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Home My WebLink AboutReso 2003-310RESOLUTION NO. 2003-310 RESOLUTION OF THE CITY COUNCIL OF THE CITY OF CHULA VISTA APPROVING THE ADOPTION OF CHULA VISTA CONSTRUCTION STANDARDS CVCS-3 AND 4, RELATING TO TRENCH BACKFILL AND SURFACE RESTORATION WHEREAS, on November 12, 2002, City Council approved Resolution No. 2002-447, which among other things, adopted revisions to the Chula Vista Subdivision Manual and the standards and drawings used in public works construction in the City of Chula Vista; and WHEREAS, CVCS-3 and CVCS-4 were the exception since they related to the restoration requirements for utility trenches within the City; and WHEREAS, CVCS-3 and CVCS-4 were withheld from consideration at that time in order to address a number of concerns expressed by San Diego Gas and Electric (SDG&E) and SBC Pacific Bell regarding the cost and effectiveness of the proposed standards; and WHEREAS, the proposed Chula Vista Construction Standards CVCS-3 and CVCS-4 would require full lane-width grinding and repaying of trenches located longitudinally within higher volume, higher speed four-lane and six-lane roadways to address durability, smoothness (drivability), and aesthetic problems evident with current trench repair methods; and WHEREAS, the proposed standards are necessary to ensure the durability, smoothness and aesthetics of Chula Vista roadways and to minimize the need for future road closures due to failed trench repairs; and WHEREAS, a query of the City's utility permit database between January 2001 and April 2003 showed only one 420 foot-long portion of gas main trench that would have required a full lane-width grind and resurface, at an estimated additional cost of $10,000, if the proposed standards would have been in place during that time period; and WHEREAS, provisions were included in the proposed standards that would give the City Engineer the discretion to modify the standards upon written request prior to permit to issuance based upon the following criteria: (1) existing condition of the pavement; (2) future rehabilitation strategies and schedules; (3) depth of trench (4) other trench work in the area; (5) existence of a comparable trench paving technology or techniques which would achieve the desired mad smoothness and longevity; and, (6) other site-specific conditions and factors deemed by the City Engineer to alleviate the need to cold-plane and overiay the entire lane. NOW, THEREFORE, BE IT RESOLVED that the City Council of the City of Chula Vista does hereby approve the adoption of the Chula Vista Construction Standards CVCS-3 & 4, as shown in Exhibits A and B, a copy of which shall be kept on file in the office of the City Clerk. Resolution 2003-310 Page 2 Presented by Approved as to form by Ann Moore City Attorney PASSED, APPROVED, and ADOPTED by the City Council of the City of Chula Vista, California, this 22nd day of July, 2003, by the following vote: AYES: Councilmembers: Davis, McCann, Rindone, Salas and Padilla NAYS: Councilmembers: None ABSENT: Councilmembers: None ATTEST: Donna Norris, Assistant City Clerk STATE OF CALIFORNIA ) COUNTY OF SAN DIEGO ) CITY OF CHULA VISTA ) I, Donna Norris, Assistant City Clerk of Chula Vista, California, do hereby certify that the foregoing Resolution No. 2003-310 was duly passed, approved, and adopted by the City Council at a regular meeting of the Chula Vista City Council held on the 22nd day of July, 2003. Executed this 22nd day of July, 2003. Donna Norris, Assistant City Clerk EXHIBIT A 24' MIN (PAVE. SECT) SEE NOTE ASPt~T CONCRE'~ TACK ALL EDGES CRUSHED AGGREGATE BASE FULL OEPTH A.C. SEE NOTE 2 SEE NOTES CVCS-4 CRUSHED AOGREGATE BRSE PER GREEN BOOK SECTION . · ' 2~-2.2 '~~KFI~ ~R~ ME.NO 12' MIN (TRENCH WIDTH) MATERLM. TO BE SE 30 OR GREATER TYPE 'U" 1 1/2' ASPHALT CONCRETE (MIN.) ~._J~AVEMENT SECTION ~. Ls~E ~ r,'P[ 'J' 18' TO 2~"-'--~ j ~'----'~8' TO 24' ~ l -6'-I '~-~"~-~ ' I-,,'--.- -~'-1 AC. AN0 ~ (MTN.) (MIN.) ~I~NT ~URRY BACKRLL ~ (s~ NOTe ~o) t oC) o0 -'-I c (m) F'- ~-I *' (mN.) 1~' O~,kx.) ~" (MAX.) TYPE "1- (1)" TYPE "1- (2)" Revised: Ordinal approval date: 2-,3-90 c~ H~O~ Redr~m ~. ARR IOate: CITY ENGINEER Date: II - 7-02 CITY OF CHULA VISTA PUBLIC WORKS DEPARTMENT IT, gNC~ BACEYiU, AND cvcs SURI~ACg RESTOP~TION TYPES "I" EXHIBIT B NOTES: 1. EXISTING ASPHALT CONCRETE SHALL BI CUT AND REMOVED IN SUCH A MANNER SO AS NOT TO TEAR, BULGE OR DISPLACE ADJACEN~ PAVEMENT. EDGES SHALL BE CLEAN AND VER~CAL, N.L CUTS SHALL 8E PARALLEL OR PERPENDICULAR TO STREET CENTERLINE, WHEN PRACTICAL. 2. THE REMOVED PAVEMENT SECfflON SHN. J. BE REPLACED WITH ~ MATERIAL AND ASPHALT CONCRETE. THE MINIMUM THICKNESS OF THE REPLACEMENT ASPHALT CONCRETE (A) SHALL BE: REPf. ACEMENT BASE SHMJ. B~ CRUSHED AGGREGATE BASE 4' MIN. ~-IICK. IF *~GREGA'[[ BASE IS TO BI[ REPLACED WITH ASPHALT CONCRETE, THEN ~ MINIMUM THICKNESS OF ~HE ASPHALT CONCRE~ SHALL BE: ON COMPAC~ BACKFILL - A~(B+I') + ON SLURRY BACKF~ - A-(B+1') + (2C/3] (SEE SLURRY BEOUIREMENI~ I~:LOW) ~r CEMENt TRc~A~ED BASE - A=(B+I') + (2C/3) 3. A TACK COAT OF EMULSIFIED A~T (~S-1N O~ RS-l) SHALL BE APPLIED TO ALL SURf'ACES WHICH WILL BE IN CONTACt WR'H THE REPLACEMENT ASPHALT CONCRETE. 4. ~HE FINISH COURSE FOR RESURFACING SHALL BE LNO DOWN U~NG A SPRE~ER BOX. ALL RESURFACING SHALL BE SEAL COATED WFrH AN Eblt~SJFIED AS~T AND COVERED WEH ~AND. *CHIP SEALING SHALL BE APPUED A~ REQUIRED BY THE Clef. 5. ASPHALT CO~ RE~URFACING TO BE TYPE Ill. C-3 AR4000 FOR TOP COURSE (4' MAX. THICKNESS) (1/2" AD. GATE). IF GREATER ~ 4' U?J~ 2 OR MORE LIFTS. TOP LIFT WITH 1/2' AGGREGATE; LOWER LIFTS WffR 3/4' AGGREGATE. 6. SLOUGHING OF TRENCH UNDER PAVEMENt[ SHALL BE CAUBE FOR REQUIRING ADDITIONAL P^~:MENT AND BA~E. LIMITS OF WORK TO BE DETERMINED BY THE CITY ENGINEER. 7. EXISTING STRIP1NG AND/OR ~ SIGNAl. LOOPS TO BE REPLACED WITHIN 5 WORKING DAYS. 8. IN AN EFFOR~ TO MAiNtAIN A S~'S EXPECTED UFESPAN. RE"tURN THE STREET TO THE SaNE OR SIMILAR CONDitION AS BEFORE THE ~RENCRING T00~ PLACE, AN0 TO MERE CITY OF CHULA VISI'A AND GREENBOOK S~ANDARDS PERTNNING TO ROAD SMOOTHNESS: · IF THE ~RENCH IS LOCATED WITRIN A BIKE LANE. THEN THE ENTIRE BIKE LANE WIDTH SHALL BE COLD-PLANED I-1/2' MINIMUM AND OV~RLAYED 1-1/2' MINIMUM. · IF THE TRENCH iS WITHIN 24' OF A CONCRETE ~-'~RUCTURE (i.e., LIP OF GUTI'ER, VAULT. ETC.). THEN THE AREA BE~EN THE TRENCH AND THE CONCRETE: STRUCTURE SHALL BE COLD-PLANED 1-1/2" MINIMUM AND OVERLAYED 1-I/2" MINIMUM. · IF THE TRENCH IS LOCATED LONGRUDINN.LY WITHIN THE TRAVEL LANE OF A PRIME· MAJOR. OR 4-LANE COLLECTOR STREET; THEN THE ENTRE L~E SHALL BE COLD-PLANE0 1-1/2" MINIMUM AND OVERLAYED 1-1/2' MINIMUM. HOWEVER, THE CFrY ENGINEER MAY. ON A CASE-BY CASE. I~G;IS AND AT HiS/HER DOLE DISCRETION, MODIFY THE REQUIREMENT TO COLD-PLANE AND OVERLAY THE ENTRE LANE BASED UPON THE FOLLOWING CRF~ERIN (1) EXISTING CONDITION OF THE PAVEMENT; (2) FUTURE REHABILITATION STRATEGIES AND SCHEDULES; (3) DEPTH OF TRENCH: (4) OTHER TRENCH WORK IN TH[ AREA; (5) EXISTENCE OF A COMpARA~t.E TRENCH PAVING TECHNOLOGY OR TECHNIQUES WHICH WOULD ACHieVe: THE DESIRED ROA~ SMOOTHNESS AND LONGEVITY; AND. (6) OTHER SI~E-SPECIFIC CONDITIONS AND FAJ~TORS DEEMED BY THE CITY ENGINEER TO ALLEVIATE THE NEED TO COLD-PLANE AND OVERLAY THE EN~IRE LANE, THOSE ENTreES WISHING THE CITY ENGINEER TO CONSIDER MODIFYING THE REQUIREMENT TO COLD-PLANE AND OVERLAY THE ENTIRE [~NE SHA~L, P~OR TO PERMIT ISSUANCE. SUI~MIT A WRFITEN REQUEST FOR SUCH MO01RCATION. SAID WRIT~N REQUEST SHALL INCLUDE A DETAILED DESCRIPTION OF THE PROJECT. THE P~OJEC~ AREA AND THE REASONS WHY THE FULL-LA~E REQUIREMENT SHOULD DE WAIVED. 9. *iF THE STRE~ HAS EXIS~NG PAVEMENT F~RIC. TH~N FA~RIC OF A SIM1LAR QUALITY MU~T BE USE~ IN THE TRENCH REPAIR. TYPE ~1" ONLY (NARROW TRENCH) 10. CEMENT SLURBY I~CKFILL: A. CEMENT SLURRY BACKFILL SHALL HAVE A MAXIMUM SLUMP OF § INCHES. B. CEMENT SLURRY' ~ACKFILL SHALL BE 11~OROUCRLY CONSOUOAT~O TO ENCASE CONDUR'S. TAMPERS OR ~BRATORS SHALL BE USED, C. LEAN CONf.-rE (TRENCH BACKFILL SLURRY) AS SPECIFIED IN SECTION 201-1,1.2 OF THE GREEN BOOK CONCRE]E CLASS lOG-E- 100. D. ALLOW CEMENT SLURRY BACKRLL 24 HOURS MINIMUM TO CURE BEFORE RESURFACING. 11. TYPE '1-1' REQUIRES THE PLACEMENT OF THE PETROTAC TYPE PAVEMFJ~ff FABRIC AFTER THE PLACEMENT OF THE TACK COAT. TACK COAT MUST BE APPLIED OVER PETROTAC. 12. IN STREET WITH FABRIC REINFORCING MATERIAL IN~"TALL[D, SLURRY BACKFILL ~ BE BF~GHT UP TO THE EXISTING FAB~C MATERIAl.. *ITEMS, IF THEY APPLY, TO BE KNOWN AT TIME OF PERMIt, Re.Bed-0 -"spp o. CITY OF CHULA VISTA s-~2-97 Redra~m By: ~R Il)ate: s-4-gs PUBLIC WORKS DEPARTMENT