Construction on Maple Street is making good progress. The first of three segments of the 48-inch force main to be installed on Maple Street was successfully installed last week. The installation includes the new San Mateo County Jail’s 20-inch gravity sewer in the same trench. This week contractors have begun the backfill operations for this first segment, which spans approximately 300-feet.
Next week (starting June 30) they will continue backfilling the first segment, while simultaneously removing the shoring system. Removal of the shoring system will generate noise and vibrations that are anticipated to last through July 18. Most of the truck traffic associated with this work will be from about 7 am to 4:30 pm.
Following this first 300-foot segment, there will be two more 300-foot segments to complete. Traffic control set up for the second segment is anticipated to begin the week of July 21. The new traffic control will shift traffic to the opposite side of the street so that it runs in front of the FERMA yard and Redwood City Police Department (east side of the street), instead of in front of the Shelter and the Sheriff’s facilities. The duration for this next traffic phase is anticipated to be in effect for 2 ½ months.
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In addition to the backfilling of the first segment of the 48-inch force main on Maple Street (noted above), this week the contractor has also commenced pile installation at the end of Maple Street close to Highway 101. The pile installation is being performed so that the new 48-inch force main can be connected to the existing 48-inch force main that currently runs parallel to Highway 101. The pile driving will cause loud sounds and vibrations that are anticipated to continue through June 30. Upon completion of the pile driving, the contractor will commence excavation to the bottom of the new shoring system to make preparations for the future connection. Most of the truck traffic associated with this work will be from about 7 am to 3:30 pm.
The noise from the highway is louder than the pile driving. So, Docktown residents should not hear the pile driving noise. A contractor out in the field this morning reported that the noise/vibrations were not very noticeable while standing 100 feet away. The work is very noticeable, however, because of the piles that are sticking up out of the ground.
