Surveying and Topographic Monitoring

Reclamation District No. 830 in California is seeking a subcontractor to perform periodic topographic surveys of levee segments using GPS and GNSS technologies combined with digital elevation modeling to detect and monitor settlement, erosion, or deformation. The work focuses on maintaining the structural integrity of levees through precise elevation tracking over time, ensuring compliance with flood control and infrastructure safety standards. Surveys will be conducted at scheduled intervals to establish baseline data and identify incremental changes that could indicate potential risks to the levee system. The contract falls under NAICS code 541370, which classifies it as a geophysical surveying and mapping service, and is targeted for performance in the area with ZIP code 94561. Although specific details on contract duration, budget, or deliverables are not provided, the requirement implies ongoing, repetitive surveying efforts with high-accuracy data collection and reporting. All work must align with industry best practices for geospatial monitoring in critical infrastructure environments, and the project is accessible via a public portal for further information.