Laserfiche WebLink
REQUEST FOR <br />COUNCIL ACTION <br />CITY COUNCIL MEETING DATE: <br />APRIL 15, 2014 <br />TITLE: <br />iNi!Ilk� '. <br />" , , \% <br />CONTINGENCY INCREASE FOR <br />BROADWAY REHABILITATION AND <br />WATER MAIN IMPROVEMENTS FROM <br />CIVIC CENTER DRIVE TO SANTA CLARA <br />AVENUE {PROJECTS 116743 & 1164151 <br />CITY MANAGER <br />RECOMMENDED ACTION <br />CLERK OF COUNCIL USE ONLY: <br />❑ As Recommended <br />❑ As Amended <br />❑ Ordinance on 1" Reading <br />❑ Ordinance on 2o0 Reading <br />❑ Implementing Resolution <br />❑ Set Public Hearing For® <br />CONTINUED TO <br />0X t10 --m: <br />Increase the contract contingency for the Broadway Rehabilitation and Water Main <br />Improvements Project by $650,000, which increases the Christensen Brothers General <br />Engineering, Inc., construction contract to a maximum of $5,383,144.65. <br />2. Authorize the City Manager to execute change orders in an amount not to exceed the total <br />authorized contract. <br />DISCUSSION <br />The recommended action will allow the City to cover cost extras anticipated on Broadway north of <br />171h Street similar to those conditions encountered south of 17th Street. These cost extras are <br />related to underground and pavement conditions on Broadway that were unforeseen. <br />The Broadway Rehabilitation Project consists of upgrades and /or replacement of underground utilities, <br />including the city's water main and water services, followed by street improvements including <br />replacement of curb and gutter, removal and replacement of damaged sidewalks and curb ramps, and <br />reconstruction of the pavement. The work limits on Broadway are between Civic Center Drive and <br />Santa Clara Avenue. <br />On August 5, 2013, the City Council awarded a contract to Christensen Brothers General <br />Engineering, Inc., in the total amount of $4,733,144.65, which included a 10 percent contingency. <br />While potholing the existing utilities in advance of installing the new water main along Broadway, <br />unforeseen concrete pavement was encountered beneath the street, despite coring logs that <br />showed cement treated base at certain locations. Staff also discovered that a sewer trench <br />constructed in the late 1960's was not properly compacted, causing significant voids under the <br />concrete pavement. Consequently, these unforeseen conditions resulted in necessary redesign <br />and additional quantities of asphalt to pave the street. <br />23A -1 <br />