Changes

[[Definition of Low Impact Development|LID techniques and technologies]] are new to many municipalities, consulting engineers, and contractors. STEP's construction guidance aims to give practical advice, specific to LID construction, to enable practitioners to successfully construct LID practices.  

[[Definition of Low Impact Development|LID techniques and technologies]] are new to many municipalities, consulting engineers, and contractors. STEP's construction guidance aims to give practical advice, specific to LID construction, to enable practitioners to successfully construct LID practices.  

Common reasons projects fail at the construction stage are:

Common reasons LID projects fail at the construction stage are:

*'''Lack of detail in designs and construction documents.''' Contractors can struggle to build LID facilities properly without enough detail in the contract drawings and without guidance and inspection throughout the construction process.  

*'''Lack of detail in designs and construction documents.''' Contractors can struggle to build LID facilities properly without enough detail in the contract drawings and without guidance and inspection throughout the construction process.  

*'''Lack of knowledge.''' Designers often do not understand the complexities of the construction process, and contractors often don't understand the purpose of LID practices or the technologies they employ.

*'''Lack of knowledge.''' Designers often do not understand the complexities of the construction process, and contractors often don't understand the purpose of LID practices or the technologies they employ.

*'''Lack of effective erosion and sediment control during construction.''' LID practices are most vulnerable to sedimentation and [[clogging]] during their own construction or construction of adjacent lands.

*'''Lack of effective erosion and sediment control during construction.''' LID practices are most vulnerable to sedimentation and [[clogging]] during their own construction or construction of adjacent lands.

*'''Lack of planning and communication.''' Poor communication protocols and the pace and extent of construction may preclude proper inspections and certifications.

*'''Lack of planning and communication.''' Poor communication protocols and the pace and extent of construction may preclude proper inspections and certifications.

Regular inspections throughout the construction process of LID practices prevent end products that are not built to the design specifications. Specifically, they ensure that:

Regular inspections throughout the construction process of LID practices prevent end products that are not built to the design specifications. Specifically, they ensure that: