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Supervisors grill PUC and developer over 8 Washington plan that would come within feet of major sewer lines
Summary
A contentious hearing probed engineering, seismic and liability risks after city engineers'and an outside consultant flagged that the proposed 8 Washington development would come as close as 3.5 feet to a century-old Jackson Street sewer box and within six feet of the North Shore Force Main, which PUC staff said carries about 20,000,000 gallons per day and serves roughly 25% of San Francisco on a typical workday.
Board President David Chiu led a lengthy hearing into possible impacts of the proposed 8 Washington development on city sewer infrastructure, focusing on two critical assets: the Jackson Street box (a large rectangular sewer box) and the North Shore Force Main.
Chiu opened by highlighting recent sewer failures and photographs of sinkholes and damaged homes, and asked utility staff to explain what lies under the project site. PUC staff explained the site overlaps both the Jackson Street box and portions of the North Shore Force Main and described planned easement adjustments and a draft utilities agreement that would require developer design approval, monitoring and indemnification provisions.
PUC project managers said their independent review commissioned a third-party engineering report that found…
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