Vantage to Pomona FEIS Index 34 - Laserfiche WebLink

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Vantage to Pomona Heights Chapter 4 230 kV Transmission Line Project FEIS Environmental Consequences PAGE 4-267 The YNCRP has identified two TCPs in the vicinity of NNR-3 that may be visually sensitive. Overall, visual impacts of Route Segment NNR-3 are anticipated to be moderate to high because of the presence of two TCPs. Native American Concerns Two TCPs have been identified along Route Segment NNR-3. Physical and visual impacts to the TCPs are expected to be moderate to high. 4.11.4.13 Route Segment NNR-4o/NNR-4u Route Segment NNR-4o/NNR-4u is 4.5 miles long. The area crossed is a combination of private property and land managed by JBLM YTC and WSDOT. Physical Impacts The total amount of land within the 75 feet of the route segment centerline is 84 acres. Out of these 84 acres, at least 61 acres (73 percent) have been surveyed for archaeological resources. Ten archaeological resources are recorded within the Project study area, two unevaluated prehistoric lithic scatters and eight prehistoric isolated finds that are unevaluated as to their National Register eligibility. There are no architectural resources within 75 feet of the route segment centerline. One TCP has been identified. Overhead Design Option Impacts Short-term and long-term ground disturbance along Route Segment NNR-4o would total 23.0 acres. Because of the presence of two archaeological sites, no architectural resources, and one TCP along this route segment, physical impacts to cultural resources from the construction of the Overhead Design Option are expected to be moderate to high. Underground Design Option Impacts Short-term and long-term ground disturbance along Route Segment NNR-4u would total 46.7 acres. Because of the presence of two archaeological sites and one TCP along this segment, physical impacts to cultural resources from the construction of Route Segment NNR-4u are expected to be moderate to high. However, the potential for impacts to known sites and impacts resulting from the unanticipated discovery of archaeological resources may be somewhat higher than under with Route Segment NNR-4o because the amount of ground disturbance would be greater. Visual Impacts At least 205 acres (71 percent) of the land within 250 feet of the centerline of Route Segment NNR- 4o/NNR-4u have been surveyed for cultural resources. The two known archaeological sites are unlikely to be sensitive to changes in visual setting. No architectural resources have been identified. One TCP has been identified in the Project study area. Visual impacts are anticipated to be moderate to high because Route Segment NNR-4o/NNR-4u would cross a TCP. Overhead Design Option Impacts Because of the known TCP along this route segment, visual impacts to cultural resources from the construction of NNR-4o are expected to be high. Underground Design Option Impacts Because of the known TCP along this route segment, visual impacts to cultural resources from the construction of NNR-4u are expected to be moderate to high. However, the potential for visual impacts resulting from the unanticipated discovery of cultural resources may be somewhat lower under this option