加州交通厅：索诺拉49号州道150年涵洞将更换，11月6日起车道轮换
加利福尼亚州交通厅（Caltrans）11月4日宣布，将启动一项紧急工程，更换图奥勒米县索诺拉市（Sonora）49号州道（Stockton Street）下方一处已有约150年历史、已部分坍塌的涵洞。工程将更换道路南侧涵洞并升级沿线排水口，施工期间市中心路段将实行车道轮换。
据加州交通厅介绍，该工程依据州长 Gavin Newsom 发布的厄尔尼诺紧急状态公告加速推进，造价120万美元，由位于 Covelo 的 Wylatti Resource Management Inc. 承建。交通厅表示，老涵洞状况持续恶化，若不及时处置，雨季径流可能进一步侵蚀路基。
交通安排方面，11月6日（周五）下午5时起，Green Street 与 Downtown Plaza 之间路段的车流将转移至道路北侧行驶，全天候维持这一安排。11月5日至6日，施工队先进行测量作业，上午7时至下午5时实行单向交替放行。
工程期间，道路南侧人行道关闭，附近公交站临时迁移至 Stockton Street 与 Washington Street 交口的 Bank of America 旁。加州交通厅预计整个工程于12月初完工，并提醒驾驶人行经施工区减速慢行、预留额外通行时间。
（来源：加州交通厅）
Caltrans: 150-Year-Old Culvert Under SR-49 in Sonora to Be Replaced, Lane Shifts Start Nov. 6
The California Department of Transportation (Caltrans) announced on November 4 that it will begin an emergency project to replace a roughly 150-year-old, partially collapsed culvert beneath State Route 49 (Stockton Street) in Sonora, Tuolumne County, California. Crews will replace the culvert on the south side of the highway and upgrade drainage inlets along the corridor, with traffic shifted to the north side through downtown.
Caltrans said the project is being expedited under Governor Gavin Newsom's El Niño emergency proclamation. The $1.2 million contract was awarded to Wylatti Resource Management Inc. of Covelo. The agency said the aging culvert continues to deteriorate and could undermine the roadway during winter storms if left unaddressed.
Beginning at 5:00 p.m. on Friday, November 6, traffic will shift to the north side of the highway between Green Street and Downtown Plaza, remaining in place at all hours. Survey work on November 5 and 6 will require one-way traffic control from 7 a.m. to 5 p.m.
The south sidewalk will be closed during construction, and the nearby bus stop has been relocated next to the Bank of America at Stockton and Washington streets. Caltrans expects the project to be completed in early December and urges drivers to slow down and allow extra travel time through the work zone.
(Source: California Department of Transportation)
来源：加州交通厅
发布：GSM·美国（发布链接）
图片来源：加州交通厅总部大楼（萨克拉门托）。 The California Department of Transportation headquarters in Sacramento. CC BY-SA 4.0，摄影：Coolcaesar。图片来源 Source image: https://commons.wikimedia.org/wiki/File:1120_N_Street.jpg
GSM Global · 本篇英文版 English edition of this story
