RPVCCA_RDA_SR_2011_02_01_E_PVSouth_Drive_Landslide_DrainageMEMORANDUM
TO:
FROM:
DATE:
SUBJECT:
REVIEWED:
STAFF L1ASON:
CH~RMANLONGANDBOARDMEMBERSOFTHE
RANCHO PALOS VERDES REDEVELOPMENT AGENCY
DIRECTOR OF PUBLIC WORKtfDe:ff)£~
FEBRUARY 1,2011 • .
PALOS VERDES DRIVE SOUTH LANDSLIDE DRAINAGE
GRADING
CAROLYN LEHR,EXECUTIVE DIRECTOR 0.9----
RON DRAGOO,SENIOR ENGINEE~
RECOMMENDATIONS:1)Based on the facts set forth in this report,find that an
emergency exists which will not permit a delay arising from a competitive solicitation for bids
and that the actions taken below are necessary to respond to the emergency;2)Approve
and authorize the Chairman of the Board of Directors to execute a Contract with Mike Drews
Construction Company,Inc.,to remove approximately 1000 feet of vegetation located to the
south of the Palos Verdes Drive South roadway and to accommodate the re-grading of the
drainage path within the Landslide;and 3)Approve and authorize the Chairman of the Board
of Directors to execute a Contract with Hardy &Harper,Inc.to install drainage pipe to the
south of the roadway once the drainage re-grading has been completed within the
Landslide;and 4)Adopt Resolution 2011-_,A RESOLUTION OF THE BOARD OF THE
RANCHO PALOS VERDES REDEVELOPMENT AGENCY,AMENDING RESOLUTION
2010-09,THE BUDGET APPROPRIATION FOR FISCAL YEAR 2010-11,TO INCREASE
THE BUDGET IN THE PORTUGUESE BEND CAPITAL PROJECTS FUND.
BACKGROUND
The Portuguese Bend Landslide is moving at the rate of approximately 7 to 8 feet per year in
the area that is south of Palos Verdes Drive South ("the Road").This is the most active area
of the Landslide.The City Geologist has explained that the loss of the beach,which
previously provided a buttress to the Landslide due to wave erosion,along with the recent
increased rainfall,has accelerated the land movement so that large cracks and fissures
have developed seaward of the Road.The cracks and fissures have affected the existing
drainage system of y"round Corrugated Metal Pipes (CMP)to the point where they no
longer convey runoff from the roadway to the ocean.In fact the ground movement in the
area coupled with the disjointed drainage y"pipe drainage path now allow more water to
enter the Landslide,which exacerbates the land movement.This situation has adversely
affected the integrity and viability of the Road and has increased the amount and cost of the
annual work that the City performs to keep the Road in a useable condition.
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The movement of the Portuguese Bend Landslide also has caused earth to be moved from
the property that is owned by the Redevelopment Agency ("RDA"),which is located to the
south of the road,onto adjacent property to the east,which is owned by the Portuguese
Bend Club ("the Club").For many years,the Club performed remedial grading pursuant to a
permit that was issued by the Planning Commission in 1996,pursuant to the
recommendations of former City Geologist Perry Ehlig.The grading permit allows the Club
to perform remedial grading on an as needed basis in order to maintain specific gradients
identified on an approved grading plan.This action consists of taking dirt that is deposited
on the Club's property by the Landslide and to relocate it onto the RDA Property at a
location determined acceptable by former City Geologist Perry Ehlig.Club represen,tatives
have undertaken these actions to preserve the Club's private road (Yacht Harbor Drive) as
well as to protect the homes that are located on the western side of their residential
subdivision.The Club and City recently performed repairs,using Mike Drews Construction
to relocate 60,000 cubic yards of dirt,pursuant to its grading permit,and in conjunction with
the Palos Verdes Drive South Stabilization project.
The Palos Verdes Drive South Stabilization project used soil that was removed from Bend
Club property as described above and placed it adjacent to the roadway in an effort to help
stabilize the roadway.
The Club is again performing work through their grading permit to reestablish their roadway
and has approximately 20,000 yards of soil that can be used to accomplish the needed
drainage grading work in the area.See map of the area of work,Attachment A.
DISCUSSION
The City Geologist recommends that grading be performed on the RDA's property that is
located to the south of the Road.The purpose of the grading is to fill the cracks and fissures
that are within the existing and newly created drainage paths so water will not enter the
Landslide so easily and to install drainage pipe on the seaward side of the Road to provide a
functional path for the runoff drainage that is generated by Palos Verdes Drive South and to
accommodate runoff from properties to the north.Re-establishing the drainage system will
help remove runoff from the area and ultimately extend the useful life of the roadway.
The stability of the Road is vitally important to the public and to the City's ability to provide
law enforcement and fire suppression services to residents who reside on the south side of
the City,since it is one of the City's main arterials.
The intent of the proposed project is to enhance the stability of the area that was graded last
year,which staff believes will have the corresponding benefit of increasing the stability of
this portion of the Landslide area and of the Road itself.Thus,the proposed project will help
maintain the viability of the major roadway that is located on the south side of the City,which
extends from the eastern boundary to the western boundary of the City.Albeit it is difficult to
estimate the amount of movement (and associated cost of repairs)the Road will be subject
to during anyone year,this project should have the additional benefit of reducing,to some
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extent,the City's annual cost to maintain the Road,which has been approximately $400,000
per year,during recent years.
The Director of Public Works estimates that the RDA will need approximately 20,000 cubic
yards of earth to fill in the cracks and fissures and provide the path on the seaward side of
the Road to re-establish the drainage facility,ultimately enhancing roadway stability.As
discussed above,the Club is in the process of removing approximately 20,000 cubic yards
of earth from the western side of the Club's property,during the grading operation to re-
establish the private road within the Club's boundaries.This soil is being placed back on the
RDA's property and is available to be used to facilitate the grading operation needed to re-
establish the drainage system.~
Environmental requirements include filing a plan with the Regional Water Quality Control
Board,filing a Storm Water Improvement Protection Plan (SWIPP)or a Notice of Intent
(NOI)whichever is determined necessary (estimated cost $2,000),mediating the affected
area against the affects of erosion (hydroseeding the area at an estimated cost of $10,000)
and video taping the area prior to construction (estimated cost of $2,000).Consultants will
be used to accomplish these tasks at an estimated total cost of $14,000.
Due to the immediate need to perform this grading work to fill the cracks and fissures and re-
establish the drainage system which will help stabilize the area and the Road,Staff is
recommending that the RDA enter into a contract with Drews Construction to perform the
grading work that is necessary and to enter into a contract with Hardy and Harper,Inc.to re-
establish the drainage system as recommended by the City Geologist.Drews Construction
has provided a proposal to the RDA to remove the vegetation in the area where the cracks
are located,fill the cracks and fissures and grade the area to accommodate the drainage
pipes for an estimated cost of $39,750.Likewise,Hardy and Harper,Inc.has provided a
proposal to re-establish the drainage system for an estimated cost of $67,000.Because of
the benefits of addressing several different problems by doing all of this work at once,and
the immediate need to provide additional stability to the Road,Staff recommends that the
RDA find by a 4/5 vote that an emergency exists,approve the agreement with Drews
Construction,and authorize the Chairman to execute the contract.
ADDITIONAL INFORMATION
Staff contacted two other contractors to obtain additional bids for the grading work.Hardy
and Harper submitted an incomplete proposal for the required grading in the amount of
$38,475.The proposal was incomplete as it did not including providing the soil that will be
needed to complete the grading and it did not include the cost to remove and dispose of
vegetation.The other company,S.P.Pazargad,did not submit a proposal to Staff.
CONCLUSION
The RDA needs approximately 20,000 cubic yards of earth to fill cracks and fissures,
enhance the stability of the Landslide area and improve the stability of the Road.The Club
has 20,000 cubic yards of dirt available from the private road re-establishment effort.
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Accomplishing both tasks at once is cost effective and efficient and will eliminate hazardous
conditions that are adversely affecting the Road and residents of the City and the
Redevelopment Project Area.Accordingly,Staff recommends that the Agency Board take
the actions recommended by Staff.
FISCAL IMPACT
The total cost of this project is estimated to be $120,750.
Attachment:Map of Affected Area
Budget Resolution
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RESOLUTION NO.RDA 2011-
A RESOLUTION OF THE BOARD OF THE RANCHO PALOS VERDES REDEVELOPMENT
AGENCY,AMENDING RESOLUTION 2010-09,THE BUDGET APPROPRIATION FOR FY1 0-11,TO
INCREASE THE BUDGET IN THE PORTUGUESE BEND CAPITAL PROJECTS FUND.
WHEREAS,Section 3.32 of the Rancho Palos Verdes Municipal Code provides that all expenditures
in excess of budgeted allocations must be by supplemental appropriation of the Agency Board:and
WHEREAS,on July 6,2010,the Board of the Rancho Palos Verdes Redevelopment Agency adopted
Resolution 2010-09,approving a spending plan and authorizing a budget appropriation for FY1 0-11:
and
WHEREAS,grading has become necessary for landslide mitigation to re-establish the drainage
system in the Portuguese Bend portion of the Redevelopment Project Area;and
WHEREAS,the Agency Board has determined that the specific grading and drainage expenditures
should be completed in FY1 0-11;and
BE IT,THEREFORE,RESOLVED BY THE BOARD OF THE RANCHO PALOS VERDES
REDEVELOPMENT AGENCY:
The following adjustment is made to the FY1 0-11 budget:
Increase the Redevelopment Agency's Portuguese Bend Capital Projects Fund budget as follows:
Portuguese Bend #375-3075-461-73-00 Improvements $120,750
PASSED,APPROVED,AND ADOPTED THE 151 DAY OF FEBRUARY 2011.
AGENCY CHAIRPERSON
ATIEST:
AGENCY SECRETARY
State of California )
County of Los Angeles )ss
City of Rancho Palos Verdes )
I,CARLA MORREALE,Agency Secretary of the Rancho Palos Verdes Redevelopment Agency,
hereby certify that the above Resolution No.RDA 2010-was duly and regularly passed and
adopted by the said Board at regular meeting thereof held on June 1,2010.
AGENCY SECRETARY
CITY OF RANCHO PALOS VERDES
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