Presentations text content in East Link Extension
Slide1
East Link Extension
Bel
-Red Tree Mitigation
Light Rail Permitting Citizen Advisory Committee
July 2, 2014
Slide2Bel-Red Permit Tree Mitigation
OverviewCity of Bellevue Tree Mitigation CriteriaTree Survey MethodologySummary
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Slide3City of Bellevue Criteria
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Three Different Regulations
Apply
Critical Areas
Bel-Red Overlay
General Development Requirements
City of Bellevue Best Management Practices (BMPs) for tree preservation
In Critical Areas
Three new conifers for one tree removed
Slide4Methodology
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Tree Assessment
Tree location survey – all trees greater than 4 in diameter breast height
Tree identification classification
Species
Category
Significant
Health
Tree removal overview
Trees within the foot print
Clear Zone - 34ft from centerline
Slide5Tree Survey & Removal - Summary
E340 Design PackageTree ImpactsLight Rail/Bel-Red Overlay AreasCritical AreasCritical Area BufferConiferousDeciduousConiferousDeciduousTotal Significant Trees634Total Significant Trees by District549316165Total Significant Trees Removed372Significant Trees Removed by District282(+3 hazard)312030Mitigation RatioNA – Preserving 55% of Trees > 15% requirement3:11:13:11:1
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Slide6Bel-Red Tree Replanting Summary
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E340 Design Package
Tree Replacement
Light Rail/Bel-Red Overlay Areas
Critical Areas & Critical Area Buffer
Coniferous
Deciduous
Proposed Trees to be Planted
255
79
123
Total
Trees to be Planted
457
Slide7Tree Specifications
Pyramidal European Hornbeam, Summit Ash, Crape Myrtle, English Oak, Greenspire Little Leaf Linden, Ginkgo, and Venus Dogwood 2-2 ½” caliper Min. 7’ htWeeping Yellow Cedar, Shoreline, Austrian Pine and Mountain Hemlock Min. 12-14’ htDeciduous Trees Min. 2” caliper
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Slide8Tree Mitigation Example
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West Tributary of Kelsey Creek
Slide9Tree Mitigation Example
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West Tributary of Kelsey Creek
Slide10Tree Mitigation Example
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West Tributary of Kelsey Creek
Slide11Tree Mitigation Example
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130
th
Station
Slide12Tree Mitigation Example
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130th Station
Slide13Tree Mitigation Example
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130
th
Station
Slide14Slide15Slide16
East Link Extension
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