Site work for a civil project in Shreveport, Louisiana. Completed plans call for site work for a water / sewer project.

PROJECT NAME: Walter B. Jacobs Lift Station & Force Main IFB#: 23-07 PROJECT CLASSIFICATION: Major Classification of Municipal and Public Works Construction and a Subclassification of Pipe work (sewer). THE GENERAL SCOPE OF THE PROJECT IS AS FOLLOWS: Construction of a lift station and force main from Walter B Jacobs Memorial Nature Park to the Town of Blanchard sewer system, all as further defined by the Drawings dated June 13, 2023, and Specifications dated September 18, 2023, prepared by Nixon Engineering Solutions, LLC. All Bids must be accompanied by Bid security equal to five percent (5%) of the sum of the base Bid and all alternates and must be in the form of a certified check, cashier s check or Bid Bond written in conformance with state law. The successful Bidder shall be required to furnish a Performance, Maintenance and Payment Bond on a form provided by the Parish and written in accordance with state law. Bids shall be accepted from Contractors who are appropriately licensed under La. R.S. 37:2150-2164. No Bid may be withdrawn for a period of forty-five (45) days after receipt of Bids, except under the provisions of La. R.S. 38:2214. The Parish of Caddo reserves the right to reject any and all Bids for just cause and to waive any informalities and technicalities. The Parish of Caddo shall incur no obligation to the Contractor until the Contract Between the Owner and Contractor is fully executed. The Parish of Caddo is an equal opportunity employer. Furnish and install Two (2) submersible grinder pump (s). Each pump shall be capable of delivering the following performance points, 45 U.S. GPM at 158 TDH; with a shut off head of 168 TDH (minimum). The pump motor speed shall be 3600 RPM, 15 HP (maximum), 3 Phase, 60 Hertz, 240 Volts. The pump (s) shall be manufactured by a company regularly engaged in the manufacture and assembly of similar units for a minimum of five (5) years. The pump (s) shall be BarnesAE model NGVHH15N2. DESIGN:A centrifugal submersible grinder pump designed to reduce all material found in normal domestic and light industrial sewage, including plastics, rubber, sanitary napkins, and disposable diapers into a finely ground slurry. The resultant slurry is then pumped through small diameter piping into a gravity interceptor or treatment facility. The temperature limitation of the liquid being pumped is 104 degrees F continuous and shall be capable of running dry for extended periods. PUMP CONSTRUCTION: Unit (s) shall be CSA listed for Class I, Groups C & D, Division 1, hazardous locations. The volute, seal plates and motor housing shall be constructed of high quality ASTM A-48 class 30 cast iron. [The pump (s) shall be painted with amide amine modified polymer satin gloss epoxy with 10 mil minimum thickness]. All exposed hardware shall be 300 series stainless steel. Discharge connection shall be a standard 2 inch NPT in the vertical position or 2/2.50/3 inch 125 pound slotted flanged to accommodate ANSI or ISO piping flange. The pump impeller shall be of the recessed vortex design. Pumps with standard centrifugal semi-open impeller designs shall not be acceptable. The impeller shall be of ASTM A-48 class 30 cast iron construction and machined for threading to the motor shaft. The impeller shall be capable of being trimmed to meet specific performance characteristics. The grinder mechanism shall consist of a radial cutter threaded and locked on the motor shaft by a washer in conjunction with a countersunk flat head cap screw, and a shredding ring containing a minimum of fifteen flow passages with cutting edges. The shredding ring shall be reversible to provide twice the cutting edge life. Both the shredding ring and radial cutter shall be constructed of 440C stainless steel hardened to a min. Rockwell C55 and shall be finish ground for a fine cutting edge. Two-stage cutter mechanisms requiring external adjustment for proper clearance are not acceptable. The unit shall utilize a tandem mechanical shaft seal arrangement and shall operate in an oil atmosphere. The materials of construction shall be carbon for the rotating face and ceramic for the stationary face, lapped and polished to a tolerance of one light band, 300 series stainless steel hardware, and all elastomer parts to be Buna-N. The seal shall be commercially available and not a proprietary design of the manufacturer. Single phase motors shall be of the capacitor start, capacitor run design and the three phase motors shall be of the dual-voltage 230/460 design. The pump shall be designed to be non-overloading throughout the entire pump curve. The rotor and stator assembly shall be of the standard frame design and secured to the pump seal plate by four threaded fasteners allowing for easy serviceability. The motor shall be constructed with the windings operating in a sealed environment containing clean dielectric oil, making it capable of operating in a totally, partially or non-submerged condition for extended periods of time without damage due to the heat being generated. Air-filled motors shall not be acceptable. The motor windings shall be spike resistant with of Class F insulation and Class H wire. The motor shall meet the standard NEMA design L for single phase, NEMA design B for three phase and be inverter duty rated per NEMA MG1 Part 31. The motor shaft shall be of 416 stainless steel. Protection against excessive temperature shall be provided by heat sensor thermostat attached to the stator windings and connected in series with the contactor coil in the control panel. The lower bearing shall be of the double row ball type to accept radial and thrust loads, and the upper bearing of the single row ball type for radial loads. Bearings shall operate in an oil bath atmosphere for superior life. Permanently lubricated bearings are not acceptable. THREE PHASE: The pump shall be equipped with (30/50/75/100) ft. of a CSA-qualified submersible plug-n-play quick connect power cable constructed in accordance with type W guidelines and shall include the moisture and temperature sensor leads. The cable entry system shall consist of a expanding rubber plug held in place by a cast stainless steel plate indicating voltage and max amps