Portfolio Tag: Texas

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 included an audit of the existing fiber network; field measurements and verification; redlined plans; documentation of splice enclosure and patch panel configurations; and photographs identifying splice enclosures, patch panels, and telecommunications bays and racks. The team also created geospatial references using Esri GIS tools and updated the CrescentLink database with the fiber audit documentation. At a Glance 70 miles Fiber Audit 2024 Construction Completion Markets Power Services Utilities

Beltway 8 High-Mast Illumination

Beltway 8 High-Mast Illumination Harris County, Texas DCCM provided surveying services for a high-mast illumination design project along Beltway 8 for the Harris County Toll Road Authority (HCTRA) from November 2018 through September 2019. For this project, Baseline coordinated a low-altitude aerial lidar flight along 25 miles of Beltway 8, from north of Lansdale Drive to east of IH 45. This 25-mile segment was divided among four survey consultants, and our firm was responsible for 5 miles from north of Lansdale Drive to Briar Forest Drive. DCCM verified the existing horizontal and vertical controls and established new controls, including primary and secondary aerial controls. Our subconsultant, DAS, used this control for the aerial lidar flight, and DCCM field crews used it to acquire supplemental survey data. GPS set control, and digital differential levels were run through all control points to ensure vertical accuracy. Control index sheets were also provided. Close coordination with DAS and the other three survey consultants was maintained to ensure a seamless and consistent product was delivered. DCCM played a vital role in cost savings for HCTRA by suggesting a single flight for the entire project rather than each consultant acquiring their own flight data. Coordination among the consultants was also ongoing to ensure the survey and aerial control were accurate and relevant. Additionally, DCCM provided supplemental field surveying to map surface features, obscured areas, flowline elevations, pipe sizes, and flow directions for storm drainage, as well as to capture all other features and utilities not captured by the aerial lidar. A Texas811 (one-call) was initiated to have utilities marked and flagged; abstracting and research were performed to obtain the latest ownerships of adjoining parcels; ROW boundaries were determined based on provided record maps, found monumentation, and deeds; and plats were obtained through research for DCCM’s entire segment. DCCM staked the project, and weekly progress reports were provided to the HCTRA Project Manager, enabling our team to execute work in a professional and timely manner. At a Glance 25 Miles Markets Surveying Services Surveying

Addicks Substation Telecommunications Site Elevated Platform

Addicks Substation Telecommunications Site Elevated Platform Houston, Texas DCCM performed civil/structural and telecommunications engineering and designed a telecommunications site with an elevated platform for a 10-foot by 12-foot telecommunications shelter on an elevated 22-foot by 36-foot by 12-foot-high structural steel platform. The scope of work included the engineering and design of the telecommunications site and the creation of site plans, fiber route plan and profiles, plans of the telecommunications shelter, generator, propane tank, ice bridge connection to the tower, fiber route, and electrical power conduit connections. We provided design from the telecommunications shelter to the substation control rooms, existing backbone fiber ring connections passing through the substation to insert the telecommunications site onto the network, completing telecommunications-specific power designs for generators, UPS, battery, charger, loading, grounding, breaker panel, wire and fuse sizing, all applicable calculations, etc. Our team provided the appropriate hardware in accordance with the client’s design standards. The project included complete grounding and bonding design for the ground ring, creating site plans, grounding system plans and details for the elevated platform, telecommunications shelter, equipment, and tower in compliance with CenterPoint Energy, manufacturer, and industry standards. The design of the structural steel and concrete engineering and foundation included structural engineering, design, and calculations for concrete pier foundation supports and reinforcement, structural steel fabrication drawings, isometric platform drawings, stairs, and handrails. At a Glance 10-foot by 12-foot Shelter Size 2024 Construction Completion Markets Power Services Utilities

Dogwood Trail Boundary Survey

Dogwood Trail Boundary Survey Tyler County, Texas DCCM determined boundaries for a privately held timber company tract of land and performed research of Texas General Land Office archives, Hardin County records, and private survey records. Fieldwork in the area determined the location of existing occupation, monumentation, topographic features, and natural features. The evidence was analyzed and compared with the recorded evidence, and, where appropriate, lines were marked with lathes that were intervisible. Plats that included trails and natural features for park use and metes and bounds were prepared for use in the land transfer. The resulting 40-acre partition was transferred to the Big Thicket Natural Heritage Trust. At a Glance 40 Acres $7,000 Survey Project Cost Markets Surveying Services Surveying

Marion County Boundary Survey

Marion County Boundary Survey Marion and Jefferson Counties, Texas DCCM determined the boundary of an original survey in Marion County and the boundary determination of numerous tracts of land surrounding and adjacent to the subject survey. Due to natural and artificial changes in the area since the 1800s, the project required extensive research outside the normal record research involved in any survey project. Research was performed in the Texas General Land Office archives, Marion County records, and private survey records. Historic research of the area was also necessary, including historical aerial photography and topographic maps. Fieldwork utilized existing occupation, monumentation, and natural features as called for when the grants were originally laid out. Evidence was analyzed and compared to records. A report and plat were prepared, setting out all boundaries, the issues affecting the area, and the topographic features. Project Manager Nedra Foster Townsend, LSLS, RPLS, and Texas Parks and Wildlife Department personnel attended meetings with surrounding landowners to explain boundaries. At a Glance Boundary Survey Historic Research Markets Surveying Services Surveying

Neches Wildlife Management Area Tract Acquisition

Neches Wildlife Management Area Tract Acquisition Cherokee County, Texas DCCM was selected to survey the boundaries of 250 acres in Cherokee County, which included several miles of Neches River gradient boundary, a river cut-off area, highway frontage, oil and gas operations, utility easements, and a railroad transecting the tracts. DCCM requested the right of entry, the setting of control, the location of existing monumentation, and the setting of new monumentation where needed, preparation of plats, and legal descriptions for transactions. DCCM conducted deed research to ascertain current record ownership and parent tracts, as well as easements, utilities, and oil and gas records. Records from TxDOT and the Missouri Pacific Railroad were acquired. Research on original grants was conducted using GLO archival records. Historic aerial photographs and topographic maps were used to determine the nature of changes in the river course. We set benchmarks that other entities can access and rely on for GPS-based transactions. The gradient boundary was surveyed on the Neches River in accordance with Oklahoma v. Texas, 260 US 606 (1923). A cut-off of the river (also a county line) had occurred, so this required ascertaining whether the state maintained a claim to the cut-off and to the river’s flow. All corners, lines, and improvements were included in this survey. Plat and metes-and-bounds were prepared for the three tracts comprising 250 acres. At a Glance 250 Acres $75,400 Survey Cost Markets Surveying Services Surveying

Pelican Causeway Survey

Pelican Causeway Survey Galveston County, Texas DCCM performed surveys in connection with a proposed route for a new Pelican Causeway from Galveston Island across to Pelican Island. Nedra Foster Townsend, LSLS, RPLS, served as Licensed State Land Surveyor (LSLS) for this project, and Joe Mattox, LSLS, RPLS, served as Project Manager. DCCM’s tasks included researching both current and historic data to evaluate natural and artificial changes to the landscape; research on court cases that affected the boundary locations; calculations of tidal datums for which we relied on Tide Gauge 8771450 Galveston Pier 21; survey of tidal datums and location of state submerged tracts; establishment of new control and recovery of existing control; survey of affected tracts and monumentation of new take parcels; topographic surveys of take areas; metes-and-bounds descriptions of each take parcel; and mapping proposed right-of-way, shoreline survey, and take parcels. At a Glance Coastal and Tidal Survey 2023 Completion Date Markets Surveying Services Surveying

Aerial view looking straight down at a multilane highway with a new crosswalk intersecting both directions of travel lanes

FM 2818 (Harvey Mitchell Parkway) Improvements

FM 2818 (Harvey Mitchell Parkway) Improvements College Station, Texas The FM 2818 (Harvey Mitchell Parkway) project in College Station showcases coordinated planning and innovative design to address regional growth and evolving transportation needs. DCCM led efforts with the City of College Station, TxDOT, Texas A&M University, and Easterwood Airport to improve corridor operations and support future expansion. DCCM’s scope included topographic surveying, ROW and easement identification, corridor and traffic analysis, conceptual alternatives analysis, environmental documentation, public involvement, subsurface utility engineering (SUE), and management of eight subconsultants. The team completed both schematic and PS&E phases, producing a geometric design from Wellborn Road to F&B Road and transitioning efficiently to construction documents by maintaining consistent staff and project management. A detailed topographic survey was completed for the 1.8‑mile corridor, covering an unusually large 80‑acre ROW. Prior baseline data from the 1970s and earlier DCCM utility surveys ensured accurate property and easement mapping. A comprehensive corridor and traffic analysis showed conventional intersections would not meet long‑term capacity needs. DCCM evaluated additional conceptual alternatives and identified a “superstreet” (Restricted Crossing U‑turn) as the preferred solution, reducing signal phases, improving traffic flow, and preserving flexibility for future controlled‑access upgrades. Environmental constraints along White Creek required careful grading and barrier design to minimize impacts on wetlands and floodplains. DCCM kept impacts below permitting thresholds and avoided additional ROW acquisition. DCCM also performed extensive SUE Quality Level (QL) B investigations covering more than 265,000 linear feet of utilities, revealing critical conflicts. Twenty-four QL-A test holes confirmed existing conditions and guided necessary design refinements. At the same time, additional QL-B work on side streets ensured a complete understanding of utility impacts despite tight timelines and traffic-control constraints. The project faced several significant design challenges, including a major underground electric duct bank that conflicted with proposed roadway and drainage improvements. Through SUE QL-A investigations and coordination with the City of College Station and TxDOT, the team adjusted the drainage while leaving the duct bank in place, thereby avoiding costly relocations. The late addition of the Jones‑Butler Road overpass required rapid schedule and design modifications without affecting the letting date. At a Glance 40% Reduction in Corridor Travel Times $57.6 million Construction Cost Markets Transportation Environmental Services Transportation Surveying Utilities

SH 249 (Tomball Tollway), Phases I and II

SH 249 (Tomball Tollway), Phases I and II Tomball and Montgomery County, Texas DCCM was contracted by the Harris County Toll Road Authority (HCTRA) as the Program Management Consultant (PMC) for the design and management of both preliminary and final project designs, as well as construction management and inspection services for Phase II. We developed a project feasibility assessment, which resulted in the SH 249 (Tomball Tollway), Phases I and II engineering feasibility report, and served as the basis for the final design. On its first day of operation, eager toll users doubled the projected 17,000 daily toll transactions, cutting traffic on the existing frontage road in half. Funded entirely with toll road revenue paid by drivers who choose to use the Harris County toll road system, the final construction will extend the toll road into Montgomery and Grimes Counties to SH 105, streamlining trips to and from rapidly growing Grimes County and College Station. Phase I: Spring Cypress Road to FM 2920 This project provided travelers with four main lanes in each direction and was constructed between the existing TxDOT northbound and southbound non-tolled frontage roads. As PMC for HCTRA, DCCM completed an aggressive 9-month design program to deliver plans, specifications, and estimates (PS&E) for HCTRA to bid and construct this phase. DCCM provided leadership, schedule adherence, quality assurance, and oversight to 17 consultants, completing the PS&E for four new toll lanes in each direction along a 6-mile stretch of SH 249, adding five new bridges, retaining walls, and a drainage system that mitigates flooding. Drivers may now bypass seven stoplights while the frontage roads remain toll-free. All milestone submittals were met on time, and the project was constructed in only 16 months and under three construction contracts. Phase I was open to traffic in April 2015 and is exceeding all revenue forecasts. Phase II: FM 2920 to Spring Creek (Harris/Montgomery County line) Design preparations for Phase II began in October 2014 with design revisions to the TxDOT 2006 SH 249 Schematic. As in Phase I, DCCM was the PMC for the design of four-lane toll lanes in each direction, adding three-lane frontage roads on both north- and southbound approaches, five major bridges, flood-mitigating storm sewer detention, a collegiate practice field, and equestrian and bike trails. Services also included computing cut-and-fill quantities for roadway sections, concrete and reinforcement steel quantities for bridge deck pours, and payments for such pours on the contractor’s pay estimate. DCCM monitored the roadway excavation, subgrade preparation, concrete milling, embankment placement for abutments, installation of drill shaft and foundations, concrete beam placement, asphalt pavement placement, bent footings, column, cap pours, reinforced earth walls, 18- to 36-inch reinforced concrete pipes, and various concrete box culverts. Our team oversaw construction management and inspection services for this segment of the project. Phases I and II of the SH 249 (Tomball Tollway) project included environmental investigations and permitting, survey/ROW mapping, utility identification and assessment, subsurface utility engineering, and hydrologic and hydraulic modeling and detention pond design. DCCM also provided construction phase services for Phase II and the direct connectors at SH 99 (Grand Parkway). Mainlanes, Phase I, Section 1 – Montgomery County MCTRA selected DCCM to prepare PS&E for mainlane and ramp construction for a 0.4-mile section of tollway north of Tomball, Texas. The project scope included roadway geometric design, traffic control plans, removal plans, drainage plans with both open and closed systems, SWPPP, cross-sections, general notes, specifications, and construction cost estimates. The DCCM team coordinated with both adjacent designers on the Montgomery County segment and with the design and construction teams of the Harris County segment to the south to deliver a synchronized product that minimized impacts to travelers and adjacent property owners and reduced overall project costs. At a Glance $101 million Phase I Construction Cost $99 million Phase II Construction Cost Markets Transportation Services Transportation Utilities Surveying Water & Wastewater

Brays Bayou Federal Flood Control, Multiple Channel Improvements, and Bridge Replacements

Brays Bayou Federal Flood Control, Multiple Channel Improvements, and Bridge Replacements Houston, Texas DCCM was contracted by HCFCD to provide engineering services for three separate projects for Brays Bayou. Channel Modifications, Discrete Segment 109 – DCCM evaluated the impact of the proposed channel widening on the existing foundation of eight bridges. DCCM also designed soil-nail and gravity retaining walls to protect the bridge abutments and to stabilize the bayou banks. Additional services included preparing a structural analysis of the proposed walls per HCFCD criteria, PS&E, force mains relocation design, relocation and replacement of existing storm sewer flap gate boxes, and an updated evaluation of the previous IH 610 bridge engineering report. Services also included an alternative final design, evaluation of existing bridge foundations’ capacity, and a recommendation on soil excavation impact. Telephone Road, Lawndale Street, South 75th Street, and Almeda Road Bridge Replacements – DCCM provided preliminary and final design and bid and construction phase services for the replacement of the four bridges. DCCM investigated the site, reviewed record drawings and existing utilities, and conducted a topographic survey of the existing channel and bridges to supplement the data. DCCM assisted with the coordination of lane configurations and sidewalk widths to determine typical bridge sections and prepared exhibits showing alternatives for each bridge. DCCM prepared TCPs, local drainage design, SWPPP, a drainage area map, hydraulic calculations, and drainage standards. Stella Link Road and Ardmore Street Bridge Replacements – DCCM provided the design, coordination, scheduling, and PS&E for the replacement of the existing Ardmore Street bridge and addition of a new span to the Stella Link Road bridge. The project increased the hydraulic capacity of Brays Bayou by expanding the cross-sectional area under the bridges. The new bridge at Ardmore Street provided a U-turn, wider lanes, and sidewalks for community connectivity. The project included a compressed schedule to meet federal funding requirements, environmental issues, and utility coordination due to gas lines, storm sewer, gravity and force main sanitary sewers, and electrical and water lines on the bridges. At a Glance $11 million Discrete Segment 109 Construction Cost $23 million Telephone Road, Lawndale Street, South 75th Street, and Almeda Road Bridge Replacements Construction Cost $23 million Stella Link Road and Ardmore Street Bridge Replacements Construction Cost Markets Transportation Services Transportation