Stillaguamish River Bridges Replacement, SR 9 and 530, Snohomish County: Environmental Impact Statement

Front Cover
1995 - 4 pages
 

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Contents

SR 9 West of Arlington and SR 530 Through Arlington
2-12
Burke Avenue Alternative 2
2-13
SR 530 at Arlington Heights Road Burke Avenue Alternative 2
2-14
Conceptual SR 530 Bridge Crossing Burke Avenue Alternative 2
2-17
Bridge Dimension Matrix Action and No Action Alternatives 2
2-18
Summary of Construction Costs Action Alternatives 2
2-20
Conceptual SR 9 Bridge Crossing Burke Avenue Alternative 2
2-21
Northern Bypass Alternative 2
2-25
FIGURES Continued Page 33 SR 530 Profiles BypassThroughpass Alternative 2
2-46
Lane Configurations for SR 530 intersections No Action Alternative 2
2-48
Staging Matrix Action Alternatives 2
2-50
Affected Environment and Environmental Consequences
2-51
SR 9ISR 530 North of Arlington Northern Bypass Alternative 2 27
3-2
SOS Soil Descriptions 3 3
3-3
Estimated Cut and Fill Quantities 3 7
3-6
Conceptual SR 9SR 530 Bridge Crossing
3-15
Stormwater Impacts of Northern Bypass Alternative 3 16
3-16
Stormwater Impacts of Bypassflhroughpass Alternative 3 17
3-21
Estimated increase in Pollutant Load in Stillaguamish River at the City of Arlington from Pollutants in Stormwater Runoff from Highway Alternatives...
3-28
Pollutant Reduction Provided by Treatment with vegetated Swales 3 31
3-31
100Year Flood Plain Encroachment Burke Avenue Alternative 3 40
3-40
100Year Flood Plain Encroachment Northern Bypass Alternative 3 41
3-41
100Year Flood Plain Encroachment Bypassflhroughpass Alternative 3 42
3-59
Air Quality Receptor Sites 3
3-62
Maximum Predicted Carbon Monoxide Levels PPM Proposed Action 3
3-64
Sound Levels and Human Response 3
3-66
FHWA Noise Abatement Criteria 3
3-67
Noise Levels Burke Avenue Alternative 3
3-68
Noise Levels BypassThroughpass Alternative 3
3-69
Receiver Location and Noise Mitigation Burke Avenue Alternative 3
3-70
BypassThroughpass Alternative 3
3-72
Equivalent Annual Energy Consumption 3
3-77
Prime Soils in the Arlington Vicinity 3
3-81
Farming Tracts in the Arlington Vicinity 3
3-82
Affected Prime Soils Burke Avenue Alternative 3
3-83
Affected Farming Tracts Burke Avenue Alternative 3
3-84
Affected Prime Soils Northern Bypass Alternative 3
3-85
Affected Farming Tracts Northern Bypass Alternative 3
3-86
Affected Prime Soils Bypassflhroughpass Alternative 3
3-87
Affected Farming Tracts BypassThroughpass Alternative 3
3-88
Conversion of Prime Soils and Farming Tracts Action Alternatives 3
3-90
Farmland Conversion Impact Rating 3
3-93
Daily TwoWay Traffic Volumes 3
3-109
AM Peak Hour Turning Movement Volumes 3
3-110
PM Peak Hour Turning Movement Volumes 3
3-111
K Factors D Factors and Truck Percents 3
3-112
Traffic Volume Count Locations 3
3-114
Study Intersections 3
3-117
Intersection Level of Service Summary No Action Alternative 3
3-118
AM Peak Hour Intersection Level of Service 3
3-119
PM Peak Hour Intersection Level of Service 3
3-120
Stillaguamish River Bridges
3-122
Intersection Level of Service Summary Burke Avenue Alternative 3
3-127
FIGURES Continued Page
3-128
Northern Bypass Alternative 3
3-140
Visual Quality 3
3-158
Visual Quality and Typical Views 3 161
4
Past the Wastewater Treatment Plant 3 164
6
Looking North Toward SR 9Haller Bridge at the Entrance to Haller Park 3 165
7
Looking East from Haller Park to SR 9Haller and Railroad Bridge 3 166
8
Viewshed Existing Roadways 3 168
11
Viewshed Northern Bypass Alternative 3 172
13
Regional and Community Growth 3 177
19
Viewshed Bypassflhroughpass Alternative 3 174
28
Comprehensive Plan Designations 3 188
29
Shoreline Environments 3 191
31
Displacements Burke Avenue Alternative 3 205
33
Displacements and Relocation Assistance 3 201
43
Displacements Northern Bypass Alternative 3 206
48
Displacements Bypassflhroughpass Alternative 3 207
58
Disruptions and Changes in Community Character 3 214
62
Cultural Historic and Archaeological Resources 3 226
68
Arlington Vicinity Major Recreation Areas 3 229
71
Twin Rivers County Park Facility 3 231
72
Proposed Centennial Trail RightofWay Northern Bypass Alternative 3 235
77
BypassThroughpass Alternative 3 236
78
Property Values 3 246
88
Overall Economic Activity 3 257
99
267
109
Draft Section 4f Evaluation
113
Northern Bypass Alternative 2 30
4-2
SunShadow impacts on Haller Park and River Activities 3 242
4-4
References
R-1
Stillaguamish River Bridges
8-59

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