Water & Wastewater Archives

Vilano Beachfront Park

Vilano Beachfront Park Vilano Beach, FL DCCM provided comprehensive concept planning, master planning, engineering, and landscape architectural services for Vilano Beachfront Park on Vilano Road in St. Johns County, Florida. The project aimed to seamlessly integrate the preservation of the natural coastal environment with the historic character of the area, creating a unique space for civic engagement and social recreation. Key features of Vilano Beachfront Park include a 1,300-square-foot pavilion that seats up to 190 people, designed to host concerts, educational events, and community gatherings. The pavilion incorporates rotating panels, which can be opened to provide ocean views or closed for events, and is equipped with performance lighting that is directed away from the Vilano Town Center, also considering turtle nesting season regulations. Additional upgrades to Vilano Beachfront Park focus on enhancing accessibility and visitor experience. These include new changing stations, a recreational area featuring a climbing play structure, new outdoor showers, renovated restrooms, and improved parking with restriping for ADA compliance. A mobimat provides accessible beach entry along the northern boundary, while updated dune walkovers, including an ADA-compliant viewing turnaround, allow easy access for all. Vilano Beachfront Park provides the only disability-accessible beach in St. Johns County, with a wheelchair-accessible path to the sandy beach and a wooden ocean-viewing ramp. These enhancements ensure an inclusive coastal experience for all visitors. At a Glance 1.7 Acres 109,000 Project Cost Inclusive Design Award from the Florida Planning and Zoning Association Project Award Markets Land Development Buildings Water Services Land & Site Development Buildings & Places Program Management Water & Wastewater

Stillwater Residential Development

Stillwater Residential Development St. Johns, FL DCCM provided professional engineering services for the Stillwater development, an age-restricted community featuring 550 single-family and multifamily duplex units, along with an 18-hole golf course and associated amenities, infrastructure, and roadway design. The development included an 18,828 SF clubhouse building, 2,109 SF aquatics building with a pool, a 600 SF driving range concession and restroom building with associated driving range bays, and a 9,098 SF maintenance facility. Additional recreational features encompassed a 2.5-acre driving range, two full-size tennis courts, two full-size pickleball courts, a bocce ball court, and special event lawn space. Our team coordinated the design and permitting with St. Johns County, the Water Management Distrcit, JEA, Florida Department of Environmental Protection, and Army Corps of Engineers. DCCM was also responsible for certifications of the completed construction, which required routine site visits throughout construction, an as-built review, and a thorough assessment of all testing documents. The project included over 10,000 feet of 24-inch reclaimed water main, along with more than 10,000 feet of both water main and sanitary force main of various sizes less than 24″ in diameter to support the community’s infrastructure needs. The onsite utilities were also designed through detailed coordination with JEA staff to ultimately provide a looped connection between existing infrastructure within Veterans Parkway and CR 210.  At a Glance 784 Acres $932,000 Project Cost 2023 Development of the Year Honorable Mention by Golf Inc. Magazine Project Award Sports Illustrated Most Innovative Course Design for 2022 Project Award Markets Land Development Water Services Land & Site Development Water & Wastewater Utilities

St. Johns County Health & Human Services Center

St. Johns County Health & Human Services Center St. Augustine, FL DCCM provided engineering services for the Health & Human Services facility located near the St. Johns County office complex. Completed in three phases, the project encompasses over 40,000 SF of building footprint on a 16-acre site. Notably, the Center’s stormwater facility includes a wet detention pond paired with two bio-retention ponds, providing diversity of landscaping to the site. Project scope included complete civil site design, stormwater and utilities infrastructure design, and permitting with St. Johns County, City of St. Augustine, FDEP and SJRWMD. Our team coordinated and managed all aspects of this project and worked closely with the building architect, St. Johns County Construction Services, and St. Johns County Survey Department. We coordinated with subconsultants to determine the wetland line and flood plain impact, and conduct geotechnical investigations. We also worked with the City of St. Augustine Public Works Department, as the City provided utility service to this site, and USACE to obtain permitting for this project. Our team helped the county prepare bid specifications, assisted with bid evaluation, subsequent contract administration and engineering construction inspection of the contractor. This project serves as an example of DCCM’s experience in working with several entities to complete a large project on an accelerated schedule. At a Glance 40,000 Square Feet $63,000 Project Cost Markets Water Land Development Services Water & Wastewater Land & Site Development Program Management Utilities

Butler Beach Drainage & Stormwater Master Plan

Butler Beach Drainage & Stormwater Master Plan St. Augustine, FL DCCM was tasked by St. Johns County to analyze the Butler Beach region’s drainage characteristics and study of how the region’s various sub-regions interact with each other. Our staff reviewed the existing drainage basin and identified areas of concern, which included the watersheds and stormwater infrastructure within the Butler Beach drainage area. Data was collected and analyzed from FEMA historic claims, Florida Department of Transportation infrastructure, field observations, Natural Resources Conservation Service (NRCS) soils information, current St. Johns River Water Management District permits, National Oceanic and Atmospheric Administration (NOAA) storm data, multiple field surveys and observations along with other data sources. In addition, a community forum/public meeting was held to identify other potential deficient areas. Each sub-region was evaluated, and recommendations were made for improvements. Maintenance considerations, capital costs and overall construction feasibility were considered. The proposed solutions were ranked based on the overall benefit cost analysis to assist the County in determining timing and funding of capital improvements to the drainage systems, overall effectiveness, ease of maintenance, feasibility of construction, and overall benefit to the sub-region. Finally, a detailed with report with full details for each potential solution was created and presented to St. Johns County. At a Glance 2.7 Sq Miles Project Size $118,000 Project Cost Markets Land & site development Services Land & Site Development Water & Wastewater

Northeast Water Purification Plant Expansion

Northeast Water Purification Plant Expansion Houston, Texas DCCM partnered with the Houston Waterworks Team to perform a progressive design-build project to expand the existing City of Houston Northeast Water Purification Plant from 80 million gallons per day to 400 million gallons per day treatment capacity. DCCM was responsible for the structural and mechanical design of the new raw water intake pump station, located 1,000 feet offshore in the middle of Lake Houston. It has an access bridge and pump station platform with ten 1,000-horsepower vertical turbine pumps capable of delivering up to 560 million gallons per day (ultimate capacity) of raw water from Lake Houston to the Northeast Water Purification Plant. DCCM performed structural design modeling and simulation of a 30,000-square-foot pump station platform that supported the pump facility building, pump equipment, piping and electrical switchgears, and process mechanical design to install ten 1,000-horsepower vertical turbine pumps with two 96-inch header pipes, control valves, and a 25-ton bridge crane. The intake pump station platform is 13 feet above normal water level and 250 feet long by 120 feet wide, supported on a cast-in-place 1-foot-thick concrete deck with 3.5-foot-deep grade beams. DCCM designed and analyzed the intake pump station using the finite element program Structural Analysis and Designing Program. Dynamic analyses were also performed to verify the platform’s dynamic behavior under pump dynamic loads during operation. Bentley 3D models were used in the final design by structural, architectural, process mechanical, piping, plumbing, instrumentation, and electrical design disciplines. All design models were integrated to detect conflicts and complete the final product. At a Glance 400 million Gallons per Day $165 million Construction Cost Markets Municipal Services Water & Wastewater Utilities

IH 45 and SH 6 Water Distribution System Improvements

IH 45 and SH 6 Water Distribution System Improvements Galveston County, Texas DCCM provided preliminary and final design and construction-phase services for 8,100 linear feet of 24-inch water line as part of a collaboration between the Galveston County Water Authority and Galveston County to provide potable water to a future residential area in Texas City. To accommodate this needed water line, an alignment was established at the intersection of Avenue L and a Galveston County Water Authority canal in Santa Fe, where the line connected to an existing water line and then extended along the north high bank of the canal to a metering station site west of IH 45. This project was funded by the State of Texas through a Community Development Block Grant and administered by the Texas General Land Office due to damage from Hurricane Ike. The funding was allocated to Galveston County, thereby funding the construction and managing the design and construction phases. At a Glance 8,100 Linear Feet 24-inch Water Line $1.8 million Csontruction Cost Markets Municipal Services Utilities Water & Wastewater

Countryside Wastewater Treatment Plant Decommission, Lift Station and Force Main Upgrade

Countryside Wastewater Treatment Plant Decommission, Lift Station and Force Main Upgrade League City, Texas DCCM was selected to provide preliminary engineering, final design, and construction services to decommission the existing Countryside Wastewater Treatment Plant (WWTP) and install a new lift station and new force main to divert wastewater to the existing Southwest Water Reclamation Facility. The existing lift station was decommissioned and replaced with a new 10-foot lift station featuring three 20-horsepower submersible pumps, providing a firm capacity of 850 gallons per minute for diversion service. The design included modifications to the existing sewer collection system, including the addition of new manholes and gravity lines to intercept and divert sewer flow to the new lift station. Construction sequencing, bypass pumping, and coordination were carefully planned to allow the construction of the new lift station, sewer diversion, and demolition of the existing lift station and wastewater treatment facilities. The new lift station featured a programmable logic controller (PLC)-based pump control panel, supervisory control and data acquisition (SCADA) access via a wireless antenna for remote monitoring, and a manual transfer switch to facilitate emergency generator connection in accordance with TCEQ requirements. At a Glance 850 Gallons per Minute $1.6 million Construction Cost Markets Municipal Services Water & Wastewater

Cedarspur Drive, Burkhart Road, and Winningham Lane Improvements

Cedarspur Drive, Burkhart Road, and Winningham Lane Improvements Spring Valley Village, Texas DCCM provided the preliminary engineering report, design, survey, and SUE QL-C and D for road paving and utility improvements in three separate areas of the City of Spring Valley Village. The project encompassed the reconstruction of Cedarspur Drive, Burkhart Road, and Winningham Lane East, totaling 2,200 linear feet. It included replacing 6,400 square yards of concrete roadway and driveways, water line, and sanitary improvements. Additional services included attending pre-bid meetings, bid evaluation, and award recommendation. DCCM also attended a preconstruction conference, reviewed shop drawings and requests for information, performed site visits as specified by the client, and provided record drawings. The design of the TCP was challenging because the project consisted of three streets with dead ends, requiring us to maintain two-way traffic while rebuilding a two-lane roadway. We limited work zones to 400 linear feet at a time to make it easier for residents traveling to and from their homes. Ongoing flagging and coordination with residents was imperative for a smooth project. DCCM coordinated closely with the City of Spring Valley Village, the contractor, and affected homeowners to provide a seamless design and construction experience. Homeowners were notified of the schedules, including the start and end times for work on their street. Homeowners were also encouraged to notify the city, the contractor, or the engineer if there were any issues. The project went smoothly with minimal issues. At a Glance 2,200 Linear Feet 6,400 Square Yards of Concrete $1.34 million Construction Cost Markets Municipal Surveying Transportation Services Surveying Transportation Utilities Water & Wastewater

2020 Multi-Street Reconstruction

2020 Multi-Street Reconstruction Pasadena, Texas DCCM provided preliminary and final design, bidding, and construction-phase services for reconstructing 12,220 linear feet of neighborhood residential streets and a collector street within the City of Pasadena. The project comprised nine separate residential streets, including West Park Lane, Madison Avenue, Austin Avenue, Easthaven Drive, Magnolia Street, Tilden Drive, Polk Avenue, Kansas Street, and Llano Street, a major collector. The project scope included the complete reconstruction of existing neighborhood concrete roads, including storm sewer, sanitary sewer, and water line replacements and upgrades. The project also included Americans with Disabilities Act (ADA)-compliant sidewalks/shared-use paths and ramps, signing and pavement markings, traffic control, a stormwater pollution prevention plan (SWPPP), a complete drainage study, and a geotechnical report. This reconstruction project was bid on a unit-price basis before design began and executed on a fast-track schedule. This included close coordination between DCCM and the contractor during the design and continuous coordination with the City of Pasadena and the contractor. This close coordination allowed changes to be quickly made in the field during construction as required. Portions of the project required innovative engineering to provide the necessary detention within the street’s limits. This fast-track process will set the path for future projects designed and constructed within the City of Pasadena. The design and reconstruction of all streets were completed within an accelerated 12-month schedule. At a Glance 12,220 Linear Feet $11.4 million Construction Cost Markets Municipal Surveying Transportation Services Surveying Transportation Utilities Water & Wastewater

108-Inch Northeast Transmission Line, Contract 99D-2

108-Inch Northeast Transmission Line, Contract 99D-2 Houston, Texas DCCM provided final engineering design and construction-phase services for 1.4 miles of 108-inch water main from Aldine Westfield Road to Willis Street in north Houston. This project was extremely complex due to the size of the water main and the congested area where the alignment was located. DCCM worked with the City of Houston and its Program Manager to develop a 50-foot water line easement through an existing urban region. To develop the preferred alignment, DCCM considered construction issues, including laydown areas, environmental constraints, traffic impacts, and existing utilities. DCCM developed alignment alternatives, such as tunnels instead of open-cut construction, in multiple areas to minimize or eliminate significant impacts on existing businesses, as numerous commercial buildings are close to the route. Tunnels were designed to mitigate the impact on the buildings and their operations in these areas. Since the project was in an urban region, DCCM worked closely with the existing utilities to develop utility conflict documents and support their relocation. The design also included construction phasing and traffic control to maintain access to residences, facilities, and emergency services. The water line was a significant transmission main constructed via open-cut and tunneling methods. Each method was optimized for the project. At a Glance 108-inch Water Main 7,400 Linear Feet $31 million Construction Cost Markets Municipal Surveying Services Water & Wastewater Surveying Utilities

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