McKim & Creed provided advanced and conventional survey technologies to ease roadway congestion on a corridor in Texas.
The corridor of I-35E in Texas that runs through Dallas and Denton counties is one of Texas’ 100 most congested roadways. To ease that congestion, TxDOT is rebuilding the entire 28-mile corridor. The $4.1-billion project is “dedicated to improving mobility…in a safe, efficient, reliable and environmentally sensitive manner,” according to the TxDOT website.
McKim & Creed collected and combined aerial LiDAR and photogrammetry, mobile mapping LiDAR, terrestrial LiDAR and conventional survey into a homogenous set of deliverables along a 16-mile stretch of that project. The firm also provided SUE QL-A and QL-B for eight miles of those 16 miles to provide TxDOT with an accurate assessment of buried utilities.
McKim & Creed collected and combined aerial LiDAR and photogrammetry, mobile mapping LiDAR, terrestrial LiDAR and conventional survey into a homogenous set of deliverables. Nine pairs of primary project control monuments, 83 aerial mapping control panels, and 100 mobile mapping control panels were established via GNSS methodologies to the TxDOT standard. The corridor included 3 multi-level and 27 single-level interchanges as well as areas inundated with water. Aerial LiDAR and photogrammetry were used for primary base mapping and to produce an orthomosaic image. Mobile mapping LiDAR supplemented aerial lidar to safely map paved areas obscured from aerial view by overpasses and other obstructions. Terrestrial LiDAR and GNSS/conventional survey methods were used to map unpaved obscured areas. All work was performed safely with no recordable incidents. Final deliverables included signed and sealed survey control data sheets, seamless digital orthophotos, a 2D MicroStation planimetric file, and multiple 3D MicroStation contour files.