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Overview of Proposal For N atural R esource P rotections & Stormwater Management in R iver T errace . Tualatin River Watershed Council Briefing January 9, 2013. Wetlands & Riparian Areas. Mandatory Protection: Application of existing city policy
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Overview of Proposal ForNatural Resource Protections & Stormwater Management in River Terrace Tualatin River Watershed Council Briefing January 9, 2013
Wetlands & Riparian Areas Mandatory Protection: • Application of existing city policy • Regulated by Sensitive Lands chapter and CWS Design & Construction Standards • DSL approved local wetland inventory Oct 2012 * Development prohibited in significant wetland areas (1 identified) * Development required to avoid, minimize, mitigate impacts in other areas
Habitat Conservation Areas Voluntary Protection: • Application of existing city policy developed during Tualatin Basin Partnership Process • Regulated by Sensitive Lands chapter • Incentives include: • 50% adjustment to any dimensional standard • Reduction to minimum density
Significant Tree Groves Voluntary Protection: • Application of recently adopted city policy • Regulated by Urban Forestry Plan • Incentives include: • Density transfer • Reduction to minimum density • Variations to some development standards
Stormwater Proposal HISTORY - began as West Bull Mtn. Stormwater Plan and retains guiding principals established by the Stakeholder Group • Equitable/Feasible Financing • Green Community STORMWATER STRATEGIES - brought forward to River Terrace Plan • Restore/Enhance Vegetated Corridors • Protect Water Quality • Preserve Existing Hydrology • Promote Safe and Long Lasting Stormwater Facilities • Balance the use of Regional and On-Site Management • Preserve Existing Mature Vegetation • Maximize use of Multi-benefit facilities to create community amenities • Promote Partnership with Other Public Service Providers
The cost of past stormwater impacts on Bull Mountain City of Tigard capital project costs to stabilize Bull Mountain Streams in 2014 is $2,150,000. Very little funding is available for staff to recommend future projects to council after 2014.