What Is an As-Built Survey and When Is It Needed?
Learn what an as-built survey is, its importance in Florida land development, and when it’s required. Discover how it differs from record drawings and its role in project completion.
Defining an As-Built Survey
An as-built survey is a detailed survey that documents the actual conditions of a construction site after the completion of a project. Unlike design plans, which represent intended construction, an as-built survey captures what was actually built. This includes precise locations of utilities, pipe inverts, finished grades, elevations, structures, and any encroachments. As-built surveys are distinct from as-built or record drawings, which are typically prepared by engineers or architects to reflect changes made during construction. The survey provides a physical verification of these changes.
Key Elements Captured in an As-Built Survey
Common As-Built Use Cases and Requirements
| Use Case | Requiring Entity | Certified Elements |
|---|---|---|
| Certificate of Occupancy | Local Building Department | Building corners, elevations |
| Permit Closeout | Regulatory Agency | Utility locations, stormwater facilities |
| ERP Certification | SFWMD/SWFWMD | Stormwater control structures |
| FDOT Acceptance | Florida Department of Transportation | Pavement, drainage structures |
| Utility Acceptance | Utility Provider | Utility inverts, connections |
An as-built survey captures several critical elements that are essential for verifying construction accuracy: Utility locations and pipe inverts Finished grades and elevations Structures and building corners Pavement and stormwater facilities Control structures and any encroachments These elements ensure that the constructed project meets the design specifications and regulatory requirements.
When Is an As-Built Survey Required?
As-built surveys are required at various stages of the project lifecycle, particularly at the completion phase. They are necessary for: Obtaining a certificate of occupancy Agency or permit closeout SFWMD/SWFWMD ERP as-built certification FDOT acceptance Plat or condominium documents Lender and title requirements Easement verification Utility acceptance by the provider FEMA elevation certificates These requirements ensure that the project complies with all necessary regulations and standards.
Who Performs an As-Built Survey?
An as-built survey must be conducted by a Florida-licensed Professional Surveyor and Mapper. This ensures that the survey is accurate and meets the standards required by regulatory agencies. The surveyor uses advanced methods such as RTK GPS, total station, and drone/LiDAR to achieve high accuracy.
Methods and Accuracy of As-Built Surveys
The accuracy of an as-built survey is paramount. Surveyors employ various methods to ensure precision: RTK GPS for real-time positioning Total station for precise angle and distance measurements Drone/LiDAR for aerial data collection These methods provide the necessary accuracy for the survey to be used in regulatory compliance and project certification.
Certified Deliverables and Engineer’s Certification
The deliverables from an as-built survey include certified survey maps and reports that document the actual conditions of the site. These deliverables are crucial for the engineer’s certification of completion, which confirms that the project has been constructed according to the approved plans and specifications.
RSP Engineers’ Approach to As-Built Surveys
At RSP Engineers, we approach as-built surveys with precision and attention to detail. Our team of Florida Licensed Engineers and surveyors work collaboratively to ensure that every aspect of the survey meets the highest standards of accuracy and compliance. We utilize state-of-the-art technology and adhere to all regulatory requirements to deliver reliable and certified as-built surveys.
Common Issues with As-Built Surveys
Common issues that can arise with as-built surveys include discrepancies between the design plans and actual construction, incomplete data capture, and delays in survey completion. These issues can lead to project delays and increased costs. It is essential to work with experienced professionals to mitigate these risks.
Contact RSP Engineers
For comprehensive as-built survey services and expert guidance on your Florida land development projects, contact RSP Engineers. Our team of licensed engineers and surveyors is ready to assist with all aspects of site development and regulatory compliance. Reach out to us today to ensure your project meets all necessary standards and requirements.
Conclusion
An as-built survey is an indispensable tool in the land development process, providing critical verification of construction accuracy and compliance. By understanding its importance and requirements, developers and engineers can ensure smooth project completion and regulatory approval. Partnering with experienced professionals like RSP Engineers can help navigate the complexities of as-built surveys and achieve successful project outcomes.
FAQs
-
An as-built survey is a physical survey conducted on-site to capture the actual conditions, while record drawings are updated design documents reflecting changes made during construction.
-
Various entities such as local building departments, regulatory agencies, and utility providers require as-built surveys for project closeout and compliance.
-
An as-built survey is highly accurate, utilizing methods like RTK GPS and total station to ensure precision in documenting site conditions.