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Vantage to Pomona Heights Chapter 4 230 kV Transmission Line Project FEIS Environmental Consequences PAGE 4-169 would be sloped downward into the disturbed area to prevent dust, soil, and gravel discharges onto the roadway (RDF TR-9). If sediment is tracked off-site, roads would be cleaned thoroughly by shoveling or sweeping at the end of each day and more frequently, if necessary, with removed sediment being transported to an appropriate disposal area (RDF TR-10). Construction crews would reduce the amount of soil compaction by working when the ground is not wet, using equipment with more tires and wider tires to distribute the weight of the vehicle, and tilling the severely compacted areas after construction is completed. If work must be conducted while the ground is wet, ground mats would be utilized. FIGURE 4.7-1 HIGHWAY CONSTRUCTION STRINGING ACTIVITIES Improvements to local roads (U.S. Bureau of Reclamation [Reclamation], BLM, and state lands) may occur in selected areas as necessary for construction access. Improvements may include widening, adding gravel, smoothing out curves, grading, culvert and drainage ditch installation, brush clearing, or other measures as described in Section 2.2.3.2. New and improved access road-related impacts to other resources such as land use, visual resources, cultural resources, soils and geology, water resources, wetlands, vegetation, and wildlife are discussed in the resource-specific chapters in this Final Environmental Impact Statement. Impacts on the existing transportation system from access road construction and improvements would be short-term and low. In areas where the current road system does not provide access to the proposed Project ROW corridor, new roads would be constructed. These roads would occur where overland travel is not possible due to terrain, vegetation, slope, or other conditions that require surface clearing and grading for access. The level of ongoing maintenance of these roads would be determined based on local conditions, agency requirements, and Pacific Power maintenance standards and requirements. Road building related impacts specific to environmental resources such as vegetation, wildlife, and land use are covered in those resource specific sections of this document. Construction staging areas would be located in those areas that are approved by the agencies or landowners. As described in Chapter 2, these would occupy approximately five acres and would be located on existing disturbed land. Construction staging areas would be located adjacent to existing roads where practical. Coordination with landowners would be conducted to establish construction area limits.