SFWMD Broward County Seepage Management Area WCA 3A and 3B Aerial Lidar | Weston to Miami, FL
Municipal
Project Details:
Caulfield & Wheeler, Inc. (CWI) was contracted by the South Florida Water Management District (SFWMD) to provide comprehensive Professional Mapping and Surveying Services in support of future engineering design, including Florida Power & Light (FPL) infrastructure. Services included a Topographic Survey, Pedestal Elevations, Cross Sections, Survey Drawings, Electronic Datasets, Review, Final Deliverables, and advanced UAS Aerial LiDAR Laser Scanning with Photogrammetry. The scope of work encompassed surveying approximately 153 FPL towers, associated pads, and access routes. Each pad was surveyed to create a detailed digital terrain model, capturing all significant grade breaks, such as the tops and toes of slopes, along with sufficient topographic detail for perpendicular cross-sections. In addition, reconnaissance of NGS control points, topographic surveys of access routes, and the survey of seven existing drainage structures or culverts were conducted, with data collected on pipe sizes, top elevations, and invert elevations as specified by FPL and SFWMD. Wire crossings were observed and plotted in both plan and profile views to ensure accuracy and compliance.
Services:
Caulfield & Wheeler, Inc. provided the following Surveying services:
- Professional Surveying & Mapping
- Aerial Lidar
- Photogrammetry
- Drafting
Project Firms:
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- Client: South Florida Water Management District
- Surveyor: Caulfield & Wheeler, Inc.
- SBE Subconsultant: Whidden Surveying & Mapping
Pedestal Elevations were recorded by surveying each concrete FPL pedestal at both the base and the top of the level concrete. Each pedestal was measured, photographed, and documented in table format for clear reference. Cross sections were performed perpendicular to pedestal locations, extending 100 feet beyond the toe of the slope on either side of each pad into natural ground conditions, ensuring a complete and reliable dataset.
Survey drawings and final reporting provided detailed documentation of the project. Deliverables included a cover sheet with project location sketches, surveyor’s notes, legends, and certifications; an overall key sheet with aerial imagery, NGS control points, and Sec./Twp./Rge. lines; and topographic plan view sheets depicting survey results overlaid with aerial images. Approximate right-of-way limits, as provided by SFWMD, were incorporated into the drawings in AutoCAD format. Cross-section sheets further illustrated pad cross sections, profiles, pedestal locations, and identification numbers. This work reflects CWI’s ability to deliver precise, data-rich survey products tailored to the specialized requirements of SFWMD and FPL infrastructure projects.
CWI’s UAS Operations Department utilized a Watts Innovations Prism with a GeoCue True View 635 Riegl MiniVUX3 sensor to collect aerial lidar and photogrammetry data. The aerial lidar data were utilized to extract a profile of the centerline of the access routes and contours of the pedestal pads. A georeferenced aerial orthomosaic was created using over 100 ground control points collected by Whidden Surveying & Mapping during traditional data collection fieldwork.
Principal In Charge: David P. Lindley, PLS
Project Manager: Tom Whidden, PSM, & Andrew L. Beckwith, CST I
SBE Subconsultant: Whidden Surveying & Mapping
Project Address: 7101 U.S. 27, Southwest Ranches, FL 33332
Acres or LF: 14 miles or 75,000 LF
