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HomeMy WebLinkAbout8 - Erosion Control Plan - Construction Inspection AGENDA NUMBER: PREPARED BY: SUBJECT: DATE: 8 BRUCE LONEY, ASSISTANT CITY ENGINEER CONSIDERATION OF CITY POLICIES: A. EROSION CONTROL B. INSPECTION IN PRIVATE DEVELOPMENT APRIL 5, 1993 INTRODUCTION: The purpose of this Agenda item is to discuss the proposed policies for Private Development Projects and for Council approval for policy implementation. The policies are as follows: A. Erosion Control Plan B. Construction Inspection of Developer Projects BACKGROUND: On November 2, 1993, Director of Public Works, Larry Anderson, discussed the concern of quality of construction work done by developers and their contractors. The recommendation that the City or their consultant should perform the inspection to insure compliance. Council directed Staff to make the necessary changes in the Developer's Agreement to allow either city Staff or a consultant to perform the inspections. Staff has drafted the attached policies for construction inspection and erosion control of private development projects for Council review and approval. The first policy for consideration is the Erosion Control Policy. Recently, the City has adopted three (3) ordinances for storm Water Management and Erosion Control. The policy reiterates the ordinance portions which pertain to erosion control and provides more specific requirements on erosion control measures for development sites and building sites. The policy states that construction site erosion control measures shall meet the standards outlined in the MPCA's "PROTECTING WATER QUALITY IN URBAN AREAS" manual. The policy also requires new developments to install a silt fence along the curb after the concrete curb and gutter has been installed and for a temporary rock construction entrance to be installed on each individual building site for the site access. 4629 Dakota 51. 5.E., Prior Lake, Minnesota 55372 / Ph. (612) 447-4230 / Fax (612) 447-4245 AN EQUAL OPPORTUNITY EMPLOYER The policy also outlines when building ~ermits will be issued for new developments WhlCh is upon the com~letion of the grading of each block. Certlficate of Occupancies will be issued after the bituminous base course pavement is installed and this has been the policy in past years. The second policy drafted by staff pertains with the construction inspection of private development projects. The ~olicy has three (3) sections which descrlbe the policy statement, construction inspection engineering services fee structure and the list of construction inspection services to be done by the city. The policy states that all private development projects within the City are to be inspected by City personnel. Each private development would be required to escrow 8% of net construction costs with the City to pay for construction inspection services. Unused escrow amount will be returned to the developer upon final acceptance by the Cit~. If the escrow account for a development lS depleted before the project is completed, the developer will be required to provide additional funds to cover the inspection expenses. The policy outlines which construction services will be done by the city and which will be done by the developer's engineer. The services by the City include inspection of public improvement systems, documentation of work and testin~, as-built location dimensions for sanltary sewer, water, and storm sewer facilities, and coordination with the testing company for soil and material testing. All other services relating to construction will be the responsibility of the developer. staff feels this policy will provide the City with more quality control of the public improvement construction. The policy fee is structured so that each development will be paying for the actual construction inspection services provided versus charging a fixed ~ercentage of the improvements to pay for the lnspection services. DISCUSSION: Staff will be conducting a meeting with the current developers in the City on April 1, 1993 to discuss the Storm Water Management and Erosion Control Ordinances as well as the policies mentioned in this report. Staff will present the results of this meeting to Council at the Council Meeting. Staff has met with the Glenn Kessel, City Attorney, about the policies and the affects to future Developer's Agreements. It is anticipated that Mr. Kessel will have reviewed the above mentioned items and may have comments at the Council Meeting. The purpose of the policies is to provide standard written statements which tell how the City of Prior Lake will deal with the areas of erosion control and construction inspection in future developments. These policies will provide a clearer, more consistent, expectation to all developers. The alternatives are as follows: ALTERNATIVES: RECOMMENDATION: 1. Approve a motion to implement the policies on Erosion Control and Construction Inspection of Private Development Projects within the City of Prior Lake as presented or as amended at the April 5, 1993 Council Meeting. 2. Deny the motion for the implementation of City policies. 3. Table this item for a specific reason(s). staff recommends Alternative Number 1 as several private development projects will be proceeding in construction soon and the policies need to be implemented and incorporated into future developer agreements with the City. FINANCIAL IMPACT: The cost of the construction inspection and erosion control policies will be by the developers and builders. ACTION REQUIRED: The action required will be to make a motion to implement the policies on Erosion Control and Construction Inspection of Private Development Projects within the City of Prior Lake as presented or as amended at the April 5, 1993 Council Meeting. rnoom~v POLICIES FOR PRIVATE DEVELOPMENT PROJECTS POLICY STATEMENT 1. EROSION CONTROL PLAN It is the pOlicy of the City of Prior Lake that the construction of private developments shall have a site construction plan outlining the erosion control measures based on the 1989 Edition, Protectinq Water Quality in Urban Areas as published by the Minnesota Pollution Control Agency or an equivalent set of standards and as written in the City Code. The requirements included in the proposed Storm Management Ordinances are as follows: Water 1. Locations and dimensions of all proposed land disturbing activities and any phasing of those activities. 2. Locations and discussions of all temporary soil and dirt stockpiles. 3. Locations and discussions of all construction site erosion control measures necessary to meet the standards as outlined in Protectinq Water Quality in Urban Areas, published by the Minnesota Pollution Control Agency or an equivalent set of standards. 4. Schedule of anticipated starting and each land disturbing activity, installation of construction site measures. completion date of including the erosion control 5. provisions for maintenance of the construction site erosion control measures during construction. In addition to the above site construction plan requirements, the city will require silt fence be placed behind the streets concrete curb and gutter within 7 calendar da~s after the concrete curb and gutter is placed. SlIt fence placement shall be located as determined by the city Engineer within the street boulevard area. with an approved building permit, an opening through the silt fence will be allowed for each lot for entry and exit access. At the construction access opening to each individual site, a temporary rock construction entrance [IDrnm~l shall be provided for vehicular access as per the standard detail plate as contained in Protectin9 Water Quality in Urban Areas, published by the Mlnnesota Pollutlon Control Agency. These erosion control measures shall be required for all new construction, except in those cases where the weather makes the installation of such measures unpracticable as determined by the City Engineer or Building Official. Building permits will not be issued until lot grading, topsoil placement, erosion control, and re9uired turf placement are completed. The building permlts can be obtained in Blocks rather than waiting until the entire subdivision grading is complete. The existing policy of issuing one Building Permit per parcel remains in effect. Certificate of Occupancy permits have been issued in the past after the bituminous base course has been placed for the streets in the development. This policy will be continued for future developments. [ID[2~~l POLICY FOR PRIVATE DEVELOPMENT PROJECTS CONSTRUCTION INSPECTION OF DEVELOPER PROJECTS AND TESTING REQUIREMENTS It is the policy of the City of Prior Lake that construction activity for all private development projects within the city shall be inspected by city staff personnel or city engineering consultant firm personnel. The construction inspection fee charged to the private development shall be based upon the fee structure outlined in this policy and the actual engineering services completed by the city's Engineering Department or their consultant's representative. CONSTRUCTION INSPECTION ENGINEERING SERVICES FEE STRUCTURE All private development projects shall escrow 8% of the net construction cost of the development to the city and this escrow account shall be used to pay for the construction inspection services. Construction inspection time will be charged against the escrow with any unused escrow amount to be returned to the developer. If the construction inspection charges exceeds the 8% net construction cost, the developer will add funds as determined by the City Engineer to the escrow to cover city expenses. If the escrow is not replenished, the contractor shall terminate construction activities. If city staff is used for construction inspection services, the hourly charge shall be as per the rates established by the city's Finance Director. CONSTRUCTION INSPECTION SERVICES The construction inspection services includes the inspecting of public infrastructure construction relating to the development. The construction inspection service shall include: 1. Inspection of public improvement systems which include grading, sanitary sewer, watermain, storm sewerjponding, and street systems. Grading inspection is for overview of drainage swales and not for detail site gradin~. Documentation of constructlon work and all testing of improvements. As-built location dimensions for sanitary sewer, watermain, and storm sewer facilities. Coordination with testing company for soil and material testing. 2. 3. 4. [IDrnf}l~W All other construction services are to be provided by the developer's engineer include the following: 1. 2. Construction surveying As-built drawings of development improvements dimensions to sewer and water services from staff or city consultant) Construction quantities Change Orders Construction administration of project Construction payment vouchers 3. 4. 5. 6. (Tie city