2 description of proposal - university of washingtoncpd.uw.edu/cpo/sites/default/files/file/uw ima...

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Draft Supplemental Environmental Impact Statement IMA Field No. 1 Improvements| January 2012 2-1 University of Washington 2 DESCRIPTION OF PROPOSAL 2.1 Proponent The proposal is sponsored by the University of Washington. 2.2 Location of Proposal IMA Field No. 1 is situated in northeast Seattle, on the south side of NE 45th Street in the northeastern portion of the University of Washington campus, as shown on Figure 2-1. The east area of the campus, shown on Figure 2-2, is devoted primarily to athletic and recreational facilities, surface parking, and open space. The nearest facilities and buildings to IMA Field No. 1 are the University of Washington Environmental Safety Office building, storage buildings, and the corporation yard located immediately south of the site, as well as the University of Washington Ceramics and Metal Arts (CMA) building located at the intersection of Mary Gates Drive and NE Clark Road. To the east of the site is the University of Washington Laurel Village Student Housing site east of Mary Gates Drive. Other athletic facilities are located east and southeast of the field including the University of Washington Golf Driving Range about 500 feet to the east. The Intramural Activities Building is about a half mile to the southwest as are other athletic facilities and buildings, including the Hec Edmundson Pavilion, Nordstrom Tennis Center, and the Dempsey Indoor Center. Parking Lot E4 with about 150 parking spaces is located across NE Clark Road from the site. Parking Lot E1 with about 3,500 spaces is located about 900 feet east of the field. The Union Bay Natural Area is a 74-acre site located generally south of the Environmental Safety building, and the corporation yards. The most important habitat areas include the Lake Washington shoreline and wetland complexes. It is used by a variety of wildlife and for passive recreation by birdwatchers and students of restorative natural landscapes. A site plan of the proposed field improvements is shown in Figure 2-3. The major features of the project include the following: Grading of the site; Addition of base material; Installation of curbing, fencing, and lights; Installation of the artificial turf surface; and Restoration of natural grass turf on portions of the field without artificial turf.

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Draft Supplemental Environmental Impact Statement

IMA Field No. 1 Improvements| January 2012 2-1 University of Washington

2 DESCRIPTION OF PROPOSAL

2.1 Proponent

The proposal is sponsored by the University of Washington.

2.2 Location of Proposal

IMA Field No. 1 is situated in northeast Seattle, on the south side of NE 45th Street in the northeastern portion of the University of Washington campus, as shown on Figure 2-1.

The east area of the campus, shown on Figure 2-2, is devoted primarily to athletic and recreational facilities, surface parking, and open space. The nearest facilities and buildings to IMA Field No. 1 are the University of Washington Environmental Safety Office building, storage buildings, and the corporation yard located immediately south of the site, as well as the University of Washington Ceramics and Metal Arts (CMA) building located at the intersection of Mary Gates Drive and NE Clark Road. To the east of the site is the University of Washington Laurel Village Student Housing site east of Mary Gates Drive.

Other athletic facilities are located east and southeast of the field including the University of Washington Golf Driving Range about 500 feet to the east. The Intramural Activities Building is about a half mile to the southwest as are other athletic facilities and buildings, including the Hec Edmundson Pavilion, Nordstrom Tennis Center, and the Dempsey Indoor Center.

Parking Lot E4 with about 150 parking spaces is located across NE Clark Road from the site. Parking Lot E1 with about 3,500 spaces is located about 900 feet east of the field.

The Union Bay Natural Area is a 74-acre site located generally south of the Environmental Safety building, and the corporation yards. The most important habitat areas include the Lake Washington shoreline and wetland complexes. It is used by a variety of wildlife and for passive recreation by birdwatchers and students of restorative natural landscapes.

A site plan of the proposed field improvements is shown in Figure 2-3.

The major features of the project include the following:

Grading of the site;

Addition of base material;

Installation of curbing, fencing, and lights;

Installation of the artificial turf surface; and

Restoration of natural grass turf on portions of the field without artificial turf.

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Scale in Feet

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IMA Field No.1Improvements

Figure 2-3IMA Field No.1 Vicinity

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IMA Field No.1Improvements

Draft Supplemental Environmental Impact Statement

IMA Field No. 1 Improvements| January 2012 2-5 University of Washington

2.3 Background Information

2.3.1 Overview

The intramural sports program at the University of Washington is an integral part of the university’s mission and is designed to provide an opportunity for every student, faculty, or staff member to participate in organized recreational competition. Structured leagues and tournaments are offered in a variety of sports activities. The program has two large grass fields devoted to outdoor sports activities. Field No.1, which is about 12 acres, is located south of NE 45th Street between University Slough and Mary Gates Way; Field No. 2, which is about 9 acres, is located between Parking Lot E1 and Canal Road NE. A portion of Field No. 2 is being reconfigured as the University of Washington Track and Field Complex. Programs that use the fields include soccer, flag football, softball, and ultimate (frisbee) leagues.

2.3.2 Campus Master Plan

In 1998, the University of Washington and the City of Seattle entered into an agreement (UW 1998) that provided a framework for developing the Campus Master Plan, which updated the 1992 General Physical Development Plan.

Elements addressed in the Campus Master Plan include location of campus boundaries; existing and proposed facilities; location of proposed development (development phases); location of open space; proposed parking facilities and traffic circulation; and a transportation management plan. An environmental impact statement (EIS) pursuant to the State Environmental Policy Act (SEPA) was prepared and the Final EIS was issued in September 2001. (This EIS is a supplement to that document.)

The existing Campus Master Plan was adopted by the Seattle City Council in 2002 and the University Board of Regents in 2003. The campus is designated as a Major Institution Overlay in the City’s zoning code. The 2003 Campus Master Plan contains policies and guidelines that are intended to guide the growth and physical development of the University of Washington. The Campus Master Plan anticipates development of approximately 3 million square feet of buildings and facilities. Project lists and narratives are included in the Campus Master Plan for each geographic sector of the campus. The Campus Master Plan also includes development guidelines for height, bulk and scale, building setbacks, light and glare, signage, parking, open space, and environmental issues.

The East Campus is described as a “village” of athletic and recreational uses within a green, pedestrian-oriented setting along the Walla Walla spine between the football stadium, women’s softball park, the indoor practice facility, crew house, baseball and soccer fields, and north to the recreation fields. An additional major component of the East Campus is the

Draft Supplemental Environmental Impact Statement

2-6 IMA Field No. 1 Improvements| January 2012 University of Washington

Union Bay Natural Area/open space adjacent to Lake Washington. Some of the issues identified for the East Campus area, which includes Husky Stadium, involve the large numbers of people and vehicles attracted to major events, the visibility of the area including the stadium stands, and the interface with the natural and recreational aspects of the waterfront.

A Transportation Management Plan is included as an element of the Campus Master Plan with a general goal of expanding commuting options for University of Washington students, staff, and faculty. Expanding transportation options is intended to shift mode choice away from single-occupancy vehicle trips to achieve the goal of limiting peak-period, peak-direction vehicle trips at or below 1990 levels.

2.4 Project Goals and Objectives

The following goals and objectives were developed to guide the IMA Field No. 1 improvements:

Create a facility that contributes to the vision in the Campus Master Plan for the East Campus, including goals for aesthetics and environmental quality.

Provide a facility that meets the needs of users and expands the hours and seasons that outdoor activities may be pursued to better serve recreational demands of the university community.

Integrate with land use and circulation elements of the East Campus.

Use design and practices to ensure energy efficiency and sustainability of facilities.

The following objectives were developed for the construction process:

Limit the duration in which athletic facilities are unavailable to the university community.

Minimize the duration and intensity of construction-related traffic disruptions within the project schedule and budget.

These goals and objectives were used by the University of Washington to develop alternatives for the EIS.

2.5 Proposal and Alternatives

2.5.1 Alternative 1: No Action

This alternative would maintain the current configuration and use of IMA Field No. 1 with continuation of the existing grass turf and no night lighting.

2.5.2 Alternative 2: Proposed Field No. I Improvements with Field Lights

This alternative would provide for the following alterations:

Draft Supplemental Environmental Impact Statement

IMA Field No. 1 Improvements| January 2012 2-7 University of Washington

An area of approximately 200,000 square feet (4.6 acres) would be regraded to reduce the cross-slope grades on the site resulting in a flatter site that would continue to slope from the northeast to the southwest.

Approximately 150,000 square feet (3.5 acres) of artificial turf would be installed. The turf would be striped for multiple uses including one standard full-size soccer field, three intramural soccer-flag football fields (aligned across the standard field), and two softball/baseball fields—one with the home plate in the northeast corner and the other with the home plate in the southwest corner.

Installation of eight light standards to provide field lighting. Two light standards would be provided on each side of the field. These fixtures would focus light on the field and minimize off-site light spillage. Lighting hours would extend to 10 or 11 pm, depending on demand and scheduling.

No changes in site access or other site features are proposed.

All improvements would be located more than 100 feet from the University Slough and would be outside of the City of Seattle Riparian Management Area.

2.5.3 Alternative 3: Proposed Field No. 1 Improvements without Field Lights

This alternative would be identical to Alternative 2 except that lights would not be installed.

Additional use would be accommodated in the autumn, winter, and spring when the field is currently unavailable because of waterlogged conditions. Use later in the evening would not be accommodated, which would limit the usability in late autumn, winter, and early spring when daylight hours are limited.

2.6 Major Elements of Proposed Improvements

2.6.1 Site Features

The basic features of the field would remain essentially the same as the existing field, except for a change in the surface over a portion of the field and the addition of lights as indicated in Figure 2-4.

The current vehicular and pedestrian facilities and access would be maintained. Most use is expected from pedestrians who would access the site from the upper campus by using the Whatcom Pedestrian Bridge to cross Montlake Boulevard NE, cross Parking Lot E1 on the existing pedestrian walkway, and follow Walla Walla Road NE to NE Clark Road to the facility. A relatively small portion of users would drive via NE 45th Street, Mary Gates Drive, and NE Clark Road to Parking Lot E4.

Draft Supplemental Environmental Impact Statement

2-8 IMA Field No. 1 Improvements| January 2012 University of Washington

2.6.2 Site Improvements

The current configuration and use of IMA Field No. 1 would be changed by the following as indicated in Figures 2-5, 2-6, and 2-7:

The lack of formal activity areas in the current field would be replaced in the western half of the field with an artificial turf surface striped for:

o Standard soccer field use with goals to the north and south.

o Intramural soccer–flag football fields oriented in an east-west direction.

o Softball fields with baselines delineated in the northeast and southwest corners.

The east portion of the field would remain unmodified and would retain its grass turf surface. It can accommodate one soccer field or one softball field or other multi-use outdoor sport activities.

The existing field would be regraded slightly to reduce the current change in grade from an elevation of about 30 feet in the northeast corner to an elevation of 22 in the southeast corner.

Approximately 12 inches of gravel would be installed as a base underneath the synthetic surface with drains at the bottom of the gravel base.

A drainage system would be installed for the field that would discharge into University Slough south of NE Clark Road.

A new synthetic surface would be installed on the field.

Field lights would be installed consisting of eight poles with an array of 10 to 14 shielded, amiable, halide lighting fixtures with reflectors and shields designed to direct light onto the field and minimize spill-over light.

The field would be contained within a continuous 8-foot-tall black-vinyl-clad chain link fence with pedestrian and service access gates in selected locations. Behind home plate at the two softball fields, additional ball control netting (“backstops”) would extend to a total height of 20 feet for a total distance of 190 feet in each location.

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Draft Supplemental Environmental Impact Statement

IMA Field No. 1 Improvements| January 2012 2-13 University of Washington

2.6.3 Earthwork and Stormwater Management

Excavation and fill for the project consist of:

Site regrading, approximately 2,500 cubic yards;

Field subgrade, approximately 5,000 cubic yards; and

Final site grading outside of the synthetic surface, approximately 500 cubic yards.

It is anticipated that site cut and fill would be balanced to the extent possible. Imported or excavated materials would be transported in trucks, probably from or to a site east of Lake Washington. Truck size and quantity required to transport excavated materials would be determined by the contractor and comply with City of Seattle conditions governing hauling hours and routes. Earthwork would occur over a 3- to 5-week period, depending on trucking schedules approved by the City. Based on conditions on other projects nearby, hauling is expected to occur during the following hours:

Weekdays between 9 am and 3 pm;

Weekdays between 7 pm and 10 pm (period may be extended by City approval on a case-by-case basis); and

Weekends on a case-by-case basis.

Truck trip generation is estimated to vary depending on the extent to which cut and fill can be balanced and time allocated for excavation and the hours of hauling. Hauling of subbase material is the largest single operation and likely would require 6 to 10 trips per hour for an 8- to 10-hour work day depending on the time period in which materials are delivered.

Best management practices (BMPs) would be implemented to prevent erosion and dust and to manage stormwater during construction. A Stormwater Pollution Prevention Plan (SWPPP) would be prepared and submitted to the Washington State Department of Ecology (Ecology) in conjunction with an application for a stormwater permit.

2.6.4 Construction Timing, Sequencing, and Management

Construction would occur over approximately 2 to 4 months depending on weather conditions. Construction would begin when soil moisture conditions permit in May 2012. Construction would overlap with the Husky Stadium reconstruction, construction of the track replacement, and Sound Transit’s construction of the University Link light rail station.

Construction staging and lay down would occur either on the easterly portion of IMA Field No. 1 or in a portion of Parking Lot E4. If located in the parking lot, approximately 60 parking stalls would be temporarily displaced during construction.

Draft Supplemental Environmental Impact Statement

2-14 IMA Field No. 1 Improvements| January 2012 University of Washington

Construction operation offices would be located on the site or in Parking Lot E4. Parking for construction workers would be provided in Parking Lot E1 or E4.

Construction vehicles and equipment entering and exiting would be coordinated with the City of Seattle Department of Transportation. It is most likely that construction traffic would be oriented to State Route (SR) 520 and access the site via Montlake Boulevard, NE 45th Street, Mary Gates Drive, and NE Clark Road. It is possible that alternative routes may be approved by the City using NE 45th Street to access Interstate 5 (I-5) if access to SR 520 is not practical. It is also possible that trips may be routed to Walla Walla Road to the west, then north to NE 44th Street and Montlake Boulevard.

The following describes the activities in each of the major construction phases:

Phase I Mobilization

Segregate the construction area from public access with temporary fencing and signage. This task could include provisions for continued access to the easterly portions of IMA Field No. 1 for athletic activities during construction.

Establish access points to the construction area and install Temporary Erosion and Sediment Control (TESC) measures.

Institute construction personnel parking area.

Set up construction administration offices.

Phase II Grading

Regrade the site to reduce the slope between the northeast and southeast corners, balancing cut and fill to the extent feasible.

Install gravel-filled trenches to allow migration of landfill methane outside of the field area to dissipate through ground-level grates.

Phase III Subgrade

Install drainage system.

Install auger-cast foundations for light poles and curb around the gravel subgrade.

Install cement soil treatment to the underlying subbase of native soils.

Install subgrade of approximately 12 inches of gravel.

Install concrete curbing.

Install utilities.

Phase IV Turf Installation and Final Improvements

Install synthetic turf surface.

Install light standards and fixtures.

Install perimeter fencing.

Install grass turf in disturbed areas outside of the synthetic turf surface.

Draft Supplemental Environmental Impact Statement

IMA Field No. 1 Improvements| January 2012 2-15 University of Washington

2.7 Other Construction Projects Affecting Cumulative Impacts

2.7.1 University Village Expansion

The University Village Shopping Center has received approval for three new buildings that range from 50 to 65 feet in height with about 100,000 square feet of retail and restaurant use, as well as 713 spaces in above-grade parking garages integrated in the South Building. This building would face NE 45th Street, which is northeast of the proposed IMA Field No. 1 Improvements site.

2.7.2 Husky Stadium Reconstruction

The University of Washington is reconstructing Husky Stadium to the south of this project. Construction will take place between November 2011 and August 2013. The major route for construction hauling will utilize Montlake Boulevard to SR 520. The peak generation of truck trips from the site is projected for the winter of 2012 when demolition and excavation take place.

2.7.3 University of Washington Track Relocation

The University of Washington is constructing a new track north of Husky Stadium. Construction will take place between fall 2011 and late summer 2012. Relatively little earth movement is projected for the project, which will generally balance cut and fill. The major route for construction hauling will utilize Montlake Boulevard to SR 520.

2.7.4 Sound Transit Light Rail Station

Sound Transit is constructing a light rail connection from downtown Seattle to Capitol Hill and the University District (University Link), which is expected to open by 2016. Service is planned to reach Northgate by 2020 and Lynnwood by 2023. The University Link station will be located on a portion of the parking lot on the west side of Husky Stadium adjacent to Montlake Boulevard. Construction of the tunnel to downtown Seattle and the new station is underway and will be completed in 2016, after completion of the Husky Field improvements. The major route for construction hauling utilizes Montlake Boulevard to SR 520.

2.7.5 Montlake Triangle

A project related to the Sound Transit station includes a pedestrian overpass to take passengers across Montlake to the Montlake Triangle (between Montlake Boulevard, NE Pacific Street, and NE Pacific Place) with connections to the northeast to the Rainier Vista corridor, and to the south to the University Medical Center. NE Pacific Place will be lowered and covered to provide a pedestrian connection to the Central Campus over a land bridge aligned with Rainier Vista.

Draft Supplemental Environmental Impact Statement

2-16 IMA Field No. 1 Improvements| January 2012 University of Washington

Work on the project will be performed in three phases: Phase 1 is the construction of the pedestrian bridge, which is scheduled to be completed by Sound Transit in 2012 and 2013. Phase 2 is the Rainier Vista land bridge, to be designed and constructed by the University of Washington in 2014. Phase 3 is the landscaping, planting, and paving on the triangle by the University in 2015.

2.7.6 Evergreen Point Bridge Replacement

The Washington State Department of Transportation (WSDOT) proposes to begin construction in 2012 on the phase of the SR 520, I-5 to Medina: Bridge Replacement and HOV Project that involves replacing the Evergreen Point Bridge; completion of this phase is scheduled for 2014 (WSDOT 2010). The improvements to Field No. 1 will be substantially completed prior to major construction activities for the bridge replacement. Construction of the west approach and new pontoon bridge, including the approaches involving closure of the Lake Washington Boulevard on-ramps which would increase traffic on Montlake Boulevard, would begin in summer 2012. This work will start after completion of major excavation and foundation work on the field. The existing Evergreen Point Bridge would continue to carry traffic with few changes in configuration through completion of field construction.