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Construction on the rock shed is expected to begin in Summer 2025 and last five years. Estimate construction cost – $ 285,000,000 (Delivered through one contract). Construction has been delayed because slide talus material continues to fall and this requires continued removal. Material continues to
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Initially, two temporary bridges were built in August 2006. While this detour alleviated a significant portion of the economic impact to the area, vehicles over 28 feet could not use it. In June 2008, new temporary bridges which could accommodate longer vehicles were constructed. The detour via
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and severely impacting the local economy. Many park employees reside in
Mariposa, and for several months a two-hour trip (one way) was required to get to work in the park. Revenue via the hospitality market dropped extensively, which included wages, profits to small business owners, and county
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Repair of the highway was on permanent hold due to the encroachment of an endangered species into the slide area. In 2012, Assemblymember
Kristin Olsen authored legislation that would allow the California Department of Fish and Game to do an initial take of the
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and place it in an
Ecological Reserve. The legislation paved the way to restoring this important access route to Yosemite. Known officially as Assembly Bill No. 1973, it passed both houses of the California State Legislature and was signed into law by Gov.
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the bridges is one-way, controlled by traffic lights. At the height of the tourist season, this has sometimes resulted in significant delays. The temporary bridges access a road grade on the north side of the Merced River, which is a vestige of the
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The slide began on April 29, 2006, and initially the highway remained open, with active monitoring and occasional temporary closures. By May 28, the road was closed permanently, stopping access to the park from
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Caltrans plans to restore the original route of
Highway 140 by building a protective rock shed, with construction split into two distinct projects:
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material (approx. 320,000 tons) and installing cable drapery to minimize additional rock fall. Work began in early 2021.
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199:"Caltrans New Strategy for Ferguson Project in Mariposa County Could Result in Cost Savings"
225:"Bill Text - AB-1973 Protected species: take: Ferguson Slide Permanent Restoration Project"
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Phase 2: Constructing a 675-foot (206 m) rock shed structure on the same alignment.
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51:, United States. In 2006, rocks and debris slid off Ferguson Ridge, blocking
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287:"State Route 140 Ferguson Slide Permanent Restoration Project"
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on July 13, 2012. After considering the option of a tunnel,
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77:was declared in June 2006 for Mariposa County.
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312:"Rockshed gets thumbs up from state planners"
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73:government income from occupancy taxes. A
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16:Landslide in Mariposa County, California
291:California Department of Transportation
408:April 2006 events in the United States
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413:May 2006 events in the United States
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310:Skindrud, Erik (March 6, 2014).
157:"Nature reclaims Yosemite route"
155:Bailey, Eric (January 8, 2007).
398:Landslides in the United States
126:Phase 1: Removing the existing
84:The downstream temporary bridge
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261:"Ferguson Rock Shed Project"
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53:California State Route 140
91:Yosemite Valley Railroad
374:37.65667°N 119.90083°W
138:fall as of July 2024.
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57:Yosemite National Park
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379:37.65667; -119.90083
352:at Wikimedia Commons
104:Governor Jerry Brown
99:Limestone Salamander
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297:on January 11, 2014
41:Merced River canyon
403:Landslides in 2006
350:Ferguson landslide
118:Ferguson Rock Shed
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75:State of Emergency
29:Ferguson landslide
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348:Media related to
161:Los Angeles Times
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280:Attributions
267:November 13,
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228:. Retrieved
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166:November 13,
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301:January 11,
392:Categories
365:119°54′3″W
362:37°39′24″N
142:References
49:California
112:rock shed
37:landslide
230:June 10,
186:DOT 2014
108:Caltrans
70:Mariposa
328:May 28,
63:History
39:in the
128:talus
330:2014
303:2014
269:2021
232:2015
211:2021
168:2021
27:The
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