Dear Community Members:
Please see the attached important press release regarding the closure of the Dornan Drive Tunnel.
The short summary is that today, the contractor for the Dornan Drive Tunnel repair project, TPA Construction Inc., encountered an area on the top of the inside of the tunnel that showed significant concrete failure, which was causing large pieces of concrete to fall to the ground. Upon further investigation, the construction team, which includes TPA Construction Inc., project manager Swinerton Management and Consulting, and City of Richmond engineering staff discovered a large void above the tunnel lining. Upon further visual inspection, the void, which would be analogous to an attic crawl space above a ceiling in a house, is approximately 12 feet long by 10 feet wide with a 4 foot depth. The remaining concrete that separates the void from the inside of the tunnel is approximately 4-5 inches thick, without any structural reinforcement to keep it in place.
Upon the recommendation of The Crosby Group, the design engineer for the project, and a licensed structural engineer, the Dornan Drive Tunnel has been closed. For the safety of the Richmond community and the workers, the closure will be in effect throughout the structural repair of this void and throughout the remainder of the project to repair and enhance the concrete lining as originally scoped.
The estimated duration of the Dornan Drive Tunnel closure is approximately three months, until April 30, 2013. During this closure, detours will be in place for access from the Point Richmond commercial area to Keller Beach Park and the Brickyard Cove and Seacliff neighborhoods. Motorists can access those areas via Washington Avenue to Western Drive. Alternatively, the Brickyard Cove and Seacliff neighborhoods can be accessed through Canal Boulevard and Seacliff Drive.
We have notified the press, neighborhood councils, and the various e-mail lists that we have on file. Please feel free to distribute this information widely.
While we understand that the temporary closure of the Dornan Drive Tunnel is an inconvenience to residents, we also believe that it is in the best interest of public safety. We apologize for this inconvenience and appreciate your patience.
Please follow this link for more information and a detailed map of the area. [http://www.ci.richmond.ca.us/DocumentCenter/View/26296]
Please feel free to contact me if you have any questions or require any additional information.
Sincerely,
Bill Lindsay
Bill Lindsay
City Manager
City of Richmond
450 Civic Center Plaza
Richmond, California 94804
(510) 620-6512 [tel:%28510%29%20620-6512]
Bill_lindsay@ci.richmond.ca.us [mailto:Bill_lindsay@ci.richmond.ca.us]
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