Portfolio Tag: Texas

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

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

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

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

Avenue S Rehabilitation

Avenue S Rehabilitation Galveston County, Texas 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

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

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

Aerial Fiber Route Design Verification and Documentation

Aerial Fiber Route Design Verification and Documentation Harris, Fort Bend, Brazoria, Galveston, and Waller Counties, Texas 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 included aerial fiber route pole attachment measurements and documentation, pole attachment photography, spreadsheet database development, verification of design compliance, and pass/fail analysis of attachments based on NESC clearance standards. At a Glance 2024 Construction Completion Markets Power Services Utilities

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