Demolition, site work and renovation of a civil project in Houston, Texas. Completed plans call for the demolition of a water / sewer project; for the renovation of a water / sewer project; and for site work for a water / sewer project.

Estimate: $20,629,000.00 Type: Ground Water Facility/Re-Pump Station/HVAC & Ventilation System Improvements Owner: City of Houston Location Harris County, TX Map Code: Scope This project provides improvements to various groundwater facilities/re-pump stations. Improvements include renovations, pump and motor replacement/rehabilitation, and replacement/rehabilitation of electrical switchgear, generators, motor control components, valves, piping, and the HVAC and ventilation system. Contact Address City of Houston 611 Walker Street Houston, Texas 77002 Contact Info Contact: Antonio Coleman Phone: (832) 395-2373 Fax: Email: antonio.hall@houstontx.gov A. Provides continuous sewer service to users of sewer systems while maintenance or construction operations are in progress, by diverting flow around construction locations. Maintain sewer flow to prevent backup or overflow onto streets, yards and unpaved areas or into buildings, adjacent ditches, storm sewers, and waterways. Do not divert sewage outside of sanitary sewer system. B. When pumps are operating, have an experienced operator on site to monitor operation, adjust pumps, make minor repairs to system, and report problems. A. Filter Fabric Barrier Type 1 and Type 2: Install to allow surface or channel runoff percolation through fabric in sheet-flow manner and to retain and accumulate sediment. Maintain Filter Fabric Barriers to remain in proper position and configuration at all times. B. Hay Bale Fence: Install to allow surface runoff percolation through hay in sheet-flow manner and to retain and accumulate sediment. Maintain Hay Bale Fence to remain in proper position and configuration at all times. C. Interceptor Dikes and Swales: Construct to direct surface or channel runoff around the project area or runoff from project area into sediment traps. D. Drop Inlet Baskets: Install to allow runoff percolation through the basket and to retain and accumulate sediment. Clean accumulation of sediment to prevent clogging and backups. E. Sediment Traps: Construct to pool surface runoff from construction area to allow sediment to settle onto the bottom of trap. F. Sand Bags: Are used during construction activities in unstabilized minor swales, ditches, or streambeds when the contributing drainage area is no greater than 2 acres. It is also sediment barrier for stage one Inlet. G. Bagged Gravel Barrier: Are used during construction activities in unstabilized minor swales, ditches, or streambeds when the contributing drainage area is no greater than 2 acres. It is also sediment barrier for stage two Inlet. H. Drop Inlet Insert Basket: Is a temporary barrier placed within a storm drain inlet (Lower Portion of Stage I and Upper Portion of Stage II Inlets) consisting of a filter fabric supported by a metal frame work to prevent sediment and other pollutants from entering convey system. I. Brush Berm: Brush Berm is constructed at the perimeter of a distribute site within the developing area. A. A system to uniquely name and number process and mechanical facilities, systems, equipment, piping and valves to be constructed, installed, and used on the City of Houston "Ground Water Facility/Re-Pump Station/HVAC & Ventilation System Improvements at Various Locations - Package 2" Project has been developed and shall be used on all correspondence, submittals, and nameplates as described below. B. A description of the project's Equipment/Valve and Pipe Identification System is indicated on the P&ID Drawings. C. Use the equipment and valve numbers, and the pipe identification labels, indicated on the Drawings or as specified in all transactions, including correspondences and submittals. If a nomenclature label is not specified or indicated, notify the Engineer. The Engineer will assign additional nomenclature labels, where appropriate. Contractor will provide non-specified labels at no additional cost to the City. D. Equipment numbering and tagging for instruments and instrument and control equipment provided under Division 13 are part of this section and shall be in accordance with the requirements specified in this Section. E. Valve numbering and tagging for valves and for systems specified in Division 13 and 15 (including HVAC) are part of this section and shall be in accordance with the requirements of this Section. F. Equipment numbering and tagging for electrical items provided under Division 16 are part of this section and shall be in accordance with the requirements of this Section. A. Throughout the Work, furnish and install sealant and caulking at all joints as shown on the Drawings and elsewhere as required to provide a positive barrier against passage of air and moisture. A. Contractor shall be responsible for protection of the site, and all work, materials, equipment, and existing facilities herein, from actions of the Contractor, and his/her employees, including all sub-contractors and suppliers, whether engaged in the execution of the work under this Contract, or engaged in any other activity while present on the site. B. Contractor shall also be responsible for loss protection and protecting all of the Contractor's property, equipment, assets and employees while on the work site. C. No claim shall be made against Owner by reason of any act of an employee or trespasser. D. Contractor shall comply with all security measures required by the Owner, including access badging requirements, background security checks, vehicle searches, and all other security measures, either required in this Section or as appropriate on the job site. Owner reserves the right to permanently exclude from the site, at any time, any personnel proposed by the Contractor for security reasons, including, but not limited to, failure to comply with City security measures. E. Contractor shall be solely responsible for all security and loss prevention within the Temporary Field Office Area and Work Area throughout the duration of the Contract. A. Furnish all labor, materials, equipment and incidentals required to cut, remove, repair or otherwise modify parts of in-place concrete. B. Work under this Section may also be performed as a remedy for improperly or poorly placed concrete, or concrete damaged during construction operations. Such work shall be performed only after receiving written directions from the Engineer. A. Furnish and install electrical support hardware, as shown on the Drawings and as specified herein. B. Hardware shall include anchor systems, adhesive anchor systems, metal framing systems, and other electrical support systems, as shown on the Drawings and specified herein. A. The Contractor shall provide a Power System Study for the electrical power system, including a Short Circuit Study, Coordination Study, Arc Flash Hazard Study, Motor Starting Voltage Drop Study and additional studies as listed below. A Load Flow Study shall be supplemented with appropriate load factors, by the Study Engineer, in consultation with the Owner/Engineer. B. The electrical power system shall be deemed to include the utility company's transformer, the Owner's power distribution system, including all existing and new system components, associated with this project. The short circuit and coordination study reports shall provide an evaluation of the electrical power systems and the model numbers and settings of the protective relays or devices and metering or motor monitoring devices for setting by the Contractor. C. The Contractor shall include the use of his own forces to obtain all pertinent data necessary for the successful completion of the Power System Studies, including information on all existing and new equipment and wiring pertinent to the Study. This shall be interpreted to include all cable and raceway data, and data from all existing and/or new switchgear, motor control centers, and switchboards. Obtain all existing or new protective device information to include all present settings. The Contractor shall obtain any needed data or information from Contract Documents, various suppliers, the Electric Utility and from conducting his own field investigations. If, in his field investigations, the Contractor encounters conflicts between the Contract Documents and the field conditions, the Contractor shall immediately notify the Owner/Engineer for a resolution to the conflict. Copies of the data obtained, shall be organized and submitted to the Owner/Engineer at the same time of transmittal to the Study Engineer, to show that all the requested data gathering work has been completed. A. Scope: 1. CONTRACTOR shall provide all labor, materials, equipment and incidentals as shown, specified and required to furnish and install surge protective devices (SPDs) in the MCC/power panel, control panels and field devices. 2. Provide surge protection devices to protect field instruments and equipment from the effects of transient surges caused by lightning and other electrical sources. 3. SPDs shall be installed at the following locations: a) On 480 VAC power and neutral connections at the MCC or power panels. b) On 120 VAC, 60Hz power connections to control panels. c) On all analog signals at the control panel. Include surge protection at 24 VDC loop powered field instruments for wiring distances greater than 75 feet from the control panel. Include surge protection on all four-wire, 120 VAC field instruments. d) On all discrete signals that have portions of interconnecting wiring located outside of protected buildings. e) On all copper data lines that have portions of interconnecting wiring located outside of protected buildings. B. Related Sections: 1. Section 13413: Control Panels. 2. Section 13471: Enclosures. 3. Division 16: Electrical. Furnish and install solid state starter(s) as shown on the drawings and as specified herein, including all required appurtenances. The solid-state starter(s) shall be microprocessor controlled, suitable for use with three phase standard induction motors rated 480 VAC or less. The starter(s) shall provide Closed Loop Current Control, Sensorless Linear True Torque Control, and KW Ramp Control for smooth and stepless motor acceleration and deceleration. A. The Contractor shall furnish and install assemblies of Medium Voltage Solid State Reduced Voltage Motor Controllers (MVSSMCs), together with appurtenances, complete and operable, as specified herein and as shown on the Contract Drawings. B. Motor controllers shall be sized to include all equipment, spares and spaces shown on the Drawings. C. The MVMCC manufacturer shall coordinate with the motor manufacturer for the motor being furnished, and shall provide a certification that the motor controller is suitable for the application.