A traffic safety project that will improve the SR 57 and 60 freeways. Managed by @SGVCOG 🦺
Diamond Bar, CA
Joined September 2021
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SR 57/60 Confluence Chokepoint Relief Project retweeted
🚧 TRAFFIC ALERT:
Full overnight closures of WB SR-60 between Lemon Ave. and Diamond Bar Blvd. are scheduled for Sept. 19 and 20. Plan ahead and expect delays.
#5760Project #SR60 #TrafficAlert
SR 57/60 Confluence Chokepoint Relief Project retweeted
🚧 Traffic Alert: WB SR-60 will be closed from Lemon Ave to Diamond Bar Blvd Sept. 12, 12–6 a.m. & Sept. 13, 12–8 a.m. Plan ahead and expect delays. #SR60 #TrafficAlert #5760Project
SR 57/60 Confluence Chokepoint Relief Project retweeted
🚧 Construction Alert: Overnight closures on EB SR-60 this weekend!
📅 Sat, Aug. 15: 12 AM–6 AM
📅 Sun, Aug. 16: 12 AM–8 AM
Full closure between Lemon Ave. & Diamond Bar Blvd. for ongoing project work. Plan ahead, follow detours, and allow extra time.
#SR60 #TrafficAlert
SR 57/60 Confluence Chokepoint Relief Project retweeted
🚧 Traffic Alert: Every Saturday & Sunday in August, EB SR-60 between Lemon Ave & Diamond Bar Blvd will be fully closed overnight for construction.
🕛 Sat: 12 AM–6 AM
🕛 Sun: 12 AM–8 AM
Plan ahead, expect delays, and follow posted detours. 🚗⚠️
#TrafficAlert #SR60 #SR57
SR 57/60 Confluence Chokepoint Relief Project retweeted
🚧 EB SR-60 CLOSURE
(Diamond Bar Blvd → Lemon Ave)
❌ EB 60 → Grand Ave (on/off) CLOSED
❌ NB 57 → EB 60 CLOSED
✔ EB 60 → SB 57 OPEN
✔ Pathfinder on-ramp OPEN (to WB 60 only)
✔ Lemon Ave on-ramp OPEN (to SB 57 only)
Grand Ave bridge OPEN (lane closures)
Plan ahead!
SR 57/60 Confluence Chokepoint Relief Project retweeted
🚧 SR-60 Closure 🚧
March 28 (12–6 AM): WB closed
March 29 (12–8 AM): EB & WB closed
📍 Lemon Ave/Brea Canyon Rd → Diamond Bar Blvd
⚠️ Ramps affected
Plan ahead & expect delays.
SR 57/60 Confluence Chokepoint Relief Project retweeted
NEWS: There will be a series of weekend closures starting March 14 impacting the on/off ramps and connectors for the SR-57/60 Diamond Bar region. Please plan ahead and use alternatre routes. For more details, visit sgvcog.org/pressreleases or @5760Project #DiamondBar
SR 57/60 Confluence Chokepoint Relief Project retweeted
60 Freeway in Diamond Bar to close for hours Sunday; project aims to ease traffic bottleneck abc7.la/4nj69FW
SR 57/60 Confluence Chokepoint Relief Project retweeted
🚧 Overnight Closure - September 19 🚧
Grand Ave CLOSED in both directions
📍 Golden Springs Dr to Baker Pkwy
🕗 8 PM – 8 AM
❌ All SR-60 on/off-ramps in area affected
⚠️ Expect delays
🚗 Use alternate routes
✅ Plan ahead & drive safe
@DiamondBarCity @CaltransDist7
SR 57/60 Confluence Chokepoint Relief Project retweeted
🚧 Eastbound SR-60 Overnight Closure – September 7 🚧
A closure of EB SR-60 between Lemon Ave and Diamond Bar Blvd is scheduled for:
🗓 Sunday, September 7
🕛 12:00 AM to 8:00 AM
⚠️ Several on- and off-ramps in the area will be closed — see notice below for full details.
SR 57/60 Confluence Chokepoint Relief Project retweeted
🚧 57/60 Confluence Project Traffic Alert Construction Closure Notice for June 30 - July 3.
Contractors will temporarily close the eastbound SR-60 Diamond Bar Boulevard on-ramp and northbound SR-57 Pathfinder Road on-ramp. Lanes on the northbound SR-57 connector to the eastbound SR-60 will experience intermittent lane closures during the evenings.
🚫 Closures:
(Nighttime) NB SR-57 Pathfinder Road on-ramp: June 30 - July 2 (7 p.m.-6 a.m.)
(Nighttime) EB SR-60 Diamond Bar Boulevard on-ramp: June 30 - July 2 (7 p.m.-6 a.m.)
For more information and project updates, visit sgvcog.org/5760project
SR 57/60 Confluence Chokepoint Relief Project retweeted
Last night, we swore in a new President. Claremont Councilmember Ed Reece brings decades of small business experience to the role, and a track record for getting things done. He also makes history as the first openly LGBTQ+ President of our Governing Board. Congratulations Ed!
SR 57/60 Confluence Chokepoint Relief Project retweeted
Mayor Moss joined a @SGVCOG delegation to provide a tour of the @5760Project to @RepLindaSanchez. We are excited to see the progress being made as it is expected to enhance safety, alleviate congestion, and strengthen the surrounding communities once completed.
SR 57/60 Confluence Chokepoint Relief Project retweeted
This Memorial Day, we salute the men and women in uniform who paid the ultimate sacrifice for freedom. On behalf of the San Gabriel Valley Council of Governments, we join Americans across the country in offering our respect and gratitude.
SR 57/60 Confluence Chokepoint Relief Project retweeted
This #PublicWorksWeek, we're joining cities across America to celebrate the essential workers who keep our cities running.
SGVCOG Public Works Chair Robert Delgadillo stated: From safe streets, clean water, to infrastructure improvements, Public Works professionals do it all!
SR 57/60 Confluence Chokepoint Relief Project retweeted
Our monthly newsletter posted! We're excited to report a new grant award by the USDA, plans for the North Pomona Station along the Metro A Line, SR 57/60 Project updates...and more. Read all about it at mailchi.mp/sgvcog/sgvcog-val…
SR 57/60 Confluence Chokepoint Relief Project retweeted
UPDATE: 4-23-25
The SGVCOG has made an update to the Construction Notice graphic in the "What to Expect" section.
"WHAT TO EXPECT
Eastbound SR-60 Grand Avenue off-ramp will be closed. Please use eastbound SR-60 Diamond Bar Boulevard and
Lemon Avenue off-ramps as detours. Left turn lanes from westbound SR-60 Grand Ave off-ramp will be closed.
Nortbound traffic on Grand Avenue will remain open. Please use Valley Boulevard and Diamond Bar Boulevard
for east-west travel and Temple Avenue for southbound travel. Westerly sidewalk of Grand Avenue will be closed.
Pedestrian access will be maintained on easterly sidewalk of Grand Avenue. Businesses will remain open during the
closure. Motorists should prepare for potential delays. Additionally, residents and businesses near the construction."
🚧 57/60 Confluence Project Traffic Alert Construction Closure Notice for May 2-5 (59-hour partial closure).
Contractors are scheduled to work on Grand Avenue as part of a 59-hour partial closure. This includes closing southbound traffic on the Grand Avenue Bridge and the eastbound SR-60 Grand Avenue off-ramp for utility relocations, excavation, paving and striping.
🚫 Closures:
EB SR-60 Grand Avenue off-ramp: May 2 (7 p.m.)-May 5 (6 a.m.)
SB Grand Avenue Bridge: May 2 (7 p.m.)-May 5 (6 a.m.)
More info and project updates: sgvcog.org/5760project
SR 57/60 Confluence Chokepoint Relief Project retweeted
⚠️Construction Alert!⚠️ On May 2-5, the EB SR-60 Grand Ave off-ramp and SB Grand Ave Bridge will be closed for 59 hours. Please plan ahead and follow all traffic signs in the area! @SGVCOG @5760Project
SR 57/60 Confluence Chokepoint Relief Project retweeted
⚠️Construction Alert!⚠️ On May 2-5, the EB SR-60 Grand Ave off-ramp and SB Grand Ave Bridge will be closed for 59 hours. Please plan ahead and follow all traffic signs in the area! @SGVCOG @5760Project
SR 57/60 Confluence Chokepoint Relief Project retweeted
We were honored to welcome students from the National Defense University for site tours of @FullertonGS and @5760Project. These transformative infrastructure projects prioritize safety while reducing traffic congestion--delivering long-term benefits across the region.
