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Vantage to Pomona Heights Chapter 3 230 kV Transmission Line Project FEIS Affected Environment PAGE 3-174 The Yakima County roadway system is comprised of 1,655 miles of roadways, a total of 514 miles are within the Yakama Indian Reservation. Of the total road miles, including those in the Yakama Indian Reservation, 1,488 (89.9 percent) are classified as Rural Roads and the remaining 167 miles (11 percent) are classified as Urban Roads. In terms of surface types, three miles are PCCP, 106 miles are ACP, 990.93 miles are BST, and the remaining 556 miles are gravel surfaced (Yakima County 2015). Most county roads are two lanes wide. Paved roads are generally 24 feet wide with two-foot gravel shoulders on both sides. Gravel roads are generally 24 feet wide with no shoulder and dirt roads, if any, are generally 20 feet wide with no shoulders. The majority of roads in the three counties exist in a 60-foot right-of-way (ROW); although, in some cases, that may be wider. The counties maintain paved roads, which are comprised of a BST surface, by chip-sealing on either a regular schedule or as-needed. Gravel and dirt roads are “bladed” throughout non-winter months to provide a smoother surface for vehicle travel. Much of the traffic on the county roads is primarily for local use. Local use traffic in all three counties consists of residents traveling into the largest city center or to the interstate or state highway. Additionally, during planting and harvesting seasons there is much agricultural-related traffic between fields. The traffic generated is often from farm-implements or tractor-trailers which may be considered oversized loads and require precaution by both the operator and other drivers. In Grant County, the major roads in the Project study area run along the section lines to provide a grid- like pattern and include: • Lower Crab Creek Road, a Rural Road extending east-west along the northern boundary of the Saddle Mountains and along the Lower Crab Creek Wildlife Area. This is a major route which serves the Lower Crab Creek Wildlife Area, as well as Beverly and Smyrna. The road is accessed from SR-243 from the west. • Road O SW, a Rural Road extending north-south through mainly agricultural lands that is primarily a local use road. The road runs through the western edge of Mattawa and connects between SR-243 to the south, and Road 24 SW its northern terminus. The road is two-lane and paved. • Road 24 SW, a Rural Road extending east-west through mainly agricultural lands that is primarily a local use road. The road runs along through the central portion of Mattawa, with an eastern terminus at SR-24 and a western terminus at SR-243. The road is two-lane and paved. • Road N SW, a Rural Road extending north-south through mainly agricultural lands that is primarily a local use road. The rural road designation applies primarily to the southernmost portion of the “Road N alignment.” There is no county ROW along most of this alignment. The unpaved Road N alignment road runs intermittently between parcels with crop production. There is no opportunity for thru-traffic. The road does not go any further north than Road 25.5 SW. To the south, the road ends approximately a 0.25 mile south of its intersection with Road 29.5 SW. The road is two-track to two-lane and is not paved. • Road 27 SW, a Rural Road extending east-west through mainly agricultural lands that is primarily a local use road. The road runs along through the central portion of the Project study area within Grant County, with an eastern terminus at Road K SW and a western terminus at SR-243 near Desert Aire. The road is two-lane and paved. In Kittitas County, the major roads in the Project study area include: • Huntzinger Road, a Rural Road running along the eastern boundary of the JBLM YTC in a north-south direction. The road provides access to residences and agricultural operations