91 Project Update
June 2015

Thank you for your interest in the Riverside County Transportation Commission's 91 Project. This monthly e-bulletin offers news and updates about this project, which is under construction in Corona and Riverside. For the latest information, please stay connected through the links below and the project helpline.

91 Corona Squeeze Begins; Narrower Lanes in Place for 10 Months

The "91 Corona Squeeze" began June 1 with newly restriped eastbound and westbound lanes on the 91 between Main Street and the 71. Lane widths now are 10.5 feet, except for the "slow lane," which remains 12 feet wide. Crews worked at nights on June 1 and 2 to restripe the roadway, finishing several days early. The narrower lanes will allow crews to work safely and efficiently behind K-rail during the next 10 months.


K-rail will be placed along the outside lanes in one-mile segments for crews to perform work. Within these one-mile segments, there will be no outside shoulder for stranded vehicles. Motorists should proceed to areas with available shoulders, should emergencies arise. The Riverside County Transportation Commission, which is leading the 91 Project, has increased Freeway Service Patrol tow trucks during the "Squeeze" to help stranded motorists.


When traveling through this area, please remember to:

  • Follow the 55 miles per hour speed limit; fines are doubled in construction zones
  • Allow for extra travel time and be alert for changing traffic and construction conditions
  • Watch for signs about upcoming narrow lanes
  • Be aware of motorcycle riders; motorcyclists should be extremely cautious, particularly if splitting lanes
  • Adjust travel plans to off-peak hours and, if possible, use alternate routes
  • Carpool or use public transit when possible. For information about Metrolink commuter rail service, visit www.metrolinktrains.com


First Phase of 91 Serfas/Maple Makeover Starts Friday, June 26 at 9 p.m.

As part of the Riverside County Transportation Commission's 91 Project, the first phase of the 91 Serfas/Maple Makeover kicks off on Friday, June 26, 2015 at 9 p.m. This is a major milestone of the project that will revamp both interchanges and Frontage Road between Serfas Club Drive and Paseo Grande.


The first phase of work will include three key activities:

  • Access onto Eastbound 91 Serfas Club Drive on-ramp - On Friday, June 26 at 9 p.m., access onto eastbound 91 Serfas Club Drive on-ramp will only be allowed from northbound Serfas Club Drive. Southbound Serfas Club Drive motorists will access eastbound 91 by turning left onto Frontage Road and turning left onto Paseo Grande and make a final left onto Sixth Street to enter the eastbound 91 Maple Street on-ramp. This activity allows crews to begin utility relocation work to ultimately widen the 91 and build the new eastbound ramps for Serfas Club Drive and Maple Street. Overall, the Serfas/Maple Makeover will take about 18 months to complete. In mid-August 2015, the new eastbound 91 Maple Street/Paseo Grande on-ramp will open and provide a direct connection to entering eastbound 91 from Frontage Road. The existing eastbound 91 Serfas Club Drive on-ramp will be completely closed at the time for approximately 15 months.
  • Lane Reductions on Serfas Club Drive between Pine Crest Drive and Wardlow Road - A combination of water, reclaimed water, sewer and storm drain relocations as well as retaining walls and roadway lowering will take place on Serfas Club Drive that will require 24/7 lane reductions through the end of 2015. Striping of the new configuration will begin on Friday, June 26 at 9 p.m. There will be chages to traffic staging configurations on Serfas Club Drive to accommodate these activities. Motorists can expect delays.
  • 55-Hour Closure of Westbound 91 Maple Street On-Ramp - This ramp will close on Friday, June 26 at 9 p.m. and re-open on Monday, June 29 at 4:30 a.m. This closure will allow for drainage relocation work to take place. During this closure, motorists can enter westbound 91 at Lincoln Avenue or Serfas Club Drive.

Please allow extra travel time, use alternate routes, travel during off-peak hours, carpool and use public transit when possible.


Additional information on future phases of the Serfas/Maple Makeover will become available in the weeks to come. 


Not signed up to receive Construction Alerts? There are several ways to "Stay Connected." Please call the project helpline, 877-770-9191, use the "Contact Us" page of the website, "Like Us" on Facebook or "Follow" us on Twitter.  


Construction Progress: By the Numbers

What a difference a year makes! Construction of the Riverside County Transportation Commission's 91 Project is in high gear, with evidence of work throughout Corona. Motorists can see cranes and other heavy equipment in action, bridge columns rising from the ground, fresh pavement, new retaining walls, large mounds of fill dirt and miles of construction cones. This progress can be translated into data, providing a "progress report" for the community.


As of this month, 30 percent of construction and 97% of design are complete. The Riverside County Transportation Commission is using a design-build approach for the project, with design and construction activities being completed concurrently by one team, which is saving three to four years in project delivery time. The new lanes are expected to open in 2017.


A significant milestone was achieved in June, when the final property purchased by RCTC was transferred to the construction contractor. RCTC purchased close to 200 full or partial properties to make room for the new lanes and other project improvements.


Another major activity was the completion of the first project bridge this spring - the eastbound 91 to Interstate 15 bridge connector over the railroad tracks. This was the first of 32 bridges to be completed; 15 of the remaining 31 bridges are currently under construction.  Please see below for additional progress updates and take a look at the progress video.

Business Spotlight: Crumbles Cookies & Bakery

Crumbles Cookies & Bakery - That's the way cookie crumbles in Corona. This family-owned business opened in 2005 with a commitment to making the best tasting cookies, bars, cinnamon rolls and scones in the southland at a reasonable price.


Crumbles Cookies bakes 23 cookie varieties each day that reflect their passion for desserts and fine food. Customers are delighted when they leave the bakery, because Crumbles Cookies focuses on taste, consistent quality and "over-the-top" customer service. Visit this delicious hidden gem at their store located off Interstate 15. For an even sweeter deal, go to the "Shop 91. Shop Local." webpage page for a buy one, get one half off coupon!


Crumbles Cookies

1191-C Magnolia Ave., Corona, CA 92879


Hours of Operation: Monday - Friday, 8 am - 6 pm; Saturday, 10 am - 4 pm; 

Sunday & Holidays, Closed



* Business Spotlights are for informational purposes only. The 91 Project, RCTC and partner agencies are not endorsing these businesses.


Business Spotlight: Dave's Muffler and Hitch

Dave's Muffler and Hitch is a modern blacksmith shop, specializing in automobiles of all types including classics and customs. This year marks their 50th anniversary as a Corona business and their reputation is flawless. Experts know Dave's Muffler and Hitch prides itself on their high performance exhaust and prefabricated hitches. Services include cat back systems, cold air intake systems, mufflers and exhaust repairs. The welding and fabrication department is able to build a multitude of applications with various metals.


The next time that dreaded "check engine" light shows up on the dashboard, stop by for a professional inspection. Dave's Muffler and Hitch is prepared for any challenge, whether it's a classic car or a big rig. Please see shop address and hours below.


Dave's Muffler and Hitch

1888 West Sixth Street, Unit L, Corona, CA 92882


Hours of Operation: Monday - Friday, 8 am - 5 pm, Saturday & Sunday, Closed



* Business Spotlights are for informational purposes only. The 91 Project, RCTC and partner agencies are not endorsing these businesses.

Project Overview

Led by the Riverside County Transportation Commission (RCTC), the 91 Project will add regular lanes, tolled express lanes, auxiliary lanes and a direct express lane connector from northbound 15 to westbound 91 and eastbound 91 to  southbound 15. Improvements to interchanges, bridges, ramps,  and local streets also will be made along the 91.

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