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State Route 39 (SR 39) is a state highway in the U.S. state of California that travels through Orange and Los Angeles counties. Its southern terminus is at Pacific Coast Highway (SR 1), in Huntington Beach, and its northern terminus is at Islip Saddle on Angeles Crest Highway (SR 2) in the Angeles National Forest. ==Route description== This route is part of the California Freeway and Expressway System〔(CA Codes (shc:250-257) )〕 and is eligible for the State Scenic Highway System.〔(CA Codes (shc:260-284) )〕 However, it is not a scenic highway as designated by Caltrans. State Route 39 runs along Beach Boulevard through most of Orange County, with the exception of the segment between Interstate 5 and the southern city limit of Buena Park, which was relinquished to the city in 2013. At Beach Boulevard's northerly terminus, Whittier Boulevard, Route 39 turns east to the intersection of Whittier Boulevard with Harbor Boulevard, taking over a former segment of Route 72. Route 72 remains on Whittier Boulevard west of Beach Boulevard. Although defined to be a continuous route, there is a break in adopted Route 39 at the intersection of Whittier Boulevard with Harbor Boulevard, where an "END 39" sign appears. The California Streets and Highways Code defines the continuation of Route 39 as "Harbor Boulevard to the vicinity of Fullerton Road, then to Azusa Avenue" through southern Rowland Heights. The planned alignment of Route 39 continues its northward progress on Azusa Avenue (CR N8) to the northwest in Hacienda Heights. Adopted Route 39 resumes and signs for Route 39 appear on Azusa Avenue after the junction with the San Bernardino Freeway, Interstate 10 in West Covina. The adopted route continues for to the Covina/West Covina city limit, north of Grovecenter Street. From north of Grovecenter Street to the north limit of Azusa, northeast of Rock Springs Way, previously adopted Route 39 has been relinquished (to the cities of Covina and Azusa). However, to aid motorists wishing to continue on Route 39, California Route 39 shields remain through the relinquished area. It is noted that the portion of Route 39 within West Covina was relinquished to that city in accordance with Section 339 of the California Streets and Highways Code in 2005. In the city of Azusa from just north of Interstate 210 to just north of Sierra Madre Ave. Former Route 39 is a couplet (composed of two one-way streets): northbound traffic is on Azusa Ave.; southbound traffic is on San Gabriel Ave. At the north limit of Azusa, adopted Route 39 begins again as San Gabriel Canyon Road. Route 39 winds through the San Gabriel Mountains in the Angeles National Forest for until it reaches a gate barring the road north of Crystal Lake Road in the Crystal Lake Recreation Area. The last four and one-half miles of the route, including the connection to Route 2, are closed to public highway traffic, as the roadbed has been closed since 1978, due to major rockslides that year and again in 2005 which damaged more of the remaining roadbed. The segment connecting the Crystal Lake Recreation Area to Route 2 is not scheduled to reopen before 2015.〔http://www.pasadenastarnews.com/news/ci_16117897?source=rss_viewed〕 A replacement of the section north of East Fork Road, in the next canyon to the east, was partly built in 1936 and 1961, but was never completed. The section includes one bridge and two tunnels; it was never used by automobile or truck traffic. In one local hiking guide the section is identified as the "Road to Nowhere" and the "Convict Road", although the official name is the Shoemaker Road and was planned to be an escape route in times of nuclear warfare.〔http://www.wejc.com/photo_gallery/the_convict_road.htm〕 A ca. 1967〔(January 1, 2006 California Log of Bridges on State Highways )〕 replacement, much closer to the existing alignment, was also stopped prematurely, and so the middle of the segment between East Fork Road and the closure gate, with its many hairpin curves, still exists. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「California State Route 39」の詳細全文を読む スポンサード リンク
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