HomeMy WebLinkAboutAGENDA REPORT 2006 1220 CC REG ITEM 10GTO:
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MOORPARK CITY COUNCIL
AGENDA REPORT
Honorable City Council
Yugal K. Lail, City Engineer /Public Works Director
December 13, 2006 (CC Meeting of 12- 20 -06)
SUBJECT: Authorize the City Manager to Amend Consultant Agreement with
Pavement Engineering Inc. for the Preparation of Plans,
Specifications and Cost Estimates (PS & E) for Tierra Rejada Road
Asphalt Concrete Overlay (Project 8011)
BACKGROUND
The pavement condition on Tierra Rejada Road is deteriorating rapidly, and the City is
conducting, on a weekly basis, maintenance of the recurring potholes. Tierra Rejada
Road is in urgent need of rehabilitation and requires construction of an Asphalt Overlay
On June 21, 2006 the City Council adopted Resolution No 2006 -2487 wherein
$100,000 was appropriated for design related work for Tierra Rejada Road AC Overlay
(Project 8011).
DISCUSSION
Pavement Engineering Inc. was retained at a cost of $24,890. and has completed the
pavement analysis for Tierra Rejada Road from State Route 23 to Los Angeles Avenue.
The consultant has completed the pavement analysis and staff has concurred with their
recommendation, (a copy of this report has been provided to the City Council under
separate cover). This recommendation would entail cold milling 2.5 inches of the
existing pavement, removing and replacing areas of base failures with up to 4 inches of
asphalt concrete, and placing a leveling course and 2.5 inches of Asphalt Rubberized
Hot Mix (ARHM) asphalt concrete surface overlay. Additionally, the traffic signal loops
and pavement marking will be replaced. The ARHM is recommended over
conventional asphalt for the following reasons:
city share /public works /everyone /staff reports /2006 /Dec/Tierra Rejada r, "
Honorable City Council
December 20, 2006
Page 2
• It reduces traffic noise by 4 to 10 decibel and by up to 85% in some cases;
• It reduces the overall pavement thickness design;
• It has a long term performance history over 30 years;
• It is very environmentally friendly using up to 1200 tires per lane mile;
• It uses less aggregate and paving asphalt as compared to conventional asphalt;
• It resists reflective cracking, shoving and rutting;
• It provides higher skid resistant; and
• It provides excellent color contrast retaining the black color.
However, the initial cost of ARHM is higher, costing up to $20 more per ton than
conventional asphalt. Based on using approximately 14,000 tons of ARHM, the initial
additional cost is approximately $280,000. The benefits of using ARHM outweigh the
additional initial cost.
To proceed with this action staff will have to hire a consultant to prepare the plans,
specifications and cost estimate.
Staff has received a proposal from Pavement Engineering for $52,735 to prepare the
plans, specifications and cost estimate for this project. To prevent further deterioration
in the pavement and to proceed with this project, staff is requesting authorization from
the City Council to authorize the City Manager to amend the agreement in the amount
of $52,735 with Pavement Engineering to prepare the subject documents.
Staff will also evaluate the feasibility of adding one or more additional bus turn outs on
Tierra Rejada Road to be incorporated into this project design. If determined feasible
such would be added to the design. The estimated design cost for this is approximately
$17,000.
A. Fiscal Impact
Cost Estimate: A preliminary estimate of project costs is as follows:
Element
Design
Construction
Constr Contingency (10 %)
Inspection
Total
Amount ($)
95,000
3,000,000
300,000
90,000
3,485,000
2. Budget The FY 2006/07 Budget, Resolution 2006 -2487 currently provides
funds for the design phase of the project (Project 8011) in the amount of
$100,000, from the TDA Article 8 Fund (Fund 2603) (Local Transportation
Fund [LTF]).
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Honorable City Council
December 20, 2006
Page 3
3. Funding Source: It is the intent of staff to return to City Council after the
completion of design for approval of funding from various sources including
state and federal grants for the construction phase of this project. A grant of
up to $2 per ton of ARHM may also be available from the California Integrated
Waste Management Board for using recycled tires.
B. Schedule
The design is scheduled to be completed by February 2007 and will presented to
the City Council in March for authorization for solicitation. Construction is
scheduled to commence in July.2007.
STAFF RECOMMENDATION
Authorize the City Manager to amend the consultant contract with Pavement
Engineering for $70,000 to prepare plans, specifications and cost estimate for Tierra
Rejada Road AC Overlay.
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