HomeMy WebLinkAboutAGENDA REPORT 1993 0908 CC SPC ITEM 08TITEM• T
AGENDA REPORT
CITY OF MOORPARK
TO: Honoroable City Council of
ACTION:
FROM: Ken Gilbert, Director of Public Works
Dirk Lovett, Assistant City Engineer
Y
DATE: August 23, 1993 (CC Meeting of September 8, 1993)
SUBJECT: Authorization to Advertise for the receipt of bids for the Construction of the
Charles Street and Storm Drain and Sidewalk Improvements (Phase II)
BACKGROUND
In the summer of 1991, the City Council considered design options (overlay, reconstruction, etc.)
for the improvement of Charles Street. At that time . anff ..gas directed to proceed with a project
design for the n which retained as many trees as
possible. A pi -rom the Public Works/Facilities
Committee. The I by the City Council on November
6, 1991. 1
The limited fund: the entire project at one time. The
project was, ther jam' truction extended from Moorpark
Avenue to a poit mplete the street and storm drain
improvements be
Phase I construction was publicly bid and awarded to O'Keefe Construction Co. in October 1992.
Phase I construction was completed in April 1993. The construction cost for this work was
$239,687.90
DISCUSSION
A. Project Design
The Phase II storm drain plans include the extension of the 24" reinforced concrete pipe
from Bard Street to Magnolia Street. This drain includes catch basins and appurtenant
laterals to improve collection of the surface run -off. Temporary drainage improvements
will be installed at Spring Road until such time that permanent improvements are
constructed per the City's master storm drain plan.
Street improvements include: new curb & gutter, sidewalk, cross gutters, new handicap
ramps, new driveway aprons, striping, tree wells an root guards, and the relocation and
adjustment of interfering utility structures.
Charles Street
August 1993
Page 2
Similar to Phase I, some key project design elements are discussed in more detail as
follows:
Due to the elevation difference from the north parkway to the south parkway,
different curb heights are proposed. The northern curb will be 8" high and the
south curb will be 6" high. The cross slope of the street will also be different on
the north side than the south side. To provide positive drainage to the gutters from
both the centerline of the street and from the parkways, the cross slope of the north
side of the street will be 1.5% and the south side will range from 2% to 3.4 %.
This is in the range of acceptable practice in such conditions where common
elevations on each side of the street are not feasible.
2. The design attempts to salvage all trees. No trees are proposed to he removed.
Tree wells and mounding of earth around the trees is required where elevations
are a problem. It is also necessary to bend the curb around large trees in front of
640 Walnut Street, 224 Charles Street, and 712 Magnolia Street to salvage the
trees. (Some tree trimming and perhaps even tree removals may be required if
root pruning, required for the improvements, impair the health of the trees.)
3. Sidewalks will meander as necessary to avoid the need to design excessive slope
grading or retaining structures on private property and to avoid existing
encroachments (Wheel chair ramp at 459 Charles Street and retaining walls and
fencing at 484 Charles Street).
Plans and specifications for Phase II will be submitted under a separate item.
B. Fiscal Impact
Project Cost Estimate: The following is a summary of prior actual cost for Phase
I and estimated costs for Phase II.
ELEMENT
ACTUAL
EST.
TOTAL
PHASE]
PHASE II
Design
$ 41,0(x)
$ 15,500
$ 56,500
Construction
$239,7(x)
$276,000
$515,700
Contract Admin & Inspection
$ 33,600
$ 41,000
$ 74,600
Contingency (10 %)
0
$ 33,250
$ 33,250
TOTAL
$314,3(x)
$365,750
$680,050
Charles Street
August 1993
Page 3
2. Project Funding: The Proposed Budget for FY 1993/1994 shows the funding for
Phase I1 of the project as follows:
CDBC $2(x),(xx)
Redevelopment $200,(")
TOTAL $400,(xx)
C. Proiect Schedule
It is anticipated that the construction of the project will commence in October with
completion in approximately three months.
RECOMMENDATION:
Staff recommends that City Council approve the project design plans and authorize staff to
advertise for receipt of bids for the subject project.
082393.M 1