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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 any changes made to the feature’s design during construction. For an example of municipal standards for as-built surveys, refer to the City of Toronto's [https://www.toronto.ca/wp-content/uploads/2017/11/98c7-ecs-specs-surveys-engsrv_survey_standards_for_consultant.pdf Engineering Survey Standards for Consultants]<ref>City of Toronto. 2021. Engineering Survey Standards for Consultants. https://www.toronto.ca/wp-content/uploads/2017/11/98c7-ecs-specs-surveys-engsrv_survey_standards_for_consultant.pdf</ref>'''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.#Identify the type, diameter, and material of exposed utilities.#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.)'''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 local municipality.
Finishing grades and surface layer installation: vegetated LIDs (view source)
Revision as of 17:38, 30 September 2022
, 2 years ago→As-built surveys
==As-built surveys==
==As-built surveys==
==Permanent fencing==
==Permanent fencing==