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LID opportunities at municipal facilities (view source)
Revision as of 17:57, 19 December 2017
, 7 years agono edit summary
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Large-scale projects require significantly more effort, budget,
−and staff than small-scale projects. Large-scale LID retrofits
−include:
−* Bioretention
−* Enhanced grass swales
−* Bioswales
−* Perforated pipe systems
−* Permeable pavement
−* Soakaways
−* Infiltration chambers
−* Rainwater harvesting (excluding rain barrels)
−* Prefabricated modules
−* Green roofs
−Consider a large-scale project if your municipality or
−department would like to be a leader in sustainability. Large-scale
−projects are often highly visible and attract more public
−attention. Large-scale projects may also be the only solution
−to site-specific challenges. For example, if site infrastructure
−is at risk as a result of urban flooding, LID practices that detain
−large volumes of runoff and encourage infiltration are the
−most viable LID options.
−Before starting a large-scale retrofit project, consider the
−following distinctions that set these retrofits apart from small-scale
−projects.
−===Integration with capital works programs===
−Most large-scale LID retrofits must function with existing
−site infrastructure, such as storm sewers, catch basins,
−and pavement systems. The construction of large-scale
−LID practices often requires these systems to be removed,
−exposed, or replaced. The best time for this type of project to
−occur is when an infrastructure replacement or rehabilitation
−project is already planned.
−When LID retrofits are worked into other construction
−projects, such as parking lot repaving, or grading or drainage
−improvements, there can be substantial cost savings.
−Whether big or small, every municipality spends relatively
−large sums of money and substantial time planning for
−major capital projects. This includes redevelopment of public
−building and spaces. Many communities who have undertaken
−retrofits recognize that even if a relatively small portion of the
−project funds goes towards LID retrofits, they can retrofit large
−impervious surfaces and avoid new stormwater management
−infrastructure projects17.
−Municipal facility rehabilitation is typically forecast well in
−advance of the project. Parking lot paving is typically worked
−into municipal budgets based on expected life cycle and
−observed wear. As such, funds may be set aside prior to
−the project planning phases. Long-term forecast budgets
−may also be available for site revitalizations or expansions.
−These budget forecasts provide opportunities to compare the
−capital and life-cycle costs and benefits of the conventional
−construction project and LID retrofit.
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−[[Category:Planning]]
[[Category:Planning]]