Portfolio Archive - Page 9 of 12

Cedar Bayou Crossing Corridor Study

Cedar Bayou Crossing Corridor Study Harris County and Baytown, Texas DCCM was selected to provide professional services for the proposed Cedar Bayou crossing. The crossing will serve as a critical link for the City of Baytown to ensure the orderly development of the northern part of the city and provide necessary east-to-west mobility to supplement IH 10. The project area was from Hunt Road at Main Street to Kilgore Parkway at SH 146. DCCM provided project management, data collection, existing condition evaluation, alternative analysis, community outreach support, preliminary engineering, geotechnical investigation, subsurface utility engineering, survey, and an environmental analysis. DCCM conducted a corridor study to identify alignment alternatives and assess the project’s feasibility. The study included several aspects to consider and required sufficient information to measure and evaluate a range of viable improvement options. The traffic analysis reviewed traffic and crash data, existing roadways, traffic flow patterns, traffic counts, turning movement counts, and transit and traffic operations. The DCCM team conducted capacity analyses for designated locations and sections of roadways and made recommendations to improve traffic flow. DCCM provided hydrology and hydraulics to support the corridor layout of the proposed roadway. This task used the latest Mapping, Assessment, and Awareness project (MAAPNext) models for Cedar Bayou as developed by the Harris County Flood Control District. DCCM also provided community outreach, public meetings, and City Council meetings. The project concluded with identifying recommended improvements, preliminary plans with several alternatives and their estimated costs, and a preferred alignment. Surveying Services DCCM performed professional surveying services to obtain and review existing lidar data and the limited preliminary ground survey data for the Cedar Bayou Corridor Study. The project spanned 3.7 miles from North Main Street, 3,300 feet south of IH 10 (west tie-in point), to the intersection of SH 146 and Kilgore Parkway (east tie-in point). The latest available lidar data published from USACE and Texas Natural Resources Information System covering the project area to evaluate and perform the following tasks: Data sets were extracted/downloaded into Esri ArcGIS (Pro+3D Analyst tool) and Context Capture/OpenRoads Cross-data checks were performed against public datasets from TxDOT, the City of Baytown, Harris County, and other available online resources. The MicroStation DGN deliverable included: DEM 2D building/structure footprints Roads, highways, and railroads Overhead transmission lines Other visible features within the lidar data Limited field surveying was performed. Field surveying tasks included setting four project control points, performing limited topographic surveying along North Main Street (1,000 feet north and south of the west tie-in point) and SH 146 (500 feet north and south of the west tie-in), and obtaining cross sections along the existing railroad running through the project. Field surveying also included determining the elevations of the existing railroad running at the railroad bridge over SH 146 and confirming (spot-checking) the lidar data in several accessible areas. The survey data was based on the NAD 83, Texas Coordinate System, South Central Zone (4204) CORS adjustment. Elevations were based on the NAVD 88 2001 adjustment relative to the lidar data. The survey information was provided in MicroStation Select Series 10. At a Glance 3.7 Miles $140 million Construction Cost Markets Transportation Surveying Services Transportation Surveying Utilities Water & Wastewater

Bayland Island Development

Bayland Island Development Baytown, Texas DCCM provided the surveying associated with the development of this 27-acre peninsula (island) located south of SH 146, just east of the Fred Hartman Bridge in the City of Baytown. Close coordination was conducted with the City of Baytown officials, title companies, and developers. The survey included detailed abstracting of a chain of title for mineral leases, pipelines, and real property records. The firm performed shoreline boundary surveys of tidally influenced areas, boundary surveys of upland areas, and topographic surveys of the island. Additionally, DCCM prepared an American Land Title Association/National Society for Professional Surveyors survey of the island and roadway access from SH 146, as well as a 6.8-acre portion of the island for development. The firm also coordinated utility and access easements and prepared and coordinated the platting of the entire project. An existing marina sports bar and grill facility is located on the island. Locating and identifying existing utility easements and utilities that served the island was difficult, especially a non-visible sanitary sewer force main. The DCCM office personnel and field crew worked closely with the City of Baytown’s public works department, subsurface utility engineering consultants, and others to excavate and locate the buried utility in various places and obtain an accurate location and depth of the line. Another challenge faced during the project was coordinating with engineers, architects, city planners, and various city departments. DCCM implemented a solution by conducting regularly scheduled team progress and scheduling meetings. These meetings were crucial in ensuring the project remained on track and continued progressing productively. Additionally, weekly progress reports were provided to the City of Baytown to inform them about the project’s status. Through this experience, it was learned that regular meetings with the entire team not only help prevent potential issues but also promote organization and accelerate the project’s overall progress. At a Glance 27 Acres $140,000 Survey Cost Markets Surveying Services Surveying

Piper Road Drainage Improvements

Piper Road Drainage Improvements Brazoria County and Pearland, Texas DCCM provided design plans and specifications for a bid-ready submittal package that included comprehensive drainage and minor roadway improvements for Piper Road. The 2,900-foot project extended from FM 518 (Broadway Street) on the north to Fite Road on the south. The project included an asphalt overlay, along with subgrade repairs where necessary, based on visual cracking and pavement failure. The design reduced the watershed area for the portion of Piper Road draining to the north, which diminished a recurring ponding problem at FM 518. The majority of the roadway now drains to Fite Road on the south using storm sewers underneath the former ditches. Driveway culverts were eliminated for the storm sewers draining to the south and were replaced with area drains between the driveways for direct drainage into the new storm sewer system. Using storm sewers in this manner eliminated the need to do costly utility relocations or ROW acquisition. At about the same cost as acquiring ROW and moving utilities, this concept greatly reduced the time required for project completion and the need to disrupt the front yards of homes along Piper Road. Existing, significant trees also did not need to be removed. Existing water and sanitary sewer main lines and services were either protected or replaced to accommodate the new storm sewers. We leveraged our relationship with CenterPoint Energy to expedite relocations with the proposed storm sewer before construction began, keeping the project on schedule. The project significantly improved drainage compared to the existing roadway ditches. At a Glance 2,900 Feet $1.2 million Construction Cost Markets Municipal Services Water & wastewater

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

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

Pelican Causeway Survey

Pelican Causeway Survey Galveston County 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

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. Services 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

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

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

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

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