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HUNZIKER STREET SEWER SANITARY SEWER w 1 l f } 6 3 , " /1:/s-7' L�F_Gi.I.: l�h :.JF!7' —!Sem ,�.lu-f-�. �•_ •` . �, . ~,� �,�," t ..- __;_ /n;.!v e /71-11-Y c -/,-:% I � � _t ~ '�T• _ - - - '"7RG.li•.eY+a�. .�. ..""t----. -•s:•ww? .. VI�B.ww. .. ... .5.._ _ 1�_ �•I WYE G r 15 7 copy _ _ ! Ft O = a W d w 3 N D f s l 3k�'evisior. As B Z o �.J V� / Vi_� �7. �..- L/- � f.: . .. /"7.:x.1' %:./J. Y ... J/ /�/ f _ fes. �.['/;C�. _.�4 r�_ //�L.+G_.._... �-/�'�I � .!.3..C,•r i HAI L) Ki Z i FR 5T `� � \! I !�- E 1 \ (� �7 1 1 �=- FIS r X f erg.y/s ry iJ :rc s �rrJ� ct :'si /car/ir�E�. . • •" �•' � � • .�Sf7C5f05 C�/77�fi'7- �//��' ..S`Xi/� b� ///,5E•�r� " ,, [ -{nr s�srw�r /i/r►;� -itir�u,ph Gcir...y f P I ENGINEERING PLANNfNG _ ! c- SCALE AS =i H0V'Y►J DATE f EB. IS, 19b`3 ,4.,T.,W SPe c. C- / c: , DRAWN 8r Q. �.C-M- JOCi No P I �, 8905 S. W C0M1V'ERCIAL ST. -- �r-L-_•-5�+t`•—J T16aApD• ORE6UN 97223 CH E.KE L SY J• 2 /y SHL ta' / / ,.-.� •--� I ! 11,3 ` � I I i I -- - l - - - - - --- -- - - - - - - - - - -� -- - - - - - - - _ T_ /V I _ -- I � , , , : I I fi I j : 1 1 I 1 1 I 1 i 1 MI i L Zs1 W I Y• I lfj, { $T/ ,' r� -+" /r �,•' I l u } .. I � 4 I n L, m ..I .•; I � ! • 1 .1� 4 I 1 1 i 1 , � i I L.. is �--_ . .._..- `�.-. �._.._. -__ �` � �` I i _ -.-•�-.�..- y __ �'.�.� .. c , i + � ( � 1 j a. f !l+ 144 , 1 l /�D. ~9 i r 1 1 - I . 817 8" G h TE .SE PLAN i PLAN-PROFILE O. P. R, t4 ti• E. STANDARD HUIU Z I K LEP 5 1 PE:EV T SFIXIrr 104 • A•' +.iapI1uCI V[LUIM+MAD[ AND ♦IIYN/tD IN u 6 A. i QI ,� EUGENE DIETZOEN CO. .II' tIIt�I�III�'I�IIIIIIII�IIIIrIII�IIIyI�III IIiIIIIIII�IIII�I��I IIII. 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HUNZ I F,EF 5 FF_ SEW�G _-_ ._.._ _ __-----__ EUGENE DIET20EN CO. f, " - ---- ,,� ..... •L I -. _ ...............e,..-..,,.,� - - _ _ s ... ���. f }}: _.._ _ .. .. —._ ._ u..,tiew..`a+alto.�.u+..nr.swae�.�o .e,..!nw.:.+.y♦.:-........,_...,...�.+.w.rr_...-.+,...r,.a_._._a,-,-,,..,....-.. _ . *'I '1�'y 6 fli 11111111111,1 ''11 .. .I j�Illlllj'I I�III mill-[lll (I (SIF �Il1111,1ll) IIIIIIIIIIIIf�I I�IIIIIIIIIIII� 111I111IIIII111 IIIIIIII111'111 TII��IIIIIIIIII IIII1�1'1�1�l11 1_ . -- <. �, _ _ 1 , i +� _ It I 2 3 4 5 6 7 A io 11 1 2 NOTE: 1 F THIS M II:ROF I LME D �^�- ••� - - .--.a -- ----- % 1 'i - " DRAWING IS LESS CLEAR TiAN TH 1S NO T IC&v 2T I S DUE TO I QUALITY OF THE ORIGINAL i 0 ..�,_..^ DRAWING. - _ -. .-- ---- -- OE ez 8Z Lz 9Z Sz fl•z Ez Zz 13 OZ al 81 LI 91 91 1►I el al II of 11 9 L 9 S fr E z I9019" ��11I1N1II111�111111111Iun1n11I,11tI111tl�lllllllltlllif,ltllllu,1,t111,udrtr, ,ull1�l1iflf1nllr�tul1tlit{nIlIllnillllIulfllllt1lllllllill:IflunIfllc,infIttltlt►t1ltulIIIt4IM1{tH1N1 , NIllulllllllulllulItnt �1�1IIH ' -- - " J UNI- . --qr-­W.w��.wmm �� A� -- 1 ­ . JL:� 3 � 1. 99 " � I r'. . 4 ! I . .., - I �.�_ I . .­ -00111-- _wAsmollwNp- r � a A,& - I '�!-,Aamip#,,:�.�� _' * & I --. �, �'�. G. '' {�"ary rI"i. f-'"1 '� _S Y ! ;e i. i a .ti ;:"I „ 7 �! a L '9 r "tea '. J,'',x w " .,�,:k,. xu ^1F �(1 a1> f• 1 fit °`{F, i�1'N1 d .� K,...; rly ,, a ,:., i. .�. .. '� ..,� ,- .. ,.�,.A.. r,._ b t. l ro"(�p .i'. e. •'d - ..d'8. p 3 3 LSF• cr fD O N G i�a) m2- 00 j_W90 C —(n � —v JU j wm • V, _ C En o- l< �0 m a o� lD H 3 O Cl. �O o J O ^ ✓ai N �/ O e�1 /0ou F u1 N N h G O O II U •1 b 0 u � I 8 St S R I Jill Il JM7 cy i- 0 1 O U O O O O O 7 O O p aQ �n .p N .► rf ry V) � s. � v' :I �' '� N • rf N w O O O O O O O O L: 0 li x a p�U U I 0 z S* .7 'bL +7 t. �' �nyy0 VI t. •� O Wto I Lw Qtly 3 4 L 'O Q o b S.8 C w 4. L =f r•� y 4 Vl p,•t'1 � `..) H V OA L z n a aY a L S7 «4. ri J. S � y9 o aC ti v�%I $ _ k _ 0.. n y � � eyyc�y�pjm31 �.9 !1 � dssUd E , a,041r. r o \ a n 7 U a ro h 8 S Q C 0 z o Sk r 0 0 0 0 0 00 0 0 0 o a ro n m n • 'J V o a ap n ui ui ri .v o 0 0 o r� o o d w � M O x a z 9' I ZI oIn a w d m 3 b m.n g V .D y z iI Ur1 C y y�I p. �j r1 N y Ww l a�� � tipjq.� o „ aBo P7I °� gwnya " � e�nyaCd r.tt�i a 0. is N� .� N R�f O C. •p a �l �. Q ,g .�� � �j Oq V, �'1 6� " GY � w t VI Oy •y .. _u w eiri y oU- ei Q yyy �1' "V7 y�O�1-�A VV �M pj }p) v HARRIS & GRIFFIN Civil Engineering & Planning 8905 S.W. Commercial Street Tigard, Oregon 97223 Telephone: (503) 639-7705 February 11, 1969 Mr. Keith Thompson Director of Public Works City of Tigard 12420 S. W. Main Street Tigard, Oregon 97223 Dear Keith, Enclosed are three (3) sets Of' plans and specifications for the Hunzicker Street sanitary sewer prc,ject. Also enclosed is our construction c,st estimate for the project. The owner, Peterson & Spitznagel will forward 'to ,you the Cit,yls 1 fee of $163.43 within a few days. Sincerely ,yours, i4-e-1tl r /�/ ✓ �`l- V James R. Harris Enc: plana & specs. (3) cost est. JRH:oo REGEIV ECa FEB 1'12 1965 CITY of ToRD HARRIS & GRIFFIN Civil E„gme9ring & Planning 89r,6 S.W. Com,,ercial Street Tigard. Oregon 57_21 Telephone: (5031639-7705 Tebruary 11, 1969 State of Oregon board of lealth Sanitary Authority 1400 S. W. 5th Avenue Portland, Oregon 9T201 Attentions Mr. Garold Milikan Gentlemen: Znclosed for your review are two (Z) sets of plans and specifications titled Hunieker Street Sanitary Sewer. Upon completion this sower will become the property of the City of Tigard. A copy of your coaments should therefore be forwarded to the City. Your early considonAtion of this project would be appreciated. f Sincerely yours,) Janes R. larris Zoo. oat City of Tigard AM too PROPUSAL .r- _'' .r� �,✓��TSG= TO: Peterson & Spitznagel 825 S.E. 30th Portland, Oregon :7214 leme. The undersignera a-%-,examined the site, plans and specifications, lgys-and ordinances governing th-e-proposed tiunzicker Street Sanitary..Sewer. In accordance with the terms and Iro-vJJsion s_in-•i,ne""foregoing, the following prices are tendered as anfer-%Cd perForia-th_e work and furnish the material where re u ; ete in place. Payment sha a made as specified in 1�e"�e��n-aMeasr�resrtecrb-anr]-Ps,;menu-oF—the--Specd.•f-ie`at'ic•�c� Iters Unit Tutal No. Item Quantity Price Price 1. Furnish and install 8-inch concrete sewer pipe including exca-•ation and backfill 1,215 L.F. ow, 2. Furnish and install manholes complete and ready for service 4 only %' 3. Furnish and install 6-inch stub- outs in manholes 2 only 4. Break into existing manhole Lump sum $ gyp`-' $ U 5. Furnish and install railroad undercrossing complete and in place Lu r.p sum $ y 4 o. Select bedding material 50 C.Y. - 7. Select backfill material 1,050 C.Y.- .- TOTAL $al @cftt4,•r�Lcrr � ' r'•''r i/�C•/..' � G.�',d�/r r'� ,.'' Signed b,y Date Address Phone IF' n..:. .-NG` .;TI�TLL" '--r s v c. ,_r_so_---N APPROVED FtGir - C TY UPTIGARD I- DATE BY TIT LE DATE- BY � � -- IS - GRIFFIN Coaw..... ial Street iGrS, Oru�,on J72�3 639-7707 �\GJ��G►N(�����s OREGON ✓,9 �iy 12, ti°)° ,.v5 /l�Fs R, NP�� S.�EC ICAl'lONS' HUNZICKER STREET SAN TARY S99M ':ABLE OF CONTENTS Page SECTION 1 GENERAL CONDIT.IOivS . . . . . . . . . . . . . . . . . . . GCI-GC15 SECTION 2 GENERAL SPECIFICATIONS - SEWER . . . . . . . . . . . Sewer 1-Sewer 9 SECTION 3 SPECIAL PROVISIONS . . . . . . . . . . . . . . . . . . SP-1-SP-2 SECTION 4 MEASUREN7vT AN,'D PAY: LINT . . . . . . . . . . . . . . . . . . M&P-1-M&P-2 Gc:iur'L'.;., SrLCL:ICATIOiuS SZ..."i3 TABJJJ OF CONrIMNTS P.:n-o 2-01 - Sower Pipe Se:�Or-1 2-02 - I:anholca Se,.or-1 2-03 - Concrete Sewor-2 2-04 - Badding Gravel Sewer-2 2-05 - Soloct Backfill Sewer-2 2-06 - T`imberino Sew r-2 2-07 - Trench F: cavation Sewer-2 2-08 - Timbering and Sheeting Sower-3 2-09 - Pipe Bedding Sewer-3 2.-10 - Tunneling Sewor-!t 2-11 - Highway and Railway Crossing; Sewer-4 2-12 - Grade Boards, Linos, Polos and Plumb Bobs Serer-4 2-13 - Traffic Maintenance and Protection Sewer-5 2-14 - Pipe Laying Sewer-5 2-15 - Aligm-aent Tolerance Sewer-5 2-16 - Joints Sewer-6 2-17 - Joints for Force Mains Sower-6 2-18 - Backfill Sewer-6 2-19 - Side Sewurw Sewer-7 2-20 - Manholes Sewer-7 2-21 - Flushing; and Tasting Sewer-8 Standard Sewer Details Sewer-9 Sewer-1 J.ilii,l.Cw G MATLiIALS Sown: pipe shall b3 of the type designated on the plans and ir. the Special ProV�oions. Tho pipe manufacturer's technical literature, tables of dimensional tolerances and plant certification that pipe f urniohed meets the required specifications shall ba providad to the Engineer if so requested. 2-01.1-Concrete Pipe Plain concrete sErrer pipa shall conform to AST14 Specificatio, is C-14 for extra strength non-rairdorced concrete sewer pipe. ie iru orced concrete pipe shall conform to AST:d Specifications C-76. Rubber gaskets shall conform to ASTLM C-",3. 2-01.2-11ay Pie Clay sewer pipe shall conform to ASTE C-278. Compression gaskets shall conform to ASTM C-4,25. 2-01.3-Asbestos Cement Pipe Asbestos cement sewer pipe shall conform to hSTA C-428. Pipe class shall be as specified on the plans or as directed by the engineer. 2-01.4-Cast Iron Pipe Cast iron pipe shall conform to ASA A21.6 or A21.8 of tho class and type specified. Pipe shall have manufacturer's thin cement lining generally conforming to ASA 21.1 except as to thickness. 2-02-Vanholes Standard precast manholes shall be used unless otherwise sp6cified, and shall conform to A.S.T.1,. Specification C-1178. Manholes shall be of thG form and dimension shown on the Standard Details. Sower-2 2-02.1-Frames and Covers Manhole frames and covers shall be extra heavy type for standard paving, similar and equal to Valley Iron and Steel Co. Manhole Frame Pattern No. 105 with Manhole Cover Pattern No. 106 with one lifting hole only in the edge of the cover. Water tight manholes, when specified, shall be similar and equal to Valley Iron and Steel Co. water tight frami_i and cover Pattern No. 100. 2-02.2- Base The base slap for all manholes shall be concrete with a compressive strength of 3000 psi at 28 days. Channels through the manhole shall be made to conform accurately to sewer grade, and shall be brought smoothly together with flow lines directed toward outlet pipes. Rough, uneven surfaces which could catch and hold sewage solids will not be accepted. 2-03-Concrete Bedding and encasement concrete shall be Portland cement concrete containing not less than six (6) sacks of cement r3r cubic yard. Sand, .-ravel and water proportions to be as directed by the Engineer. All co:icrete shall have a minimum compressive strength of not less than 3000 psi at 28 days. 2-04-Beddir_g Gravel Bedding gravel to be usad shall be of a type and gradation to provide a solid compact bedding in the trench. Bedding gravel within 3 inches of the pipe shall pass a 3/4 inch mesh and shall contain only negligible amounts of material finer than #30 Lieve. 2-05-Select Backfill Backfill gravel shall be 100 per cent 31+ dic-mater or less and may be bank run which has passed through a 311 screen, provided the binder content is not more than 20 per cent and provided there is a reasonable grading from fine to coarse. 2-06-Timbering Timbering and sheeting, when required, shall be of Standard Grade Douglas Fir, excep-114- where special conditions require better material. The material may be unsurfaced. CONSTRUCTION 2-07-Trench Excavation Trenches shall be excavated to the line and grade designated by the Engineer. Except for unusual circumstances where approved by the Zngineer, the trench sides shall be excavated vertically and the trench width shall be excavated Sewer-3 only to such width as is necessary for adequate working space. The maziraum trench width at the top of the pipe shall be 30 inches for pipe up to and including 12 inch inside diameter and the outside diameter of the pipe barrel plus 16 inches for pipe larger than 12 inch inside diameter. Where higher strength pipe or special bedding is required because of excess trench width, it shall be furnished without expense to the Owner. The top width of the trench shall not exceed the outside diameter of the pipe plus 36 inches. The trench shall be kept free from water until jointing has been completed. Surface water shall bo uivcrtc,. se as not to enter the trench. The Contractor shall maintain sufficient -,jumping equipment on the job to insure that these provisions are carried out. There shall be no boiling or quick condition permitted in bottom of trench. If a quick condition has occurred, the trench stall be overcut to undisturbed material and filled to sewer grade with free draining foundation gravel as shown on Standard details. Trenching operations shall not proceed more than 200 feet in advance of pipe laying except with written approval of the Engineer. When trenching operations cut through conerote pavement, the pavement shall be removed to width of 18 inches greater than the top width of the trench. The concrete shall be cut on a straight line and shall be beveled so that the out will be approximately 1 inch wider at the top than at the bottom. 2-08,- Timbering and _Sheeting The Contractor shall provide and install timbering and sheeting as necessary to protect workmen, the work and existing utilities and other properties. All timbering and sheeting above the pipe shall be removed prior to back- filling. Sheeting below the top of the pipe may be out off and left in place. Removal of timbering shall be accomplished in such a manner that there will be no damage to the work or to the ott,ar properties. All timbering and sheeting shall be to the Contractor's design and the coot of the work shall be included in the bid price :of trenching and backfilling. 2-09-Pipe Bedding Pipe bedding shall be accomplishcd as shown in the Standard Datail. Unless otherwise specified or required by the En,;inaer, pipe shall be bedded as shown for Ordinary Bedding. Miere the material at the bottom of thu trench is unstable, the matter shall be brought to the attention of the Engineer. The unstable material shall be removed to the extent directed by the Engineer and backfilled with foundation gravel, bedding gravel, and/or bedding concrete. : oulders, rocks, roots and other obstructions shall be entirely removed or cut out to the full width of the trench and to a depth 6 inches below the pipe. The trench shall be backfilled and compacted to grade wit" select bedding gravel. In sol.ic' rock the trench shall be excavated 6 inches below the pipe bottom and backfilled as provided above. Sower-4 The bottc,:n of the trench shall be finished wi.�h hand tools to provide uniform bearing along the barrel of the pipe Lnd to provide suitable holes to fit the pipe bells. Whenever the trench is excavated below the depth required, it shall be backfilled with bedding gravel and compacted as required by the engineer. 2-10-Tunneling; Tunneling may be orderad by tine unginear undor pavements or otherwise. The Contractor may tunnel in liau of tronching for deep cuts. ixcept where authorized by the Engineer, such tunneling shall be not longer than 20 feet between shafts. Tunnels shall be not less than 4 feet high and 2 feet wide and not less than 1 foot wider than the outside diameter of the pipe. Tunnelo shall be backfilled with materials acceptable to the engineer and backfill shall be mechanically compacted. Subsequent low pressure grouting may be required. 2-11- Highway and Railway Crossings The Contractor may use any method which provides satisfactory results and is acceptable to the Governmental or private agency having control of the road or track and to the Engineer, provided that the Contractor restores the crossing to its original condition. Normally, these crossings require the placing of steel, cast iron or concrete pipe casing by jacking or tunneling and laying the sewer line within the casing. 2-12-Grade Boards, Lines, ?olGs and plumb Bobs The Contractor shall furnish materials and erect grade boards, and targets and transfer the lines and grades thereto for excavation or for laying pips, and shall furnish lines, measuring; poles and plumb bobs. Grade boards shall not be less than 1 x 3 S1SIL and shall be adequately supported. The distance from the grade wire to the invert or the sewer shall be measured by a pole, which shall be straight grained, planed pole, fitted with an iron shoe extending at least d inches from the pole at the lower end, and clearly marked at internals of one foot. A plumb bob shall be used to check the line of the pipe. Both grade and line shall be checked for each length of pipe laid, except at tunnels or through jacked casings where adequate methods shall be used to carry forward the line and grade. Grades shall be carried by means of taut grade wire supported on firmly set batter boards at intervals of not more than 30 feet. Not less than 4 batter boards set from grade hubs shall be used at one time,. Grade shall be constantly checked and in event that batter boards do not line up, work shall be stopped until the situation is corrected. The Contractor shall replace all monuments, right-of-way markers, prop<;rty stakes, etc., that aro removed or disturbed, to the satisfaction of tho agency or individual concerned.. Sows,r-� 2-13-Traffic P%intenance and Protaction The Contractor shall conduct his operations so as to minimize interferonce with automotive and pedestrian Soffit shoulders shall be plainly marked so as to warn motorists. On important traffic streets, the Engineer may require the const:-action of two-way bridges of approved construction. ti•4 :ero detours are built, they shall be graded and .maintained to ti:e satisfaction of the Engineer. Streets where construction has been completed or is in progress shall be graded and maintained to the satisfaction oZ the Engineer. Detours for foot traffic shall not be more than one block in length, and shall be provided with adequate handrails, all at the Contractor's expense. All work shall be carried on with due rogard for the safety and convenience of the public. Open trenches shall be provided with barricades that can be seen at a reasonable distance, and at might shall be adequately lighted. Bridges for either behieles or pedestrians shall be indicated by lights. Adequate lighted signs for detours and construction in progress shall be provided. Safety instructions from the Engineer shall be strictly observed, but following of such instructions shall in no way relieve the Contractor of his responsibility or liability. 2-111-Pipe Laying The sewer pipe shall :.j laid in accordance with the plans and specifications. Each pipe shall be laid with bells upgrade with the invert of the pipe to the alignment and grade shown on the plans. Care shall be exercised to insure close concentric joints and a smooth invert. Open ends of pipe or fittings shall be tempora7�ily blocked when laying is not in progress. Adjustment to the line a-ad grade shall be done by scraping away of filling in and tanpinb material under the boder of the pipe. Adjustment to line and grade by wedging and blocking shall not be permitted. The pipe shall be lowered into the trench by means of ropes, tripod, crane or any other suitable raaans. The pipe shall not be dropped or handled roughly. The pipe shall be checked for cracks and defects prior to use, and any defective pipe laid aside. 'N'yes and standing connections shall be installed at such locations as are shown on the plans or otherwise directed by the EnZineer. 2-15-Alignment Tolerance The maximum tolerance from true line and grade shall be as follows: a. Maximum deviation from true line and grade shall be 0 031 feet for pipe to 19 inch inside diamtor, and 0.021 feet per fcot inside diameter, with a maximum of 0.062 feet, for pipe larger than 18 inch inside diameter. Sewer-6 b. No adverse grade in any pipe length will be permitted. c. The difference in deviation from true line and grade between any two successive joints shall not exceed 1/3 of the amounts specified above. 2-16-Joints Joints shall not be coverec until examined and approved by tho :;ngineer. Only pig:;.: layers with exp;.riance with the type of gasket shall be allowed to lay tlza pipe. The Engineer may domand proof of such experience before pi-,,a layir.v, may begin or be continued. Jr:. m:aurial shall be used in accordance with the recommandations of the Pipe handling after the -as!.et ::as been affixed shall be _ul controlled to avoid bumping tho gasket and thus knocking it out ,ozitioa or loading it with dirt or other foreign material. iLny gasket �o �.:sturoed shall be removed and replaced, cleaned and re-lubricated, if r::cuirea, before the joint is attempted. shall be taken to properly center the pipe prior to jointing. During of the tongue or spigot, the pipe shall be partially support-ad by slidg or crane as required to minimize lateral pressure on the gasl'et, a;c to ma:.ntain concentricity until the gasket is properly p.Sitioned. ?i�je deflection r nd straightening shall be held to a very ir+.nimum once the ;joint is home to prevent, creep of the joint. Sufficient pressure shall be applied in making thc: joint to :.ssure that the joint i3 home as defined in the standard installation instructions provided by the pipe manufacturer. Sufficient restraint shall be applied to the line to assure the joints once homo are hold, b;)• ';amping fill m- te Tial under and alongside the pipe. At the end of the day's work, the laot pipe shall be blocked in such a manner as may be required to prevent creep .uring down times 2-17-joints for Force Mains .Joints shall be made up as recommended by the pipe manufacturer for the particular joint specified. blocking shall he installed at changes in direction and in a manner acceptable tj the Engineer. Eneasemont of pipe shall be as directed by the Engineer. 2-19-BraWi.3' Joints shall not be covorod until approved by the Engineer. Backfilling under, around and above the pipe shall be accomplished as shown in Standard Detail. All material within 6 inches of the pipe shall be select matarial hand placed with no large stones, roots or other large objects. The material shall be hand tamped or water settled, as directed by the Engineer. Sewer-7 When granular material is used as backfill, compaction around the pipe may be accomplished by water settling, provided that circumstances are such that the pipe will not be disturbed by flotation. The remaining granular backfill shall be water settled unless otherwise ordered. Wrosre possible, the trench shall be partially filled with water and the backfill material dumped into the water. 1%-mere trench is too pervious for filling, the backfill material shall be thoroughly saturated with a fire hose stream while being placed. t;'here the material excavated from the trench is clay or other impervious soil, the compaction around the pipe shall be by hand tamping. The remainder of the bac will shall be placed danp at as near optimum moisture content as possible. Cara shall be taken to remove and divert water from the trench which would make the backfill mater.-Lal plastic. The material shall be placad in layers approximately 1 foot thick and shall be sproad and walked by workman in the trench to avoid air pockets and to provide some compaction. dere trench is under the traffic lanes of streets or roads or under sidewalks, parking areas or other locations which re to be surfaced or which carry automobile traffic, the backfill material shall be compacted in 6 inch layers by hand or mechanical compaction. The backfill material ;hall be frae from rubbish, weeds, other organic material or stones neighing more than 50 po-ands. Ihere directed by the ingineer, the top ;,wo feet of the backfill stall be placed dry and rolled wiu-h a tractor or truck. Suitable allowance shall be made for subgrade or surfacing material where o. '-ired. The Contractor shall remedy without additional compensation, any defec , s that appear in the backfill prior to final acceptance of the work. 2-19-Side Sewers I•^here applicable, all specifications contained Eeroin for sewer materials and construction shall r,� held to apply to side sewere. Side sewers shall be constructed whore shoim, or where directed by the Engineer. Lxcept where immediate connectioa is made by the proparty owner the side sewer shall be sealed at the property line with a stopper using the same joint as the ;Hain sewer. Slope of side sewers shall not exceed two feet vertical to one foot horizontal and grade shall not be less than two per cent (2%). Side sewers shall not be installed as vertical risers. 111here change in slope is larger than 2 inches per foot, standard 1/8 bends shall be used. 2-20-1Sanholes 1,1anholes shall be constructed as shown in Standard Detail for standard manholes and drop manholes. IZanholes shall be of precast reinforced concrete. Sewor-3 The manhole base slab shall be placed on firm soil. If the foundation material is inadequate, the Contractor shall notify the Engineer. The; Engineer may direct the use of foundation gravel or bedding concrete under the normal base. All joints and connections to manholes shall be made with cement mortar or other approved jointing material and shall be water tight. Joints and connections shall be finished on interior and exterior of manhole. 2-21-Flushing and Testing Tests for water tightr.3ss shall be made by the Contractor :.n the presence of the Engineer. At the option of the Engineer, testing many be by infiltration or by leakage from a filled sewer. Infiltration shall be measured with the trench material saturated with water where practicable. The leakage tett shall be made by plugging the outlets of the lower manhole and filling the sewer to the upper invert at the upper manhole. Care must be exercised so as not to subject the pipe to excessive hydrostatic Pressure. The leakagd or inti-tratiin between any two manholes shall not exceed 500 gallons per day per inch or diameter par mile of sewer. All lines shall a flushed clean prior to their acceptance. Flushing shall be done witli a traveling plug anime , large volumes of water. Contractor shall furnish watdr for flushing and testing. w6nkole cover acjU41 is At, jc;M4� 0-p prec'an+ !arm No.105 C"-war 1\40,104;. MAV41ol,," 40 lac V144e-rtkCj4 L 2 T S+arI8Grj Coric Section T �77 In rl be�a c P--,.;.v- Nla4arial Compav-4ad A A Vak-41cal Rpe- 4,0 be V. SOA-Ae S Ac as V41n 6 E!� 7 I r �',,4 f7AWQ/-lrf-Q MANOL DROP MAW-IOLS 04' t?-0 1 I-A AFQ'I' S EQ D i ts C-3 c",&44nr 6EDONG IN YIELONG SPIOUNO E14CAS.EL1=NIT HARRIS Is' GRIFFIN DIE'TAILS F, ENGINEERS SPECXAL PROVISTONS '.•.BLE 0 ' CO:;�' "In. ,`i 3-01- Location C!P_l 3-02- Def.-Ln-IL dons SP-1 3-03- Control of 1%7or k SP-1 3-04- Scope of :•:ork SP-1 3-05- Subsurface Condition;, SP-1 3-06- Plans 3-07- Guarantee SP-2 S P-?. SP-1 SECTION 3 SPECIAL PROVISIONS 3-01-Locnt icn This sanitary sewer project starts in the 7900 block of S. W. Eunzicker Street and runs along Hunzicker Street southeasterly approximately 1,215 feet. 3-02-Definitions "Owner": Peterson & Spitznagel "Engineers": Harris-Griffin, or their authorized representatives. "City": City of Tigard, Washington County, OrE;gon 3-03-Cortr.i i Work All work under this contract shall be executed in a manner satisfactory to the Engineer and the City. The work shall not be considered complete until accepted by both the Engineer and the City. 3-04-Scope of Work The work to be done under these specifications and plans which accompany them consists of the construction of sanitary sewers, anholes, and such appurtenant facilities and work s indicated and requirQd. The contractor will be required to furnish all labor, mriterials and equipment necessary for construction of the systems as indicated on the plans and stated herein and to furnish all miscellaneous items required to complete the work. 3-05-Subsurface Conditions Adverse soil conditions may be encountered at some locations. The extent of such adverse conditions is not known, but the design has been prepared with the intent of effecting a sewer that will be as shallow as is practicable and yet accomplish the objectives of the project. The con- tractor should recognize that these considerations can allow little if any adjustment of depth to avoid difficult excavation. f f SP-2 3-05-Plans Plans for this project are shoim on a drawing consisting of one (1) shoot which is bound separately and which bears the title: h` IZICIMR STREET SANITARY SEWER PLAN & PROFILE 3-07-Guaranlvca ti:hethar or not there appcaars hero or elsewhere herein specific refer3nce to guarantees of all items of material, equipn=t, and wor;=nship, they nevertheless shall be so guarantood against mechanical, structural, cr orther defects for which the contractor is responsible that may develop or become evident within a period of ono year from and after acceptanw of the work by the ownor. Such guarantoes shall include care of baclCilling of ditches or at structures should the fill sottle to such extant as to raquire refilling or rosurfaeing roadway surfaces to restore the original or intended condition o: grade. This guarantee shall be understood to imply prompt attention to any comedy of such defects as those mentioned above if and as they occur after the contractor shall have written notice of their axistenee. If the defect is of such nature as to demand irwaedic's repair, the owner shall have the right to :Hake them and the cost there shall be borne by the contractor. To support the above guarantees the contractor's performance bond shall remain in full force and effect for one year following the acceptance of the project by the owner. The bond shall be executed by a surety company authorized to do business within the State of Oregon and it shall be subject, to the approval of the attorney for the owner. In cddition to the above requirements, the contractor shall make his own determination as to the amount of the maintenance bond which will be required by any corporation or agency granting a permit °or work to be done under these plans and specifications. Such bonds shall be in addition to that required by the owner as indicated above. M*-Vt,SU!L2lXNT AIM PAYICNIT Obi Co, S Page 4-01- Payment MU-1 4-•01.1-Fumibh and Inst,311 Concretc Pipo r'y?cP-1 4-01.2-1,lanholes M&P-1 4-01.3-Cleanouts I•uP-2 4-01.4-Pipe Fittings WccP-2 4-01.5-Sodding Material Ndi-2 4-01.6-Solezt Backfill pieP-2 SLCTIG;� !� =SUPwDMNT AND PAl2",c,NT 4-01-Payment for all Mork undor this Contract shall be r,.a 3 ar, follows: 4-01.1-Furnish and Install Concro o Seger Pi g, Inclu.din; Trpnc% EEC avation and Lacl:f3JT - Includes trench excavation, backfill and the furnishing all se-.%;r pipe, materials and wor.c necessary to lay a complete se"wor lira, and testing the pipe. Payment brill be made for footago actually laid as measured along the ground ::rom center to center of manholes or to limits of Contract. Toes and pipe fittings will be raid for under other bid item; br.t are also included in the lineal feet of sewer pine paid for under this item. These items shall include pay ant for excavation of all materials of whatever nature encountered, except solid rock. Boulders over 1/2 cubic yard will be paid for as solid rock. It is not expected that solid rock will be encountered, and if it is encountered, it will be paid for as an extra. These items shall include the cost of sheeting, bracing and dovatering, if necessary, and excavation f)r manholes and draina,;o structures. The cost of hauling array any excess material shall be includod in this ita.m. The cost of Clea-_ng for installation of p-lpolina is also included. These items include the cost of removing and replaeina Fences, mail boxes, poles :end posts of all typal, trees and shrubs, and rookeries; trenching; through paved streets, latm area and driveways; furnishing and placing of gravel and crushed rock on road shoulders to restore surface to or3.;ina1 condition; tunneling under walkways less than 5 feet in width and restoration of all other surfaros not included in unit bid prices. These items include the cost of restoration of driveways and roadway asphalt surfaces in accordance with County requirements. L-01.2- '•,'nholes Price includos furnishing all materials and constructing standard manholes as shown on the Standerd Details. i I II 1 • TILL-"� Cleanouts Price includes furnishing all Materials and constructing Standard clGanouts as shown on the Standard Details. I'ittina.,s Paymant for providing and installing pipe fittings for so vices is in addition to the prices i.er lincal foot of pipe. lne exact number and type will be deterrnincd in the field. rho costs of furnishing and installing plugs as nacesoary to seal the line at locations for side sewers and house sowers are included in these items. 4-01.5-EFdding Nateriai Includes furnishing and placing beddin, gravel and/or foundation gravel in accordance with Standard Details. Bedding gravel r,;uuircd by unauthorized excavation below the required trench depth or excavation of trench width greater than thirty inches (3011) not be paid for. 4-01.6-Select Backfill The uni-,; price per cubic yard includes all costs to furnish and Place select backfill in accordance with these specifications. The contractor will provide to the Engineer delivery slips for materials delivered under this item.