1981 REG MTG MIN MAR 17 - Laserfiche WebLink

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3 0 COMMUNITY SERVICES DIRECTOR'S REPORTS AND RECOMMENDATIONS: Assessment District No. 79-1 Director of Community Services Calvin Wang reported on Assessment District No. 79-1, established October 7, 1980, and consideration of several additional petitions from the various developers and landowners to the north and northeast of the original assessment district requesting the inclusion of their area as a part of Assessment District No. 79-1, to facilitate the joint construction of a major water transmission pipeline from the West San Bernardino County Water Dis- trict and sanitary sewer mains and storm drain facilities. Mr. Wang stated Staff recommends the acceptance of these petitions at this time, direct the Superintendent of Streets to include the petitioned area into the District, and report back for formal action approving the amended District boundary map. Moved by Councilwoman Garcia, seconded by Mayor Gonzales, to approve Staff's recom- mendation as outlined concerning Assessment District No. 79-1. Unanimous vote. Construction & Engineering Planning Files Fogg Street Grade Separation Project Director of Community Services Calvin Wang reported on the Fogg Street Grade Separa- tion Project, advising that Staff has presented this project to the Planning Com- mission at a meeting held March 10, 1981, and the Commission has taken formal action acknowledging the proposed project and has found that this project will not adverse- ly affect the General Plan or environment. Mr. Wang advised that Staff and the consultants plan to attend the Public Utilities Commission hearing scheduled for March 31, 1981, after City Council consideration of this project. Mr. Richard Neill, Structural Engineer with Moffatt & Nichol, Engineers, addressed the City Council, reporting that the Atchison, Topeka and Santa Fe Railroad main- tains three tracks at the present structure, two mainlines and one siding, which must be maintained in service during the construction period. Mr. Neill advised that in order to allow for construction of the underpass, the Railroad will de- velop a shoofly arrangement, temporarily moving their three tracks, which will be done in three phases. Mr. Neill then referred to drawings and exhibits indicating the proposed work to be done. Mr. Neill pointed out that an embankment will be constructed on each side of the present railroad tracks allowing one track to be shooflied to the east and two tracks to the west, and the new structure would then be constructed in phases between the shoofly tracks. Mr. Neill advised the cost of the project depends a great deal on the foundation conditions necessary to support the railroad structure, and present investigation indicates that because of the presence of high ground water and hard -bearing materials just below, driven - type piling support is required, or cast and drill-hole piling. Mr. Willian H. Basham, Principal Engineer with C M Engineering Associates, also addressed the City Council stating the present Fogg Street structure is a narrow width underpass structure with approximately a 12 foot vertical clearance and is both inadequate in width and seriously deficient in height, with the roadway being a narrow, two-lane road, restrictive on traffic and a safety hazard. Mr. Basham advised the new construction will provide widening of the roadway to 4 lanes, curb and gutter and a median area, and provide a minimum 15 foot vertical clearance for the bridge, required for the grade separation structures. Mr. Basham also advised that in order to accomplish this proposed structure, it will be necessary to lower the roadway approximately 5 feet. Mr. Basham continued that drainage facilities must be considered in order to con- vey a major amount of storm runoff that presently passes through the present structure southerly towards discharge into the Santa Ana River. Mr. Basham re- ported a preferred alternate is to divert the major amount of storm water tribu- tary to the underpass prior to entering the depressed roadway and thus requiring pumping to the Santa Ana River discharge, and using this method, the pumping re- quirement is minimized to require only the pumping of storm water immediately tributary to the underpass. Mr. Basham also discussed the relocation of various utilities. Director of Community Services Calvin Wang reported it has been determined the bridge construction costs will be substantially more than what was originally estimated at the time the application was filed with the Public Utility Commis- sion and, based on the new cost estimate, the City's 10 percent share of the total project cost will be approximately $310,000. Mr. Wang stated the City currently MAR 17 1981