FEIS Summary - Knik Arm Bridge and Toll Authority

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Knik Arm Crossing Final EIS Summary Exhibit S-23 Environmental Impacts Associated with Construction and Operation of the Recommended Alternative Impact category Land Use Impacts Land Use and Ownership Changes Direct impacts Construction impacts Indirect impacts Cumulative impacts Consistency with Land Use Plans and Policies Direct impacts Construction impacts Indirect impacts Cumulative impacts Farmland Impacts Direct impacts Construction impacts Indirect impacts Cumulative impacts a N/A = not applicable Northern Access Alternative (Mat-Su Side) Right-of-way (ROW) Acquisition of Structures 0 structures Affected Land Parcels 28 ROW Costs $0.6M Recommended Alternative Southern Alignment Crossing with 8,200-Foot Bridge and Connecting Roadways on Gravel Fill (The Crossing) Some tideland properties converted to transportation use. The existing land use of some parcels could be changed temporarily to stage construction equipment and supplies. Increased demand for residential land uses; increased demand for transportation, commercial, and industrial land uses. Improved access provided by Knik Arm Crossing (KAC) Project will contribute to an increase in demand for port-related development. Erickson Alternative (Anchorage Side) ROW Acquisition of Structures 18 structures • 9 residential (16 families) • 4 commercial (4 businesses) • 5 industrial (6 businesses) Affected Land Parcels 40 ROW Costs $11.5M Less aggressive demand for residential land uses; increased demand for transportation, commercial, and industrial land uses. Cumulative impacts in the Mat-Su would result in increases in developed land. About 25% of developable land would be developed by 2030.Of the approximate 158,000 acres of developable land in the Mat-Su modeled area, including approximately 10,000 acres already developed, cumulative land impacts total approximately 40,000 acres. The project is consistent with Mat-Su Borough plans including the 2005 Mat-Su Borough-Wide Comprehensive Plan. The Knik Arm Crossing project was evaluated by the Mat-Su Borough as part of their LRTP, which was adopted in 2007. Various economic development plans and resolutions of support of the project by the Mat-Su Borough Assembly are also in place. ROW acquisition from parcels located in the Point MacKenzie Agricultural Area. None. N/A a N/A In compliance with 23 U.S.C. § 134 Metropolitan Planning, an amendment for the inclusion of the KAC Project into the Long-Range Transportation Plan (LRTP) through Anchorage Metropolitan Area Transportation Solutions (AMATS) was approved by the AMATS Policy Committee on April 12, 2007. An Air Quality Conformity determination was also approved by the AMATS Policy Committee on the same date. Full details of the amendment and air quality conformity processes may be found in the Land Use and Transportation Forecast Technical Report addendum. In compliance with 23 U.S.C. § 134(h) Transportation Improvement Program, the Municipality’s Transportation Improvement Program amendment and accompanying Air Quality Conformity determination were approved by the AMATS Policy Committee on June 27, 2007. The recommended alternative and other development in the Mat-Su Borough would create conditions suitable for the lifting of agricultural covenants in the Point MacKenzie Agricultural Area, leading to subdivision for residential and commercial uses. (continued on next page) Exhibit S-23 Environmental Impacts Associated with Construction and Operation S-36
Knik Arm Crossing Final EIS Summary Exhibit S-23 Environmental Impacts Associated with Construction and Operation of the Recommended Alternative (continued) Impact category Impacts on the Social Environment Northern Access Alternative (Mat-Su Side) Neighborhoods, Community Cohesion, and Environmental Justice Impacts Direct impacts Construction impacts Indirect impacts Cumulative impacts Transportation Impacts Direct impacts Construction impacts Neighborhoods and Community Cohesion Southwest Mat-Su population will benefit from shorter, more convenient access to Anchorage. Because of changes in the sense of solitude some residents will likely relocate out of the Project Area. Development of new neighborhoods with year-round residents will create new social networks. Environmental Justice No disproportionately high and adverse effects on minority and low income populations were found. Could have temporary, short term delays during construction activities to those traveling to Port MacKenzie and adjacent properties. Recommended Alternative Southern Alignment Crossing with 8,200-Foot Bridge and Connecting Roadways on Gravel Fill (The Crossing) Neighborhoods and Community Cohesion Increase in residential and commercial development in Southwest Mat-Su will change the rural character. Past trends will continue in Anchorage. Environmental Justice No disproportionately high and adverse effects on minority and low income populations were found. The project has been designed in cooperation with the Mat-Su Borough to maintain accessibility to port lands and sized with sufficient capacity to meet both short- and long term traffic demands. Construction of a multiuse pathway adjacent to the KAC vehicle route could increase access for pedestrians and bicyclists between Anchorage and the Mat-Su. Direct impacts on transit operations and users will be limited; access will, however, be improved for transit users between Anchorage and the Mat-Su. The Recommended Alternative will have no direct impacts on air transportation or air transportation facilities. Increase in truck traffic and interruption of vehicular travel on Point MacKenzie Road. The delivery of construction materials would increase marine traffic. N/A N/A None None Erickson Alternative (Anchorage Side) Neighborhoods and Community Cohesion Relocation of homes and businesses would cause: • disruption to social networks in the Government Hill neighborhood • changes in traffic patterns and accessibility Environmental Justice No disproportionately high and adverse effects on minority and low income populations were found. Vehicular and pedestrian travel, including movement between Loop Road and local roads in Government Hill and between the east and west sides of Erickson and Degan Streets will be interrupted. Noise effects such as that produced by pile-driving equipment and effects on the visual environment during the construction phase will be temporary. The project has been designed to integrate into the existing and planned roadway network to minimize any traffic congestion or traffic impacts. The Recommended Alternative will affect the rail yard in locations where piers are proposed for construction in Phase 2. Vehicle, pedestrian, and bicycle movements, will be interrupted at times, particularly between Loop Road and local roads in Government Hill, between the east and west sides of Erickson and Degan Streets in the Government Hill neighborhood, and between surface streets in Government Hill and the A-C Viaduct. (continued on next page) Exhibit S-23 Environmental Impacts Associated with Construction and Operation S-37
Page 1 and 2: Knik Arm Crossing Final Environment
Page 3 and 4: Exhibit S‐1. Final EIS Document O
Page 5 and 6: Knik Arm Crossing Final EIS Summary
Page 15 and 16: Exhibit S‐22. Reasons for Preferr
Page 17 and 18: Findings, Compliance, and Permits E
Page 25 and 26: ! ! ! ! ! ! ! ! ! ! ! ! Knik Arm Cr
Page 33 and 34: The preliminary design includes pla
Page 35: Summary Initial Construction (Phase

FEIS Summary - Knik Arm Bridge and Toll Authority

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