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22. Pavement ManagementPUBLIC WORKS DEPARTMENT CUPERTINO Summary AGENDA ITEM a ~- AGENDA DATE May 6, 2008 SUBJECT AND ISSUE Report on Pavement Management, Street Conditions and Preventative Maintenance BACKGROUND The City contracts with the Engineering Firm of Harris and Associates to update the City's Pavement Management Program (PMP) which was completed on March 28, 2008. The PMP provides an objective and scientific management tool to inventory street pavement, assess pavement conditions, record historical maintenance activity, forecast budget needs, and to view the impacts of the funding on the City-wide pavement condition over time. The PMP model for cities is based on standardized software and methodology developed by the Metropolitan Transportation Commission and is used by most cities throughout the bay area. It is also the model approved by the Valley Transportation Authority (VTA) when allocating funds to city projects. All city streets are constructed with asphalt pavement- that deteriorates over time by both traffic loading and weathering. Preventative maintenance on city streets is very important because it can sustain a street's condition over time with relatively low cost as compared to having to reconstruct the entire street. Street reconstruction is at least 30 times more costly than slurry seal and up to 5 times more expensive than an asphalt overlay. The condition of city streets is based on a visual distress rating system resulting in an overall Pavement Condition Index (PCI). This methodology was adopted by cities many years ago to ensure that preventative maintenance is applied through a uniform, objective, and engineering based process. Prior to the adoption of the PMP and PCI methodology many cities were faced with what has been characterized as a "first-come, first served'' process and/or based on who complains loudest and longest. This approach while perhaps satisfying some residents in the short term is neither objective nor fair to the entire city. It also does not effectively and efficiently apply scarce resources to preventative street maintenance. 22-1 DISCUSSION Condition of Cupertino's Street Asphalt Pavement (PCI) The City's average pavement condition is an overall PCI of 69 on a 100-point scale with 100 being a completely new street. The PCI number is misleading as it is often incorrectly read as a "grade" like 69% out of 100%, «~hich in acadenuc terms would usually be called a substandard of even failing grade. PCI does not mean that at all. What it means instead is that the overall condition of Cupertino's street system is in the high range of MTC's designation of Good condition. In fact, the specific condition ranking of Cupertino's 142 miles of streets shows that 92% of the street miles are in Good or Very Good condition requiring little more than periodic slurry sealing or at most a thin asphalt overlay. The balance of 8% is considered to be in poor condition requiring a thicker asphalt overlay. Fortunately, although the PMP estunates that there may be only two tenths of a mile of Cupertino streets that are in very poor condition- that v~~ould require complete reconstruction, the report does not specify any segments of streets to which that might apply. The implication of the overall street conditions in Cupertino in terms of cost is that streets in good, very good or new condition require maintenance that is mostly slurry seal ($2.50 / sq yd), a cape seal ($5.50 / sq yd) or a thin asphalt overlay ($16.00 / sq yd). Very few streets would require a thick asphalt overly ($25.00 / sq yd). As noted above no street segments are identified as requiring complete structural reconstruction ($77.00 - $80.00 sq / yd) and therefore no street reconstruction is proposed by staff. Descr~tion of Street Maintenance Methods As noted above, there are three specific types of work that are employed to maintain the life and condition of a street segment. These are Slurry Seal, Cape Seal and Pavement Overlays. A brief description of each in ascending order of magnitude follows: • Pavement Restoration -This is a small project that is designed to repair particular sections of pavement where it is not required for the entire street to be overlaid or sealed. This work consists of digging out and replacing discrete areas of the pavement that have failed, or are about to fail, structurally. Slurry Seal -This work consists of applying a mixture of hot asphalt oil, a graded aggregate rock, water, and additives to the pavement surface. Slurry seals are used for sealing aged and worn pavements, filling minor cracks, restoring skid resistance and restoring aesthetic appeal. This application serves to protect and preserve the pavement surface and extend its useful life. zz-2 • Cape Seal -This work is the combination of t«~o sealuig and rehabilitation methods, chip seal and slurry- seal. First a chip seal is applied, which is a hot asphalt spray binder «nth a single size aggregate rock nixed into it. It is then followed withui a few days by a slurry seal. While more expensive, this combination method provides an additional measure of pavement surface durability and has more restorative impact on the pavement than a straight slurry. The only downside is that in the period betv,Teen the clop seal and the slurry seal, sometimes the small aggregate comes loose as vehicles travel over it creating a nuisance for drivers. • Pavement Overlay - An overlay consists of placing an additional asphalt pavement layer (generally 2" to 3"} oil top of the existing street surface. This method is typically used it combination with surface nulling, i.e., the grinding of several inches of the existing pavement and either re-using the b -findings v,~ith hot oil additives or replacing it with a new layer of asphalt pavement. This is the most comprehensive resurfacing method used to restore structural integrity. BUDGET NEEDS ANALYSIS Followiig the treatment strategy noted above, the PMP generates a budget needs analysis wlich projects, based on current alit cost estimates, the amiual budget need to maintain the City's streets in a condition that only requires minor preventative maintenance. The intent is to maintain the streets with an overall pavement condition index (PCI) of 70 or more. The 2008 Pavement Management Program update recommends that the City's goal should be to budget a mininum of $1.5 Million annually is expected to increase the PCI and maintain the overall PCI at 70 over a four year period through 2012. The current maiitenance of effort by the City includes an annual General Fund budget of $ 750,000 which when combined with various outside sources of funding such as gas tax, State Transportation Program (STP) funds and others would be expected to keep pace with that recommendation. Staff would, therefore, continue to recommend that same strategy for the five year CIP. The current program as shov~~1 on Exhibit A from all sources includes a total for 2008 of $2,380,000. Proposition 1B Funds are also expected in June 2008 in the amount of $890,000 and staff is recommending another annual amount in the proposed 2008-2009 Capital Improvement Program of $750,000. The total pavement. program for calendar year 2008 is $4,020,000 as follows: Current PM Funds (all sources) $ 2,380,000 Proposition 1B Funding 890,000 PM Funds Reconunended (08-09 CIP) 750.000 Total PM Funding 2008 $ 4,020,000 22-3 PAVEMENT 1VIAINTENANCE PROJECT SCHEDULE Exhibit A outlines the five pavement management projects that are nearing design completion and will be competitively bid beginning in early May 2008. The bulk of the work «-ill be underway by 3uly and will continue through September v,~ith some work continuing to November 2008. One critical objective is to have all work that takes place adjacent to or near a school be completed by the tune schools reopen in the fall. Exhibit B is a listing of all street segments that are proposed to be included in each of the projects for 2008. I~TOte that there are 3 segments ui each of the slurry seal, cape seal and overlay projects listed (asterisk italic) that are designed but not funded and would be added as additional funding becomes available u~ 2009. This report is for the Couzlcil's information and no action is required. Subnutted by: `~. ~. CSC ~ Ralph A. Qualls, Jr. Director of Public Works EXPIII3IT A -Revenues and Expenditures 2008 EXHIBIT B -Pavement Projects 2008 rove for\submission: C~J David W. Knapp City Manager 22-4 EXHIBIT A - Pavctncut Mauagemcnt -Estimated Revenues and Expenditures 2008 Yavcmcnt Managcmcnt Funds Currently Available (P'cdcral S'I'P, Current FY Sc C/O General Fund) $'L,38U,000 Proposition 1B Funds to be Received 890,000 Pavcmenl Management l:unds Recommended 7-1-08 750,000 Total Yavcmcnt M:u~a emcnt i'nnds Available for ZOD8 I'ro'ccts $4,UZD,000 ,. _- __.. I'ro~ ID Pro'cct T c of Worlc Location/lone Cost -t- 10% Cont Advertise Date laid Datc Award Datc A Yavcmcnt Restoration Digvul & reconstruct discrete areas v[ failing Various City-wide $ 220,000 May 7, 2008 June 3, 2008 June 17, 2008 pavement 13 STY (federal) Pavcmcnt Overlay Grind and overlay existing pavcntcnt with new lift of AC McClellan, Linda Vista to I3yntc -I'vttau, Bollinger to Phil 409,000 May 7, 2008 .tune 3, 2008 Junc 17, 2008 C Local 5h-ects Pavcmcnt Mgmt 1 Grind and overlay, slurry seal, cape scat of existing Portions of Tones 3 ~ 10 (two areas cast and west oC13uUb & 1,045,000 May 7, 2008 Junc 3, 2008 July 1, 2008 pavements South of McClellan} D'` Major 5trcets Yavcmcnt Mgmt Grind and overlay, slurry scat, cape seal oI'cxisting pavements Portions v[ Stelling, McClellan, 13andlcy, Valley Grccn 1,026,000 May 7, 2008 Junc 3, 2008 Junc 17, 2008 E* Local 5U•ects Pavement Mgmt 2 Grind and overlay, slurry seal, cape scat of existing Yorlions of7one 8 (area between Stelling & De Arrza, Prospect & 1,320,000 May 28, 2008 July 1, 2008 July 15, 2008 pavements Rainbow) Total Planucrl Pavcmcnt Managcmcnt Cxpcnditm•cs 2008 $ 4,OZD,ODD *These projects will have second phases, D 2 and L 2, respectively, when additional funds arc available in 2009. E~~TT B - Pa~'ement Projects 2008 4iasizoos Proj ID A Project Pavement Restoration d Type of Rrork S Dieout & reconstruct iscrete areas of failing pavement treets L Various Streets. C imits itywide B STP (federal) Pavement Overlay Grind and overlay existing pavement with new lit3 of AC McClellan Road Linda Vista Dr to B}-rne .4ve Tantau Avenue Bollinger Rd to Phil Ln C Loca] Streets Pavement Mgmt 1 Grind and overlay, shirty seal, cape seal of existing pavements Slum Seal Columbus Avenue Marina Rosa Way to Bubb Rd Cape Seal Clarkston Avenue b7intshire Si to Columbus Ave Castleton Street Clarkston Ave to Wilkinson Ave Collinesworth Street R'ill~rtson Ave to Sutherland Ave Coltmbus Avenue Bubb Rd to Vai .Ave Columbus Avenue Linda Vista Dr to Marina Rosa VJay Cranberry Circle Cranberry Dr to End Cranberry Drive Hollv Oak Dr to End Elm Court Bubb Rd to End Flintshire Street Palos Verdes Dr to Clarkston Ave Holly Oak Drive Bubb Rd to Cranbem Dr Overlay Krdch Place Bubb Rd to End Palos Verdes Drive Terrace Dr to Czstleton St Pennington Lane Pumpkin Dr to Woodlark Way n~p}jn Cottrt Pumpkin Dr to End Pumpkin Drive Bubb Rd to Pennington Ln ~ Shannon Court ' Bubb Rd to End Sutherland Avenue Collines+vorth St to Castleton St \%ai Avenue Bubb Rd To Columbus Ave R'tlkinson Avenue Collings+vorth St to Columbus Ave R'oodlazk Wzy Pennington Ln to Cranberry Dr D* ?v4ajor Streets Pavement M,ant Grind and overla}~, slurry seal, cape seal of existing pavements Bandley Drive Stevens Creek Blvd to Valley Green Dr Bubb Road Terrace Dr to McClellan Rd Slurry Seal McClellan Rcad Bubb Rd to SR-BS OC Murn.Svcnvc' Src,~ens Creek Blvd ro A~ereor Dr Bandley Drive Stevetu Creek Bh~d to VaDey Green Dr Cape Seal Valley Green Drive N De .4nza Blvd to Beazdon Dr North Stalling Road vdaterford Dr tc SR-85 Overlay North Stalling Road Stevens Creek Blvd to I-?80 E° Local Streets Pavement Mgtnt 2 Grind and overlay, slurry seal, cape seal of existing pavements Aster Couri Aster Ln to End Aster Lane Waterford Dr to Bamhari Pl Barnhart Place Aster Ln to Gal+vay Dr Donegal Drive Leeds Ave to Sta 17<j6 Slurry Seal Leeds Avenue Sta 1 1+80 to Donegal Dr Rainbo+v Drive Poppy Way to De Anza Blvd South Stalling Road Rainbo+v Dr to Prospect Rd .9sler Lane° Atormm~dV N'OT'ro IZanthax~ Pra.cpacr Hoad'~ Stalling Rd fo Dc An_a Blvd Galway Drive Prospect Rd to Battiltari P) Plum Blossom Drive Primrose Way to Sta 12+18 \Vildflou~er v.'ay Poppy Way to S De Anna Blvd Cape Seal dslerLane° Rainbox~ Dr to Sourlt End .5ster Lane ° N'are,7rord Dr to Normandy if'oy Orange Blossom Drive' Asicr Ln to Primrose R'ay 22-6 1 of 2 E~IBIT B -Pavement Projects 2008 4/1S/?OOS art Place Cral~j•ay Dr to Jamestown Dr gal Drive Sta 17+56 to Primrose R'ay .r Court Poppy VTay to End ctoH~ Dtive Plum Blossom Dr to Prospect Rd Avenue Primrose R'ay to SEa 17+80 Blossom Drive Poppy VJay to Jamestotam Dr ~ R'ay Rainbow Dr to Plum Blossom Dr ese V,'ay Rainbo~+~ Dr to Barnhart row Drive S Stelling Rd to Poppy Way garden Lane Peach Blossom Dr to v,'atersord Dr rford Drive S STelling Rd to Primrose Way astle Drive' Aster Lane [o Rosegarden Ln candy flray'~ AsferLane to Rosegarden Ln 6 Rlnccrnr• AsterLtt to Primrose fl'aP projects will have second phases, D 2 and E 2; respectively, when additional funds are avai]able in 2009. 22-7 2of2 EXHIBIT B -Pavement Projects 2008 4/2S/1005 Proj ID Project T\ e of Rork Streets Litniu A Pavement Restoration Digout R reconstruct discrete areas of failing pavement Various Streets. Cit}M'ide B STP (federal) Pavement Overlay Grind and o+'erlay existing pavement with neyy lifr of AC AcClellan Road Linda \%ista Dr to Byrne Ave Tantau Avenue Bollinger Rd to Phil Ln C Lora] Streets Pavement Memt 1 Grind and overlay, shitty seat, cape seal of existine pavements Slurry Seal Columbus Avenue Marina Rasa 1\'av to Bubb Rd Cape Seal Clarkston Avenue Flintshirc St to Columbus Ave Castleton Sveet Clarkston Ave to \\'illdnson Ave Collines+vortlt Street Rrillanson Ave to Sutherland Ave Columbus Avenue Bubb Rd to \'ai Ave Columbus Avenue Linda \%ista Dr to Marina Rosa A'zy Cranbcay Circle Cranberry Dr to End Cranberr}~ Drive Holly Oak Dr to End Elm Court Bubb Rd to End Flinulure Street Palos \rerdes Dr to Clarkston Ave Holly Oak Drive Bubb Rd to Cranberry Dr Over)zv K.zich Place Bubb Rd to End Palos \%erdes Drive Terrace Dr to Castleton St Pennineton Lane Pumpkin Dr to Woodlark \','ay Ptimpl~n Court Pumpkin Dr to End Ptimplan Drive Bubb Rd to Petutinr_ton Ln Shatmon Court Bubb Rd to End Sutherland Avenue Collin~swmYh St to Castleton St Vat Avenue Bubb Rd to Columbus Ave Vr'illdnson Avenue Collines+vo,-th St to Columbus Ave A'oodlazk Wav Penriineton Ln to Cranbe.~• Dr D* Major Streets Pavement ?\~~t Grind and overlay, shttry seal, cape sea] of existing pavements Handley Drive Stevens Creei: Blvd to Valley Green Dr Bubb Road Terrace Dr to McClellan Rd Slurry Seal ' MrClellan Rnad Bubb Rd to SR-SS OC A9an~.9venru•' .Srcrcns Creek Blr•d m Meteor Dr Handley Drive Stevens Creek Blvd to Valley Green Dr Cape Seel Valley Green Drive N De Anna Blvd to Beardon Dr North Stalling Road H'aterford Dr to SR-BS Overlay North Stcllin¢ Road Stevens Creek Blvd to I-280 E* Local Streets Pavement MVutt 2 Grind and overlay, slurry seal, cape seal of existing pat'entents 4eter Court .Aster Ln to End Aster Lane N'aterfnrd Dr to Barnhart PI Bamhan Place Aster Ln to Gahvav llr Done¢al Drive Leeds Ave to Sta 17~ i6 Slum Sarl Leeds .Avenue Sta l 1-8G to Donc~•al Dr Rainho+y Drive Poppy \\'ay to De .4nza Blvd South Stelline Rnad Rainbo+c Dr to Prospect Rd .4.crcr l.uor' Ah,rnrundr H'ut• rn Roinbuto 1'ru.+lrccr Xuod+ .tircllut~ Rd ro Uc.4n_u Blvd Gal+vey Drive Prospect Rd to Barnhart PI Plum Blossom Drive Primrose N'ay to Sta 12+I S 1\'ildflower Vdav Poppy 1\'ap to 5 De Anna Blvd Cape Seal ~ .9srcr Lune Rmnhnw 1)r ro .South End .9.crer Larre' N'arcrjord Dr to .knrmm7dy N'uy Oranl;c Bluc.com Dror' .9srcr I,n ro 1'rimru.cc H'or 22-8 1 of 2 EXHIBIT B - Pa`'ement Projects 2008 4/18/2D08 art Place Gals+ay Dr to Jamesto~jm Dr al Drive Sta 17+56 to Primrose R'ay r Court Poppy Way to End towv Drive Plum Blossom Dr to Prospect Rd Avenue P:iuuose Way to Sta 11+80 3iossom Drive Poppy Way to Jamesto~am Dr Way Rainbow Dr to Plum Blossom Dr use Way Rainbow Dr to Barnhart ow Drive S Stalling Rd to Poppy R'ay arden Lane Peach Blossom Dr to 1~'atert"ord Dr ford Drive S Stalling Rd to Primrose Way 7sde 1?rive • -Aster Lane to Rose~arden Ln v7dy A'a}'~ Aster Lane io Rose~arden Ln Blossom "' Aster Ln to Primrose IAa t~ *These projects will have second phases, D 2 and E 2, respectively; when additional funds are available in 2009. 22-9 2 ofi 2 \~ '\ ` '' ~' % ~\, ` `- ~ 'fin ~, ~ ~ ' ~ - ~~ __ i - - ~ ~ _ _ t ,~ ~ - - -- - ~ - - ~/ . . ,~ ~, ; ~ ~ _ - ____ -- 29 28 ~ _ ,- . ,tv ~ ; ~ _ - - ~ -1 -- - 23 - -- - ' i __ __ --- _ ~ -___ ~ _ _ ;~~~ - - ~ i I _ n I - ~~ J ~ 1 ~ ,~ :, ~ 7 ~. . ; - 32 -, ~ ~-- _ ~ , ~ w~ ~ - - ,, _ ~~ ~ - { - PVC ~ i - ~ pi ~ ------ ~ - LL ~ ~\ ~.. ,, ~ 31 _ _ ;, __ ~- __ ----- ----~ STEVENS CREEK BLVD -- )~. 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" '`~~`" '~ ~ 7 - 2 NT MANAGEMENT _ -- ' - ~' ---- MAJOR STREETS PAVEMENT MANAGEMENT AND STP ' i ~ - I ~_ I ~ .... I__ 1' ~~ _ ,_ ~_ ,1 ~ ; PV --~ - r_ 1 ~ I - - egen ' ~ f ~~ T~ - L d ',. V ; ~ 7 f I 1 d , 1 1 1 1 :,`_- 13~. ~ - 8 - --~- Cape Seal ~ ~~i 1~ - _~-- 1~ 1~ - ~._ ~ _~.~.~.. Overlay ~ 11 ~; PR SPECT RD= -Slurry Sea{ N --r - ;~ -~ ~ ~ _ _ STP Overlay - a CITYBOUNDARY 22-~ EXHIBITS BEGIN HERE 2008 PAVEMENT MANAGEMENT PROGRAM CITY COUNCIL MAY 6, 2008 PAVEMENT MANAGEMENT PROGRAM . PMS Model - MTC Program Methodology . Pavement Condition Index (PCI) . 90-100 =Excellent . 70-89 =Very Good . 50-69 =Good . Below 50 =Poor PRESENTATION AGENDA . Pavement Management Program/ Methodology/Pavement Index . Maintenance Treatments . Cupertino Street Conditions . Budget Needs Analysis . 2008 Funding . 2008 Projects and Schedule MAINTENANCE METHODS . Pavement Restoration =selected sections dug out and replaced, not entire street . Slurry Seal =Hot Asphalt and additives to seal, fill cracks and protect pavement . Cape Seal =Combination Slurry and Chip Seal using heavier aggregates first with slurry applied after . Pavement Overlay =Complete layer of asphalt pavement (2"~") either straight paving or grind and fill methods 1 PAVEMENT TREATMENTS FOR EACH CONDITION . 90-100 =Excellent : No Action Required . 70-89 =Very Good: Slurry Seal . 50-69 =Good: Slurry or Cape Seal, some thin overlays ^ Below 50 =Poor: Thin or Thick Pavement overlays BUDGET NEEDS ANALYSIS . Current Maintenance of Effort = $750,000 ^ PMP Recommends $1,500,000 Annually over 4 years to keep overall PCI = 70 ^ Historically and in the future with Outside Funding Sources (Gas Tax, VTA, Prop 42, etc.) Cupertino meets or exceeds that amount. ^ Five year trend has gone from 67 to 69 overall . Four years at $1,500,000 or more will bring PCI up to and maintain 70 CUPERTINO STREET CONDITION ^ Total Centerline Miles = 142 (412 Lane Miles) . Overall PCI Total System = 69 ^ Arterial Streets = 76 (34 CL Miles) ^ Collector Streets = 71 (14 CL Miles) . Residential = 67 (93 CL Miles) ^ 55% of Streets =Very Good Condition ^ 35% of Streets =Good Condition ^ 2% of Streets = New or Excellent Condition . i.e., 92% of Cupertino's Streets are in Good or Very Good Condition 2008 FUNDING SOURCES . General Fund (07-08) $ 750,000 . STP (Federal) 409,000 ^ Other (Gas Tax, VTA, etc.) 1,221,000 ^ Subtotal $ 2,380,000 . Proposition 16 890,000 . General Fund (08-09 Proposed) 750,000 . Total 2008 Pavement Mgmt $ 4,020,000 ^ Prop. 42 Funds (9/08) 530.000 .Total All Program Funds $ 4,550,000 2 2008 PRO]ECTS AND SCHEDULE . Pavement Restoration $ 220,000 . STP (Fed) Pavement Overlay 409,000 . Residential Streets I 1,045,000 . Residential Streets II 1,320,000 . Major Streets 1,026,000 . Total 2008 Pavement Mgmt $ 4,020,000 . Prop. 42 Funds (9/08) 530,000 . Total All Program Funds $ 4,550,000 . Schedule: July 2008 -October 2008