Portfolio Tag: Texas

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

69th Street Wastewater Treatment Plant, Packages 5 and 6

69th Street Wastewater Treatment Plant, Packages 5 and 6 Houston, Texas Package 5: DCCM completed field investigation and final design services to replace the existing 69th Street wastewater treatment process instrumentation and controls for the entire wastewater facility. Work included the replacement of flow meters, analyzers, pressure and level instruments, pneumatic and electrical control valves, electrical conduits, and control panels for the lift station, headworks, flow distribution controls, oxygen reactors, clarifiers, return activated sludge and waste activated sludge pump stations, sludge thickeners, and an odor control system. Package 6: DCCM provided a preliminary engineering study, including filter pilot testing and evaluation of new tertiary filter technology to replace the existing sand filters at the 69th Street WWTP. DCCM worked with the City of Houston to procure a new filter system. The final design included modifying the existing treatment facility infrastructure and adjusting the hydraulic profile to fit the new filter system, a new electrical system with instrumentation, and control systems. The existing sand filter system was demolished and replaced with a Kruger disc filter system. The new disc filter system is rated for an average of 220 million gallons per day and a peak flow of 440 million gallons per day, making it Texas’s largest tertiary filter system installation. At a Glance 440 million Gallons Per Day $25.4 million Construction Cost Markets Municipal Services Water & Wastewater

42-inch Water Line Design, Segment 3 A1

42-inch Water Line Design, Segment 3 A1 Harris County, Texas DCCM provided final design and construction phase services for 14,000 linear feet of 42-inch water transmission line within a CenterPoint Energy electric transmission line corridor and easement. This water line is part of the West Harris County Regional Water Authority’s (WHCRWA) 2025 system, which will meet at least 60% of water demand with surface water. This is the latest project in a long history of working with WHCRWA to supply their surface water requirements. The project involved installing water lines in CenterPoint Energy’s electrical transmission line corridor for miles. Trenchless construction was required within 20 feet of truss towers and across busy roadways. Close coordination was maintained with the City of Houston and Harris County for permitting and the acquisition of record drawings. Collaboration with the design engineer ensured a proper connection to an 84-inch water line. Additionally, coordination with multiple petroleum pipelines and dry utilities in CenterPoint Energy’s corridor was necessary. At a Glance 42-inch Water Transmission Line $8.9 million Construction Cost Markets Municipal Surveying Services Water & Wastewater Program Management Surveying Utilities

US 79 Widening

US 79 Widening Jewett, Texas The DCCM team designed a 10-mile schematic and environmental project in Leon County. The project consisted of widening US 79 from a two-lane section to a four-lane divided section from west of Jewett at FM 1512 to Buffalo. This project developed three alternatives and refined the preferred alternative based on stakeholder input from two public meetings, environmental constraints, and limited right-of-way (ROW). The team worked on developing all environmental technical reports required to obtain environmental clearance for ROW acquisition and utility relocation before the final design. One project challenge involved reintroducing a relief route around the City of Jewett during the 90% schematic design. The DCCM team collaborated with the Emerging Technologies group to devise potential relief routes and create exhibits for the upcoming public meeting. Additionally, the DCCM team generated 3D renderings for downtown design options and collaborated with the City of Jewett to gain consensus from key stakeholders. Another challenge involved two grade-separated railroad crossings with BNSF and UPRR. The UPRR crossing featured a rail siding to the Nucor Corporation plant. To address this, seven alternatives were developed to convert the Nucor Corporation at-grade crossing into a grade-separated crossing, ensuring access to Nucor Corporation plants and CR 347. In coordination with Nucor Corporation and TxDOT, the team worked to find a design solution that accommodated all parties while minimizing interchange construction costs. At a Glance 10 Miles $178 million Construction Cost Markets Transportation Services Transportation Utilities

Shepherd Drive Roadway Improvements – Upper Kirby

Shepherd Drive Roadway Improvements – Upper Kirby Houston, Texas DCCM provided construction management and geographic information system (GIS) services for utility conversion from overhead to underground at Shepherd Drive from US 59 to Westheimer Road. This included utility coordination, inspection, and GIS services for all private utilities. GIS services included 2D and 3D visualizations accessible on desktop and mobile devices, monthly unmanned aerial vehicle data and 3D video footage, pole inventory of overhead facilities, and access to CAD drawings through a GIS File Transfer Protocol website. At a Glance $27.3 million Construction Cost Services Service Markets Market

Texas

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