Geospatial Project Information Management System at Herbert Hoover Dike-Paper

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Geosyntec Consultants developed a geospatial Project Information Management System (PIMS) for the Herbert Hoover Dike cutoff-wall project in Florida. The 43,000-foot wall is being constructed using Cutter Soil Mixing (CSM), which creates deep, rectangular panels. The PIMS supports the contractor and the U.S. Army Corps of Engineers (USACE) in collecting, reviewing, and documenting construction and quality data.<br /><br />The system integrates automated drill-rig data and manually entered information—including excavation geometry, verticality deviations, slurry properties, laboratory test results, photographs, and reports—along with borehole logs and owner-collected quality assurance (QA) data. Data are stored in an enterprise database as three-dimensional features, enabling calculation of panel geometry, verticality, and overlap.<br /><br />Secure web-based GIS viewers provide plan, profile, and 3D views. Users can inspect construction progress, examine panel tolerances and overlaps, view quality-control (QC) trends, and compare excavations with geological and geotechnical information. The tools also support searching, data export, and access to related documents. Nightly processes generate progress drawings and CAD or MicroStation as-built drawings, while a database mirror provides offline access to current data.<br /><br />During construction, the contractor uses the PIMS to plan excavation, monitor progress, identify actual or potential non-compliance, and produce project deliverables efficiently. USACE uses it to track progress, compare QC and QA results, and independently verify panel performance. The system also provides a lasting archive of project data and as-built conditions, with potential value for comparing construction methods and performance across future projects.

Keywords

Geospatial PIMS

Herbert Hoover Dike

cutoff-wall project

Cutter Soil Mixing

construction quality data

USACE

GIS viewers

3D panel geometry

quality assurance

as-built drawings