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Home My WebLink About11/10/1998, C-3 - STREET RECONSTRUCTION/RESURFACING-FALL 1998 SPECIFICATION NO. 9822 council ° °� j 11-10 -24 ac En as REpont �N�c - 3 CITY OF SAN LUIS OBISPO FROM: Michael D. McCluskey,Public Works Direct Prepared by: Daniel Van Beveren,Civil Engineer SUBJECT: Street Reconstruction/Resurfacing-Fall 1998 SpecificationNo.9822 CAO RECOMMENDATION: 1. Approve plans and specifications for"Street Reconstruction/Resurfacing - Fall 1998" prepared by Nichols-Vallerga&Associates. 2. Authorize staff to advertise for bids for "Street Reconstruction/Resurfacing- Fall 1998" and authorize the CAO to award the contract if the lowest responsible bid is within budget. DISCUSSION: The City's Pavement Maintenance Plan(PMP)was adopted by the City Council on April 14, 1998. The key elements of the PMP are the establishment of eight principle areas within the city, and a maintenance plan in which each of these eight areas will receive maintenance over an eight year period. Streets which are classified as arterial or collector,as well as streets located in the central downtown area are not part of this rotation because they require maintenance more frequently. Nichols,Vallerga& Associates(NVA), a private consulting firm specializing in pavement design and maintenance,was awarded a contract for engineering services, per Specification 9217. NVA performed structural testing of selected City streets primarily located in areas 1 and 2. The streets tested were those which had been selected for rehabilitationbased on the City's PMP which utilizes the computer program MicroPaver. NVA conducted the tests using the falling weight deflectometer method which is a nondestructive testing method of determining a street's structural integrity. As part of their contract with the city, NVA issued their findings in a report, "Falling Weight Deflectometer(FWD)Testing and Street Rehabilitation Evaluation of Various Streets", in which test results and design recommendationswere presented. In accordance with Specification 9217,NVA also completed `Plans, Specifications,and Estimate' for "Street Construction/Rehabilitation- Fall 1998". These plans and specifications present the design of street improvements for a portion of the streets included in the above-mentioned NVA pavement testing report. In order to implement the PMP as quickly as possible the streets studied by NVA were divided into those which could be implemented in the Fall of 1998 and those which would require more work and thus be implemented in Spring of 1999. These plans and specifications represent the Fall 1998 project. The design for the Spring 1999 project has not yet been completed. It will include the remainder of the streets in the NVA pavement testing report, and will be designed by newly hired City Public Works Engineering staff. C3 - r Council Agenda Report—Street Reconstruction/Resurfacing Project 9822 Page 2 CONCURRENCES: The Community Development Department has approved this project for environmental clearance. FISCAL IMPACT Estimated Construction Cost Engineer's Estimate $889,556 Contingencies(10%) $89,000 Total $9785556 Balance of Construction Funds Available $2,353,135 ATTACHMENTS: Location Listing Location Map The report"Falling Weight Deflectometer(FWD) Testing and Street Rehabilitation Evaluation of Various Streets" and the plans and specifications for "Street Reconstruction/Resurfacing- Fall 1998"are available in the Council Office. \5955_mm Xsys%Smups\pa rb¢=glpml�lom im9�\98—"-fall 98 soca impmv =M9822 edv.dx 0- 3 - 2- LOCATION LISTING STREET RECONSTRUCTION PROJECT SPECIFICATION NO. 98-22 Calle Joaquin .................................Los Osos Valley to north end Foothill................................................ Santa Rosa to California High................................................... Higuera to Santa Barbara Lincoln ............................................................Chorro to Broad Osos..................................................Santa Barbara to Railroad Buena Vista ..................................................Garfield to Loomis Cazadero .......................................................San Luis to Alisal Grove.......................Wilson to Monterey & Higuera to south end Peach............................................................... Toro to Pepper Toro ...........................................................Peach to Monterey Wilding Lane......................................... Woodland to south end Wilson .............................................................Grove to Grand Fletcher..............................................Leona to Blvd Del Campo Flora ...................................................Southwood to north end Greta Place ................................................ Sydney to Augusta Henry...................................................................... Iris to Ella Jennifer............................................................Ella to Florence JoyceCourt .......................................................................All KnollCourt ........................................................................All RachelCourt ......................................................................All San Marcos Court ...............................................................All SmithCourt .......................................................................All SpringCourt ......................................................................All \1955 morro\sys\groups\pworks\engr\projects\street improvements\9822-tall 98 street improvements location Iist.doc C3 - 3 ^ ^ rw W!NOW MAW ♦� � PRIUN aKINIMWI . w iii�ii�lillllllllll !III iii�iiiiill • Fa 11 StreetReconstruction Project Specification No. 9822 •. ME71N E IDA DATE AY,ITEM # low Memo To: John Dunn, City Administrative O{ erg' L � NCIL ❑CDS rll OtAO ❑i... From: Wayne Peterson, City Engineer 9<AO 01`1 . �ORNEY 'V I•-•i Via: Mike McCluskey, Director of Public Works DaERKIORIG p POLICE C;-.F E3 '-' p RTC DIR CC: City COUnCII O UTIL DIR O PERS DIR Date: November 9, 1998 Re: Your Request—Clarification on timing of Paving-Agenda Item#C-3 We are happy to be proceeding with implementation of the Pavement Management Program. We have produced a paving project for early implementation as the Council's direction was to proceed as rapidly as possible. This, nearly$900,000 project,will go a long ways toward helping rebuild the City s streets. Councilman Romero has suggested to you that the project advertising date be delayed or that the advertising date remain but to hold off on the actual implementation until better weather is available. There are a couple of reasons why staff feels that the project can proceed without taking either of those two steps. This is not a street reconstruction project. In general, street reconstruction projects should not be done during this time of year. Street reconstruction removes the existing pavement, exposing the earth to possible rains and thus ground saturation. When this occurs the street becomes a"muddy mess"and residents are unable to access their homes. Then the project is delayed; waiting for the subgrade to dry out. This can take a considerable amount of time and may not occur until spring. For just this reason, staff only proposed projects that are not of this type. This is a street overlay project; where an inch to inch and a half of asphalt will be ground down adjacent to the gutter and then the entire street overlaid with new asphalt. This type of project will not expose the earth to rains and can be done as long as the street is dry; its surface temperature is above freezing and the ambient air temperature at least 10"C (50"F) per the Cal Trans. Specifications. The weather forecast for this winter is"La Nina". Per the forecasters this means an early and wet rainy season in November and December with virtually no rain the rest of the year. Thus we would anticipate the ability of the selected contractor to perform the work mostly uninterrupted from January on, assuming the temperature conditions are met. Typically, the temperatures here are sufficient to allow paving operations. Some of the best bid results occur in the winter months, when contractors have slowed down from the busy summer season. Thus it behooves us to bid this project now and get the best bid price possible and thus stretch our pavement management dollars as far as possible. The typical San Luis Obispo"processing"time from the date of Council authorization to actual start of construction must be considered. Assuming the Council does approved Agenda Item#C-3 on November 10th, the earliest construction would start would be January 10th. That also assumes that the bids would not exceed the numbers shown in engineers estimate. Should that occur, the earliest start date would be February 16th. Thus, in combination with the weather forecast,we expect the work to be able to commence and proceed to completion without delays or any major disruption. We recommend that Public Works be allowed to proceed to implement the Pavement Management Plan as quickly and as efficiently as possible. As for the road reconstruction projects,we mentioned in the staff report that our new hired staff engineer would be designing and bringing to the Council the second phase of projects for the pavement management program. These projects do include the more disruptive reconstruction projects and are currently being designed. They will be ready for approval so that they can be implemented during the time of year when rains are least likely to occur and we have the best chance of success. I:admin/Jdrldr98-51