426
edits
Changes
Jump to navigation
Jump to search
→Finishing Grades: Inlet, Outlet, Biomedia, Plants (JC)
Line 349:
Line 349:
'''As-built Survey'''<br>Throughout the construction process, it is sometimes necessary to deviate from the intended design of LID features and adapt the design to on-site conditions. The completion of a post-construction as-built survey is a standard operating procedure for engineering projects that captures and changes that were made to the feature’s design during construction.
Survey Steps:
*Use the same datum as the pre-engineering survey
*If a pre-engineering survey is not available, use a reference feature as the datum
*Include data on critical feature elevations and existing utilities, such as:
**Inverts of newly installed pipe
**Vertical and horizontal bends in pipes
**Existing public utilities
**Existing private utilities
**New and existing structures (e.g. catchbasins, manholes, chambers, etc.)
*Identify the type, diameter, and material of exposed utilities
Inspection Points:
*Datum matches the pre-engineering survey or selected reference feature
*Data provided in as-built survey matches the as-built standards of the City
===Finishing Grades: Inlet, Outlet, Biomedia, Plants (JC)===
===Finishing Grades: Inlet, Outlet, Biomedia, Plants (JC)===
{{:As-built surveys}
===Address Deficiencies and Assumption Protocols (JC)===
===Address Deficiencies and Assumption Protocols (JC)===