Two major utility upgrade projects aimed at improving service delivery reliability and are slated to get underway at or near the intersections of Diamond Bar Boulevard and Grand Avenue and Golden Springs Drive and Grand Avenue.
The projects began Jan. 28 with Southern California Edison (SCE) installing new electrical circuits in the vicinity of Grand Avenue and Quail Summit along Diamond Bar Boulevard, and replacing a deteriorated vault at the southwest corner of the Diamond Bar Boulevard and Grand Avenue intersection.
Sometime in early February, the Southern California Gas Company (The Gas Company) will commence its project to replace an existing 3” gas main with a 4” line to accommodate the South Coast Air Quality Management District’s compressed natural gas operations.
Construction will be carried out in phases and include nighttime work hours to minimize inconveniences to businesses, residents and motorists. Traffic lane closures will be required as follows:
- The eastbound right-turn lane along Grand Avenue will be closed for approximately three weeks beginning February 17.
- The number 2 eastbound through lane along Grand Avenue will be intermittently closed on weeknights 8:00 p.m. to 5:00 p.m. and fully closed on weekends from February 17 to March 2.
- One through lane along Golden Springs Drive will be closed from Copley Drive to Lavender Drive for one week beginning early February.
- One through lane along Golden Springs Drive will be closed from Copley Drive to Grand Avenue for one week beginning mid-February.
- One through lane along Golden Springs Drive as well as two right-turn lanes near Grand Avenue will be closed for two weeks beginning late February.
The SCE project is scheduled for completion on or before March 2, 2015 and The Gas Company project is set to begin early February 2015 and will take approximately four weeks to complete.
Traffic control measures will be in place to aid motorists traveling through project areas; temporary delays can be expected. More details on what each phase of the projects entails can be found online at www.diamondbarca.gov/utilityprojects.
