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Another stretch of Hwy. 46 is widening to 4 lanes. Here’s a look at what’s happening

Construction began Friday on the latest upgrade to Highway 46 that will improve safety through the road’s infamous “Blood Alley.”

On Friday afternoon, Caltrans and government officials attended a groundbreaking ceremony for the Highway 46 widening project, which will convert the two-lane divided highway into a four-lane expressway, according to a news release after the event.

“It was a great milestone to share this day with our partners as we widen another five-mile segment of this important east-west corridor,” Caltrans District 5 Director Tim Gubbins said in the release. “This project moves us closer to our goal of creating a four-lane divided highway from San Luis Obispo County to the San Joaquin Valley.”

The segment that will be widened stretches from the Shandon rest stop to roughly a mile east of the Jack Ranch Cafe, just before the notorious Cholame “Y” where Highways 41 and 46 split.

Work has begun on a widening project along Highway 46 near the Shandon rest stop.
Work has begun on a widening project along Highway 46 near the Shandon rest stop. Laura Dickinson ldickinson@thetribunenews.com

It’s the latest of four completed phases to widen Highway 46 from Paso Robles to beyond the county’s eastern border, with the first phase completed in 2010 and the most recent in 2019.

This new phase is expected to cost $116 million, according to Caltrans.

Joe Erwin, corridor manager for Caltrans District 5, said the project will likely take about two years to complete, depending upon weather and other delays.

A groundbreaking ceremony will be held for the next phase of the widening of Highway 46 East in the Cholame area of northern San Luis Obispo County. California Assemblyman Jordon Cunningham spoke at the dedication.
A groundbreaking ceremony will be held for the next phase of the widening of Highway 46 East in the Cholame area of northern San Luis Obispo County. California Assemblyman Jordon Cunningham spoke at the dedication. Laura Dickinson ldickinson@thetribunenews.com

During that time, it’s unlikely drivers along the road will have many traffic impacts beyond some construction vehicles also using the roadway, he said.

“Luckily because this type of project is realigning away from the existing highway, there’s not going to be as much traffic disruption due to construction,” Erwin said.

A groundbreaking ceremony was held on April 15, 2022, for the next phase of the Highway 46 East widening project in the Cholame area of northern San Luis Obispo County. The project will realign the highway through the area and widen it to four lanes.
A groundbreaking ceremony was held on April 15, 2022, for the next phase of the Highway 46 East widening project in the Cholame area of northern San Luis Obispo County. The project will realign the highway through the area and widen it to four lanes. Laura Dickinson ldickinson@thetribunenews.com

Some drivers may have already noticed the miles of orange fencing that appeared throughout the area.

Erwin said the fencing will prevent protected species from entering the project site.

Work on the next phase of the project, which would reconfigure the “Y” interchange, is expected to begin construction in 2024.

Numerous officials attended a groundbreaking ceremony for a Highway 46 widening project on April 15, 2022. From left are Pete Rodgers, SLO Council of Governments; John Peschong, SLO County supervisor; Mark Padien, general manager of Atkinson Construction; Jordan Cunningham, California state assemblyman; and Craig Klingenberger, SLO CHP captain.
Numerous officials attended a groundbreaking ceremony for a Highway 46 widening project on April 15, 2022. From left are Pete Rodgers, SLO Council of Governments; John Peschong, SLO County supervisor; Mark Padien, general manager of Atkinson Construction; Jordan Cunningham, California state assemblyman; and Craig Klingenberger, SLO CHP captain. Laura Dickinson ldickinson@thetribunenews.com

This story was originally published April 16, 2022 at 12:37 PM.

Kaytlyn Leslie
The Tribune
Kaytlyn Leslie writes about business and development for The San Luis Obispo Tribune. Hailing from Nipomo, she also covers city governments and happenings in San Luis Obispo. She joined The Tribune in 2013 after graduating from Cal Poly with her journalism degree.
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