New River Improvement Project - Calexico Reach

The work shall be done in conformance to the City's final plans and specifications for the Project, which include four (4) major tasks: Installing a Trash Screen across the New River and building a structural concrete Diversion Structure for the New River at a point approximately 900 feet downstream from the US-Mexico International Boundary in Calexico. These tasks also entail: Construction of a temporary diversion channel and coffer dam to build the Diversion Structure and Trash Screen. Demolition work and site improvements including grading, erosion control, fencing and installation of two security gates, lighting, and construction of a new paved access road over an existing dirt road. Removal of an existing security screen that is across the New River, between 2nd Street and the International Boundary. Installing approximately 1.5 miles of a 72-inch underground fiberglass reinforced mortar pipe (FRM pipe) to convey via gravity polluted New River water from the Diversion Structure to a point just upstream of where the All-American Canal Siphon goes over the New River. This work also requires: Building an Energy Dissipater at the end of the 72-inch FRM pipe to prevent erosion of the New River channel at the outfall of the 72-inch FRM pipe. Construction of a small temporary coffer dam to build the Energy Dissipater. Construction of a Pump-back System to replace the polluted water in the river channel that flows adjacent to City neighborhoods with clean, treated wastewater from the Calexico Wastewater Treatment Plant (WWTP). The Pump-back System consists of a 5.0-million gallons per day sewage lift station and the installation of approximately 4,000 feet of a 16-inch Ductile Iron Pipe forcemain. Grading and erosion control of an area just above where the 72-inch FRM pipe outfalls into the River. The Engineers Cost Estimate puts the cost to build the Project at approximately thirty-four million, one hundred and ninety thousand, and five hundred and fifty-six dollars ($34,190,556). A summary of the bids along with a recommended bid may be presented to the City Council for its consideration of awarding the Projects construction contract at a Public Meeting, after the bids are received and evaluated, in December 2022, at 6:30 p.m. in the City Council Chambers, 608 Heber Avenue, Calexico, California. (b) No contractor or subcontractor may be awarded a contract for public work on a public works project (awarded on or after April 1, 2015) unless registered with the Department of Industrial Relations pursuant to Labor Code section 1725.5. This Project is subject to compliance monitoring and enforcement by the Department of Industrial Relations. (c) Please also take notice that the Contractor will be required to obtain coverage under and comply with the State Water Resources Control Board General NPDES Permit for Discharges Associated from Construction and Land Disturbance Activities. Additionally, it is expected that construction of the temporary diversion channel, coffer dams, and in the New River floodplain will require dewatering, which will generate wastewater that needs to be discharged. .No bid will be received unless it is made on the prescribed bid form furnished by the Public Works Department Manager. Each bid must be accompanied by a guaranty of cash, certified check, and cashier check or bidders' bond made payable to the City of Calexico for an amount equal to at least ten percent (10%) of the bid. Such guaranty to be forfeited should the bidder to whom the contract is awarded fails to enter the contract. All guaranties are to be returned after the contract is awarded. CITY'S RIGHT RESERVED: The City reserves the right to reject any or all bids, to waive any informality in a bid, and to make awards in the interest of the City. Pre-submittal inquires must be submitted to Lilliana Falomir, Public Works Manager Administrative via email at falomirl@calexico.ca.gov by 5:00 p.m. on November 9, 2022. A. Summary of Work, location, Work sequence, closeout, Contractor use of premises, and activities by others at Project site. B. Work includes furnishing products, labor, tools, transportation, and services to: C. Construction and installation of the New River bypass encasement to transfer flow to a concrete energy dissipater, pump back system pump station, and trash screen and diversion structure. Provide, replace and construct all trenching, grading, fencing, curbs and gutters. D. Diversion Structure and Trash Rack 1. Construct new concrete channel diversion in the existing New River, including concrete diversion structure, aluminum slide gate with seismic actuator and handwheel operation, concrete push-up weir and trash rack system. 2. Construct new trash rack system, including stainless-steel bar screens, overhead trolley monorail, overhead gripper unit, and two maintenance platforms with ladders. 3. Install security fence and swing entry gate for maintenance and trash refuse access. 4. Regrade and pave site to provide access to equipment. 5. Contractor to implement means and methods to isolate and construct temporary gravity diversion and dewatering for temporary bypass, including cast-in-place trash screen and diversion structure, site civil improvements, grading, electrical improvements and mechanical improvements. 6. Relocation or removal of existing on-site items, including security gate, water sampling bridge and gaging station. 7. Construct trenching, grading and fencing. Project No. 173-111E

Division 02 -	Existing Conditions, Subsurface Investigation.
Division 03 -	Concrete, Precast Concrete.
Division 04 -	Masonry, Unit Masonry.
Division 05 -	Metals, Structural Metal Framing, Metal Fabrications.
Division 06 -	Wood, Plastics, and Composites, Rough Carpentry.
Division 07 -	Thermal and Moisture Protection, Dampproofing and Waterproofing, Thermal Protection.
Division 08 -	Openings, Doors and Frames, Windows, Hardware.
Division 09 -	Finishes, Painting and Coating.
Division 10 -	Specialties, Signage, Compartments and Cubicles, Emergency Aid Specialties, Fire Protection Specialties, Storage Assemblies.
Division 11 -	Equipment, Laboratory Equipment.
Division 14 -	Conveying Equipment.
Division 21 -	Fire Suppression, Fire-Extinguishing Systems.
Division 22 -	Plumbing, Instrumentation and Control for Plumbing, Plumbing Piping, Plumbing Equipment, Plumbing Fixtures.
Division 23 -	Heating, Ventilating, and Air Conditioning (HVAC), Instrumentation and Control for HVAC, HVAC Air Distribution.
Division 26 -	Electrical, Instrumentation and Control for Electrical Systems, Interior Lighting, Emergency Lighting, Exit Signs, Exterior Lighting.
Division 27 -	Communications, Structured Cabling, Data Communications, Voice Communications, Distributed Audio-Video Communications Systems.
Division 28 -	Electronic Safety and Security, Electronic Access Control and Intrusion Detection, Access Control, Intrusion Detection, Electronic Surveillance, Electronic Detection and Alarm.
Division 31 -	Earthwork, Site Clearing, Grading, Excavation and Fill, Subgrade Preparation, Excavation, Erosion and Sedimentation Controls, Earthwork Methods, Shoring, Tunneling and Mining, Tunnel Excavation.
Division 32 -	Exterior Improvements, Operation and Maintenance of Exterior Improvements, Flexible Paving, Rigid Paving, Curbs, Gutters, Sidewalks, and Driveways, Fences and Gates, Turf and Grasses.
Division 33 -	Utilities, Instrumentation and Control for Utilities, Water Utilities, Water Utility Distribution Piping, Water Utility Distribution Equipment, Disinfecting of Water Utility Distribution, Water Utility Storage Tanks, Storm Drainage Utilities, Ponds and Reservoirs, Electrical Utilities, Communications Utilities.
Division 34 -	Transportation, Operation and Maintenance of Transportation.
Division 35 -	Waterway and Marine Construction, Shoreline Protection, Waterway Construction and Equipment, Dam Construction and Equipment.
Division 44 -	Pollution and Waste Control Equipment, Common Work Results for Pollution and Waste Control Equipment, Air Pollution Control, Noise Pollution Control, Odor Control, Water Pollution Control Equipment, Solid Waste Control and Reuse, Waste Thermal Processing Equipment, Fluidized Bed Combustion Equipment, Rotary Kiln Incinerators, Pyrolysis Equipment, Hazardous Waste and Medical Waste Incinerators, Heat Recovery Equipment for Waste Thermal Processing, Synthesis Gas Cleanup and Handling Equipment.