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HomeMy WebLinkAboutORDINANCES-1971-111-O-71Form 2a BL1 500 11.56 e . 4 111-0—?l AN ORDINANCE FOR THE CONSTRUCTION OF A LOCAL IMPROVEMENT . • known as EV,^NSTON Sp�.CIAL ASSESS1,1EE JT N,C). .1323 0 BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF EVANSTON, ILLINOIS: Section 1. That a local iinprovernent shall be made within the City of Evanston, County of Cook and State of Illinois, the nature, character, locality and description of which is as follows, to -wit: That the roa&.ay of the public alleys in the.block bounded oi; the north h-,,' EMerson Street, on the south by Lyons Street, on the east by Lemar ,^,venue and on the west by Lei: nd :venue, in --he City of 'Evanston, County of Cook, State of Illinois, be improved by grading, constructing, nece.s-5ary storm sewers and drainage structures, and paving to a width of fifteen (15) feet with a Portland Cement Concrete pavement eight (8) inches thick, Section 2. That the Recormuendation of this Ordinance by the Board of Local Improvements of the City of Evanston, Illinois, and the Estimate of the cost of said improvement made by the Engineer of said Board, both hereto attached, be and the same are hereby approved and by reference thereto made a part hereof; Twent� Six Thousand, Two Hundred Fifteen and 20/100 Collars ($26,215.201. Section 3. That said improvement shall be made and the cost thereof, inclu ing the surn of Two t r c` 6`. � IL,n � . -Dollars, being the Thousand, Three Hundred Eighty and no/100-j'02-1 Do cost of making and collecting the Assessment and all other expenses as provided by law, shall be paid for by Special Assessment in accordance with an Act of the General :-assembly of the State of Illinois, known as the "�P jqb 't�gs�r1q. - �}- 6 �� pt����a�g�� ��biXarid the Amendments thereto; "ilk a nog s „ui�3_cip Coce, eT=ec. July 1, 19619 Section 4. That the aggregate amount to be assessed and each individual assessment shall be divided into ......tnrl._______________ installments in the manner provided by law, and each of said installments shall bear interest at the rate of ........ per centum (........ per annum from the date of the first voucher issued on account of work done upon said proposed improvement; Section .5. That for the purpose of anticipating the collection of the installments of said assessment levied against the real estate benefited therebbonds shall be issued payable out of said installments, bearing interest at the rate of ___-.__.____-tAl --------- per centum (------- ..q) per annum, payable annually _ and signed on behalf of the City of Evanston, Illinois, by its Mayor and attested by its City Clerk and its corporate seal affixed thereto; and each interest coupon attached to said bonds shall likewise be executed by and shall bear the official or facsimile signature of the same officers who signed said bonds and who, if facsimile signatures are used, do adopt by their execution of said bonds as and for their proper signatures their respective facsimile signatures appearing on said coupons; and that said bonds shall be issued in ac- cordance with and shall in all respects conform to the provisions .of an Act of the General Assembly of the State of Illinois, known as the�t;C�Iseti�t [�tC2ctgdt}liltslK? 3":Ithe Amendments thereto; I1� ri0iS 1Ul'1LCi;4cf_ �Oc" c, ettc.c. 1, y , f- 0 Form 2b BLI 500 11-56 • C: • Richard A. Gatti President Section 6. That --------------------------------------------•-•-- - - of the Board of Local Improvements of the City of Evanston, Illinois, be and ....he is hereby directed to file a Petition in the County Court of Cook County, Illinois, praying that steps may be taken to levy a Special Assessment to pay the cost of said improvement in accordance with the provisions of this Ordinance and in the manner prescribed by law; Section 7. That all Ordinances or parts of Ordinances conflicting with this Ordinance be and. the same are hereby repealed; and Section 8. That this Ordinance shall be in force and effect from and after its passage and approval according to law. Adopted by the City Council of the City of Evanston, Illinois, on the 20thday of December A. D. 19.7.1....... December 20 71 Approved......... -....... --..................... -..------- - ---- 19...... __ Edgar ... Vanneman, Jr. Mayor a Qi 0 Maurice F. Brown - -- -------------------------------------....... City Clerk �j Form 3 BLI 500 11-58 1 RECOMMENDATION OF THE BOARD OF LOCAL IMPROVEMENTS TO THE CITY .COUNCIL OF THE CITY OF EVANSTON, ILLINOIS. The Board of Local Improvements of the City of Evanston, Illinois, herewith submits the draft of an Ordinance for the making of a local improvement within the City of Evanston, County of Cook and State of Illinois, the nature, character, locality and description of which is as follows, to -wit: That the roadway of the public on the north by Emerson Street, on the east by Lemar Avenue and in the City of Ev.anston, County improved by grading, constructi drainage structures, and paving with a Portland Cement Concrete alleys in the block bounded on the south by Lyons Street, on the west by Leland Avenue, of Cook, State of Illinois, be ng necessary storm sewers and to a width of fifteen (15) feet pavement eight (8) inches thick, and as part of said .Ordinance and in conjunction therewith, said Board also herewith submits the Plans and Specifications of and an Estimate of the cost of said improvement, including the cost of engineering services, • as finally determined by said Board: and said Board hereby recommends .the passage of said Ordinance and the making, of the improvement described therein. Approved as to form: • James T. Murray _ Attorney for the Board of Local Improvements of the City of Evanston, Illinois. Respectfully submitted, BOARD OF LOCAL IMPROVEMENTS of the City of Evanston, Illinois. by - �' ---- — - Richard A. tti, President Ki" consurulmg a ma) Board. I \9a Huben of the members of said E • RESOLUTION, SPECIFICATIONS, ESTIMATE AND PLANS FOR A LOCAL IMPROVEMENT RESOLVED, By the Board of Local Improvements of the City of Evanston, County of Cook, State of Illinois, that a local improve- ment, to Ve paid for by special assessment in accordance with the provisions of Division 2 of Article 9 of the Illinois.Municipal. Code effective July 1, 1961 as.amended, be and the same is hereby or- iginated to be made within said City of Evanston, as fellows': That the roadway of the public alleys in the block bounded. on the north by Emerson Street, on the south by Lyons Street, on the east by Lemar Avenue and on the west by Leland Avenue, in the City of Evanston, County of Cook, State of Illinois, be improved by grading, constructing -necessary storm sewers and drainage structures, and paving to a width of fifteen (15) feet with a Portland Cement Concrete pavement eight (8) inches thick, in accordance with attached Specifications, Estimate and plans. 12/71 ALLEY PAVING SPECIFICATIONS The improvement herein provided to be constructed shall be constructed in accordance with the "Standard Specifications for Road and Bridge Construction', prepared by the Department of Public Works and Buildings of the State of Illinois and adopted by said . department, January 2,.1971, including the Supplemental Specifications thereto, together with the following Special Provisions. In :case of • conflict between said specifications and these.Special_Provisions, said Special Provisions shall take precedenceand shall govern. Said specifications are on file and may be inspected at the office of the Public Works Group Manager, Municipal Building_, Evanston, Illinois. The following terms appearing in said specifications shall be interpreted as follows: "STATE" shall mean "CITY OF EVANSTON.'" "DEPARTMENT OF PUBLIC WORKS AND BUILDINGS" shall mean "PUBLIC -WORKS :GROUP" of the City of Evanston. "ENGINEER!' 'shall mean "CITY ENGINEER" of Evanston. GENERAL: The grade of the center line and outer.edges of the pavement at intermediate points shall be as indicated on attached plans.. The upper surface of the pavement herein provided to be con- structed, when completed, shall conform to the. arc of a circle passing through the respective grade points at the center line _ and at the outer edges of the pavement, and shall be true and symmetrical. EYAMLNATION OF SITE OF WORK: The bidder shall, before sub- mitting his bid, carefully examine the specifications and proposal. He shall inspect in detail the site of the proposed work and familiar- ize himself with all the local conditions affecting the contract .and the detailed requirements of construction. If his bid is accepted, he will be responsible for all errors in his proposal resulting from his failure or neglect to comply with these instructions. PROPOSAL GTIAW. r_rY: Each proposal shall be accompanied by a certified check on a responsible bank in the amount of ten percent (10%) of the gross sum shown in the proposal, or as otherwise provided for in Article 102.09 of the Standard Specifications. The certified checks of the unsuccessful bidders shall be returned upon the award of contract. The certified check of the successful bidder shall be retained only until his bonds are approved and the contract signed. - 1 - 10-71 t WOR MO S COMPENSATION AND PUBLIC LIABILITY: The successful bid- der at the time of execution of the contract shall furnish evidence of an Illinois Workanen's Compensation Policy, and shall also be required to carry full liability insurance protecting the.City of Evanston against all claims for accidents to workmen, other persons or property. • PERFORiMCE.BOND: Within.ten days after receiving notice to the award the successful bidder shall execute, in.quadruplicate, A contract. with the. City of Evanston for the complete performance of all work.there in specified and shall furnish a surety .bond.satisfactory in form to the Corporation Counsel, in the penal sum equal to one-third'(1/3) of the estimated aggregate amount of the contract. The :condition of said bond shall be that the bidder will faithfully keep and perform all the cove- nants and agreements in the manner set forth in the contract: Said bond shall be executed by the bidder as principal and by a reliable surety company as surety. The surety company shall. beduly.authorized by law to execute and deliver such bond in .the State of Illinois and shall be acceptable to the City of Evanston. Said bond shall remain in full force and effect during the life of the contract and shall be held in the cus- tody of the Public Works Director. MAINTaTAI?CE BOYD: The Contractor will be. required to furnish .a maintenance bond to the City.gf Evanston, in a.sum equal to one-third (1/3) of the contract price, guaranteeing improvement against all de- fects arising from poor material or poor workmanship for a period of two.(2) years from the date of acceptance and completion thereof.' SPECIAL EXCAVATION Prior to laying down the pavement thereon, the alleys herein specified to be paved shall be cleaned in a thorough.and workmanlike. manner of all debris .and rubbish such As deteriorated pave- ments, .crossings, box drains, culverts,. trees, stumps, etc. Excavation shall be done in accordance with the requirements of Section 205 of the "Standard Specifications • Such portions of the excavated material as shall be selected by the Engineer shall be hauled by the Contractor, to, and dumped at, locations within the City of Evanston to be designated by the Engineer. PREPARATION OF SUBGRADE: The subgrade shall be constructed so as to have as nearly as practicable, a uniform density throughout its en- tire width. Compression of the subgrade material shall be accomplished by successive operations of a self-propelled tendem roller, weighing not.less than three (3) nor more than five (5) tons. Portions of the subgrade inaccessible to the roller shall be wetted and tamped solidly with a hand tamp weighing not less than fifty .(50) pounds and not to exceed one hundred (100) square inches in area. All soft, spongy or yielding spots.and all vegetable or other such objectionable materials shall be entirelyremoved and the space refilled with sandy soil. Any depressions that appear during the rolling shall be filled with sandy soil and rolled until the whole shall be uniformly compact and firm. - 2 - Rolling shall continue until the subgrade is uniformly compacted, brought to a true. shape and to an elevation uniformly eight (8). inches below the established grade and cross sectien-ol..contour of the top of the pavement. Where the soil in .the alley consists of sand or sandy soil incapable of compaction by rolling or tamping, said compaction shall be accomplished 'by thoroughly flooding the subgrade._ After being prepared in the above manner the subgrade shall be so maintained until the pavement has been placed thereon. • CHECMG ARID ACCEPTANCE: immediately before the pavement is laid, the subgrade shall be.checked by means of an approved template, shaped on the under side to conform to the.lower surface of the finished pave- ment, or by a method of testing approved by the Board of Local Improve: ments._ All high places shall be removed to true grade and any low places filled with sandy soil and rolled or hand tamped until .smooth and firm, The subgrade shall be checked and completed in accordance with these re- quirements for a distance of not less than one hundred (100).feet in advance of the pavement. :If haul=+ng over the subgrade after .it has been finished and checked as specified results in ruts or other such ob- jectionable irregularities, the. --contractor shall.reroll or hand tamp the subgrade and place'it in smooth and satisfactory condition before the pavement is deposited upon it. If the condition of the. subgrade is such that it cannot be placed in satisfactory condition to receive the pavement, paving shall be stopped by the Engineer unless the contractor provides and hauls over.suitable trackways or uses other means for the protection and maintenance of the cubgrade. The cost of subgrade pre- paration and all.excavation and replacement required by these specificat- ions shall be included in the unit price bid for. Special Excavation. SEWER CONNECTIO:dS: All existing connections to the present sewer shall be protected against damage during the construction of this pro- posed improvement. ,Any connections damaged shall be repairedimmediately by the Contractor at his own expense. TRENCH BACKFILL: This item shall consist of furnishing. sand or • stone screenings from beyond the limits of this improvement, placing it where directed by the Engineer and puddling same with water until settle- ment is complete. It shall be used for backfilling trenches, between new retaining walls and existing foundation walls, building foundations, water main excavations and any other cavity which may occur in the area of.this improvement or where the inner edge of a trench is within two feet of the edge of this imprcmement. PORTLAND CEMENT: Portland cement used in Portland Cement Concrete pavement, Portland Cement Concrete Base Course, Portland Cement Concrete Curb, Portland Cement Concrete Sidewalk and Class "V Concrete shall comply with the requirements of Specifications for Air .Entraining Cement for Concrete Pavements, A.S.T.K. Designation: C 175, Type 1-A. All portland cement used in this contract shall be included.in the contract unit price for the several payment items involved. - 3 4-71 FORTIAMD CE1MWZ CONCRETE PA FI-2NT;. Portland Cement Concrete Pave- ment shall be const-,:uct`d inaccordancewith Section 408 of the "Standard Sj:ecifications", except that the final finish shall be obtained by the use of two (2) separate burlap drags, having a double thickness, be at least four (4) feet wide and two (2) feet longer than width of slab under construction. The burlap shall be attached to a bridge riding on pavement forms and be kept saturated while in use. It shall be laid on the pavement surface and dragged in the dir- ection pavement is being laid, with approximately two (2) feet of width in contact with the pavement surface. The burlap drag shall be kept clean and free of hardened concrete, The Engineer may require changes in belting, burlapping and equip- ment to produce desired final surface texture.. Payment for PORT!= CEMM CONCRETE PAVEME U shall be based on pavement cross section with an eight (8) inch uniform thickness. Contract unit price for PO�t'UVID CEMMIT CONCRETE PAVEMENT shall in- clude payment for all materials labor and equipment necessary for the construction of this pavement. LONG , MINAL CENTER JOINTS: The concrete, pavement shall be built so as to have a longitudinal center joint. Said.longitudinal joint shall e:ctend along the center line of the pavement the entire length of the improvement. The joint shall be made by installing a specially. built metal strip which will separate -the concrete. The said strip shall be made of No..18 gauge sheet steed seven and one-half (%2) inches in width, and shall be delivered on the work in ten (10) foot lengths. Said strip shall have a t:..zpezoidal corrugation along the center thereof, two and one-half (2 D inches in vertical dimp-nsien and one (1) inch in horizontal dimension. Adjoining strips shall butt each other tightly and be securely fastened by means of metal clips. Said strip shall extend vertically from the base of the concrete pave- ment to one-half 0),inch below the top of the finished surface of the pavement and shall be held securely in vertical position to straight • alignment, by means of steel pins, left in place, driven vertically' through holes punched through said strip and not to exceed two and one-half (22) feet centers. The pins used shall be three -eights (3/8) inch in diameter and not less than fifteen (15) inches in length. A template shall be used to install the strip vertically and for straightening the alignment.prior to the deposition of the concrete and that the joints shall not be displaced during the finishing operation. Deformed steel tie bars one-half (2) inch in diameter and two and one-half (22) feet in length shall.be placed through the longitudinal joint in openings punched for that purpose, which openings shall be along the center line of said strip so.spaced- as not to exceed two and one-half (22) feet centers. Each bar shall be held rigidly in hor- izontal position during the placing of the concrete by the use of two (2) metal bar chairs driven into the subgrade. - 4 - Furnishing: all material, labor and equipment for installing of said longitudinal joint and .tie bars shall Lot.be paid for directly, but shall be consideredincidental to the construction of the Portland Cement Concrete Pavement. TRANSVERSE EXPANSION JOINTS: Transverse. expansion joints shall be placed throughout the entire improvement across the concrete pavement at right angles to the center thereof and at intervals of one hundred . (100) feet measured along said center line. The expansion joints shall be made by placing and leaving in place prior to laying the concrete mixture for the pavement, a bituminous premoulded joint filler con- forming to the requirsm-erts of Article.715.04 or 715s05 of the "Standard Specifications." Said joint filler shall be three fourths _(3/4) inch in thickness and shall extend vertically..from a point one (1) inch,' below the top of the subgrade to a point one half (Z) inch below the finished grade of the pavement. The intervening space between the top of said joint filler and the finished grade of the pavement shall be filled with Asphalt P.A.F.-3, Load transfer across said expansion joints shall be accomplished by installation of three -fourths (3/4).inch round smooth steel bars eighteen (18) inches long at fifteen (15) inch centers through said joint filler, or by other load transfer device approved by the Engineer. One end of each of said steel bars shal?.be furnished with a.metal or fibre cap to provide one (1) inch of expansion space. Said steel bars shall be maintained rigidly in proper alignment by approved means. All manhole. frames and other fixed objects, with the exception_of frames otherwise mentioned in t'iose specifications, shall be separated from the concrete pavement by a joint filler of the same thickness'arid character as hereinbefore specified for expansion joints, ianich joint filler shall extend through the entire thickness of .the pavement. Said joint filler shall be placed in such a manner as to form a square whose sides will be fifteen (15) inches from the upper outside edges of the frames. • Furnishing all labor, equipment, and materials for installation of said expansion joints. Load transfer devices and reinforcing steel shall not be paid for directly, but will be considered incidental to the construction of the Portland Cement Concrete Pavement. CONTRACTION JOINTS: Sawed contraction joints or other type of contraction joints which may be approved by the Engineer, shall be placed throughout the entire improvement across the concrete pavement at right angles to the center thereof at intervals of twenty-five (25) feet between expansion joints and in accordance with the detail shown on plans. Furnishing all labor, equipment, and materials for the installa- tion of said contraction joints including dowel bar assembly shall not be paid for directly, but will be considered incidental to the con- struction of the Portland Cement Concrete Pavement. - 5 - ? MG AIM PjAC`NG CONCRETE: Concrete shall be mixed and placed in accordance eith the requirements of Section 408, of the "Standard Specifications", insofar as the same may ap?ly. While being placed the concrete shall be vigorously vibrated, by the use of a mechanical vibrating device, and spaded to eliminate voids or honeycomb pockets The concrete shall be especially ke?l spaded arid tamped against forms and bulkheads. The concrete shad be struck off, so that the upper • surface shall conform to and.be sufficiently higher than the contour herein specified for the upper surface of the.finished pavement, to give the specified thickness of pavement herein required. The strike board shall be moved forward with.a combined.longitudinal and transverse motion, and so. ma' ni.pulated , as to tamp the concrete. thoroughly. . A slight excess of .material shall be kept in front of the cutting edge at all times. The entire .area of the pavement shall be struck off and . tamped, so executed as to insure maximum compaction. FINISFINiT.CONCRETE- After the vibrating and the tamping has .been comp?eted, the pavement shall be rubbed smooth of all ridges and de- pressions and brought to a true and even surface by .the use.of wooden_ floats. A split float, shaped on the under side to conform to the contour of the pavement, shall be used for.finishing the concrete on both sides of the longitudinal joints, hereinbefore specified. The edges adjoining the transverse expansion.joint and the form, shall be tooled with an edging tool, having a radius of one -quarter (k) inch - After the floating has been completed, the surface of the pavement shall be tested with a notched straight edge; ten .(10) feet in length.. This straight edge shall be _placed over the transverse joints and be- tween the same at frequent inte;.vals, parallel to the center line of the pavement and moved across from side to side- Any variation in excess of one -eighth (1/8) inch above or below the general established contour of the pavement shall be rubbed with a long handled float.and the irregularities corrected until the straight edge shall show a bearing for its entire length. • Workmen -shall not walk on freshly laid concrete and no one shall be allowed on the concrete after it has been worked into form and shape until it has entirely hardened. The entire surfacing of the concrete pavement shall be done from a bridge, not less than one (1) foot in width which shall not come in contact with the concrete pavement at any point. Two (2) of said bridges shall.be provided for each concrete mixing gang. Two bridges shall be maintained in constant readiness to be immediately moved into position, to provide access for finishing, tooling and edging joints, adjusting filler and refinishing damaged portions of the finished surface. PROTECTION AND CURING; Protection and curing shall comply with the requirements.of Section 408 of the "Standard Specifications". - 6 - STORM SEWF'R.S For the purpose of carrying,off storm.waters from the surface of the pavement herein provided to be constructed, storm sewers of clay sewer pipe or concrete sewer pipe shall be laid as hereinafter, specified. • Said sewers shall be laid in open .trenches in the ground in such manner as to conform to the elevations, lines and grades hereinafter specified. in accordance with the requirements'of Section 603 of the "Standard Specifications,".and shall be designated.as Storm Sewers, Type 3• The pipe used in the construction of said sewers shall be of the typeknown as 1PBell and -Spigot" having an internal diameter of 8 inches. Where required for connections from catch"basins or manhole catch basins, 8" "Y" branch shall be furnished and set in said sewer. The material excavated shall be kept compactly along the. sides of the trenches and shall be backfilled.as soon as practicable in order to occasion the least possible inconvenience to.the public i_n the use of the street or alley as the case may be, but prior to said backfilling and immediately after the laying of the pipes, bank sand shall be carefully packed under, around and over the pipes in such manner as to -compactly fill the trenches to.a depth of twelve (12) inches above the top of the pipes. Where material excavated is not such -as can be readily compacted in said trenches, same shall be replaced with bank sand., as directed by the Engineer., The open and unconnected ends of said sewers shall each be securely closed with a salt glazed, vitrified tile disc and sealed in the manner specified for joints between pipes. BASIS. OF PAYMENT: This work will be paid for at the contract unit • price per lineal foot for Storm Sewer, Type 3, of the diameters specified, measured in place, which prices will be payment in .full for all trench excavation, backfilling with excavated material or bank sand, and for all labor, materials and equipment, including "Y" branches, to complete the installation of the sewer, in place; in- cluding connections to existing sewers. 4-71 1 MZUMO.LV-- CATCH BASINS AND CATCH BASINS Alley Paving • Catch basins shall be constructed of hard burned, sewer brick orconcrete block.. Said catch basins shall be cylindrical in shape having an internal dia- meter of forty-eight (48) inches at the bottom and upward to a point thirty (30) inches below the top of masonry and shall then be uniformly drawn in to twenty- four (24) inches at the top of the masonry, to fit the iron cover hereinafter specified to be furnished and set on the walls of said.catch basins. Said catch basins shall have walls eight (8) inches thick,'for brick, and five (5) inches thick for concrete block. The brick or block used in the construction of said catch basins shall be laid in a mortar composed by volume of one (1) part of Portland Cement and two (2) parts of.clean, sharp sand mixed ,with sufficient clean water to give proper plasticity. The masonry joints shall be neatly pointed and made secure against leakage. Said catch basins shall rest on a concrete bottom, six.(6) inches in thickness, composed of Class X Concrete conforming to the requirements of Section 52 of the "Standard Specifications", or precast reinforced concrete slabs not less than twelve (12) inches in width and four (4) inches in thickness. The said bottom shall be circular in form and the diameter shall be such that the walls of the catch basin shall rest entirely on the base: The elevation of the bottom shall be determined by the Engineer. Said catch basins shall be connected with the sewer now existing, or herein provided to be constructed, as the case may be, in .and along the center line of said alley. Said catch basins shall be connected with the sewer afore- said by means of clay or concrete sewer pipe, having an internal diameter of 8 inches. Said catch basin connection shall start in an 8" "Y" branch • of the quality and laid in the manner required for storm sewers, which "Y" branch shall be set in said sewer at a point eight (8) feet in advance of the vertical axis of the catch basin measured along and in the down stream direc- tion of the sewers. The pipe shall be laid true to line and grade and the con- nection shall enter the catch basin trough the wall thereof at a point not less than two (2) feet above the top.of the bottom of said catch basin. The pipe entering the catch basins through the wall thereof, shall be a half -trap of . 8" internal diameter. Cost of furnishing and installing said half -- trap shall be included in contract unit price for "Catch basins,-. Method of laying pipe and backfilling same shall comply with requirements for "Storm Sewers". Said catch basins shall be equipped and fitted with a circular cast iron frame provided with a tight fitting perforated lid. Said lid shall contain forty (40) perforations of substantially similar size and shape and weigh one hundred twenty (120) pounds. The total area of said perforations shall be forty-three percent (430) of the total area of said lid. Said lid shall be supported upon a circular flange or projection cast upon the inside of said • Alley Paving circular frame, in.such manner as to bring.the.upper surface of.said lid, when in place, to the same elevations as the top of the walls of said circular frame. Said circular frame shall weigh two hundred seventy (270) pounds, be of two piece construction, be fifteen (15) inches high .and have an internal diameter of twenty five (25) inches at the base and.twenty.three (23) inches at the top thereof. The edges of the frame and lid,.where same adjoin each other when in place, shall be machine turned in such manner as to leave said edges smooth and be so shaped that said lid shall tightly fit into said frame so as to permit no play between them. Said catch basin frame herein provided to be furnished and set, shall. rest on the walls of the catch basin and shall be imbedded IT" mortar of the quality herein required for walls in said_ catch basin. All cast iron used in making said cover shall be Gray Iron conforming to the Specifications for Gray Iron Castings, A.S.T.M. Designation: A48, Class 20. BASIS OF PAYMENT: This work will be.paid for_at the contract unit price for "catch Basins" and for 8 inch Storm Sewers, Type-3" which. prices will be payment in full for all excavation, for backfilling with ex- cavated material or with bank sand, and for all labor,.equipment and material, including cast iron frame and lid, to complete the installation of catch basins and connections to sewer. 8-70 The Cast Iron Frartes.and, Lids to ba with the catch basins or manholes to be conptructied under t,.is contract shall be 'Gray Iron Castings con- forming to the Specifications for Gray'sron Castings, A.S.T.M. Designation: A 48, Class 20, and shall con -form: to the. following requirements: TYPE-1 FIR-AZTE,: For all paving surfaces, other than concrete, catch basins • cr manholes shall be eauiDned.arid fitted with a circular cast iron frame, here - "after referred to as a T-,-r-e-1 Frame., and a tight fitting open or closed lid. Said circular frame sh�ll.weigh three hundred ninety (390) pounds, be of one piece constructicn, be ni=e (9) inches high and have an internal diar':ecer of twenty-four (24) inches a; the base and twenty-three (23) inches at the top thereof. The edges of the frame and lid,- where same adjoin each other when in placer shall be machine turned in such manner as to leave said edges smooth and be so shaped that said lid shall tightly fit into said frame. so as to Lamm- t no play between them.. Said frame herein provided to be furnished and=set,- shall rest on the walls.of the catch basin or manhole and shall be imbedded in a.mortar of the quality herein required for walls in said catch basin or manhole. TYPE-5 FP,A.*^�: For concrete pavements, catch basins or manholes shall be equipped with a circular cast iron frame, hereinafter referred to as a Type-5 Frame, and a tight fitting oven or closed lid,. Szid circular -Frame. shall weigh two hundred seventv (270) pounds., be of two niece ccnstruction, be fifteen (15) inches high. and have an internal diameter of� twenty-five (25) inches at the base and twenty-three (23) inches at ine top thereof. The edges of the frame and lid, where same adjoin each other hen in place; _shall be machine turned in such manner as to leave saia edges smooth and be so shared that said lid shall tightly fit into said frame so as to permit no play between them. Said frame herein provided to.be furnished and set,, shall rest on the walls of the catch basin or manhole and shall ;e i.^.bedded in a mortar of the quality herein required for walls in said catch basin or manhole. • OPEN LID: The open lid s-hall contain forty (40) perforations of sub- stantially similar sizeand shape and weigh one hundred twenty (120) pounds. The total area of said perforations shah be forty three per cent (43%) of to total area of said lid. CLOSED LID: The closed lid shall weigh one hundred fifty (150) pounds. BASIS OF PP.YN"'Nr: PIo payTrent will be made for this item where it is in- cluded in the cost of.the structure to which it pertains. Where this item is not included in the cost of the structure, it will be paid for at the contract unit price each for Cast Iron Frames with Cpen or Closed Lids. Cost of in- stalling said frames and lids shall be included in price bid for adjustment or reconstruction of catch basins, manholes or valve vaults upon which they are to be placed. 5-70 r • And that the estimate of the cost thereof, including labor, materials and all other lawful expenses attending the proceedings for making said improvement and the cost of making and collecting the assessment therefor as provided by law, and as made by the Engineer of the Board, amounting in the aggregate to $26,215.20 and itemized as follows: ESTIMATE OF ENGINEER OF BOARD OF LOCAL.IMPROVEMENTS To the Board of Local Improvements. of the City of Evanston: Pursuant to a Resolution of the Board of Local Improvements of the City of Evanston, heretofore adopted, providing that the public , alleys in the block bounded on the north by Emerson Street, on the south by Lyons Street, on the east by Lemar Avenue and on the west by Leland Avenue, in the City of Evanston, County of Cook, State of Illinois, be improved by grading, constructing necessary storm sewers and drainage structures; and paving to a width of fifteen (15) feet with a Portland Cement Concrete pavement eight (8) inches thick. Said improvement to be constructed in detail as specified in aforesaid Resolution.. I herewith submit an estimate of the cost of such improvement as described in said Resolution, including labor., materials and all other lawful expenses attending the proceedings for making said improve- ment and the cost of making and collecting the assessment therefor as provided by law, viz: ESTIMATE OF COST 392 cu. yds. of Special Excavation @$ 5.10 $ 1,999.20 1270 sq. yds. of Portland Cement Concrete Pavement, eight (8) inches thick, laid complete in place @$ 9.95 12,636.50 580 lin. ft. of Storm Sewers, Type-3, 8" diam. @$ 10.00 5,800.00 1 each Manhole -Catch basin with Type-5 Frame and Open Lid, Complete in Place @$435.00 435.00 3 each Catch Basin with Type-5 Frame and Open Lid, Complete in Place @$435.00 1,305.00 Page 2 - Estimate of Cost continued: 304 cu. yds. Trench Backfill @$ 4.50 $.12368.00 11 sq. yds. Pavement Replacement, Entire @$ 18.00 198.00 • 11 sq. yds. Pavement Replacement, Surface @$ 8.50 93.50 Cost of Engineering Services. . . . . . . . . ... 950.00 For Lawful Expenses, etc. ... ... . . . . . . . 1,430.00 TOTAL . . . . . . . . ... . . . . . . . $ 26,215.20 RECAPITULATION . Total Cost of Construction. . . . . . . . . . . $ 23,835.20 Cost of Engineering Services. $ '950.00 For Lawful Expenses, etc. 1,4�,Q.00 2,380.00 TOTAL COST OF IMPROVEMENT. . . .. . . . . . . . . $ 26,215.20 I hereby certify that in my opinion the above estimate does .not exceed the probable cost of the above proposed improvement and the lawful expenses attending the same. Engineer of the Bdard ofiLocal Improvements of the City of Evanston V 12/71 OVERSIZED DOCUMENT (PULLED FROM THIS LOCATION)