Site work and paving for a road / highway in Leominster, Massachusetts. Completed plans call for site work for a road / highway; and for paving for a road / highway.

Location: Leominster Reconstruction/Rehabilitation on Route 12 (Central Street), including Rehabilitation of L-08-022 Project Type: Highway - Construction District: 3 MADOT: Reconstruction/ Rehabilitation On Route 12 Controlled Low-Strength Material shall be installed in accordance with the relevant provisions of Subsection 150: Embankment, Section 901: Cement Concrete and in accordance with the procedures described herein. Controlled Low Strength Materials (CLSM) shall be a self-compacting, self-leveling, flowable, excavatable or non-excavatable, low strength, rigid setting, and unshrinkable material, used as an alternative to compacted granular fills, including backfill, structural fill, utility fill, pavement base, subgrade, subbase, base course, conduit bedding, erosion control, and void filling. The Contractor's approach to prosecution of the Work shall be disclosed to the Department by submission of a Critical Path Method (CPM) schedule and a cost/resource loaded Construction Schedule when required in this Subsection. These requirements are in addition to, and not in limitation of, requirements imposed in other sections. The requirements for scheduling submissions are established based on the Project Value at the time of the bid and are designated as Type A, B, C or D. The definitions of these Schedule Requirement Types are summarized below. Complete descriptions of all detailed requirements are established elsewhere in this specification. Type A - for all Site-Specific Contracts with a Project Value over $20 Million o Schedule Planning Session o Baseline CPM Schedule o Monthly Update CPM Schedule o Short-term Construction Schedule o Contract Schedule Update Meeting o Resource-Loading o Resources Graphic Reporting o Cash Flow Projections from the CPM o Cash Flow Charts o Cost-loaded CPM o Contractor-furnished CPM software, computer and training Type B - for all Site-Specific Contracts with a Project Value between $10 Million and $20 Million o Schedule Planning Session o Baseline CPM Schedule o Monthly Update CPM Schedule o Short-term Construction Schedule o Contract Schedule Update Meeting o Cost-loaded CPM o Resource-Loading o Monthly Projected Spending Report (PSR) o Contractor-furnished CPM software, computer and training Type C - for all Site-Specific Contracts with a Project Value between $3 Million and $10 Million o Schedule Planning Session o Baseline CPM Schedule o Monthly Update CPM Schedule o Short-term Construction Schedule o Contract Schedule Update Meeting o Monthly Projected Spending Report (PSR) o Contractor-furnished CPM software, computer and training Type D - for all contracts with a Project Value less than $3 Million; various locations contracts of any dollar amount; contracts with durations less than one-hundred and eighty (180) Calendar Days; and other contracts as determined by the Engineer. o Bar chart schedule updated monthly or at the request of the Engineer (See Section 722.62.B - Bar Charts.) o Monthly Projected Spending Report (PSR) (See Section 722.62.F - Projected Spending Reports.) Work under this item shall include the transportation and disposal of all treated existing wood products as directed by the Engineer. The removal of treated timber from the existing bridge, and all associated labor and materials. The timber components of the existing structure are suspected to be treated with creosote, pentachlorophenol and/or CCA. This item shall include all costs for sampling, laboratory testing, loading, transportation and disposal of the treated wood. The Contractor is required to submit disposal manifests to the Engineer prior to the completion of the project. All aspects of this Item are to be completed in accordance with state and federal regulations. The work under these items shall conform to the relevant provisions of Subsections 140, 201, 901, and Materials Sections M4 and M8 of the Standard Specifications and the following: The work under this Item shall consist of furnishing all labor, materials, tools and equipment and the performance of all work required to furnish and install the special manholes as shown on the plans at stations 23+04, 45+13, 50+29, 77+45, and 77+32. The Contractor shall design, furnish, install, maintain, and remove excavation support systems as required based upon the actual site conditions, for the protection of adjacent utilities and the construction of the proposed special manholes. This excavation support system shall be designed by the Contractor and shall be configured to serve the intended purpose during construction in compliance with the Traffic Control Plan and without the need for reinstallation or major modifications. All existing and proposed utility locationsshall be taken into consideration for the excavation support system layout. The excavation support system shall be designed to allow for a 2-foot depth of overexcavation to remove organic and other unsuitable soils. The excavation supportsystem shall either consist of braced excavation, concrete blocks or any other system that satisfies the design criteria contained herein and be approved by the Engineer. The excavation support system must be capable of supporting all loads applied throughout the construction, including active soil pressure and highway surcharge. All material used for the excavation support system shall be sound and free from strength impairing defects. Steel sheeting (if used) shall conform to the applicable requirements of Subsection 950. The excavation support system must be installed with the overhead wires maintained in their current locations without any intent for a relocation to be done by others. Any utility relocation required to accommodate the installation of the excavation support system will need to be arranged by the Contractor at his/her own expense and without any allowance for a contract extension. The Contractor shall submit to the Engineer for approval the excavation support system layout and design calculations for all applicable American Association of State Highway and Transportation Officials (AASHTO) loads, including, but not limited to, earth pressure and surcharge due to vehicular live load. The design shall be in accordance with the Contract Plans, the MassDOT LRFD Bridge Manual, the latest AASHTO LRFD Bridge Design Specification for Bridge Temporary Works, and all interims published as of bid opening. The Contractor shall account for the variability of subsurface conditions such as boulders and variable water surface conditions. The removal of obstructions as needed to install the excavation support system is incidental to this Item. The excavation support system shall be designed and stamped by a Professional Engineer registered in the Commonwealth of Massachusetts. Prior to any excavation, the Engineer must approve complete detailed drawings and complete calculations for the excavation support system in writing. Under these items, the Contractor shall furnish, lay, joint, test, and disinfect all water pipe and fittings, as indicated on the Contract Drawings and in accordance with the relevant provisions of Subsection 300 of the Standard Specifications, the American Water Works Association (AWWA) C-600 Standards, and in accordance with the current requirements of the Leominster Water and Sewer Department. The Contractor shall be responsible for notifying the Leominster Water and Sewer Department and the Engineer of service shutdown 48 hours prior to the actual shutdown. The shutdown of the water services will be performed only by personnel of the Leominster Water and Sewer Department. Valves, hydrants, corporations, and curb stops will be operated by the Leominster Water and Sewer Department personnel only. Shutdown of fire service(s) requires prior notification to, and approval of, the Leominster Fire Department. The Contractor shall notify and coordinate with the City and owners of business and commercial establishments of any disruptions to, or shutdowns of, water service to their facilities. The Contractor shall schedule service disruptions or shutdowns such that operations of business and commercial establishments are not impacted, and furthermore shall coincide with periods of minimal water usage by these properties. Data relative to existing water mains, services, etc. shown on the plans has been compiled from plans and field information but such data is not guaranteed as to exact location or elevation. Field Testing The testing shall conform to AWWA Standard C600, and all equipment shall be approved by the Leominster Water and Sewer Department. The water pipe shall be given pressure and leakage tests in sections of approved length. For these tests, the Contractor shall furnish a water measuring device and a pressure gage. The Contractor shall also furnish and install suitable temporary testing plugs or caps for the pipeline; all necessary pressure pumping equipment, pipe connections, and other similar equipment; water; and all labor required; all without additional compensation. Compensation for testing shall be included in the unit price for pipe and fittings. The meter and gage shall be installed by the Contractor in such a manner that all water entering the section under test will be measured and the pressure in the section indicated, and equipment shall be kept in use during both tests. Meters, gages, and other test equipment shall be approved by the Engineer. The scheduling of pressure and leakage tests shall be as approved by the Engineer. The Contractor shall furnish, install, chlorinate, maintain, and remove bypass and temporary service pipes of the necessary size to adequately service water customers during the water main relocations on Central Street. The specific locations include approximately 200 feet north of the intersection with Richard Road, approximately 150 feet southeast of the intersection with Chapman Place, and at the intersection with Chapman Place. The Contractor shall provide temporary services for the customers whose permanent service line is: a. Out of service due to the main pipe to which it is connected to being replaced b. Out of service due to the main pipe to which it is connected to being cleaned and cement lined c. Out of service due to the main pipe to which it is connected being served only by the main being rehabilitated or replaced, including dead end pipes and pipes ending at division gates. d. Out of service for any other reason in connection with work under this contract. e. The water main along Central Street shall remain active at all times. Temporary shutdowns shall not exceed 8 hours. The Contractor shall locate all services to be fed by the by-pass system. Customer's service lines, which will be out of service for a limited period of time (a maximum of 8 hours), in the opinion of the Engineer, need not be by-passed but all other provisions regarding adequate notice and hours of shut down shall be strictly adhered to. The Contractor shall submit a plan showing the proposed temporary by-pass system and point of connections for review and approval by the Engineer, the City Engineer and City Fire Department.