Alameda to Coast Guard Island
The Second Crossing
From its spot in the middle of the Oakland Estuary, the Coast Guard relies on AMP for its electricity as it protects our ports and waterways and provides homeland security for the nation.
This spring, AMP will embark on one of its largest capital improvement projects in many years: building a second electrical crossing to Coast Guard Island.
Here in Alameda, our power system is built so that just about every house or business has an alternate power source, meaning there are two paths to bring power to your street. If there’s an incident in one direction that knocks out power, we can reroute the power from another direction. But Coast Guard Island Alameda has just one feed to power it, and the need for a second path is vital to their mission.
Adding a second crossing is no easy task though. It will be installed 60 feet beneath the Oakland Estuary using horizontal directional methods and require roughly 1,600 feet of electrical conduit, which will need to be assembled on land before it is pulled through the bore hole that will be drilled.Conduit assembly, which will take approximately five weeks, will stretch from the back of the Shell/Pennzoil lot, along Clement Street, and then curve into the former Chipman property. The conduit will be built on a framework of rollers on the ground so it can be easily fed through the bore hole under the estuary.
How It May Affect You
During construction, the drill will exit the estuary just north of Fortmann Way. Access to Grand Street,
Clement Avenue and Fortman Way will remain open at all times. However, the boat ramp and adjacent parking lot will be closed for 8-12 hours during the latter phase of construction. Additionally, the parking lot that serves Marina Waterfront Park, near the corner of Clement Avenue and Ohlone Street, will be closed for five weeks. We apologize for any inconvenience that our construction will cause.
AMP will keep you posted about closures and traffic diversions through the media, Facebook and
Twitter. To learn more about the project and watch its progress, visit our website or Facebook page.
State Clearinghouse Number: 2013072044
Notice is hereby given that a public hearing will be held before the City of Alameda’s Public Utilities Board on Monday, September 16, 2013 at or after 7 p.m. in Council Chambers, City Hall, 2263 Santa Clara Avenue, regarding the following:
The Public Utilities Board will take action on an Initial Study and Mitigated Negative Declaration for a proposed Alameda to Coast Guard Island HDPE (High Density Polyethylene) Conduit Crossing, once public comments, if any, are considered. The initial study and mitigated negative declaration were available for a public review period from July 19 – August 19, 2013. Alameda Municipal Power proposes to install a utility line conduit crossing between Alameda Island and Coast Guard Island to provide additional electrical capacity to Coast Guard Island. The conduit crossing, consisting of three, 6-inch high density polyethylene pipes, would be installed beneath the Oakland Estuary using Horizontal Directional Drilling (HDD) methods. The proposed Mitigated Negative Declaration addresses the potential this project has to result in minor and less than significant, short and long term adverse impacts relative to air quality, aesthetics, biological resources, geology and soils, hazardous materials, hydrology and water quality, noise, transportation/traffic, and utilities and service systems. With implementation of mitigation identified in the Mitigated Negative Declaration, potential significant impacts would be avoided, minimized, reduced, or rectified to a level that is less than significant.