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Posted on: August 9, 2017

Notice of Public Meeting: Hawthorne Utility Undergrounding and Mitigated Negative Declaration

Notice of Intent to Adopt a Mitigated Negative Declaration and Notice of Public Meeting to Consider Project Approval: Hawthorne Utility Undergrounding Project

Project Location: The vicinity of 700 Tiburon Boulevard, Town of Tiburon, Marin County, California, as shown on this map.

Project Sponsor/Applicant: Town of Tiburon

Project Setting and Description: The project area is located within the Town of Tiburon. The project area is primarily developed with single family residential dwellings, and also includes the Belvedere Tennis Club, Saint Hilary Church and School, and the Community Congregational Church. Public streets that are included within the project area in their entirety include Palmer Court, Rock Hill Road, Hawthorne Drive, Maravista Court, and Delmar Drive. This project area also includes portions of Tiburon Boulevard, from approximately Bayshore Terrace to a pump station southeast of the Belvedere Tennis Club, and Hilary Drive from the last aboveground utility pole between Theresa Court and Maravista Court to Saint Hilary Church and School.

The Town of Tiburon (Town) Public Works Department is proposing the the Hawthorne Utility Undergrounding Project (Project). The project includes relocating the Pacific Gas & Electric (PG&E) Power, AT&T Telephone, and Comcast Communications aerial facilities to underground along Delmar Drive, Hawthorne Drive, Maravista Court, Palmer Court, Rock Hill Drive, Hilary Drive and portions of Tiburon Boulevard within the Town of Tiburon. 

Within the residential portion of the project area, project actions would include the installation of mainline underground power, telephone and cable conduit, appurtenant manholes and pullboxes, and subsurface and surface-located transformers. The project would also include the installation of service conduit and appurtenances to the property lines within the project area. New conductors would be installed within these conduits and underground structures by the utility companies. Lastly, the existing overhead power, telephone and cable wires, utility poles, residential service drops and streetlights would be removed, and new streetlights would be installed to replace those removed. 

Within the Belvedere Tennis Club portion of the project area, project actions would include the installation of mainline underground power, telephone and cable conduit, appurtenant manholes and pullboxes, and subsurface and surface-located transformers extending under Tiburon Boulevard from the transformer adjacent to the pump station to the southeast of the Belvedere Tennis Club, connecting to the remainder of the alignments throughout the project area. Within this area, there is an option to underground a portion of the alignment through the parking lot of the Belvedere Tennis Club, instead of along Tiburon Boulevard. If this alignment is installed, the underground utilities would reconnect to Tiburon Boulevard at the main entrance to the parking lot, and connect to the remaining alignments throughout the project area. Once the underground facilities are installed, the overhead power lines, telephone and cable wires, and utility poles, including those between the Belvedere Tennis Club and Richardson Bay Lineal Park, would be removed. 

The purpose of the project is to improve system safety and reliability, as well as neighborhood aesthetics. Undergrounding the utilities improves the safety and reliability of the system, as storms and adverse environmental changes may currently result in broken lines, falling poles and degradation over time. These risks to the utilities would be minimized through the protection offered by undergrounding the wires. New streetlights along Tiburon Boulevard would replace the existing older structures, maintaining safety to adjacent residences. Undergrounding the utility system would improve neighborhood aesthetics because existing views of Richardson Bay from within and adjacent to this residential area are obstructed by the network of utility poles and associated aerial wires, while much of the surrounding area already supports undergrounded utilities. 

Project is Subject to Environmental Review

Consistent with the provisions of the California Environmental Quality Act (CEQA) Guidelines, an Initial Study has been prepared to assess the environmental impacts of the project. The Initial Study has been prepared to assess the environmental impacts of the project. The Initial Study recommends the adoption of a Mitigated Negative Declaration. A copy of the Initial Study/Draft Mitigated Negative Declaration is available for review at the Tiburon Planning Division, 1505 Tiburon Boulevard, Tiburon, California, during normal business hours. Copies are also available for review at the Belvedere-Tiburon Public Library, 1501 Tiburon Boulevard, Tiburon, California. The Initial Study/Draft Mitigated Negative Declaration may also be viewed here.

A 30-day public review period will be observed for your review and comment on this document. The public review period commences on August 16, 2017 and will close on September 18, 2017. Written comments on the Initial Study/Draft Mitigated Negative Declaration can be submitted to the Town of Tiburon at any time up to 5:30 p.m. on September 18, 2017.

The Town Council will hold a public meeting to consider adoption of the Mitigated Negative Declaration and project approval on Wednesday, September 20, 2017. The meeting will begin at 7:30 p.m. and will be held in the Tiburon Town Council Chambers, 1505 Tiburon Boulevard, Tiburon, California. 

If you have any questions or need additional information, please feel free to contact Patrick Barnes, Director of Public Works/Town Engineer, at (415)435-7388 or at pbarnes@townoftiburon.org.

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