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Vantage to Pomona Heights Chapter 4 <br />230 kV Transmission Line Project FEIS Environmental Consequences <br /> PAGE 4-216 <br />Pulling and tensioning sites would also cause short-term landscape and structure contrasts. The presence <br />of a helicopter during the stringing of the transmission line conductor wires would cause short-term <br />structure contrasts, potentially disrupting views or scenic vistas (e.g., toward the Cascade Mountains). <br />The temporary structure work areas, turn-around areas, and staging areas would cause low impacts due to <br />the duration of landscape and structure contrasts. Impacts from light sources would not occur because <br />construction would be limited to daylight hours. The potential for glare from the transmission line <br />conductors would be reduced with the use of non-specular conductors (RDF VIS-6). <br />Scenic Quality Impacts and Development Character <br />Scenic quality in the area of the Route Segment NNR-6u is influenced by the presence of the existing <br />Pomona-Wanapum 230 kV transmission line and other existing transmission lines. Because Project <br />contrasts are typically weak to moderate-weak, scenic quality impacts would be low to moderate. <br />Sensitive Viewer Impacts <br />Huntzinger Road travelers and John Wayne Pioneer Trail users would view weak Project contrasts in the <br />immediate foreground and foreground. From the north, the route segment would be viewed behind the <br />existing Pomona-Wanapum 230 kV, Wanapum-Wind Ridge 230 kV, Vantage-Schultz No.1 500 kV, and <br />Schultz-Wautoma No.1 500 kV transmission lines from the John Wayne Pioneer Trail where the trail <br />generally parallels the route segment. At the John Wayne Pioneer Trail crossing of Route Segment <br />NNR-6u (Appendix C-3: KOP 21), low impacts are expected due to the existing transmission lines visual <br />influence and weak contrasts. Ginkgo Petrified Forest NNL (Wanapum Recreation Area boat launch) is <br />located in the in the seldom seen distance zone within the Project study area and views are typically <br />screened by topography. Therefore low or no impacts on the NNL is expected from Route Segment <br />NNR-7. <br />Agency Management Compliance <br />This route segment crosses land managed by JBLM YTC, who has no policies related to the management <br />of visual resources. <br />4.8.5.17 Route Segment NNR-8 <br />Visual Contrasts <br />Structure contrasts are also weak for Route Segment NNR-8 because this route segment would parallel <br />the existing Pomona-Wanapum 230 kV, Wanapum-Wind Ridge 230 kV, Vantage-Schultz No.1 500 kV, <br />and Schultz-Wautoma No.1 500 kV transmission lines. Landscape contrasts are highest in areas of <br />sagebrush and rabbitbrush where the existing road would require improvements. Also, the lattice <br />structures needed to cross the Columbia River would be similar to the four existing Columbia River <br />crossing structures, creating weak contrasts. Typically, Project contrast is weak or moderate-weak along <br />the entire route segment. <br />Scenic Quality Impacts and Development Character <br />Scenic quality in the area of the route segment is influenced by the presence of the existing Pomona- <br />Wanapum 230 kV transmission line and other transmission lines. Because Project contrasts are typically <br />weak to moderate-weak, scenic quality impacts would be low and Route Segment NNR-8 would be in <br />character with the existing development. <br />WSDOT conducted a visual quality evaluation of SR-243 based on the FHWA’s Visual Impact <br />Assessment for Highways methodology. Existing visual quality was rated as 1.5 (low) at the highway <br />crossing. With the implementation of route segment in this location, the visual quality of the highway in <br />the area of the highway would remain 1.5 (WSDOT 2014).