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Techbrief: Lessons Learned for the Development of Digital As-Built of Aboveground Assets From Colorado Department of Transportation’s Subsurface Utility Program
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2024-10-01
[PDF-599.75 KB]
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Abstract:This Technical Brief examines Colorado Department of Transportation’s (CDOT) subsurface utility program, focusing on the integration of digital as-builts (DABs). The primary objective of this brief is to share insights and lessons learned from CDOT’s efforts to enhance DABs for aboveground utilities and assets. CDOT’s program focuses on efficient utility coordination, precise mapping for design modifications, and real-time access during construction—all of which contribute to cost savings associated with data collection for future projects. CDOT adheres to a set of American Society of Civil Engineers (ASCE) standards, including ASCE 38-22 and ASCE 75-22. The standards provide technical guidelines and a comprehensive framework for utility standards; however; its use is not a Federal requirement. Quality levels and a subsurface utility engineering (SUE) workflow ensure that data are gathered accurately through planning, design, and construction. CDOT’s SUE project lifecycle is complemented by a sophisticated data dictionary architecture that provides a standardized approach to survey and geographic information system (GIS) integration. The agency’s strategic approach extends to the operations and maintenance phase and ensures real-time updates of DAB records into the PointMan Enterprise dashboard.1 A detailed review of the agency’s operations during these phases demonstrates the efficiency gained through the integration of ASCE standards and proactive utility management. This Technical Brief serves as a comprehensive exploration of CDOT’s SUE transformative journey, offering a roadmap that agencies can consider when optimizing DABs in infrastructure management and implementing DABs for aboveground utilities and assets.
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