Michelson Force Main Sewer Improvements

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Michelson Force Main Sewer Improvements

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Irvine Ranch Water District contractors will be upgrading the sewer line that runs along Michelson Drive from Jamboree Road east beyond Riparian View. Traffic will be heavily impacted by lane closures at construction areas as work is underway.

The project is expected to begin in early November, 2018, with road construction starting Nov. 26. Work is expected to continue into the spring of 2019.

Construction hours:

Daytime

• From 9 a.m. to 3 p.m. Mondays through Fridays.

• From 5 a.m. to 5 p.m. Saturdays.

Nighttime

• Intermittently from 9 p.m. Fridays to 5 a.m. Saturdays.

Where: Construction will occur mostly in the eastbound lanes of Michelson Avenue. Left-turn lanes from westbound Michelson to southbound Jamboree will be closed during portions of Phase 1 construction.

Project impacts:

• Traffic lanes will be closed at the various construction zones while work is being performed at each respective location. Morning and lunch-hour traffic is expected to be severe. Motorists are advised to use alternative routes, to access the 405 freeway via Culver Drive, and to enter Michelson Drive from Harvard Avenue.

• Bus stops (marked in blue on the map above) may be periodically closed.

• Bicyclists and motorists will be required to share the road in construction areas.

Questions: Please contact IRWD’s Public Affairs Department at info@irwd.com or 949-453-5500 during business hours. After-hours questions should be directed to the customer service line at 949-453-5300.

Project Information

Construction and Traffic Updates+

Week of Feb. 4, 2019:

Rain has delayed the installation of CIPP liner at the third and final segment of Phase 1, located east of the other two construction areas. Weather permitting, the work will take place from 9 p.m. Friday, Feb. 8 through 5 p.m. Sunday, Feb. 10.

Week of Jan. 14, 2019:

Crews will be working consistently from 9 p.m. Fridays to noon on Sundays the weekends of Jan. 18, 25 and Feb. 1 to install a cured-in-place-pipe liner in the force main at the three construction areas located within Phase 1 of the project.

Week of Jan. 7, 2019:

Excavation work has been completed at vaults 1, 2 and 3. Pipe-cutting will take place this week at each location, followed by a dewatering process and pipe-cleaning on Friday. The pipe-cleaning is scheduled to take place on Friday night after 9 p.m.

Week of Dec. 17, 2018:

Roadway construction for Phase 1 began this week to excavate access pits near the intersection of Michelson Avenue and Jamboree Road. Traffic controls include the closure of left-turn lanes from westbound Michelson onto southbound Jamboree. Excavation work will move eastward on Michelson as the project progresses.

Week of Oct. 15, 2018:

Revised plans have been submitted to the city for review and the new design should be finalized next week.

Week of Oct. 1, 2018:

Conflicts with a utility line discovered during the potholing process resulted in a delay as plans were redesigned. Work is expected to resume in mid-October.

Week of Sept. 17, 2018:

Work began this week identifying access pit areas. Road construction will begin next week for Phase 1 of the project, beginning at the intersection of Michelson and Jamboree.

Week of Sept. 10, 2018:

Excavation of access pits 1 to 3 (Phase 1) is expected to commence next week.

Week of Aug. 6, 2018:

Phase 1 construction is scheduled to begin Aug. 20 at the construction area farthest west, close to the intersection with Jamboree Road. A left turn lane from westbound Michelson to southbound Jamboree will be closed during construction hours, and traffic will be severely impacted.

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