The newest phase of SBSA’s pipeline project will impact traffic along Maple Street from just before the entry to Docktown to the end of the street at the Sheriff’s facilities and Shelter Network.
· Starting the week of October 21 a by-pass detour road for this stretch will be constructed beginning at the corner where the City of Redwood City has used the property for car dealers to park cars before taking them to their lots.
· The east-west by-pass and closure of the “regular” Maple Street in this stretch will eliminate or reduce parking in many of the areas where parking has been permitted.
· The main entry to Docktown will be blocked. An alternate site for access will be clearly identified, starting just past the BIAC facility (see picture).
The above modifications will last about six months as SBSA‘s contractors build a section of the 48-inch pipeline project down the “traditional” Maple Street, which requires an open cut for the pipes. Also, parking at the end where the Sheriff’s facilities and Redwood City pump station are located, will be limited as utilities are relocated and the pipeline project proceeds down the street.
In front of Docktown SBSA contractor will construct what is called a microtunneling Jacking Shaft, which we refer to as JS1 since there is another Jacking Shaft on Bair Island Road. The jacking shafts are the “launching” shafts for the microtunneling.
The Redwood Creek crossing segment will connect the new force main from the southern end of the project on U.S. Fish & Wildlife Service property near Bair Island Road to a launching shaft located on Maple Street. All construction will tunnel under the Docktown Marina.
Microtunneling is a process that uses a remotely controlled Microtunnel Boring Machine (MTBM) combined with the pipe jacking technique to directly install product pipelines underground in a single pass. This process avoids the need to have long stretches of open trench for pipe laying. This method is also ideal for installation of pipe under sensitive habitats, waterways and other important infrastructure such as highways and railroads. Microtunneling is a method of underground construction that does not disturb the surface between the two points of "launching" and "receiving." (See this link for showing microtunneling: https://www.youtube.com/watch?v=xO-fKEZJNtU)
We want to keep you informed, so please let us stay in touch with you through these methods:
- Logon onto SBSA’s website, www.sbsa.org/ and follow updates.
- Let us send you electronic updates to your email as developments happen – send us your email to firstname.lastname@example.org or email@example.com and ask for Pipeline Project Updates.
- Follow us on Twitter and/or Facebook.
- Follow our blog at the Redwood City-Woodside Patch.
- If you have questions, complaints, or concerns, call Duane Sandul at 650-585-2181 or email him at firstname.lastname@example.org.