UNDERGROUND UTILITIES- GSW

GSW CONSTRUCTION, INC.

UNDERGROUND UTILITIES

A HEAVY CIVIL CONTRACTOR PROVIDING SERVICES IN THE GREATER BAY AREA

www.gswconstruction.com

GSW CONSTRUCTION, INC. Safety is our #1 priority!

Weekly Safety Tailgates LOTO Awareness/Machine Guarding Respiratory Fit-test CPR Training Ladder Safety/Fall Prevention Driver Safety Substance Abuse Awareness for Managers Heat Illness Prevention Program Fire Prevention Training Supervisory Training on Fire Prevention & Excavation

HAZCOM/GHS & Chemical Control Workplace Violence Prevention Plan

Wildfire Smoke Protection Confined Space Training Trenching & Excavation Safety IIPP Employee Responsibilities & Incident Reporting Personal Protective Gear Confined Space Rescue Training

www.gswconstruction.com

GSW CONSTRUCTION, INC.

GSW CONSTRUCTION, INC. IS A LICENSED HEAVY CIVIL CONTRACTOR LOCATED IN SAN FRANCISCO, CALIFORNIA

Founded in March of 2021, GSW serves public utility agencies, private utility agencies, as well as general contractors throughout the greater San Francisco Bay Area. GSW was founded by experienced heavy civil construction professionals, with a collective experience of over 40 years. GSW specializes in small to large construction projects in the public and private sector. GSW’s construction expertise ranges from mass excavations, structural concrete, wet and dry utilities, large diameter welded steel pipe, water and wastewater facilities, aviation fuel line installation and distribution.

101 The Embarcadero Suite #123, San Francisco, CA | www.gswconstruction.com

22-016

BOLLMAN WATER TREATMENT PLANT CONTRA COSTA WATER DISTRICT

www.gswconstruction.com

Process Piping

BOLLMAN WATER TREATMENT PLANT CHEMICAL STORAGE IMPROVEMENTS, PHASE 2 AND SEISMIC STRENGTHENING

STRUCTURAL CONCRETE

STRUCTURAL CONCRETE

MECHANICAL PROCESS PIPING

Temporarily removing sludge collector equipment; demolishing embedded pipe supports Temporarily removing existing chemical tanks Demolishing concrete supports for existing tanks; removing pipe supports, chemical piping,

valves, fittings, control panels, and instrumentation Remove abandoned pipes and electrical conduits

Dispose of removed materials, equipment, and residual chemicals Constructing concrete beams and columns for launder column bracing

Furnishing and installing safety railings Repairing and patching concrete walls Installing seals around existing pipe and conduit penetrations Reinstalling existing sludge collector equipment Constructing new chemical tank pedestals and anchors Reinstalling existing chemical tanks Furnishing and installing chemical piping, fittings, valves, pipe supports, control panels, and instrumentation Furnishing and applying coating on existing fiberglass control panel enclosures Installing trench drains and storm drain pipes Repurposing existing conduits and conductors Furnishing and installing new lining and applying exterior coating on existing chemical storage tank Furnishing and applying chemical resistant coating on existing concrete Testing, startup, and re-commissioning of existing equipment that are re-installed as part of the work; and providing training to District staff for new equipment.

www.gswconstruction.com

900 INNES SHORELINE REMEDIATION PROJECT POWER ENGINEERING

www.gswconstruction.com

Construction, Completion and Storm Damage

Installation Survey, fabric, and rock were placed per tail per the survey provided. Excavation occurred during low tide to properly install rock protection and fabric.

Completion Photos: Cobble Revetment

Geotextile fabric was wrapped per detail under cobble.

Storm Damage Photos: Photos of cobble revetment destroyed by erosion from the bay sloughing off from trailer parking area above .

www.gswconstruction.com

22-017

PALO ALTO TWO TURNOUTS

CITY OF PALO ALTO

www.gswconstruction.com

CITY OF PALO ALTO

Construct a temporary bypass pipeline in the WSTD vault to connect to the Palo Alto water main. The bypass piping will include a meter set consisting of a strainer, flow meter, swing check valve, and pressure reducing valve in the WSTD vault. Also replace the current 16” steel pipe connection between the vaults with ductile iron pipe according to the terms and plans detailed in CPAU’s plans. Replace a 16” water pipeline and install a 4” bypass at Service Connection #77, within a portion of SFPUC’s Pipeline Right of Way, located at California Avenue, in the City of Palo Alto, CA.

www.gswconstruction.com

23-025

STORM DRAIN SLIDE GATE REHABILITATION PROJECT CITY OF SANTA CLARA PUBLIC WORKS DEPARTMENT

Install a total of three new slide gates for the City of Santa Clara Department of Public Works (SCDPW). Four temporary sewage bypasses to maintain service during inspections removal and Installation of the new slide gates. Eastside Pump Station: Replacement of two existing slide gates and frames. Rambo Pump Station: Replacement of one existing slide gate, frames, and new electric motor actuator. Rambo Pump Station: Installation of new electric motor operator. New electrical and mechanical systems will go through testing, start-up, and commissioning. Instrumental Control systems, devices, and instruments,

www.gswconstruction.com

www.gswconstruction.com

23-005

MOFFETT FIELD USGS RESEARCH FACILITY HENSEL PHELPS

www.gswconstruction.com

FUEL LINE ABONDONMENT

Mobilization 1 – sampling & analysis

Extract and contain sample of pipe contents to be ready for testing Testing Haul facilities

Mobilization 2 - Pipe remediation

Excavate existing Jet A Fuel line. Extract and off-haul all pipe Waste manifests prior to off-haul Cut, remove, and dispose of riser section Pump line remaining on site full of slurry

Safely abandon an existing fuel line with Cementous Slurry and remove residual product in pipeline

www.gswconstruction.com

23-029

DALY CITY PUMP STATION SHUTDOWN

CITY OF DALY CITY

www.gswconstruction.com

Effluent Line Repair

Replace all piping Engineer/Design Pipe Remove and Replace flow meter

www.gswconstruction.com

23-006

NEW BEDFORD SEWER LIFT STATION

VALLEJO FLOOD & WASTEWATER DISTRICT

www.gswconstruction.com

Wet Well & Underground Piping

The work consisted of a new sanitary sewer lift station in the same location as the existing lift station in Vallejo, CA. The new lift station consists of a new wet well with submersible pumps, an electrical and controls building with standby generator, and surge tank for hydraulic transient control.

Install Wet Well & Underground Piping 10’ Diameter Wet Well Sewer Drain Piping Site Drain Electrical Conduits Temporary Sewer Bypass System

www.gswconstruction.com

23-004

DUCT BANK EXCAVATION AND INSTALLATION

CUPERTINO ELECTRIC, INC.

www.gswconstruction.com

Pot Hole- hand dig

www.gswconstruction.com

GSW Construction, Inc.

California Contractors License (General A) #1085562 San Francisco Micro LBE #CMD01231000511 California Micro Small Business #2026697 ISN Networld #400-437789 Certifications

05

www.gswconstruction.com

CORE VALUES FAMILY SAFETY INTEGRITY RESPECT COLLABORATION INNOVATION

Organizational culture is the collective result of how people on the team think and behave, their shared values and how they react to internal and external stimuli. Our core values are the bedrock of why our company exists and the foundation of how decisions are made in order to achieve our goals and fulfill our company’s vision.

www.gswconstruction.com

www.gswconstruction.com

Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23

Made with FlippingBook interactive PDF creator