Posted by: Sandy Steinman | June 13, 2017

El Portal Road (Hwy. 140) To Yosemite National Park Closed

 Yosemite National Park (U.S. National Park Service) reports

El Portal Road in Yosemite National Park Remains Closed

Date: June 13, 2017

Highway 140 closed at Parkline at least through the weekend

The El Portal Road and Arch Rock Entrance into Yosemite National Park remain closed due to a rockslide that occurred yesterday around Noon. Yosemite National Park staff are assessing the area and the road will remain closed at least through the weekend of June 17-18, 2017. After the assessment is complete, crews will begin to remove rock debris and repair the road to make it safe for visitors to travel on. There is no estimate for when the road will reopen.

Around Noon yesterday, a large rockslide occurred from the “Parkline Slab” cliff, about 1 mile east of the park boundary on Highway 140.The rockslide originated from a point mid-way up the cliff, approximately 400 feet above the base of the cliff and 600 feet above the El Portal Road.

Roughly 4,000 tons of rock detached from the cliff along a cliff-parallel exfoliation joint; the approximate dimensions of the slab are 50 x 80 x 15 feet. This massive slab of rock slid down the cliff, hit a ledge, and broke into many pieces; these pieces fragmented further on hitting the base of the cliff, fanning out over an area more than 1,000 feet wide. The bulk of the debris slid and rolled down the slope at the base of the cliff, piling up on the El Portal Road, and continuing down to (and into) the Merced River.

Of the total volume of material that fell, roughly 1/3 of that landed on the El Portal Road, covering an area of road about 150 feet long under up to 15-20 feet of rock debris. The largest boulder on the road is about 130 tons, and there are several other boulders that are only somewhat smaller. Boulders and smaller “flyrock” fragments covered a section of road nearly 1,000 feet long. The road sustained damage, both to the paved surface and the retaining wall.

Yosemite Area Regional Transportation System (YARTS) buses will run on a modified schedule. To see the schedule, please visit www.yarts.com

A news release will be issued with updates as repairs progress on the El Portal Road.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Categories

%d bloggers like this: