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Home My WebLink AboutC26670 - Misc. Drainage ImprvmntsCITY OF PALM DESERT PUBLIC WORKS DEPARTMENT STAFF REPORT Contract No. C26670 REQUEST: Award Contract to AAE, Inc. for Consultant Design Services for Miscellaneous Drainage Improvements (Project 520-05) SUBMITTED BY: Mark Greenwood, P.E. Public Works Director APPLICANT: AAE, Inc. 601 South Valencia Avenue, Suite 250 Brea, CA 92823 DATE: June 28, 2007 CONTENTS: Agreement Scope of Work AAE Proposal Recommendation: By minute motion: 1. Award the contract to AAE, Inc. in the amount of $194,795.00 for consultant design services for the Miscellaneous Drainage Improvements Project No. 520-05; 2. Appropriate $129,863.00 from the Unobligated Drainage Fund 232 to the project account; 3. Allocate $64,932 from the Fund 420 project account; and 4. Authorize the Mayor to execute the subject agreement. Discussion: The City of Palm Desert Public Works Staff has identified seven sites that require drainage improvements. The sites are listed below and are also shown and discussed in the attached proposal: 1. Palm Desert Drive North between Cabrillo and Santa Margarita 2. Sagebrush Drive and Shadow Hills Road 3. Mountain Avenue east of Warner Trail 4. Hovely Lane East at Hemingway Court 5. Roundabout at Silver Spur Trail 6. Buckboard Trail at Portola Avenue 7. Country Club Drive at Liberty Drive Award Contract to AAE, Inc. for Consultant Services for Drainage Design 520-05 Page 2 of 2 June 28, 2007 The estimated construction cost for the drainage improvements is approximately $1,500,000. A Notice Inviting Proposals was advertised and staff solicited proposals for the design services from the professional community. Proposals were received from the following firms: AAE, Inc. ERSC, Inc. RICK Engineering Co. VA Consulting, Inc. Brea, California Hemet, California San Diego, California Rancho Mirage, California. The "Brooks Law" requires professional services to be selected on qualifications and not cost. After a selection is made, the contract is negotiated with the selected firm. If unsuccessful, negotiations would then commence with the next -ranked firm. After reviewing and scoring the proposals, the proposal evaluation team, comprised of City Public Works staff, reviewed and scored the proposals. The unanimous selection of the proposal evaluation team was AAE, Inc., a firm that has extensive experience in drainage design and as a municipal services provider. The local office of VA Consulting is very small and the staff that are proposed to work on the project are actually located in their Irvine office. The cost proposal and final scope of work were negotiated with AAE, Inc. and staff is confident with the value being received. Therefore, staff recommends that City Council, by minute motion, award the contract to AAE, Inc. in an amount not to exceed $194,795.00; appropriate $129,863 from Unobligated Drainage Fund 232 (Zone 1 and Zone 2) to the project account; allocate the remaining $64,932 from the Drainage Fund 420 project account; and authorize the Mayor to execute the subject agreement. Submitted By: Johrp/A. Garcia, P.E. Engineering Manager Department Head Mark Greenwbod, P.E. Director of Public Works Amer Croy Paul Gibson ACM for Dev opment Services CITY COUNCILin afFctor APPROVED DENIED RECEIVED OTHER MEETING DATE CD ?�• ZS AXES : PA LIa7, hn.�Y/ cS /C , 0/0/t-pi/S NOES: Ak7nP- ABSENT : �/.r'i fr hl ABSTAIN: �r4T y / G:\PubWorks\Staff Reports\2007\June 28\02 Awa�_ 4c9RnIFI Irp1G1is ,d ed4/4/441f'Auui y„x�4� S, � , ,rE Improvements 520-05.doc lgina on 1 G W7.t11 C:1 Carlos Ortega City Manager Contract No. C26670 AGREEMENT THIS AGREEMENT, made and entered into this day of 2007, by and between THE CITY OF PALM DESERT, a municipal corporation, hereinafter referred to as "CITY" and AAE, Inc., hereinafter referred to as "CONSULTANT". WITNESSETH: WHEREAS, CONSULTANT is a corporation, the principal members of which are Professional CONSULTANTS duly registered under the laws of the State of California; and WHEREAS, CITY desires to engage CONSULTANT to render certain technical and professional consultant services as set forth in Exhibit "A", City's Scope of Work contained in the Request for Proposals (RFP) and CONSULTANT's Proposal, incorporated herein by reference, in connection with the performance of the Drainage Design (Proiect No. 520-05). NOW, THEREFORE, the parties hereto agree as follows: (1) CITY hereby agrees to engage CONSULTANT to perform the technical and/or professional services as hereinafter set forth. (2) CONSULTANT shall perform all work necessary within the schedules provided herein to complete the services set forth in Exhibit "A" attached hereto and by reference incorporated herein and made a part hereof. Contract No. c26670 (3) All information, data, reports and records and maps as are existing and available from the CITY and necessary for the carryings out of the work outlined in Exhibit "A" hereof shall be furnished to CONSULTANT without charge by CITY and CITY shall cooperate in every way reasonable in the carrying out of the work without delay. (4) CONSULTANT represents that, it employs or will employ at its own expense, all personnel required in performing the services under this Agreement. (5) All of the services required hereunder will be performed by CONSULTANT or under its direct supervision, and all personnel engaged in the work shall be qualified and shall be authorized or permitted under state and local law to perform such services. (6) The execution of this Agreement by the parties hereto does not constitute an authorization to proceed. CITY's Director of Public Works has not authorized CONSULTANT to proceed. (7) The CONSULTANT shall work closely with the CITY's Director of Public Works, or his designated representative, who shall be the principal officer of the CITY. The CONSULTANT shall review and receive the Director of Public Works approval of the details of work as it progresses. The Registered Civil CONSULTANT hereby designated by the CONSULTANT as its representative for supervision of the work required by this Agreement is Ken Putnam R.C.E. No. 11733. (8) The CONSULTANT warrants that he has not employed or retained any company or person, other than a bona fide employee working solely for the consultant, to solicit or secure this Agreement, and that he has not paid or agreed to Contract No. c26670 pay any company or person, other than a bona fide employee working solely for the consultant, any fee, commission, percentage, brokerage fee, gifts, or any other consideration, contingent upon or resulting from the award or making of this Agreement. For breach or violation of this warranty, CITY shall have the right to annul this Agreement without liability, or in its discretion to deduct from the contract price or consideration, or othenivise recover, the full amount of such fee, commission, percentage, brokerage fee, gift or contingent fee. (9) The right is reserved by the CITY to terminate the Agreement at any time upon seven (7) days written notice, in the event the project is to be abandoned or indefinitely postponed, or in the event the CONSULTANT's services, in the sole judgment of CITY, are unsatisfactory or because of the CONSULTANT's failure to prosecute the work with diligence or within the time limits specified or because of his disability or death. In any such case, the CONSULTANT shall be paid the reasonable value of the services rendered, based upon CONSULTANT's standard hourly rates, up to the time of the termination. The CONSULTANT shall keep adequate records to substantiate costs and provide copies of original timecards in the event of termination or suspension. (10) All documents including tracings, drawings, estimates, reports, investigations and computations shall be delivered to and become the property of the CITY. CITY acknowledges and agrees that all plans, specifications, reports and other design documents prepared by CONSULTANT pursuant to this agreement shall be used exclusively on this project and shall not be used for any other work without the written consent of CONSULTANT. In the event CITY and CONSULTANT permit the re- Contract No. C26670 use or other use of the plans, specifications, reports or other design documents, CITY shall require the party using them to indemnify and hold harmless CITY and CONSULTANT regarding such re-use or other use, and CITY shall require the party using them to eliminate any and all references to CONSULTANT from the plans, specifications, reports and other design documents. (11) The CONSULTANT shall comply with all federal, state and local laws, ordinances and regulations applicable to work. (12) No change in the character or extent of the work to be performed by the CONSULTANT shall be made except by supplemental authority in writing between CITY and the CONSULTANT. The supplemental authority shall set forth the changes of work, extension of time and adjustment of the fee to be paid by CITY to the CONSULTANT, if any. (13) In connection with the execution of this Agreement, the CONSULTANT shall not discriminate against any employee or applicant for employment because of race, religion, color, sex or national origin. The CONSULTANT shall take affirmative actions to insure equal employment opportunity and that employees are treated during their employment without regard to their race, religion, color, sex or national origin. Such actions shall include, but not limited to, the following: employment, upgrading, demotion or transfer; recruitment or recruitment advertising; layoff or termination; rates of pay, or other forms of compensation and selection for training, including apprenticeship. This clause shall be included in each related subcontract, if any, awarded by the CONSULTANT. Contract No. C26670 (14) The CITY agrees to pay the CONSULTANT for the work required by this Agreement on the following basis: CONSULTANT shall submit invoices monthly for services performed in the previous month not to exceed the total contract amount of One Hundred and ninety- four thousand and seven hundred and ninety-five dollars ($194,795.00). CITY agrees to pay all undisputed invoices within thirty (30) days of receipt of invoice. CITY agrees to notify CONSULTANT of disputed invoices within fifteen (15) days of receipt of said ir��.lr�a� (15) The CONSULTANT agrees to complete the work and submit the report as described in Exhibit "A". (16) In the event that any judgment is entered in any action upon this Agreement, the party hereto against whom such judgment is rendered agrees to pay the other party an amount equal to the reasonable value of the legal services performed in his or its behalf in such action and that such amount may be added to and made a part of such judgment. (17) This Agreement shall be binding on the successors and assigns of the parties, but the CONSULTANT without written consent of the CITY shall not assign it. (18) The CONSULTANT shall be an independent contractor, not an employee of the CITY. (19) Prohibited interests are as follows: No officer, member or employee of the CITY during his tenure or one year thereafter shall have any interest, direct or indirect, in this Agreement or the proceeds Contract No. c26670 thereof. The parties hereto covenant and agree that to their knowledge no member of the City Council, officer or employee of the CITY has any interest, whether contractual, non-contractual, financial or otherwise, in this transaction, or in business of the contracting party other than the CITY, and that if any such interest comes to the knowledge of either party at any time a full and complete disclosure of all such information will be made in writing to the other party or parties, even if such interest would not be considered a conflict of interest under applicable laws. The CONSULTANT hereby covenants that he has, at the time of this Agreement, no interest, and that he shall not acquire any interest in the future, direct or indirect, which would conflict in any manner or degree with the performance of services required to be performed pursuant to this Agreement. The CONSULTANT further covenants that in the performance of this work the CONSULTANT shall employ no person having any such interest. (20) The CONSULTANT shall indemnify and save harmless the CITY, its officers and employees from and against any liability, loss, cost or expense resulting from any injury or damage to persons or property caused by the negligent acts or omission of the CONSULTANT, its agents or employees, while engaged in the performance of this Agreement. The CONSULTANT shall submit to CITY, prior to the Notice to Proceed is issued, certification of adequate coverage for "errors and omission" insurance in amounts specified in the RFP or approved by the City Attorney. Any such insurance shall not be canceled prior to written notice to and approval from the CITY. (21) In case of conflicts within the contract documents, the document precedence shall be as follows: Contract No. c2667o (a) This Agreement; (b) Exhibit "A", City's Scope of Work in the Request for Proposals (c) CONSULTANT's Proposal of Services, and any written modifications thereto. IN WITNESS WHEREOF, said parties have executed this Agreement the date first hereinabove written. CITY OF PALM DESERT Municipal Corporation AAE, Inc. CONSULTANT Richard S. Kelly, Mayor Date: ATTEST: Rachelle D. Klassen, City Clerk APPROVED AS TO CONTENT: Mark Greenwood, P.E. Director Of Public Works Authorized Signature Date: David J. Erwin, City Attorney CONSULTANT DESIGN SERVICES FOR MISCELLANEOUS DRAINAGE DESIGN PROJECT NO. 520-05 SECTION 1 GENERAL INFORMATION 1.1 1NTRODUCTION The City of Palm Desert (City) requires professional engineering services from Consultant for to prepare design and contract documents (plans, specifications, and engineer's estimates) for the construction of storm drain improvements at various city locations. 1.2 LOCATION OF WORK The City has identified various sites that require storm drain improvements as described in the preliminary report prepared by Engineering Resources of Southern California, dated January 30, 2007. The following sites identified in the preliminary report and finro sites added later during contract negotiations are included in this scope of work: 1. Palm Desert Drive North between Cabrillo and Santa Margarita 2. Sagebrush Drive and Shadow Hills Road 3. Mountain Avenue East of Warner Trail 4. Hovely Lane East at Hemingway Cou�t 5. Roundabout at Silver Spur Trail 6. Buckboard Trail at Portola Avenue 7. Country Club Drive at Liberty Drive The preliminary report may propose possible solutions to the drainage problems at these locations. However, the Consultant will develop alternative improvements to address the drainage issues at these locations. SECTION 2 REQUIREMENTS 2.1 SCOPE OF WORK Tasks and Contract Deliverables: Phase I— Preliminary Engineering Services: Task 1. Field Survey and Document Review • Hold a kickoff meeting with the City staff to review the scope of work and establish the basic design standards for the proposed project. • Obtain and review existing plans, photos, study reports, assessor maps and any other pertinent data from any sources for the project area. 1 • Perform field survey services to establish existing topography and drainage patterns. • Establish cross sections at fifty-foot (50') maximum intervals. • Locate and identify all existing survey monumentation and determine the required action for preservation of those monuments. If preservation is not feasible, Consultant shall have monumentation re- established. • Deliver a copy of the survey field notes to City for record. Obtain Encroachment Permits where necessary, prior to performing these services. • Conduct field review prior and during the design process, in order to confirm the accuracy of any existing drawings, streets, and utility location data obtained as related to the proposed improvements. Task 2. Preliminary Right-of-Way Services • Assemble all existing property descriptions and ownership involved along the proposed alignment of the storm drain improvements where necessary. • Prepare the necessary surveys and identify existing right-of-way, including property lines, property ownership, easements, assessor parcel numbers and access control. • Provide preliminary identification of required ultimate right-of-way. Coordinate with City's staff (if required). • Prepare documentation such as legal descriptions and plats, to support ROW acquisition activities (if required). Task 3. Utilities • Obtain file copy of utility maps within the project limits for existing and/or proposed facilities. • Prepare preliminary plans with the utility notices/questionnaires to be sent to utility companies. Forward copies of notices to the City for its records. • Monitor response of utility notices received; make recommendations for mitigating conflicts. Forward copies of responses to the City for its records. • Conduct coordination meetings as required regarding adjustments, relocations and/or under grounding of existing utilities. • Identify potential utility conflicts and propose design solutions for those conflicts. • Pothole potential critical design elements such as crossings of storm drains, water lines, sewer lines, and dry utilities to determine final proposed design alignments. Task 4. Hydrology Analysis Perform hydrology studies according to City and County requirements. Model the hydraulics of the proposed storm drain system in conformance with City and County design criteria. Prepare the hydrology studies and � the mainline/lateral hydraulics, including catch basin/grate inlet sizing, outlet structure, along with all supporting calculations and hydrology area maps. Task 5. Permits • Obtain the proper clearances and permits from the various jurisdictions and regulatory agencies. Include all local, county, state and/or federal agencies asserting jurisdiction. Obtain Coachella Valley Water District encroachment permits. Task 6. Geotechnical Report • Conduct preliminary geotechnical investigation, including field reconnaissance and review of existing materials reports for the project area. • Prepare a geotechnical investigation report to provide existing soil parameters required for the storm drain design. The report shall include, existing pavement sections thickness, existing ground water depths, and trench design parameters such as temporary stability of excavations, shoring pressures, bearing capacity, pipe bedding, and corrosion potential. Task 7. Preliminary Project Elements • Preliminary conceptual designs indicating recommended project elements for the following items: 1. Mainline storm drain design profiles (complete with utility profiles). 2. Lateral design profiles (complete with utility profiles). 3. Catch basin locations, types and sizes with potential conflicts with existing improvements. 4. Trench sections and pertinent details. 5. Utility impacts, (relocations, adjustments, and/or modifications). 6. Preliminary traffic control concepts bases on storm drain alignments. 7. Preliminary cost estimates for comparison to city construction budgets. Task 8. Storm Water Compliance • The City will require that the Consultant adhere to the latest environmental requirements (NPDES, Water Quality Control Board and other regulatory Agencies) for the proposed improvements. The Consultant shall specify and comply with Best Management Practices. The proposed catch basins are required to mitigate course sediment, trash/debris, and pollutants such as dissolved oils, nutrients and metals. Task 9. Conceptual Plan • Consultant shall provide a{ternatives for City review and approval to address the drainage issues in each area and prepare a conceptual plan of proposed improvements. Phase II — Final Design Engineering Services 3 Task 1. Storm Drain Plans, Specifications, and Estimate • Based on the approved conceptual plans, prepare storm drain improvement plans, specifications and estimates in conformance with City current standards. At the completion of each phase of design, incorporate design review comments from involved parties. • Perform specific design survey for drainage features, existing improvements and other features that may be affected by construction, i.e. traffic signal loop replacement. • Obtain and plot location of all underground utilities and drainage lines and prepare a design for relocation of utilities. Task 2. Traffic Control • Review existing and future traffic data. Prepare the necessary plans for traffic control, construction area sign details, stage construction and detour layout for interim conditions. Task 3. Utilities • Plot existing and proposed utilities in plan and profile view of the construction drawings. • Resolution of conflicting utilities. Phase III - Bid Phase Tasks • Provide final bid sets of the plans and specifications. • During the bidding process remain "on-call" to provide analysis and interpretation of the drawings and specifications. Assist with the preparation of addenda to address concerns and questions of bidders. • Attend pre-bid meeting. Phase IV - Construction Phase Tasks • Attend preconstruction meeting. • Review and approve all shop drawings and submittals. • Furnish construction stakes for the storm drain improvements. Replace all existing monuments in accordance with current City and State Map Act requirements. • Provide consultation during construction including construction requests for information. • Prepare "As-built" drawings from record information provided by the contractor Format of Deliverables: • All final approved plans shall be provided on "D" size Mylar as well as three sets of blue lines. • All final approved plans shall be provided on a CD disk in an Auto CAD 2000 format. • All other approved documents, including the contract specifications, shall be provided on a CD disk in Microsoft Word 2000 or later version for Window format as well as three printed sets. • All project scheduling including a time schedule for the design and construction phases shall be provided in Microsoft Project format. 4 Special Proiect Reauirements: • City requires the design to meet all applicable permit requirements of the affected agencies, and be in accordance with the City of Palm Desert, and Coachella Valley Water District design requirements, the latest edition of the Standard Specifications for Public Works Construction (the "Greenbook") and with Caltrans Standard Specifications and Standard Plans where applicable. • City Standard Drawings shall be utilized for all street improvement design, except where Riverside County, Caltrans Standards or Coachella Valley Water District design requirements are required, and shall take precedence. Storm drain facilities shall be in accordance with the specifications of the Riverside County Flood Control and Water Conservation District. • Affected Agencies and Utilities - This project may impact Agencies other than the City of Palm Desert. Therefore, all requirements such as, but not limited to; design criteria, standards, permits, etc., of these outside Agencies must be considered and fulfilled in the design of this project. This project affects the following Agencies: 1. City of Palm Desert 2. Coachella Valley Water District 3. Southern California Edison 4. Southern California Gas 5. Verizon 6. Time Warner Cable Companies Proiect Coordination, Meetinqs and Presentations: • The Consultant shall prepare monthly status reports to update the City on the progress to date; work to be accomplished in the next period and potential problems of a technical nature or forecasted budget schedule requirement. The Consultant shall attend meetings as requested to update the involved parties on the status of the project. The Consultant shall be responsible for coordinating any subconsultants employed, such that they function as team members indistinguishable from direct employees of the Consultant. The Consultant shall also coordinate with other Consultants to the City who may be required for acquisition, relocation, legal advice, or other services. 2.2 SCHEDULES The Consultant shall prepare schedules for review and approval by the City for the completion of design and construction. City of Palm Desert Consultant Services for Drainage Design Project Number 520-05 June 12, 2007 AAE Headquarters: 601 S. Valencia Ave., Ste. 250, Brea, CA 92823 Tel: 714.940-0100 Fax: 714.940.0700 PROJECT - Highway 111, 74-000 Block of Palm Desert Drive North – Highway 111 drainage impacting retail business in 74-000 block of Palm Desert Drive North, west of Santa Margarita Avenue. Problem: Existing dry well in parkway median between Highway 111 and Palm Desert Drive North – does not have capacity to hold and percolate drainage from south side of highway. The City provided “Preliminary Report on Miscellaneous Drainage Issues on 1/30/07” recommended installation of an underground storm drain from existing dry well eastward in Palm Desert Drive North to Santa Margarita Way, thence northerly in Santa Margarita Way to the double intersection with De Anza Way and Ramona Way. At the intersection a dry well would be installed. Any overflow of that dry well would flow into the gutter of Ramona Way where it could surface flow to Deep Canyon Road where a City Storm Drain exists. AAE concurred with the Report plan based on given information, but AAE stated that, if given the design contract, it will design the storm drain project to mitigate the immediate problem and possibly provide a near permanent non-nuisance water/risk-free solution. At the field review on May 25, 2007 with City staff headed by John Garcia, City Department of Public Works Engineering Manager, information was supplied to AAE on the existing south to north draining Deep Canyon Road 60” diameter storm drain and an 8 foot-long 24” diameter stub installed thereon facing westward to Palm Desert Drive North. The stub is at about 11 foot depth per plans provided by city. A discussion in the field was made of several alternatives for the drainage project to take advantage of the existence of the Deep Canyon Road drain for a permanent solution. There appeared to be several conflicts with the possible eastward extensions of the planned storm drain in Palm Desert Drive North to connect to the 24” stub drain. To circumvent the gas station and traffic signal facilities, it would appear that to install the drain pipe would necessitate going out into a right-turn lane and a bus stop area of Highway 111. AAE hereby submits three alternates as follows: Alternate A: Modify existing dry well on Palm Desert Drive North and install an underground storm drain pipe eastward to a connection with the 24” stub drain at Deep Canyon Road including an alignment through the existing right-turn lane and bus stop area. The length of the drain would be approximately 1,060± feet. The size of the new drain pipe would match at the beginning the size of the existing drain which under crosses Highway 111 from south to north to a terminus in the existing dry well with the overall diameter of the drain to be determined by a hydrology/hydraulics design and alignment survey. The preliminary estimated construction cost is $318,000. Alternate B: Modify existing dry well on Palm Desert Drive North and install an underground storm drain pipe eastward in Palm Desert Drive North to Santa Margarita Avenue, thence northward in Santa Margarita Avenue to north curb of Ramona Way where a dry well would be constructed. The estimated construction cost is $322,500 for approximately 1,230± feet of storm drain of a size to be determined by a hydrology/hydraulic design and alignment survey. Alternate C: Modify existing dry well on Palm Desert Drive North and install an underground storm drain pipe eastward in Palm Desert Drive North to Santa Margarita Avenue, thence northward in Santa Margarita Avenue to Alessandro Drive, thence eastward in Alessandro Drive to Deep Canyon Road and connection to the Deep Canyon Road drain. There is an existing 18-inch stub facing into Alessandro Drive. The size of the drain pipe would initially match the size of the existing drain which under crosses Highway 111 from south to north to a terminus in the existing dry well with the overall diameter of the drain to be determined by a hydrology/hydraulics design and alignment survey. The estimated construction cost is $327,500 for approximately 1,310± feet of storm drain pipe. The design of the drain pipe for each of the alignments would include catch basins and manholes spaced and located to meet standards of the City and the Riverside County Flood Control and Water Conservation District. PROJECT - Sagebrush Drive and Shadow Hills Rd. – Problem is the local north flowing drainage area in the vicinity of the intersection of Sagebrush Drive and Shadow Hills Road present outlet is a dry well with any overflow going across private properties toward Highway 111 east of Shadow Hills Road. The City provided “Preliminary Report on Miscellaneous Drainage Issues of 1/30/07” recommends two solutions. The first solution is to install an underground drain pipe from the dry well area northward under walled private properties toward the parking lot of the Best Western Hotel parking lot. Apparently there is a drain in the parking lot that discharges to an unknown location. The second solution is to construct a larger dry well on Shadow Hills Road and make some surface improvements on the private properties to facilitate the drainage. There is no reference in the Report that the City has a drainage easement across the private properties or the right to use the Best Western drain pipe. AAE assumes the Best Western drain discharges to the Highway frontage road on the south side of Highway 111 where the runoff ponds. AAE states in its SOQ to the City that should AAE be given the consultant design contract, AAE will look further into a more permanent solution including possibly a drain undercrossing of Highway 111 along with a drain in Shadow Hills Road to Highway 111. At the field review on May 25, 2007 with City staff headed by John Garcia, City Department of Public Works Engineering Manager, information was supplied of the pending redevelopment of the existing private property at the southeast corner of Highway 111 and Deep Canyon Road that could allow the City to drain by underground drain this area of the Shadow Hills Road neighborhood to the existing 60” diameter storm drain in Deep Canyon Road. Deep Canyon Road is the next street to the west of Shadow Hills Road. A discussion in the field was made of several alternatives for the drainage taking advantage of the possible redevelopment of the southeast corner and the existence of the storm drain in Deep Canyon Road. AAE hereby submits two alternatives as follows: Alternative A: Construct in place of the existing dry well on Shadow Hills Road at Sagebrush Drive a storm drain catch basin and install an underground storm drain pipe in Sagebrush Drive to the south frontage road of Highway 111 and thence an underground storm drain pipe to a connection with the existing 18” diameter stub on the Deep Canyon Road drain which terminates at the southeast corner of the intersection of Highway 111 and Deep Canyon Road. The size of the new drain pipe would be subject to a hydrology and hydraulics analysis and alignment survey. The approximate length of the new drain would be 1,100 ± feet and the construction cost is estimated at $220,000 assuming a maximum 24” diameter drain pipe. This project work would also include restoration of the private properties to remove remnants of the prior drainage course across the private properties. Alternative B: The same work would be done as Alternate A, except that the new drain would extend northward to a point where it can turn and run westward across the redeveloped southeast corner property to a connection with the 60” drain in Deep Canyon Road in a new manhole. The length of the new drain would be approximately 980 feet, the length being dependent on the western alignment available by easement across the redeveloped property. The size of the drain would be determined by a hydraulic/hydrology analysis and an alignment survey. This project work would also include restoration of the private properties to remove remnants of the prior drainage course across the private properties. The estimated construction cost is $200,000. The decision on the use of the easement route over the property planned for redevelopment will be predicated on the timing of the development. PROJECT - Mountain View Avenue East of Warner Trail – No outlet for local drainage for Mountain View Avenue east of Warner Trail. The City has constructed dry wells for existing drainage sumps along Mountain View Avenue and Latisha Lane. The sumps, due to surface grate clogging by debris and age with related soil consolidation, apparently are no longer effective in percolating drainage. The City provided “Preliminary Report on Miscellaneous Drainage Issues of 1/30/07” recommended two alternatives, namely 1) deepen the existing wells and rework soil to improve percolation, and 2) construct an underground storm drain pipe in Mountain View westerly to Warner Trail and then northerly to a connection at Delaware Place where there is an underground storm drain. AAE recommends the use of a storm drain installation in Mountain View Avenue as a permanent solution. Following the field review of May 25, 2007 led by John Garcia, the Public Works Department Engineering Manager, where the existing storm drain terminus in Warner Trail was indicated as being at Texas Avenue northerly of Delaware Street. After the field review, AAE re-drove Warner Trail and ‘D’ Drain Manhole covers were present from Texas Avenue to southerly of Robin Road. It would appear that there is an existing underground storm drain in Warner Trail at Mountain View Road. This information will need to be verified by a search of City records. Latisha Lane, between Mountain View Avenue and Delaware Place, also has several low sump areas serviced by dry wells. By adding a lateral to the Mountain View Avenue proposed drain, these low areas can also be served permanently. AAE, therefore, provides the following two alternatives with an addition possible lateral in Latisha Lane northerly of Mountain View Avenue. Catch basins and manholes would be included as part of design pursuant to City and Riverside County Flood Control and Water Conservation District standards. Alternative A-1: Construct an underground storm drain from two existing dry wells in Mountain View Avenue westerly to Warner Trail and thence northerly in Warner Trail to a connection at Texas Avenue to the existing drain. Possibly add a lateral in Latisha Lane as Alternative A-2. The statistics would be: Length Estimated Construction Cost Alternative A-1 2,200 + feet $385,000 Alternative A-2 2,700 ± feet $435,000 The drain would be sized based on a hydraulic/hydrology study and an alignment survey. Alternative B-1: construct an underground storm drain from two existing dry wells in Mountain View Avenue westerly to a connection to the “existing” storm drain in Warner Trail – possibly add a lateral in Latisha Lane as Alternative B-2. The statistics would be: Length Estimated Construction Cost Alternative B-1 1,250 feet $218,750 Alternative B-2 1,750 feet $268,750 The storm drains of Alternatives A and B would be designed by use of a hydraulics/hydrology analysis and an alignment survey. The properties fronting on Latisha Lane are presently vacant. So the lateral to the existing dry wells on the Lane could be deferred pending their development. PROJECT - Hovley Lane East at Hemmingway Court – Standing water in gutter on north side of Hovley Lane East at Hemingway Court and undersized under crossing storm drain from catch basin at north side of street to catch basin at south side of street. The City provided “Preliminary Report on Miscellaneous Drainage Issues of 1/30/07” recommended rebuilding of two catch basins to improve intake capacity and to increase dry well capacity. During the field review of May 25, 2007 led by John Garcia, City Public Works Department Engineering Manager, there was no discussion of the existence of dry wells at this location. It appears that the two catch basins are to facilitate the transferring of runoff from the north side of Hovley Lane to the south side. Apparently, the under crossing drain pipe does not have the capacity to handle the runoff transfer. From the south side catch basin runoff can proceed onto the Coachella Valley Water District plant yard on its eventual path to the Whitewater Riverbed. The secondary problem at his location is that runoff from east of Hemingway Court crosses east to west at the intersection with Hemingway Court and is a nuisance because of the rather flat grade of the gutter at this location. AAE, in its SOQ, indicated a general concurrence to remodel the two catch basins and the transfer drain. Also, AAE recommends that a catch basin be installed in the north curb east of Hemingway Court and an underground drain to bypass underground the water flowing across the gutter at the intersection. The total length of the storm drain replacement and new work across the intersection with Hemingway Court is estimated at 260 feet. Also, there would be two catch basin remodels and one new catch basin at a total estimated construction cost of $70,000. All design work would be done pursuant to standards of City and Riverside County Flood Control and Water Conservation District. PROJECT - Roundabout and Silver Spur Trail – Drainage discharge from streets above Roundabout that drain through under drains into a collection box and then onto west end of parkway of Silver Spur Trail from which it flows slowly out into south unimproved gutter of landscaped median divider between eastbound and westbound lanes of Silver Spur Trail. The water flows in the gutter area southward about 1/4 of the distance to Sun Corral Trail whence it crosses over to the south edge unimproved gutter of Silver Spur Trail and flows to a catch basin at Sun Corral Trail. The water flowing down Silver Spur Trail, besides being in a near stagnant state because of the flat grade of the concrete discharge drain outlet of the collection box, represents a nuisance at the collection box and along Silver Spur Trail and has contributed to severe pavement deterioration of the eastbound pavement of Silver Spur Trail. The City provided “Preliminary Report on Miscellaneous Drainage Issues of 1/30/07” recommended reconstruction of the invert of the concrete channel downstream of the collection box to provide a steeper grade with resultant increased velocity of the drainage flow. AAE recommends that the discharge channel for the collector box be rebuilt to provide an increased downhill grade and a concrete gutter with curb be installed downstream to get the water runoff away from the collector box area. The diverter curb in the collector box channel would also be changed to allow greater velocity flow downhill. The planned concrete curb and gutter for the median would extend downhill to the approximate 1/4 point where the street pavement warps toward the south, which causes cross-pavement flow. A crossover concrete gutter would be constructed along with a south side curb and gutter section to straighten the flow downward. To mitigate further street pavement deterioration, a chip seal or slurry seal would be placed on the asphalt pavement extending between the collector box to the Sun Corral Trail intersection catch basin. The estimated construction cost for this project corrective work is $40,000. PROJECT - Buckboard Trail at Portola Avenue - When AAE made the initial field review of the several problem areas before submitting its SOQ response, it was noted that at the intersection of Buckboard Trail and Portola Avenue there is a community drainage discharge that, depending on flow rate, jumps over the south curb and gutter and flows over the asphalt-concrete pavement surface diagonally across the intersection to the north curb. The result has been a severe deterioration of the asphalt- concrete pavement surface. This intersection is not one of the areas reported on in the City provided “Preliminary Report on Miscellaneous Drainage Issues of 1/30/07.” AAE recommends that the community drainage outlet be rebuilt to change the flow direction of discharge to be in line with the south side concrete gutter so that the low flow capacity of the existing concrete gutter can be better utilized. Also, the deteriorated pavement area would be chip sealed or slurry sealed to mitigate further deterioration of the pavement surface. The estimated construction cost for this work is $25,000. PROJECT - Liberty Drive at Country Club Drive - During the May 25, 2007 field review led by John Garcia, City Public Works Department Engineering Manager, AAE was taken to an irrigation/nuisance water problem area at this intersection where gutter flow from the east side of the intersection flows intermittently across the intersection in the concrete gutter westward and eventually flows across a bus/transportation turn-out area creating a problem for local traffic and parents who use the bus turnout to drop off and pick up children attending the local school. When the City staff and AAE were present, there was a flow of drainage runoff from local lawn/parkway irrigation. When the site was visited by AAE an hour later, the runoff flow had stopped and the cross-gutter and the turnout area were dry. AAE’s recommendation would be to construct a catch basin at the east side of the intersection east of the right-turn lane pocket and an underground drain pipe across the intersection and past the turnout to have the gutter flow continue westward. The estimated construction cost is $125,000 including one catch basin, 750± feet of drain and a grated “burber” catch basin. 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Migrate surface gutter drainage o 50 �oo on Country Club Drive north �: ioo gutter at intersection. os-o�-�oo� � � �'r_ � Date: 06/13/07TASK DESCRIPTION Project Manager QA/QC Manager Senior Civil Engineer Civil Engineer CADD OperatorAdmin Assistant and TechnicianTotal Hours Sub Consultants Total Team Members: K. Putnam Y. FarhadiF. DorraniD. KachmarskyF. Rama A. VatanshenasJ. RatliffS. BabakhanianP. Thompson AAE FEE ***** FEE Hourly Billing Rate: $150 $135 $135 $95 $80 $601 Initial meeting with City staff to discuss goals, objectives and standards and proposed design 8 816 2,280.00$ • Gather and review available records from City and CALTRANS 4 8 16 4 32 3,440.00$ • Detailed field review of site conditions and adjacent Right-of-Way, including utilities and drainage 10 8 14 32 3,910.00$ • Perform survey work and provide notes to City*4 4 8 2 18 $ 22,500.00 24,520.00$ 2 Preliminary Right-of-Way Services8 18 8 6 40 $ 1,000.00 5,630.00$ 3 Utilities and potholing ***12 30 40 10 12 104 $ 30,000.00 41,170.00$ 4 Hydrology/Hydraulics Analysis4 20 8 12 44 5,020.00$ 5 Permits4 4 12 6 4 30 3,000.00$ 6 Conduct Soils Investigation and Prepare Report**812 20 $ 27,300.00 29,640.00$ 7 Preliminary Project Elements12 12 16 12 4 56 6,140.00$ 8 Storm Water Compliance8 12 6 8 34 3,180.00$ 9 Prepare concept plan and meet with City to finalize plan 18 2 18 20 28 6 92 9,900.00$ 1 Drainage Plans, Specs & Estimate-$ 1A 35% Submittal20 4 32 48 144 8 256 24,420.00$ 1C 90% Submittal 16 6 28 40 104 16 210 20,070.00$ 1D 100% Submittal10 4 10 18 32 6 80 8,020.00$ • Provide Final Signed PS&E6 3 6 12 12 4 43 4,455.00$ 144 19 214 276 374 80 1107 80,800.00$ 194,795.00$ * Subconsultant is Dennis Janda, Inc.** Subconsultant is Van Beveren & Butelo, Inc.*** Subconsultant is Doty Bros. of Norwalk, CA or a local substructure utility contractor. $30,000 is based on 40 potholes at avrage price of $750 each.**** Consultant and subconsultant fees based on all 7 projects being contracted to AAE Inc. as one project.TASK NO. PHASE I - PRELIMINARY ENGINEERING SERVICESPHASE II - FINAL DESIGN ENGINEERING SERVICESTOTAL FOR DESIGN PHASENot-To-Exceed Fee Proposal For Design Phase **** (Revised #2)City of Palm DesertFor AAE Team to Provide Professional Engineering Design Services Associated with Drainage SolutionsPHASE III - BID PHASE TASKS