Question: What name is locally known for a state route in Kern County, California which is a  truck route, connecting the agricultural land south of the county seat and east of SR 99/I-5, and the city of Arvin?
Context: State Route 99 (SR 99), commonly known as Highway 99 or, simply, as 99 (without any further designation), is a north–south state highway in the U.S. state of California, stretching almost the entire length of the Central Valley.  From its southern end at Interstate 5 (I-5) near Wheeler Ridge to its northern end at SR 36 near Red Bluff, SR 99 goes through the densely populated eastern parts of the valley.  Cities served include Bakersfield, Delano, Tulare, Visalia, Kingsburg, Selma, Fresno, Madera, Merced, Modesto, Stockton, Sacramento, Turlock, Yuba City, and Chico. State Route 599 (SR 599) is a state highway in King County, Washington.  It extends 1.75 mi from I-5 north to State Route 99 (SR 99), within the city of Tukwila.  The route serves as a connector from I-5 into West Seattle, avoiding the West Seattle Bridge. State Route 132 (SR 132) is a route in the Central Valley that leads to the Sierra Nevada foothills and the California Gold Country.  It also connects the city of Modesto with the San Francisco Bay Area via I-580, although this route is discouraged due to it being a two-lane road between Modesto (Maze Boulevard in the city of Modesto) and Interstate 5 (Motorists are instead encouraged to take SR 120 in Manteca to I-5 and I-205 to I-580.)  East of Modesto, the road climbs the foothills and finally ends at SR 49.  Portions between I-5 and I-580 is a four-lane freeway, and there are plans to upgrade the portion between SR 99 and I-5 to an expressway.  Route 132 is a two lane road important to recreational travelers en route to Modesto Reservoir, Turlock Reservoir, Don Pedro Reservoir and the Sierra Nevada foothills. State Route 509 (SR 509) is a 35.17 mi state highway in the U.S. state of Washington, connecting Tacoma in Pierce County to Seattle in King County.  The highway travels north from Interstate 705 (I-705) in Tacoma to SR 99 south of downtown Seattle.  It serves cities along the Puget Sound and west of Seattle–Tacoma International Airport in south King County, including Federal Way, Des Moines, and Burien.  SR 509 is part of the National Highway System and is a limited-access highway near the Port of Tacoma and from Burien to its northern terminus in Seattle.  Prior to the 1964 highway renumbering, the highway was part of Secondary State Highway 1V (SSH 1V) from Tacoma to Des Moines and SSH 1K from Des Moines to Seattle.  SR 509 was re-aligned onto the Burien Freeway in 1968 and the Port of Tacoma bypass in 1997, coinciding with the opening of its interchange with I-705 and the cable-stayed 21st Street Bridge.  Various proposals since 1988 have recommended building a freeway extension of SR 509 within the city of SeaTac, connecting the Burien Freeway to I-5, that remains unbuilt. State Route 184 (SR 184) is a state route in Kern County, California, locally known as “Weedpatch Highway.”  It is mainly a 2-lane conventional highway, expanding to four lanes in Bakersfield, and Lamont.  It connects the local agricultural land south of Bakersfield, and east of SR 99/I-5, to a major east/west freeway, SR 58.  The freeway connects the San Joaquin Valley to all points southeast.  It also connects to SR 178 (Kern Canyon Road), a highway which runs from Bakersfield to the Kern Valley region, and SR 223 (Bear Mountain Boulevard), which connects I-5 (Westside Freeway) to SR 58 on a route south of Bakersfield.  SR 184 southern terminus is with Wheeler Ridge Rd, a county road.  Although not a truck route, it is the only north/south road south of Bakersfield that directly connects to I-5, which runs east of SR 99.  Its connection is with the Golden State Freeway section south of SR 99. Bakersfield is a city in California, United States, and the county seat of Kern County.  It covers about 142 sqmi near the southern end of the San Joaquin Valley and the Central Valley region.  Bakersfield's population is approximately 365,000, making it the ninth-most populous city in California and the 52nd-most populous city in the nation.  The Bakersfield–Delano Metropolitan Statistical Area, which includes all of Kern County, had a 2010 census population of 839,631, making it the 62nd largest metropolitan area in the United States.  The more built-up urban area that includes Bakersfield and areas immediately around the city, such as East Bakersfield and Rosedale, has a population of approximately 464,000. State Route 411 (SR 411) is a 13.48 mi state highway located in Cowlitz County in the U.S. state of Washington, serving Longview, Kelso, West Side Highway and Castle Rock.  The roadway, which parallels the Cowlitz River and Interstate 5 (I-5), begins at an interchange with SR 432 in Longview and travels north past a spur route, under SR 4 and across the Cowlitz River to become concurrent with I-5 Business and end at an interchange with I-5, I-5 Business and SR 504 in Castle Rock.  The road first appeared on a map in 1951 and originally signed as Secondary State Highway 12H (SSH 12H) in 1957, SR 411 was established in 1964 and ran from Kelso to Vader.  In 1991, the highway was extended south to SR 432 in Longview, the former route becoming SR 411 Spur, and was shortened to I-5 / I-5 Business / SR 504 in Castle Rock. State Route 104 (SR 104) is a 31.75 mi state highway in the U.S. state of Washington, serving four counties: Jefferson on the Olympic Peninsula, Kitsap on the Kitsap Peninsula, and Snohomish and King in the Puget Sound region.  It begins south of Discovery Bay at U.S. Route 101 (US 101) south of Discovery Bay and crosses the Hood Canal Bridge over Hood Canal to the terminus of SR 3 near Port Gamble.  SR 104 continues southeast onto the Edmonds–Kingston Ferry to cross the Puget Sound and intersects SR 99 and Interstate 5 (I-5) before ending at SR 522 in Lake Forest Park.  SR 104 also has a short spur route that connects the highway to SR 99 at an at-grade signal on the Snohomish–King county line. State Route 223 (SR 223) is a state route in Kern County, California, and is locally known as Bear Mountain Boulevard.  It is a truck route, connecting the agricultural land south of Bakersfield and east of SR 99/I-5, and the city of Arvin, to three major transportation corridors without having to drive through Bakersfield.  It connects to I-5 (Westside Freeway) for goods traveling north and east of Sacramento.  It connects to SR 99 for goods traveling to major San Joaquin Valley communities.  It also connects to SR 58, for goods traveling to all points southeast, except for Los Angeles.  For goods traveling south, trucks use SR 99 while cars can use Wheeler Ridge Road, which is a north-south county road that connects to I-5 south of SR 99. State Route 524 (SR 524) is a 14.56 mi long state highway in the U.S. state of Washington, located entirely within Snohomish County and serving Edmonds, Lynnwood, Bothell and Maltby.  The roadway begins at SR 104 in Edmonds and travels east past SR 99 , Interstate 5 (I-5), under I-405 , past SR 527 and SR 9 to end at SR 522 in Maltby.  The road also has two spur routes, one connecting to SR 104 in Edmonds and another connecting to I-5 in Lynnwood.  First appearing on a map in 1895, the highway was designated as part of Secondary State Highway 1W (SSH 1W) in 1957 during an extension from Edmonds to Lynnwood.  SSH 1W was extended further to SSH 2J (present-day SR 527) in 1959 before becoming SR 524 in 1964.  A final extension east to SR 522 was completed in 1991.
Answer: Bear Mountain Boulevard