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Eastbound SR-78 to Close Fully for Two Nights: Weigh-in-Motion Sensors Replaced in San Marcos

Friday, November 6, 2026 · California · GSM News

Caltrans has announced that eastbound State Route 78 in the City of San Marcos, San Diego County, California, will be fully closed for two consecutive nights, Sunday, November 8 and Monday, November 9, from 10 p.m. to 5 a.m. each night, at South Rancho Santa Fe Road.

Crews will replace the in-pavement weigh-in-motion sensors. During the closures, traffic will be detoured through the off- and on-ramps past the work zone; Caltrans advises drivers to allow extra travel time, obey work-zone speed limits and follow directions from traffic controllers on site.

The work is part of the State Route 78 corridor improvement project, a 17.7-mile effort running from Interstate 5 in the west to Escondido in the east, with a total investment of $126 million, including $111.5 million in federal funds (with $9.2 million from the Infrastructure Investment and Jobs Act) and $14.5 million from the State of California. (Source: Caltrans)

Source: Caltrans

Published by GSM · USA (original Chinese edition)

Photo: 图片来源:78号州道(Adbar 摄,Wikimedia Commons,CC BY-SA 3.0) / Image: State Route 78, by Adbar, Wikimedia Commons (CC BY-SA 3.0)

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