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Lambertville officials outline plan for overhead Swan Creek water-main crossing after repeated flood failures
Summary
A city presentation proposed an above-bridge utility structure to replace a repeatedly failing buried water main at Swan Creek, citing flood damage, county restrictions on bridge attachments, neighborhood impacts from directional drilling, and multiple required permits including FEMA no-rise certification and State Historic Preservation review.
Jim Master, who said he has overseen Lambertville’s water system work for about 20 years, told the council the Swan Creek crossing has failed in storms — most recently during Ida — and that the city must harden the connection to avoid future widespread outages.
Master described three alternatives: horizontal directional drilling through the adjacent parking area (which he said would require large staging pits and weeks of disruption), attaching a pipe to the county-owned bridge (which the county declined to allow), or building an overhead utility support structure mounted near the existing bridge. He said the overhead structure is the option staff now propose to study further because it better protects the pipe from debris and flood forces while keeping the pipe accessible for maintenance.
Master said the concept would place the pipe roughly six feet off the existing bridge, require a slight curb/footwall realignment and the relocation of one parking space and meter, and would be visible from the canal. To reduce informal cross‑cutting through that area, staff proposed adding a formal walkway and rebuilding a degraded bench area adjacent to the creek.
"We want to harden this; we don't want this to ever break again," Master said, describing the project as a reliability and public-safety improvement rather than flood mitigation per se.
City officials emphasized this was an informational briefing, not a decision. Master listed required approvals before any construction, including a flood-hazard-area permit, freshwater-wetlands permit (for both overhead and in-stream work), review by the State Historic Preservation Office, coordination with the Delaware & Raritan Canal Commission, and a FEMA no‑rise certification to confirm the crossing will not worsen high flows. He also said the city would need an easement on the parking-lot side of the creek if the alignment encroaches beyond the public right of way.
Council members and residents pressed staff on noise, safety and aesthetics, and on whether the structure would impede flood flows. Master and the mayor said the structure would be designed to avoid adverse effects on flow and to include railings and other details to prevent access onto the utility structure.
Next steps include preparing site-specific renderings and detailed design documents to be reviewed with town staff and relevant agencies prior to any formal approvals or permit submittals.
