FINAL Crystal Chapter 3
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3.3.5 Transportation 3.3.5 TRANSPORTATION The following section analyzes existing and background traffic, parking and transit conditions in the study area along the major roadways leading to Enumclaw from the Seattle-Tacoma metropolitan area, as shown in Figure 3.3.5-1. The study area includes State Route 410 (SR-410) through Bonney Lake, Buckley, Enumclaw, Greenwater and up to Crystal Mountain Boulevard. The Study Intersections include six intersections in Enumclaw and the intersection of SR-410 and Crystal Mountain Boulevard. 3.3.5.1 Existing Conditions Access and Street System Crystal Mountain is located approximately 75 miles south of the Seattle metropolitan area. Traffic to and from Crystal Mountain uses several area roadways. · SR-410 · SR 164 · SR 169 · 284th Avenue SE · SE 416th Street · Crystal Mountain Boulevard SR-410 Enumclaw to Crystal Mountain Boulevard All-American Roads. In 1998, U.S. Secretary of Transportation Rodney E. Slater recognized SR-410, with the designation of “All American Road,” under the National Scenic Byway program. This designation includes the Mather Memorial Parkway, which traverses the MBSNF and MRNP. Under management of the Federal Highway Administration (FHWA), this program was designed to recognize and enhance America’s transportation corridors. According to the program’s web page, “All-American Roads are our country’s finest byways: the best of the best. They are destinations unto themselves and an exciting adventure for all ages” (National Scenic Byways Program, 2001). The Mather Memorial Parkway is possibly the most scenic route crossing the Cascade Mountain Range. It is also the most accessible road for viewing Mount Rainier and MRNP. The route has a uniquely varied landscape. The route climbs along the White River, through closed canopy of evergreen forest. At Chinook Pass, the roadway descends dramatically through the WNF and along the American River. The road passes the unique basalt flows of the Columbia Plateau and ends near the fertile agricultural valleys of Yakima County. Chinook Byways. The King County Landmarks and Heritage Program works in collaboration with the Washington State Heritage Corridor Program to provide technical assistance to corridor Crystal Mountain MDP – Final EIS 3-226 3.3.5 Transportation management groups. The program maintains information on historic properties and heritage organizations/activities along the corridors within King County. Under this program, the portion of SR-410 from the Enumclaw area to the Mather Memorial Parkway is designated as the “Chinook Byways”. Chinook Byways begins approximately 4 miles east of Enumclaw and provides travelers with an educational and scenic trip on SR-410 along the White River. Chinook Byways includes highlights such as Mud Mountain Dam, Federation Forest State Park, the Town of Greenwater, and vistas of Mount Rainier. Chinook Byways provides travelers with a positive experience by identifying recreational and educational opportunities, developing scenic viewpoints, identifying historic, cultural and scenic sites; and promoting the natural features of the area. SR-410, also known as the Enumclaw-Chinook Pass Road or Mather Memorial Highway, is a two-lane arterial. SR-410 provides the primary access to Crystal Mountain as well as the Northeast entrance to MRNP. Within Enumclaw, SR-410 is identified as Roosevelt Avenue. East of Enumclaw, motorists maintain continuous travel along SR-410, reaching speeds of 40 to 60 mph with occasional opportunities to pass slower vehicles. Posted speed limits range between 35 and 55 mph. The road gradient from Enumclaw to the Crystal Mountain Boulevard intersection is relatively flat, rising gradually with the river valley. Scattered roadside development is present along the 33-mile stretch between Enumclaw and Crystal Mountain. The road also passes through the community of Greenwater. During periods of heavy snowfall and high skier visits, the Washington State Patrol (WSP), under contract with Crystal Mountain, staffs a chain-up checkpoint near the intersection of SR- 410 and Crystal Mountain Boulevard. A 1/2-mile long chain-up lane along SR-410 is used during morning arrival hours when chains are required. Motorist speeds slow to 5-10 mph through this area when chain restrictions are enforced. Traffic is occasionally stopped to allow State Troopers to inspect two-wheel drive vehicles for traction devices. Traveling westbound along SR-410, from Crystal Mountain, traffic is generally uninterrupted until reaching the traffic signal at the intersection of SR-410 and 284th Avenue SE in Enumclaw. At this point, traffic disperses throughout the Pierce and King County roadway networks via SR- 410, SR 164, and SR 169. SR 164 SR 164, also known as the Auburn-Enumclaw Road, is a two-lane arterial connecting Enumclaw with Auburn to the northwest. Within Enumclaw, SR 164 is identified as Griffin Avenue. This highway provides the principal access to SR-410 and Crystal Mountain from the Auburn area and SR 18. SR 169 SR 169 is a two-lane arterial, providing principal access to SR-410 and Crystal Mountain from the Kent, Renton, Issaquah and Bellevue areas. Within Enumclaw, SR 169 is identified as 264th Crystal Mountain MDP – Final EIS 3-227 3.3.5 Transportation Avenue SE or Porter Street. Steep roadway grades (7-8 percent) are located on SR 169 approximately 4 to 6 miles north of Enumclaw, as the roadway crosses the Green River Gorge. 284th Avenue SE 284th Avenue SE is a two-lane north/south minor arterial. SE 416th Street and SE 400th Street, 284th Avenues SE is part of a bypass route with SR 169 and SR-410. Many skiers use this route to avoid downtown Enumclaw. Within Enumclaw, 284th Avenue SE is identified as Farman Street. SE 416th Street SE 416th Street is a two-lane east/west minor arterial providing a bypass route, along with 284th Avenue SE, between SR 169 and SR-410. Crystal Mountain Boulevard Crystal Mountain Boulevard is a two-lane road providing the only vehicle access to Crystal Mountain. From its intersection with SR-410, Crystal Mountain Boulevard follows the Silver Creek Valley 6 miles southeast to the base of Crystal Mountain Ski Area. The lower 1.5-mile section climbs approximately 250 vertical feet at an average 3 percent grade. The remaining 4.5- mile section along Silver Creek climbs approximately 1,400 vertical feet at an average 6 percent gradient, for a total rise of approximately 1,650 feet over 6 miles. The posted speed on Crystal Mountain Boulevard is 35 mph, with advisory speeds between 20 to 30 mph posted in advance of several curves. Under winter conditions, uphill speeds generally range between 20 to 25 mph, with further reduced speeds for downhill traffic, particularly at the upper end of the valley. Lane widths along Crystal Mountain Boulevard range between 10 and 11 feet with 2 to 3-foot shoulder areas. A drainage ditch parallels the uphill side of the roadway while the downhill edge of the road is frequently lined with a guardrail. Although Crystal Mountain Boulevard is maintained by Pierce County, the road is maintained by Crystal Mountain during the winter season via an agreement between Crystal Mountain and Pierce County. Intersections Based upon potential impacts of the Proposed Action and discussions with King County and the City of Enumclaw, the following intersections were considered in the evaluation of existing conditions (see Figure 3.3.5-1): · 284th Ave. SE/ SE 416th · 264th Ave. SE (SR 169)/ SE 416th Crystal Mountain MDP – Final EIS 3-228 3.3.5 Transportation · Porter St. (SR 169)/ Griffin Ave. (SR 164) · Cole St./ Griffin Ave. (SR 164) · Griffin Ave. (SR 164)/ Roosevelt Ave. (SR-410) · 284th Ave. SE (Farman St.)/ SR-410 · Crystal Mountain Boulevard/ SR-410 Pedestrian Access Sidewalks are located in downtown Enumclaw along SR 169 (Porter St.) and SR 164 (Griffin Ave.). Limited pedestrian and bicycle activity was observed along area roadways during winter 1999 data collection. Pedestrian activity at the Resort is discussed below. Existing Parking and Shuttle System Crystal Mountain currently provides 21.6 acres of parking accommodating approximately 2,743 vehicles. Given average vehicle occupancy (AVO) of 2.18 persons per vehicle, base area parking can accommodate approximately 84 percent of Crystal’s existing total capacity (7,150 Skiers at One Time). The parking lots are located along Crystal Mountain Boulevard and Silver Creek, extending approximately 1 mile down slope from the base area. Table 3.3.5-1 provides information on the existing parking areas at Crystal Mountain. Table 3.3.5-1 Existing Parking at Crystal Mountain Parking Area Lot (acres) A 3.0 B 11.1 C 3.7 D 0.7 E 0.6 F 2.5 Parking Provided 21.6 Source: Crystal Mountain The existing parking lots serve day visitors, employees, and overnight lodging guests and RV users. Some parking spaces are reserved for overnight guests. Crystal Mountain sells annual weekend only parking passes for visitors who desire to park in the immediate vicinity of the base area (southern Lot A) for convenience.39 A passenger drop-off and pick-up zone is also provided for the entrance to the base area plaza and ticketing. It is also used for shuttle service. This area becomes congested on weekend days. 39 According to data provided by Crystal Mountain, 85 passes were sold during the 1999-2000 season, 97 passes were sold during 2000-01, 149 passes were sold during 2001-02 season and 142 passes were sold during the 2002- 03 season (Bill Steel, Pers. Comm., 2001, 2003) Crystal Mountain MDP – Final EIS 3-229 3.3.5 Transportation The linear nature of the parking areas relative to the location of the existing base allow approximately 25 percent (5.4 of 21.6 acres) of Crystal Mountain guests to park within a comfortable walking distance of key base area facilities.