Portfolio Archive - Page 8 of 12

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

Avenue S Rehabilitation

Avenue S Rehabilitation Galveston County DCCM provided the design of 8,600 linear feet of roadway reconstruction along Avenue S from 53rd Street to Seawall Boulevard. The paving cross-section comprised two travel lanes with two outside parking areas. The project design included replacing 8,900 linear feet of water line, including branches and intersections along the route, crossing intersections that were previously reconstructed for other concurrent projects. Additionally, a 15-inch sanitary sewer was replaced, stretching from 35th Street to 33rd Street, including branches and intersections. Our assessment of the drainage system along the corridor and side streets enabled us to determine the most effective methods for enhancing drainage efficiency while removing bridge blocks. The flat terrain of Galveston provided grading challenges, and with our detailed 3D grading abilities, the shallow underground storm system had the proper cover under the road and for some instances where standard cover was not achievable, it was discovered and known during the design or it was identified during construction and the design remedies were ready before construction was delayed. Our subconsultants performed geotechnical, surveying, SUE, environmental, and inspection services for the project. DCCM provided construction phase services for the City of Galveston and collaborated with the contractor to ensure the design intent was effectively implemented. The final product of the road was excellent, and the contractor successfully constructed the road and storm sewer system with minimal RFIs and minor adjustments to the road, sidewalks, and storm sewer system grading. All meetings were accompanied by a well-organized agenda and meeting minutes, which included detailed action items to be completed by the next meeting. This attention to detail and accountability helped lead the project to a successful completion and limited citizen complaints. Surveying Services DCCM supported land surveying services for 2.5 miles of Avenue S from 53rd Street east to Seawall Boulevard Drive. Tasks included right-of-way (ROW) determinations, topographic surveying, and subsurface utility surveying to support engineering design. The project included a full-depth replacement of existing pavement and utilities, including water lines and subsurface sanitary and storm sewer systems. Approximately 275 parcels were abstracted to support ROW determinations and graphically depict property ownership. Survey control was established, including ground targets for aerial triangulation of UAS/drone imagery acquired by a subconsultant. Lidar data was also collected, post-processed, and delivered to us for analysis and integration into our survey. Supplemental ground surveying was performed to support the validation of the imagery and lidar data. Final deliverables included 3D mapping in Civil 3D format and rectified orthomosaic imagery of the project extents. SUE Services DCCM provided SUE services along 8,600 linear feet of water and sanitary sewer line from Avenue S from 53rd Street to Seawall Boulevard. The SUE QL-B designation revealed more than 56,000 feet of utilities in that area. As in all SUE projects, the utility mainlines were designated. This project was unusual because all utility services were also designated so that the designers would have substantial utility information and the best chance to protect the utilities in place—this required electronically traceable duct runners, fish tapes, and electromagnetic sweeping. At a Glance $9.25 million Construction Cost $146,000 Survey Cost 86,000 Linear Feet of Sanitary Sewer Line 56,000 Feet of Utilities Markets Transportation Surveying Services Transportation Program Management Surveying Utilities Water & Wastewater

FM 1097 Widening, Segments 1, 2, 3

FM 1097 Widening, Segments 1, 2, and 3 Montgomery County, Texas This project was a joint effort between Montgomery County and TxDOT. It involved widening an existing two-lane road with a dedicated left-turn lane into a four-lane road with a dedicated left-turn lane. DCCM was responsible for identifying utilities, coordinating design, reviewing permits and utility agreements, and overseeing relocation. Utility adjustments were needed for all utilities due to most right-of-way being taken on one side, and DCCM worked closely with right-of-way to prioritize parcel acquisitions so utilities could complete adjustments without delays. Utilities included Entergy, Kinder Morgan pipeline, CenterPoint Energy, numerous telecommunication lines, and the City of Willis water and wastewater. DCCM worked with the design team to mitigate utility conflicts that could be costly or require long lead times for adjustments. Our team set up several utility workshops among the roadway design team, the utility owner, and the construction area office to work through the details to protect the pipeline in place and avoid a costly relocation. Other coordination efforts included working with the design team on traffic control phasing to give utilities more time for adjustments while allowing the roadway contractor to continue working without delay. At a Glance $325,000 Project Cost $48 million Construction Cost Markets Power Services Utilities

SH 288 Bridge Improvements

SH 288 Bridge Improvements Brazoria County, Texas TxDOT awarded a statewide indefinite deliverable contract for bridge engineering to DCCM for bridge engineering services. For work authorization No. 1, DCCM was awarded a project in Brazoria County to prepare plans, specifications, and estimates for bridges at three intersections along SH 288. The project required the design of new overpass structures at the intersections of SH 288 with CR 57 and CR 64, the widening of an existing structure at SH 288 and CR 56, and two frontage-road creek-crossing bridges. The structural designs ranged from TxDOT-standard multi-column TxGirders for stream crossings to green ribbon overpasses with U-beams and inverted tees with skews, to modified details with TxGirders. The designs addressed utility conflicts, wetland and stream impacts, skewing, and embankment settlement mitigation. We provided bridge layout plan sheets for each bridge and a comparative cost analysis. The team set bridge spans and limits to achieve optimal beam design and vertical clearance. CR 57 Constructed new location CR 57 cross-street bridge (DCCM) Added ramps Added auxiliary lanes Constructed two frontage road bridges CR 64 Constructed new location CR 64 cross-street bridge (DCCM) Added ramps Added auxiliary lanes CR 56 Widened the existing CR 56 bridge (another consultant) Added frontage roads Added auxiliary lanes Design aspects of the project included surveying, geotechnical engineering, bridge design, roadway design, drainage, environmental engineering, and subsurface utility engineering. As the prime provider of the project, DCCM held an e-mail version of the design concept conference before the 30% submittal. The project milestones were 30%, 60%, 90%, 95%, 100%, and the final milestone. DCCM’s engineers coordinated closely with the adjacent segment engineers to assure continuity of design across segment lines. DCCM presented several typical section options to TxDOT prior to beginning the design to ensure TxDOT’s needs were prioritized. The chosen roadway section included a 16-foot median, four 12-foot lanes, two 12-foot shoulders, and a 5-foot, 6-inch sidewalk with C223 rail. The overall roadway width is 103 feet. The project included converting two-way frontage roads to one-way operations. The team used Atlas 14 to determine the floodplain width for the frontage road bridges over West Fork Chocolate Bayou at CR 5. At a Glance $57.2 million Project Cost Markets Transportation Services Transportation

IH 35 at Ronald Reagan Boulevard Bridge

IH 35 at Ronald Reagan Boulevard Bridge Williamson County, Texas The project included schematic development and plans, specifications, and estimates for realigning Ronald Reagan Boulevard into a divided roadway with two one-way alignments. It included the removal of the existing two-way bridge over IH 35 and the construction of two new one-way bridges over IH 35, while continuing to provide connectivity to CR 247 and CR 311. Ronald Reagan Boulevard improvements started 2,300 feet west of IH 35 and proceeded east to IH 35, and continued east for 500 feet. Beginning at CR 247, the new Ronald Reagan Boulevard tapers to a divided roadway (two lanes in each direction), with one-way eastbound and westbound alignments and paved shoulders. In the future, Ronald Reagan Boulevard will be widened to four lanes from SH 195 to CR 247, providing a major artery from Georgetown to IH 35. The project included new safety lighting, retaining walls on IH 35 for the new bridge abutments, construction of auxiliary lanes on IH 35 under the new bridges, and drainage improvements along Ronald Reagan Boulevard, the frontage roads, and IH 35 mainlanes. The offset distance between the east- and westbound alignments of Ronald Reagan Boulevard also provided an adequate span for future freeway construction and additional widening of the boulevard. Public involvement, utility coordination, private land and business owners, the City of Jarrell, emergency service providers, TxDOT, Williamson County, the Federal Highway Administration, the Texas Commission on Environmental Quality, and other stakeholders were important to project success. At a Glance $15.7 million Project Cost Markets Transportation Services Transportation

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

Denton County Fiber Audit Documentation

Denton County Fiber Audit Documentation Denton County, Texas DCCM performed a fiber audit for Denton County’s single-mode fiber network, including auditing splice enclosure configurations, fiber patch panel configurations, and fiber-optic cable routing. The project involved over 70 miles of fiber audits with field verification to document patch panel and splice enclosure configurations. Our team provided GIS Esri work to update the Denton County Crescent Link Database with the fiber audit information for the splice enclosure and patch panel configuration documentation. SERVICES PROVIDED Existing fiber network audit Documentation of splice enclosures and patch panel configurations Measurements Redlines on prints Field verification and documentation Photos and identification of splice enclosures, patch panels, and telecommunications bay/racks Created Geospatial reference in GIS using Esri tools Update Crescentlink database with fiber audit documentation At a Glance 70 miles Fiber Audit 2024 Construction Completion Markets Power Services Utilities

Aerial Fiber Route Design Verification and Documentation

Aerial Fiber Route Design Verification and Documentation Harris, Fort Bend, Brazoria, Galveston, and Waller Counties DCCM performed an as-built field survey of the aerial fiber route to verify that it was installed according to design at the correct attachment height. We obtained and documented the heights of all telecommunications cables and electrical conductors in a database spreadsheet. We analyzed the field data for compliance with the design. We created a pass/fail analysis indicating which fiber attachments complied with the design and the National Electrical Safety Code® (NESC) clearance standards. Our team determined which fiber attachments failed and did not comply with the design and NESC clearance standards. SERVICES PROVIDED Aerial fiber route pole attachment measurements and documentation Pole attachment photos Spreadsheet database documentation Verification of design compliance Analysis of pass/fail for attachments meeting NESC clearances At a Glance 2024 Construction Completion Confidential Project Cost Markets Power Services Utilities

League City GPS Control Points

League City GPS Control Points Galveston and League City, Texas In late 2021 and early 2022, DCCM conducted accurate horizontal and vertical GPS control surveying to update the City of League City’s GPS Survey Control Monument System. The existing 36 control monuments were recovered and reobserved, and observed or missing monuments were reset. Multiple redundant RTK GPS observations were performed at each point using the Hexagon (Leica) HxGN SmartNET Real-Time Network, with a minimum of three different satellite constellations. The disturbed and missing points were reset with ¾-inch aluminum deep-sectional rods in 6-inch PVC sleeves in concrete. The rods were driven to refusal or a maximum depth of 27 feet. Steel access covers marked the League City survey control point, and point designation (point number/identifier) was installed on each new point. The updated and new data obtained on each existing and new point consisted of the following: Horizontal datum: NAD 83, CORS adjustment (2011), EPOCH 2010.00 in U.S. survey feet, Texas Coordinate System, South Central Zone 4204. North and east coordinates were reported in grid values and latitude/longitude. Mapping angle, scale factor, and combined scale factor were also provided. Vertical datum: NAVD 88 CORS adjustment with GEOID Model 18. Elevations were reported in U.S. survey feet. A detailed survey report was provided, which included: Detailed summary with background information (monument history) and survey methodology used Overall project vicinity maps showing the location of points SmarNet CORS information sheets Final coordinate list New survey control data sheets At a Glance 36 Control Monuments $63,350 Survey Cost Markets Surveying Services Surveying

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