall be Class 150 of standard form and dimensions, compatible with the service pipe. The fittings shall be galvanized and threaded for I.P.T. A di-electric union shall be provided to facilitate installation. Connection to the main shall lllebe by1 ductile 0508, oriron service saddle, Rockwell 313 , l. All threads shall be standard I.P.T. All connections shall be fitted with a corporation stop. Corporation stop shall be iron pipe thread by compression or copper flared fitting - Ford 500 or equal. Meter boxes shall be concrete, Cristy B-30 , with two, 10 inch B30x10-1354 extensions and B30-61D45 steel checkerplate cover, or approved equal . Meter yoke shall be Ford V72-7 coppersetter with 1" double purpose couplings, padl9jk wings on key valve, test valve at meter outlet and one 7-1/2 inch No. 2 idler, or approved equal. Water meters will be provided by the District. E. TYPE II BLOWOFF ASSEMBLY Connection, corporation stop and connecting piping shall conform to "Water Services and Meter Boxes" above. Gate valve to be Mueller H-10914 bronze gate valve with a brass nipple and a 2-inch I .P.T. x 2-1/2-inch N.S.H.T. brass male adapter on the outlet end. Valve box shall be Brooks 36T or equal with the letters "Drain" on lid. ' F. SACRIFICIAL ANODE CATHODIC PROTECTION Passive cathodic protection devices shall be packaged Magnesium Anodes , Standard 5 pound "Harco Certified" Galvomag Anodes with 10 feet of insulated copper lead wire, AMC05G, or equal . Anode lead wires shall be #12 solid copper wire with Type TW insulatioc,. SP-10 I G. CONNECTIONS TO EXISTING WATER MAINS All materials shall conform to the applicably provisions herein for the individual specific items. H. ABANDON EXISTING WATER LINES All materials shall conform to the applicable provisions herein for the individual specific items. I _ THRUST AND ANCHOR BLOCKS AND CONCRETE ENCASEMENTS : Thrust and anchor blocks shall be Class B concrete as specified in Section 90 of the Standard Specifications. Concrete encasement: Hollow brick masonry shall be 8" x 8" x 16" nominal per UBC Std 24-1, Grade I, cement blocks. Class C concrete as specified in Section 90 of the Standard Specifications shall be used to encase the pipe in accordance with the details on the plans. J. TRENCH RESTORATION Aggregate base shall be Class 2, 3/4 inch maximum grading, as specified in Section 26 of the Standard Specifications. Cinder materials will not be allowed for use as aggregate base. Asphalt concrete shall be Type B, 1/2 inch maximum, medium grading, as specified in Section 39 of the Standard Specifications. Asphlt Binder shall be paving asphalt, Grade AR-8000 , as specified in Section 92 of the Standard Sepcifications. Prime coat shall be liquid asphalt, Grade SC-250, as specified in Section 93 of the Standard Specifications. Paint binder shall be asphaltic emulsion, Type SS1, as specified in Section 94 of the Standard Specifications. SP-11 - 3 . INSTALLATION AND CONSTRUCTION _ A. WATER MAIN INSTALLATION: All pipe shall be installed as shown on the plans, as specified herein, and as directed by the Engineer. All pipe shall be installed in accordance with AWWA Standard C-600 and the pipe manufacturer ' s current installation procedure guidelines. The trench must be dewatered and maintained in a dry condition until the pipe has been installed and all joints completed. In areas where in the opinion of the Engineer the supporting material is unsuitable, such material shall be removed and the void backfilled to the limits designated by the Engineer with an approved backfill material. In the event of excess excavation below the desired trench grade, the trench shall be backfilled to grade with an approved backfill material. All materials placed in areas where unsuitable material has been removed, or overexcavation has occurred, shall be placed in lifts not to exceed 0.671 , and shall be compacted to a relative compaction of 95%. The removal and replacement of unsuitable material will be paid for as extra work . In the event obstructions not shown on the plans are encountered during the progress of the work, the Engineer shall have the only authority to order deviation from the line or grade shown on tine approved plans. Minimum depth of cover shall be 48 inches from finish grade unless otherwise directed by the Engineer. Trenches _ shall be dug to an even grade and the trench sides shall be as nearly vertical as possible for the material being excavated. All roots and other foreign matter not. required to be removed, shall be cut to conform to the trench section and painted with an approved sealing compound. Each length of pipe shall be laid on a firm bed and shall have true bearings for the entire length between bell holes. The manufacturers recommendations for assembling pipe sections and completing joint protection `will be enforced. Inside annular joint will be correctly filled with cement mortar and properly screeded after assembly. Every precaution . shall be taken to prevent foreign material from entering the pipe. Whenever pipe laying is discontinued for short periods or at the end of the work day, the open ends of the pipe shall be closed with a water tight plug or bulkhead. The plug or bulkhead shall not be removed unless the trench is dry. Testing and chlorination shall be in accordance with SP-12' - specifications herein. All pipe, fittings, and other material shall + be lowered into the trench by suitable equipment and in such a manner as to prevent damage. After installation, all ferrous metal items not protected by factory applied protective coatings, or where such coatings have been damaged, shall be adequately painted with a protective paint, Koppers "50" , Scotch Clad 244 , or ' approved equal . Electrical conductivity copper bonding straps shall be provided for all pipe and fitting joints. Prior to testing, all pipe shall be properly backfilled to a minimum depth of 12 inches above the top of the pipe. The Contractor shall at no time connect to new mains except as directed by the Engineer. The Contractor shall give the Engineer and the Truckee Donner Public Utility District no less than two. ( 2 ) working days notice before these operations are proposed to gain permission and allow advance notice of shutdown to be given to the customers affected. He shall also stipulate the expected duration of the shutdown. In all- cases, the shutdown shall be made under the direction of the Truckee Donner Public Utility District. The full cost to the Truckee Donner Public Utility District for providing any labpr, materials, tools, equipment and incidentals shall be borne by the Contractor. The District shall be reimbursed for such costs by the Contractor upon request, reimbursement to be made prior to final acceptance of the completed water system. The Contractor' s attention is directed to the limits of trench' . restoration as shown n the . plans. The limits as ' shown are for the Contractor' s information only, the exact limits will be as determined in the field by the Engineer. Restoration of trench surfacing shall conform to . ,the requirements designated elsewhere herein. B. GATE VALVES AND VALVE BOXES: Gate valves shall be installed complete with valve box, any necessary extensions and insulation, as shown on the plans, as specified herein, and as directed by the Engineer. C. FIRE HYDRANT ASSEMBLIES: Fire hydrant assemblies shall be installed complete with tee, gate valve, valve box and any necessary extensions, insulation, run, bury, thrust blocks, pad excavation and embanktr.Q.nt , hydrant and hydrant extension, as shown on the SP-.l,3- j pl-ans, as specified herein, and as directed by the [ Engineer. After installation the hydrant shall be painted with a 4 ' mil minimum thickness of red AWWA D102 alkyd paint. D. WATER SERVICES AND METER BOXES �^ Existina domestic water services shall be disconnected from existing water mains to be abandoned and reconnected to new mains, complete with service saddle, corporation stop, all necessary piping and fittings, meter yoke, _ union, meter box, box extensions and insulation, as shown on the plans, as specified herein, and as directed by the Engineer. The Contractor ' s attention is directed to the necessity of maintaining the domestic water supply to the existing i services throughout the construction, testing, disinfection and acceptance of the new water mains and service connections. Completion of new water service connections shall not be made until the serving water , main has been accepted and is fully operational. The maximum time that any individual service may be taken out of operation during the reconstruction is four hours. The Contractor shall provide all fittings as required to complete the service line connection. Meter yokes shall be provided with idlers. Meters will be i set by the District. y� Meter boxes shall be placed as directed, generally located !^ 12 inches from the roadway side of all right of way lines, or 12 inches beyond the top/toe of slopes, whichever is I greater —When placing meter boxes every consideration shall be given to allow the District good access. E. TYPE II BLOWOFF ASSEMBLY ' The complete assembly shall be installed in accordance with I the details included in these' contract specifications and as shown on the plans. F .SACRIFICIAL ANODE CATHODIC PROTECTION I A 5-lb Galvomag, or equal, sacrificial anode shall be installed in a vertically augured hole 3 to 5 feet deep, 3 I to 5 feet from the waterline at 50 ' centers. The lead wire shall be a connected to the pipe by the thermite brazing me-t:hbd, cadweld or approved equal . Before the connection is made, the pipe shall be cleaned to bare metal by means of scraping or filing. After .the connection is made, it shall be covered with a heavy coal tar enamel or approved equal to completely cover the scraped surfaces . SP-14 , G. CONNECTIONS TO EXISTING WATER MAINS: Connections to existing water mains shall be made in accordance with the details as shown on the plans, as specified herein and as directed by the Engineer. All connections shall also be made in accordance with the directives of the Truckee Donner Public Utility District. The Contractor shall give at least 48 hours notice prior to requiring the water service to be turned off during connections to the system. The operation of gate valves or other water facilities shall be performed by Truckee Donner Public Utility District personnel. It shall be the Contractor ' s obligation to pay all applicable costs as may be incurred by Truckee Donner Public Utility District in assisting the Contractor. The Contractor shall expose and verify the specific work and materials necessary to make the two individual connections. The method of connection and type of materials shall be subject to the approval of the Engineer. H . ABANDON EXISTING WATER MAINS: Following satisfactory completion and acceptance of the new water mains and services, the existing water mains shall be abandoned as shown on the plans, as specified herein and as directed by the Engineer. Abandoned water mains shall be capped and thrust blocked, the excavation backfi'Iled, and the surface restored as directed by the Engineer. Such work shall conform to the applicable provisions herein. I . THRUST AND ANCHOR BLOCKS AND CONCRETE ENCASEMENTS: All valves, line fittings# stub outs and pipe alignment changes shall be held in place by concrete thrust or anchor blocks. Thrust and anchor blocks shall be placed as shown on the plans, as specified herein and as directed by the Engineer. Class C concrete shall be placed over, under and around the 8" DIP resting on concrete blocks. The placement shall extend a minimum of 5 feet on either side of the centerline of 'sewer lines as shown on the plans. After installation, all ferrous metal straps, rods, nuts, thermite welds and scrapes and other items shall be adequat-ly painted with a protective paint , Koppers 10 5011 , Scotch Clad 244 , or approve-i equal . SP-15 J . TRENCH RESTORATION: Existing road base and surfacing, driveways, road shoulders, existing ground, and similar items which are removed, damaged or displaced by construction of the work in this contract shall be reconstructed by the Contractor. All work shall match the appearance of the existing improvements as close as practicable. Type A surface restoration shall consist of furnishing and placing Type B asphalt concrete over Class 2 aggregate base at the specified width and thickness. Type B surface restoration shall consist of furnishing and placing Class 2 aggregate base at the specified width and thickness. Type D surface restoration shall consist of placing select native material from the excavation over the top of the backfilled trench as shown on the plans. Neatly mound native material no more than 6 inches above existing ground for the entire width of the excavated area, remove all rocks in excess of 6 inches and grade in a manner commensurate with the surrounding area. The trench area shall be kept level with the adjacent street, shoulder or ground and maintained to prevent a traffic hazard until the permanent restoration is placed. The Contractor ' s attention is directed to the restoration of surfacing within specified limits designated on the plans. The specific limifft of trench restoration as shown on the plans are for the Contractor' s information only, and i-- are not intended to designate the specific limits of such restoration. The specific limits and type of trench restoration will be determined by the Engineer in the- field. The trench widths shown on the plans are minimum dimensions. where trenches are excavated and/or have fallen to greater widths than the minimum width set forth on the plans, such greater widths shall be considered to require restoration. The entire cost of trench restoration in excess of the minimum width shown on the plans shall be borne by the Contractor, and under no condition will the Contract.or be paid for more than the minimum width as shown on the plans and drawings unless prior written agreement is secured from the Engineer. Damage to surfacing adjacent to the trench shall be repaired at the Contractor' s expense. Such repairs shall conform to the requirements for trench restoration . Aggregate base shall be furnished and placed as specified in Section 26 of the Standard Specifications. SP-16 Subgrade and aggregate base shall be compacted to 95% relative compaction. Asphalt concrete, prime coat and paint binder shall be furnished and placed as specified in Section 39 of the Standard Specifications. Prime coat shall be applied to all aggregate base areas to be paved. Paint binder shall be applied to all existing pavement prior to placing asphalt concrete. i^ K. FLUSHING, TESTING AND DISINFECTING : As a condition of acceptance of the completed water system, the Contractor shall flush, test and disinfect the entire pressure water system. The authorized representative of the Engineer shall be present during the performance of all such work. Hydrostatic ' Testing : Pressure and leakage testing of the completed water system shall be in accordance with AWWA C600 , except as modified herein. After installation of all thrust blocks, a minimum time shall elapse before testing, 36 hours for high - early ,- strength concrete and 7 days for Class B concrete. No pipe installation will be accepted if the leakage is greater than that determined by the formula: L = ND P 3 ,700 L = Allowable leakage in gallons per hour. N = Number of joints in the length of pipeline tested. D = Nominal diameter of the pipe in inches. P = Average test pressure during the leakage test in pounds per square inch gage. After testing, the , Contractor shall certify ;to the Owner tbc4t the eniire system has been satisfactorily tested in accordance with the provisions herein. . A copy of the certification form is enclosed for the Contractor' s reference in Item IX. Disinfecting : Following satisfactory testing, the entire water system shall be disinfected in accordance with AWWA C601 , except as modified herein. SP-17 r The duration of disinfection shall be 48 hours. h A negative coliform test meeting the requirements of the County Health Department shall be made by a licensed {{{� chemical laboratory prior to the inclusion of any facility ' into the operating system. 4 . MEASUREMENT AND PAYMENT ' Measurement of water mains and fittings will be linear feet of actual le-ngth placed, including fittings, specials and adaptors. Measurement of gate valves, valve boxes, sacrificial anodes and fire hydrant assemblies will be ' actual count of units in place. Measurement of water services, meter boxes and service ' lines will be actual count of units in place including fittings, specials and adaptors. Measurement of Type "A" and Type "B" trench restoration N will be linear feet of actual length restored. No measurement will be made of Type "D" trench restoration. Measurement of Type II Blowoff Assembly will be per complete assembly installed in place. Measurement of concrete encasement will be linear feet of ' concrete placement parallel to the waterline. Measurement of connecting to or reconnecting or abandoning existing 6" or 8" water mains will be the actual count of said connections, reconnections or abandonments. Item No. C71 4" Tee and 20 feet of 4" Ductile Iron Pipe shall be I measured as a complete assembly installed in place and operational including all specials, fittings and adaptors. No measurement will be made of any other items of work. ' The contract unit price for Type II Blowoff with 2" corp. stop, valve box, gate valve and 2" GSP drainline and drainage pit shall include full compensation for furnishing all labor, materials, tools,, equipment and incidentals, and for doing all the work involved in furnishing and I installing all components complete, in place, and as directed by the Engineer, and no additional compensation will be allowed therefor. I Mobilization will be paid for at a lump sum price. Payment for mot zation shall conform to+ tlie provisions of Section 11 of t't Standard Specifications . The contract lump sum price paid, or the contract price SP-18 L paid per linear foot or per each as applicable for the items of work as shown on the Bid Schedule, shall include full compensation for furnishing all labor, materials, tools, equipment and incidentals, and for doing all the work involved in construction of the entire project, complete in place, and as directed by the-Engineer, and no additional compensation will be allowed therefor. Full compensation for furnishing all labor, materials, tools, equipment and incidentals, and for doing all the work involved in performing all other items of work not shown on the Bid Schedule, including dust control, existing facilities, furnishing and applying water, structure excavation and backfill, trenching, shoring and bracing, project cleanup and finishing, thrust and anchor blocks, flushing, testing and disinfecting, and all such other items of work not otherwise provided for herein, complete in place, and as directed by the Engineer, shall be considered as included in the contract prices paid for the various items of work as shown on the Bid Schedule, and no additional compensation wil be allowed therefor. y ! SP-] 9 r boijrj of Directors Truckee Donner Public Utility District ry P .O. Box 309 u Truckee, California 95734 Gentlemen: This is in reference to the subdivision known as and tests of the water distribution system therein. WITNESSETH: I, the undersigned contractor (or his authorized representative) hereby certify that pressure tests for the referenced subdivision have been made in accordance with specifications of the District and of the Manufacturer. Said tests were made in the presence of a representative of the district. Following are details of those tests: Date of Tests: Size & Length of Line Tested: Pressure Maintained : , Minutes Loss (gal) during elapsed time: CONTRACTOR: By: AA r� Date: License No. : ' FOR THE DISTRICT: I certify that I was present during pressure tests above, that the statements are' true and correct and I hereby approve said tests as satisfactory. Signed : District Engineer; Execute in triplicate Original : District File 2nd : Contractor 3rd : Innyt-ctor SP-20 rO kL 61ON4L PARK iice-EX/WAA6f MANS P FL ANGED COUPL ING I ADAPTOR FOR '6""6Y-SP I I 1 1 I eONNEGT 8"x8"x6"TEE I TO ENO a- G"MAIN- _ F/ELO!VERIFY NECESSA F/TT/NGS, COUPLYNGS OR �lOAOTORS. `,� THRUST BLOCK A -= - - A ICY, - a b-- 8"DUCT/-£ IRON P/PE FOR 8-4.V. st 3 W. FT Cave. PLAN Tf/RUST s�OGsl Sa 48",A&,V1 fUM CON¢/€CT 8":r 8"X 6" TEE p. TO �'"REGIONAL PARK LINE a, I - n SECTION A-A 1 STATION 10+00 - 8 " D. I .P. TIE-IN DETAIL Q N.T.S- ( CONNECTION nq SOUTNSIDE PUMP STATION, T.D.P.U.D. A_ I.P.T. x N.S.H T. I W ADAPTER 3 4 FINISH GROUND SURFACE °C SEE NOTE "' �+ METER BOX W/ TRAFFIC LID. ui W u6"MIN. 3-O FILL SLOPE MIN. � DRAINAGE PIT,APPROX. 2, SQ. x WATER , '�- , 6" BELOW METER BOX EXTENSION MAIN 36" MIN. 2�' GALVANIZED STEEL PIPE iL �L 2 CORP. STOP TYPICAL DEAD END BLOW - OFF CONNECTION SCHEDULE WATER MAIN CONNECTION 2" DwCTILE IRON SERVICE SADDLE DUCTILE IRON OR C.1. TEE W/2"TAPPED OUTLET. NOTES: 1. MUELLER GATE VALVE H-10914 ( OR EQUAL) W/ CLOSE BRASS NIPPLE. 2. ON LEVEL GROUND LOCATE VALVE BOX AT R/W LINE ,IN FILL SLO,E BOX TO BE 18" MIN. FROM HINGE POINT. t TYPE K . 2 BLOW OFF oCG<� 1 — q- FIRE HYDRANT ^ a CUT \ o '•' SLOPE ice, F ?V co w ui i -2% _-2% �- F-W I - - - ,I - - HINGE /� e�� :. to b • NORMAL FILL,-� POINT r-, FILL SLOPE CONCRETE i VALVE BOX I DRAINAgE PIT v EXTENSIONS J- 2_5' DEAPPROX. , LL D INSTALL EXTENSION 2" WITH DEEP, FILLED BELOW TOP OF GATMALVE WITH GRAIN ROCK_ BONNET. WATER MAIN z HYDRANT DRAIN OUTLET4— CONC. `= :.' . - + =; THRUST BLOCK-3-O SO. FT. MIN. THRUST '%- �o-�y; 0. 1. FLANGED AREA. jy PIPE (61 CONC. BLOCK CONC.THRUST e BLOCK - 2.0 SO- FT. MIN. THRUST • AREA. FIRE HYDRANT ASSEMBLY H PAD YDRANT �o I SYMETRICAL CONC.VALVE BOX -/C.I. �- ABOUT k _ COVER MARKED WATER .6 e=; �IRECT STEAMER NOZZLE AS SHOWN � FIRE HYDRANT SHALL BE TRAFFIC TYPE, DRY BARREL, DRESSER 500T o OR EQUAL WITH 2-21/2­ HOSE NOZZLES ,p 8 1- 4 V2 STEAMER NOZZLE. •< ' EDGE OF ` �v EDGE OF SHOULDER �'�% - �., PAVEMENT *HYDRANT PAD roF OF NOTE= TOP I HYDRANT PAD FILL BANKS OpcuT SHALL BE CONSTRUCTED TO THE REQUIREMENTS FOR ROADWAY EIABANKMEN Q SLOPE COMPACTION - 95% MIN. - SEE SPECIFICATIONS. HYDRANT PAD PLAN FIRE HYDRANT" A ..O` er:- = ti:._� �� � u'.•_ .. . ,. ,.;� ._,.:C}'r" (_�`, BELOW FINAL SURFACE W/TRAF IC TYPE C. I. J COVER MARKED WATER: FINAL SURFACE I 61� I CONC. COLLAR �CONC. VALVE BOX EXTENSION -INSTALL EXTENSION 2" BELOW TOP OF GATE VALVE BONNET O.I. WATER MAIN HUB END GATE VALVE ti L �-6" MIN. CONC. THRUST BLOCK 1.5 SO. FT. BOTTOM THRUST AREA. HUB END GATE VALVE COVER SHALL BE I' CONC. VALVE BOX BODY TRAFFIC TYPE C.I. BELOW FINAL SURFACE COVER MARKED "WATER": FINAL SURFACE—,,,, d,� D 74 g"MIN. CONC. VALVE BOX EXTENSION CONC. COLLAR --INSTALL EXTENSION 2" BELOW TOP OF GATE VALVE BONNET D.I. WATER MAIN �rq5 - 6" MIN:-�_ CONC. THRUST BLOCK FLANGED GATE VALVE 1.5 SO. FT. BOTTOM THRUST AREA. FLANGED GATE VALVE GATE VALVE 4 DETA1!_ -1G� CONC. VALVE BOX BODY W/TRAFFIC TYPE C_ I. 2" A.C. STREET COVER MARKED-WATER' \ � PAVEMENT 24 24 STREET E. SHOULDER 15"MIN. STREET E. S. 8" A.B. PLAIN SHOULDER AA Z2�' A.C. VALVE BOX PAD. PAD SHALL BE �^ A PLANAR EXTENSION OF PAVEMENT SURFACE. VALVE BOX PAD VALVE BOX 5 SHOULDER DETAIL A - ro" NEAT LINE CUT MIN MIN 2" ASPHALT CONCRETE E XISTIk`s�V. .O.QOo Quo"oaooOo�o o: 0 pe -.O o. Q o�o 6 REGATE SA SEE PAVING GRADE TY P EAR A" �� • oO o AGGREGATE BASE. TYPE "ES" 1_ SALVAGE EXI57ING SOD REPLACE AFTER OACKFILL IS COMPACTED TO GRADE AND RE LAWN AREAS TO ORIGIN '� FULL COMPACTION TO ORIGINAL GRADE MOUND TO ALLOW FOR SETTLEMENT. TYPE "D" g TRENCH RESTORATION Q J.T.S. PIPE WA'Eh 4fA,."v 3 END PRO✓EC_ T _ INSTALL 8"x 8"X6" T£E W/FLANGEG COUPLING� ADAPTORS AS NECESSARY TO T/E INTO 6 W.S.P. A A 1 FIELD VERIFY NEC- �I ESSARY FITTINGS, COUPL INGS, REDUCERS, a OR ADAPTORS AS NECESSARY TO TIE INTO THE 6 W.sP. PLAN &A, r$ III BQCKF/LG CLA55 III OAGKFILL Q ix iVl95�T'.QC. QNO Z'A.B. —OR— 90$ .P.C_, iLlOU/VOEO, OYFPL,4Y W/THIN ROdO OYJTS/OE Oi �PQQO SEGT/ON. SEGT/ON. � �e ��� � �• _ ; .� �CLA55 I BQCKFILL Q 6"WsP a 6• A, _ B D.I.R 8"NOMINAL THRUST "' aw BLOCK /NSTALL B�:r 8��r B TEE SECTION A-A Scale - /"= 2' 0 7 TIE- IN CONNECTION e REYNOLD WA` )K Koil D TYPICAL CONSTRUCTION- DOUBLE SERVICE TYPICAL CONSTRUCTION- SINGLE SERVICE BROOK'. ' METE F EXTE'. BROOKS 11-2 (CAI)METER ON B I Sul' EXTENSION TO SUIT. CONNECTION TO MAIN 2-ELL SWING CONNECTION IN HORIZ 3 x 3■ TEE (SEE DETAIL BELOW) PLANE,GALV STEEL PIPE ONLY. 4 d �2 SIDE LOT LINE �I"CORP. STOP SINGLE SERVICE TYPICAL SINGL€ SERVICE TYPICAL DOUBLE SERVICE l ONE Wit 3/4'METER YOKE TWO S/8"Y 3/4'METER II YOKES.--- A L _ NOTE: ALL SINGLE AND DOUBLE SERVICES 12"CORP.STOP TO BE GALVANIZED STEEL PIPE LAY GALVANIZED STEEL LOOSELY IN TRENCH PLAN VIEW we SCALE I^�rt 5 1 I _ _ 36"COVER �{ ,SE DETAIL BELOW (SET TOP OF 1111 2"ABOVE GROUND) !/ I� WATER MAIN COVER v 36 NOTE:LOCATE METER ASSEMBLIES 12" i INSIDE STREET R.O.W. LINE OR 12' `I"CORP.Sw BEYOND TOE OF STREET CUT OR FI, SEE DDEur BELOW 1�" CORP. STOP I I"SERVICE LINE LINES, WHICHEVER IS FARTHER EF 2 (SEE DETAIL BELOW) STREET �. R, 1�GALVANIZED STEEL NOTE' NYLON BUSHINGS TO BE INSTALLED 2 SERVICE LINE SECTION A-A CORP STOP AND GALX.STEEL. O SERVICE CROSSING ASSEMBLY BARER MAICE CROSSING FEMALE E ALECI IO�NHEUULf D ♦1" DUCTILE IRON SERVICE SADDLE!x DUCTILE IRON CAR"COUPLER W/TAPPC Z O OUTLET r CUSTOMER TO PROVIDE 3/4" E2 CONDUIT W/PULL LINE TO ELECT.METER LLOCATION, M CORPORATION STOP -,of CRAI CUSTOMER TO PROVIDE COPPER, TYPE K, c % OR GALVANIZED PIPE ONLY, AMtVISID F7 IJ Ir COON AS9::, q�l N fed � -• - - � SURFACE RESTORATION ` AS REQUIRED _ = r— s/��1 it ALL BACKFILL REQUIREMENTS �/ PIPE COVER FOR WORK WITHIN COUNTY OR n Z STATE RIGHT OF WAYS ABOVE r' ,r THE PIPE ZONE ARE -116 BE APPROVED BY THE GOVERNING AGENCY- " ►� WHEN USING GALVV, STEEL IN 1 6 ' MIN. _ PIPE ZONE CLASS II it BACKFILL AT 95% REL- ATIVE COMPACTION WITH l; O MIN. SAND EQUIVALENT 4 MIN. " OF 20. SERVICE LINE 18"MIN. W GALVANIZED STEEL INSIDE ROAD R/W SURFACE - CLEAN-UP AND GRADE TO EXISTING 6 `3 GROUND LINE, MOUND TO ALLOW RESTORATION •� %� ' rrr� FOR SETTLEMENT. FOR SLOPES AS REQUIRED OVER 20% SPECIAL EROSION CONT. SHALL BE PLACED AS DIRECTED Bl THE AGENCY. rr PIPE COVER to CLASS= BACKFILL AT 90% I .'t RELATIVE COMPACTION. 6"MIN. WHEN USING, GALV. STEEL IN THE ' PIPE ZONE , CLASS II BACKFILL 4 MIN. AT 95% RELATIVE COMPACTION. -> SERVICE LINE GALVANIZED STEEL 1 _ 18 MIN. '*W.. OUTSIDE ROAD R/W SERVICE LINE 9 TRENCH DETAIL A a r ml I r " J REQUIRED BEARING AREA - TOTAL SQUARE FEET TYPE OF 111/40 OR TEE OR TEE CROSS CROSS_ FITTING 90° BEND 45° BEND 22 1/20 BEND DEAD END SEE STUB OUT DETAIL d J 411 2 1 I 2 2 2 2 a 6" 4 2 I 3 4 4 . 4 la l 0 8 7 4 2 5 7 7 7 � Lu 10" 12 6 3 6 12 12 12 12" 16 10 5 12 16 16 16 NOTES, (1) THRUST BLOCKS TO BE CONSTRUCTED OF CLASS"B°CONCRETE. (2)AREAS GIVEN ARE FOR CLASS 150 PIPE AT TEST PRESSURE OF 150 PS.I. IN SOIL WITH 2,000 P.S.F BEARING CAPACITY. (3) BLOCKS TO BE POURED AGAINST UNDISTURBED SOIL (4)X�!TS TO BE KEPT CLEAR OF CONCRETE, THRUST BLOCK SCHEDULE