722
edits
Changes
Jump to navigation
Jump to search
mLine 60:
Line 60: Large-scale projects require significantly more effort, budget,and staff than small-scale projects. Large-scale LID retrofitsinclude:* Bioretention* Enhanced grass swales* Bioswales* Perforated pipe systems* Permeable pavement* Soakaways* Infiltration chambers* Rainwater harvesting (excluding rain barrels)* Prefabricated modules* Green roofsConsider a large-scale project if your municipality ordepartment would like to be a leader in sustainability. Large-scaleprojects are often highly visible and attract more publicattention. Large-scale projects may also be the only solutionto site-specific challenges. For example, if site infrastructureis at risk as a result of urban flooding, LID practices that detainlarge volumes of runoff and encourage infiltration are themost viable LID options.Before starting a large-scale retrofit project, consider thefollowing distinctions that set these retrofits apart from small-scaleprojects.===Integration with capital works programs===Most large-scale LID retrofits must function with existingsite infrastructure, such as storm sewers, catch basins,and pavement systems. The construction of large-scaleLID practices often requires these systems to be removed,exposed, or replaced. The best time for this type of project tooccur is when an infrastructure replacement or rehabilitationproject is already planned.When LID retrofits are worked into other constructionprojects, such as parking lot repaving, or grading or drainageimprovements, there can be substantial cost savings.Whether big or small, every municipality spends relativelylarge sums of money and substantial time planning formajor capital projects. This includes redevelopment of publicbuilding and spaces. Many communities who have undertakenretrofits recognize that even if a relatively small portion of theproject funds goes towards LID retrofits, they can retrofit largeimpervious surfaces and avoid new stormwater managementinfrastructure projects17.Municipal facility rehabilitation is typically forecast well inadvance of the project. Parking lot paving is typically workedinto municipal budgets based on expected life cycle andobserved wear. As such, funds may be set aside prior tothe project planning phases. Long-term forecast budgetsmay also be available for site revitalizations or expansions.These budget forecasts provide opportunities to compare thecapital and life-cycle costs and benefits of the conventionalconstruction project and LID retrofit.
LID opportunities at municipal facilities (view source)
Revision as of 17:57, 19 December 2017
, 6 years agono edit summary
|style="text-align: left;" |Building || * || * || * || ** || ** || * || ** || o || o || **
|style="text-align: left;" |Building || * || * || * || ** || ** || * || ** || o || o || **
|}
|}
[[Category:Planning]]
[[Category:Planning]]