Loading...
HomeMy WebLinkAbout6.1-1853Q N Z w D CD CO w M 0 w O J n O N CO N O w rn N LO O N O N Ln 0 a a a� a� X w U 4- 4- _7 n Q) U cn I 0 z w O N O N I O N / U w D O IV GENERAL NOTES: 24 Hour Notice: Prior to the start of any phase of construction, the City Construction Inspection Section shall be given at least 24 hour notice. The Section may be notified at (661) 326-3049. Compaction test note - Compaction tests shall be the responsibility of the developer/ subdivider/ contractor. The number and location of required tests shall be determined by the City Engineer. An open street permit shall be obtained from the City of Bakersfield Public Works Department for any work performed within existing accepted street right of way. Unless secured by a subdivision agreement, security based on an approved engineer's estimate for the work performed within the right of way and insurance as required shall be provided prior to issuance of a permit. Maximum slope ratio from back of sidewalk to face of wall or structure shall be 4:1, except for two feet behind the sidewalk where the maximum slope shall be 2%. Alternatively, the City Engineer may approve curbing behind the sidewalk or other method to prevent erosion onto the sidewalk. Any items in public Right-of-way that are damaged or do not meet current standards set by Public Works will require repairing and/or upgrading as per City Engineer. Underground Service Alert shall be contacted two (2) working days prior to construction. (1-800-612-2444) ASPHALT CONCRETE PAVING NOTES: 1. Asphalt Concrete shall be Type 'A' (modified) for all arterial and collector streets and Type 'B' (modified) for local streets and shall conform to the provisions in Section 39, "Asphalt Concrete", of the Standard Specifications and these Special Provisions. 2. Prior to the addition of asphalt binder, the combined mineral aggregate for Type 'A' (modified) or Type 'B' (modified) Asphalt Concrete shall conform to the requirements of Section 39-2.02, "Aggregate", of the Standard Specifications for % inch maximum, medium grading. 3. Asphalt Binder for Type 'A' (modified) Asphalt Concrete shall be PG 64-10 performance graded asphalt, unless otherwise directed by the City Engineer. Asphalt Binder for Type 'B' (modified) Asphalt Concrete shall be PG 64-10 Performance graded asphalt, unless otherwise directed by the City Engineer. The Asphalt Binder shall conform to the requirements in the table for "Steam -Refined Paving Asphalts", in Section 92-1.02, "Grades", of the Standard Specifications. 4. The amount of the Asphalt Binder to be mixed with the Mineral Aggregate shall be determined by the Contractor in accordance with California Test Method 367 using samples of materials proposed for use in the work. The amount of Asphalt Binder shall be approved by the City Engineer. 5. At least 14 days prior to the start of work, the Contractor shall submit the following for the City Engineer's review and approval: A. A list of aggregate and asphalt sources. B. Documentation verifying that the aggregates to be incorporated in the work conform to the requirements so Section 39-2.02, "Aggregate", of the Standard Specifications and these Special Provisions. Material sieve analysis and sand equivalent test results shall not be older than six (6) months. All other test results shall be no older than one (1) year. C. An asphalt concrete mix design determined in accordance with California Test 367. Laboratory test results on which the design is based shall be submitted with the mix design along with the theoretical maximum density of the design mixture as determined by ASTM D2041. The asphalt concrete mix shall meet the requirements of Section 39-2.02, "Aggregate", of the Standard Specifications and these Special Provisions. If the data submitted shows that the materials are substantially the same as when the design was prepared, the design may be up to three (3) years old. The Contractor shall bear all the costs associated with the asphalt concrete mix design. 6. Where new asphalt concrete pavement is to conform to existing paved surfaces, the existing pavement is to be saw cut in a neat straight line, either parallel or perpendicular to the centerline of the street, and at a minimum distance of one (1) foot from the existing edge of pavement. 7. A prime coat will not be required on non -paved areas to be surfaced prior to the placement of asphalt concrete. However, all other requirements of Section 39-4.01, "Subgrade", of the Standard Specifications shall be met. 8. The area to which Paint Binder has been applied shall be closed to public traffic. Care shall be taken to avoid tracking binder material onto the existing pavement surface beyond the limits of construction. 9. Paving seams shall be located to match designed traffic lane stripe locations unless otherwise permitted by the City Engineer. 10. Intersections and tapered shoulders shall be surfaced as directed by the City Engineer. Additional asphalt concrete shall be placed at road connections and private drive where shown on the plans and as directed by the City Engineer and shall be hand raked, if necessary, and compacted to form smooth, tapered connections. 11. Where the compacted thickness of a layer of asphalt concrete is 0.15 foot or less, paving operations shall be conducted in such a manner that, at the end of each work shift, the length of pavement along the longitudinal drop-off between adjacent lanes is not greater than that which can be surfaced during the following shift of normal paving operations. Additional asphalt concrete shall be placed along the transverse drop-offs on each lane. Such additional asphalt concrete shall be hand raked and compacted to form temporary conforms before the lanes are opened to public traffic. Kraft paper, or other approved bond breaker, maybe placed under the conforms to facilitate the removal of the conforms when paving operation resume. 12. Where compacted thickness of a layer of asphalt concrete is more than 0.15 foot, paving operations shall be conducted in such a manner that the layer of asphalt concrete is placed on all contiguous lanes of the traveled way before the lanes are opened to public traffic. At the end of each work shift, the distance between the ends of a layer of asphalt concrete on adjacent lanes shall not be greater than 10 feet. Additional asphalt concrete shall be placed along the transverse drop-offs on each lane. Such additional asphalt concrete shall be hand raked and compacted to form temporary conforms before the lanes are opened to public traffic. Kraft paper, or other approved bond breaker, may be placed under the conforms to facilitate the removal of the conforms when paving operation resume. 13. Asphalt Concrete shall be compacted to a minimum of 92 percent of the maximum theoretical density as determined by ATSM D-2041. In-place density shall be determined in accordance with California Test 375. 14. If the In -Place Density of any lot of asphalt concrete is less than 92 percent or Greater than 94 percent of the maximum theoretical density, the contractor will be advised that the required relative compaction is not being attained and that the materials or procedures, or both, if needed, are to be adjusted. Asphalt concrete spreading operations shall not continue until the contractor has notified the City Engineer of the adjustment that will be made in order to meet the required compaction. If any successive test after notice is given does not meet the specific range, the asphalt concrete represented by that lot shall be removed and replaced with material that meet the In -Place Density requirements. 15. If the test results for any lot of asphalt concrete indicate that the relative compaction is either less than 90 percent or more than 96 percent the asphalt concrete represented by that lot shall be removed and replaced with material that does meet the In -Place Density requirement. The corrective work shall be at the contractor's expense. 16. The Field Density of compacted asphalt concrete shall be determined by: A. A properly calibrated nuclear asphalt testing device in the field, or B. ASTM D1188 when slabs or cores are taken for laboratory testing. Zinc Stearate may be substituted with paraffin. C. In case of dispute, method "B" shall be used. 17. If the finished surface of the asphalt concrete does not meet the specified surface tolerances, it shall be brought within tolerance by either: A. Abrasive grinding with equipment utilized diamond blades, B. Removal and replacement, or C. Placement of an asphalt concrete overlay. The method will be selected by the City Engineer. The corrective work shall be at the contractor's expense. 18. If abrasive grinding is used to bring to bring the finished surface to specified surface tolerances, additional grinding shall be performed, as necessary, to enlarge the grinding area so that the longitudinal limits of grinding are at a constant offset from, and parallel to, the nearest lane line or pavement edge and the transverse limits of grinding are normal to the pavement centerline. All ground areas shall conform to the requirements in the first paragraph and the last four paragraphs of section 42-2.02, "Construction", of the Standard Specifications. A fog seal coat shall be applied to all finished asphalt surfaces at the contractor's expense. The Fog Seal coat shall be either rejuvenating agent or asphalt emulsion as directed by the City Engineer. 19. Arterial and collector street base material shall be crushed aggregate base (CAB) conforming to Section 200-2.2 of the "Greenbook". Base material for local streets shall be CAB or fine gradation Crushed Miscellaneous Base (CMB) conforming to Section 200-2.4 of the "Greenbook ......... .... which allows up to 50% of the volume to be reclaimed asphalt concrete Portland cement concrete, lean concrete base, cement treated base or a combination of these materials. Other recycled bases shall not be allowed. Aggregate base shall be compacted to a minimum of 95% of maximum dry density. 20. Paving contractor shall grade the paving areas to the following modified Caltrans standard specification section 19-1.03 per the City of Bakersfield: e QRDF ESS / SINGy C/) _p c�F�y mac% c� > r C 80507 S�9TF C / V OF CAS\F APPROVED BV= NICOLAS FiDLER, R.C.E. 61069 PUBLIC WORKS DIRECTOR APPROVAL RECOMN'-NDED BY: U ASSISTANT PUBLIC WORKS DIRECTOR DATE DATE 2f ?�:►2� Immediately prior to placing subsequent layers of material thereon, the grading plane shall conform to the following: CIV ENGINEER IV - DESIGN ENGINEERING DATE A. When asphalt concrete or asphalt concrete base is to be place on the grading plane, the grading plane at any point shall not vary more than 0.04 foot above or below the grade established by the engineer. B. When the subbase or base material (other than asphalt concrete base) is to be place on the grading plane, the grading plane at any point shall not vary more than 0.04 foot above or below the grade established by the engineer. /LL! 2Zv CITY RECORD No. TRAFFIC ENGINEERING DATE File Name: Wes tblu ff Ct Ex Drawn: ES CITY OF BAKERSFIELD, CALIFORNIA PUBLIC WORKS DEPARTMENT Job No.: N/A Engineer: SPECIAL PROJECT EXHIBIT SHEt T No. Dote: Jon. 15, 20 Checked By: NS(�. WESTBLUFF COURT CULDESAC 1 OF 2 0 1 2 3 CONSTRUCT/ON NOTES 1I CONTRACTOR SHALL INSTALL TYPE B CURB AND GUTTER PER CITY STANDARD ST -1. [2 CONTRACTOR SHALL SAWCUT ALONG LIMITS SHOWN, AND REPLACE PAVEMENT STRUCTURAL SECTION PER DETAIL A. F3 CONTRACTOR SHALL INSTALL SIDEWALK PER CITY STANDARD ST -5 WITH CROSS SLOPES NOT TO EXCEED 2% AND PROFILE SLOPE NOT TO EXCEED 5%. GRADE GROUND BEHIND THE SIDEWALK NOT TO EXCEED 4:1 SLOPE TO TIE IN WITH EXISTING NATURAL GROUND AND MATCH SIDEWALK. ® CONTRACTOR SHALL INSTALL SIDEWALK WITH CROSS SLOPES NOT TO EXCEED 2% AND PROFILE SLOPE NOT TO EXCEED 5%. GRADE 5 FEET BEHIND THE SIDEWALK NOT TO EXCEED 4:1 SLOPE. 55 INSTALL RED PAINT ON CURB FOR NO PARKING. © INSTALL STREET LIGHT PER CITY STANDARD ST -23 AND CONNECT TO POWER FROM EXISTING OVERHEAD POWER POLE APPROXIMATELY 225SOUTHWEST. LEGEND XIS TING HINGE P_ ♦ C PA C TED A V4: 1 MAX L OPE MPA C TE TO 900 REL A TI VE OMPA C TION FENCE COMPA C TED FILL AT 4:1 MAX SLOPE IROPOS&9�"A CCESS GATE CITY OF BAKERSFIELD, CALIFORNIA cis BENCHMARK MONUMEN T AT IN TERSEC TION OF PANORAMA DRIVE AND LOMA LINDA DRIVE ELEV= 563.80' CITY STANDARDS SI -7 SCALE: 1 = 20 RIGHT OF WAY SLOP�� 4:1 MAX 1 11_ l.J 1-1 - 1 QUANTITIES EARTHWORK (CUT) 95 CY Score Mork, REMOVE AND REPLACE HOT MIX see Note 7. ASPHALT STRUCTURAL SECTION. Expansion INSTALL CONCRETE SIDEWALK, a e. AND TYPE B CURB AND GUTTER. Standard Detail ST -1. � � - T EXISTING NATURAL GROUND. Curb Ramp per Standard Detail /� 5.0' ST -10. / / tom. - COMPACTED FILL COMPACTED TO 90% / >10.o 0' t}p. o between joints RELATIVE COMPACTION. XIS TING HINGE P_ ♦ C PA C TED A V4: 1 MAX L OPE MPA C TE TO 900 REL A TI VE OMPA C TION FENCE COMPA C TED FILL AT 4:1 MAX SLOPE IROPOS&9�"A CCESS GATE CITY OF BAKERSFIELD, CALIFORNIA cis BENCHMARK MONUMEN T AT IN TERSEC TION OF PANORAMA DRIVE AND LOMA LINDA DRIVE ELEV= 563.80' CITY STANDARDS SI -7 SCALE: 1 = 20 RIGHT OF WAY SLOP�� 4:1 MAX 1 11_ l.J 1-1 - 1 QUANTITIES EARTHWORK (CUT) 95 CY Score Mork, see Note 7. 2.0" deep Weakened Expansion Plane Joint, see Note 7. Curb & Gutter per Joint Standard Detail ST -1. � � - T = - _ _ -T _ _ _ = T = Curb Ramp per Standard Detail /� 5.0' ST -10. / / tom. o / >10.o 0' t}p. o between joints o Expansion Joint II / / 3,0' min. at future I / signalized intersections. Score Mork Combination c Right-of-way 60" Sidewalk dories o a 3 2.0' I_ 1.59 min. 209 2.09 min. - 4:1 ma x. r� 2.0 xmaxm0 r r'. Weakened Plane Joint 4.0" min, *4.5' on oll local streets, unless otherwise directed by the City Engineer. 7.5' on all arterial streets unless otherwise directed by the City Engineer. Variable 6.5' on all collector streets and on all local streets that are adjacent to schools, hospitals, commercial or industrial areas or as /oriable otherwise directed by the City Engineer. NO TES: 1. All workmanship and materials shall conform to the applicable 8. Expansion joint filler material sho// consist of preformed sections of the specifications entitled State of California, strips of durable, resilient compound that conforms to the Department of Transportation, Standard Specifications" hereafter requirements of the Standard Specifications. known as Standard Specifications" current City approved edition. 9. Sections of existing sidewalk being removed for replacement shall 2. A current Street Permit issued by the City of Bakersfield be sawcut at the limits of removal as directed by the City Engineer. The section being removed shall be a min. of 5.0' in length and Public Works Deportment must accompany G11 work within the sawcuts shall align with existing pint or score line. Replacement City right-of-way shall conform in dimension and location to the adjacent existing J. Subgrode shall be constructed true to grade and cross section improvements unless otherwise directed. and compacted to 909 of maximum dry density as determined by 10. Combination sidewalk shot be used at intersections and bas stops ASTW D-1557 to a depth of 6.0" below top of subgrade. on all arterial and collector streets and may be used of cul-de-sacs 4. Concrete for sidewalk shall conform to the requirements of and knuckles on local streets All other uses of combination sidewalk the Standard Specifications for minor concrete (min. cement ore subject to the approval of the City Engineer content of 505 lb/cu )d). Concrete shall contain no additives 11. Any deviation from standard in finish, color, or materials used unless prior approval is obtained from the City Engineer. will require prior approval from the City Engineer. 5. Timber forms shall be surfaced on the side placed next to the 12. Transitions in sidewalk types must be approved by the concrete and shod be not less than 1.5" thick after being City Engineer. surfaced. Forms and subgrade shall be wetted immediately 13. All sidewalk construction shall comply with current prior to placemen' of concrete. requirements for ADA. 6. Concrete surfa, es shill be troweled smooth, edged and Men given a light broom finish. Immediately after finishing, all exposed surfaces shall receive a complete, uniform coating of white pigmented curing compound conforming to the Standard Speci6cctions Concrete surface shall be kept moist until the c ring compound is applied. 7. Expansion piints shol be constructed at each side of structures, of encs of curb returns and at 60' max. intervals. A Weakened plane dints, 2.0" deep, shall be placed at 10.0' intervals with 0.2 i' deep score marks at 5.0' intervals. 5' SIDEWAL< TYPE B CURB & GUTTER INISN a 1J IVI r - M%- I U.JV EXISTING GROUND TO 90% RELATIVE COMPACTION ILL WITH NATIVE MATERIAL AND COMPACT TO 90% RELATIVE COMPACTION File Nome: Westbluff -t FX PUBLIC WORKS DEPARTMENT Job No.: N/A Dote: Feb. 4, 20 0.30' HMA (TYPE A) 0.50' A.B. (CLASS II) 0.70' NATURAL GROUND COMPACTED TO 95%. DETAIL A - PAVEMENT SECTION (TYP) t5 avvn: EJ Engineer: ES Checked QRpFESS/ON <, SINGil q� F2 REG STERED CIVIL ENGII`JEER C80507 CITY OF BAKERSFIELD 1501 TRUXTUN AVENUE 9TF CIVIC- BAKERSFIELD, CA 93301 of CALF REVISIONS No. DA TE DESCRIP TION 1 / 1 2 / / 0.5" rod. -7 10.0" Radius od. a Ini 6.0" 24.0" + 0.5" rod 1-05" rod, e e O� � O I e ° d co N d ° d O e e 120" 24.0" TYPE "B" NOTES: 1. All workmanship and materials shall conform to the applicable sections of the specifications entitled 'State of California, Department of Transportation, Standard Specifications", hereafter known as 'Standard Specifications", current City approved edition. 2. A current Street Permit issued by the City of Bakersfield Public Works Department must accompany all work within the City right-of-way 3. Subgrade for all types of curb and gutter shill be constructed true to grade and cross section and compacted to 90% of maximum dry density as determined by ASTM D-1557 to a depth of 6.0"below top of subgrade. 4. Corcrete for curb and gutter shall conform to the requirements of the Standard Specifications for minor concrete (min. cement content 505 Ib/cu yd). Concrete shall contain no additives unless prior approval is obtained from the City Engineer. 5. Timber forms shall be surfaced on the side placed next to the concrete and shall not be less than 1.5"thick after being surfaced. Forms and subgrade shall be wetted immediately prior to placement of concrete. 6. Concrete surfaces shall be troweled smooth, edged and then given a light broom finish. Immediately after finishing, all exposed surfaces shall receive a complete, uniform coating of white pigmented curing compound conforming to the requirements of the Standard Specifications. The concrete surface sholl be kept moist until the curing compound is applied. 7. Expansion joints shall be constructed at each side of structures, at ends cf curb returns and at 60.0' maximum intervals. Weakened plane joints, 2.0" deep, shall be placed at 1C.0' maximum intervals and at both sides and center of drive approach depressions. Expansion joints may be eliminated for extruded curb and gutter. 8. Expansion joint filler material shall consist of preformed strips of durable, resilient compound that conform to the requi-ements of the Standard Specifications. 9. Sections of exist rg curb and gutter being removed for replacement shall be sawcut at the limits of removal as directed by the ty Engineer. The section being removed shall be a minimum of 5.0'in length and sawcuts shall align mth existing joint or score line. Replacement shall conform in dimension and location to the adjacent existing improvements unless otherwise directed. 10. Sections being replaced may be poured against existing pavement, if in good condition and with prior approval of the City Engineer. Otherwise, the existing pavement shall be scwcut a minimum of 2.0'from the edge of concrete or as directed. Pavement patch shall conform to the requirements of Standard Detail ST -11. 11. Prior to final acceptance, oil new curb and gutter shall be flow tested to detect areas holding water. Any areas holding more than 0.02' of standing water shall be corrected. 11. Type 'B'curb anJ gutter is required on all types of streets unless another type is expressly permitted by the City Engineer. 12. Type "C"curb and gutter may be permitted by the City Ergineer in private subdivisions. PLAN VIEW -3 N. ' l CITY RECORD No. SPECIAL PROJECT EXHIBIT WESTBLOFF COURT CULDESAC SHEET N'0. 2 OF 2 0 1 2 3