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Vantage to Pomona Heights Chapter 4 230 kV Transmission Line Project FEIS Environmental Consequences PAGE 4-174 4.7.4.11 Route Segment NNR-2 Route Segment NNR-2 would be located within the JBLM YTC and accessed from Sage Trail Road, Firing Center Road, Evergreen State Road, East Pomona Road, and the JBLM YTC perimeter fire break road. Some new road construction would be required where the route segment diverges from the perimeter of the JBLM YTC. Firing Center Road is the main road servicing JBLM YTC from Yakima and Selah and delays during construction would be longer as compared to other similar roads because of restricted access to the area of the route segment. A section of Pacific Power distribution line located along the south side of Firing Center Road would require reconstruction for this route segment. This added construction requirement would increase the overall total construction time as compared to H- frame construction on undeveloped land, but the increase in construction time would not be substantial. Alternatively, construction access could occur from East Pomona Road and Evergreen State Road which would reduce impacts on the JBLM YTC main gate traffic. Lane closures on the JBLM YTC would likely occur for short periods of time. Road closures along a portion of this route segment may also be necessary, but alternative traffic routes are typically available within the JBLM YTC cantonment area of the route segment. The route segment would cross Firing Center Road at Mile Post (MP) 3.6-3.7, Evergreen State Road at MP 3.9-4.0, and E. Pomona Road within JBLM YTC at MP 4.6-4.7. RDFs, such as the development of a Traffic Management Plan, would be implemented to reduce impacts on traffic within JBLM YTC and on county and private roads. Damage to roads will be repaired as directed by the private road owners, Yakima County, and JBLM YTC based on ownership and jurisdiction. Access Levels for Route Segment NNR-2 are assumed as Level 2 for the entire route segment. This route segment would require the construction of approximately 2.0 miles of spur roads. Low impacts are expected as a result of the construction of Route Segment NNR-2. 4.7.4.12 Route Segment NNR-3 This route segment would be accessed from JBLM YTC, private land located off of Deweese Lane, Selah Creek Drive, BLM roads servicing the Selah Butte area, Burbank Creek Road (private), and an unnamed private road north of Baldy Butte. Much of the route segment would use the existing access roads where the route segment parallels Pacific Power’s existing Pomona-Wanapum 230 kV transmission line (Figure 4.7-2). Route Segment NNR-3 would also cross I-82 at transmission line MP 0.0-0.1 just south of the Selah Creek Rest Area. The Selah Creek Rest Area is located at highway MP 24.5, approximately. The crossing would involve the placement of one transmission structure on the eastern side of the interstate within the JBLM YTC boundary. The other transmission structure on the western side of the interstate would be placed on private property near a WSDOT pond and southwest of the Selah Cliffs Rest Area. No structures would be placed within the interstate ROW corridor or the rest area. Access on either side of the interstate would occur from JBLM YTC on the southeast or from the private parcel on the northwest. The approximate length of this crossing would be about 740 feet and would utilize H-frame structures. Conductor to ground clearance for this crossing would be a minimum of 34 feet. Impacts on I-82 traffic are discussed in Section 4.7.3. A permanent access break would be required for this crossing. The rest area would not be used for staging of equipment or other Project-related purposes. All staging would be outside the WSDOT ROW corridor at this location. Other impacts on I-82 traffic are discussed in Section 4.7.3 (Impacts Common to All Alternatives) and would be low. Temporary road closure of I-82 during conductor stringing activities would occur to maintain safety. Transportation impacts created as a result of this route segment may include short-term access delays to agricultural areas around Deweese Lane from construction traffic in the area of the route segment line on private land west of the Selah Cliffs I-82 Rest Area. Delays in traffic could occur that would affect access to the residential area located along Selah Cliffs Drive, to the Selah Butte Watchable Wildflower Area, and along Burbank Creek Road. This route segment would cross Burbank Creek Road at MP 4.9-5.0.