Long Beach, CA
File #: 10-0144    Version: 1 Name: PW-Main Library Roof Waterproofing D2
Type: Contract Status: CCIS
File created: 1/26/2010 In control: City Council
On agenda: 2/9/2010 Final action: 2/9/2010
Title: Recommendation to adopt Plans and Specifications No. R-6812 for the construction of the Main Library roof waterproofing at 101 Pacific Avenue; and authorize City Manager to award and execute a contract with Best Contracting Services, Inc. in an estimated amount of $1,333,870 plus a ten percent contingency amount of $133,387, if necessary, for a total of $1,467,257, and any amendments thereto. (District 2)
Sponsors: Public Works
Indexes: Contracts
Attachments: 1. 020910-R-18sr.pdf, 2. 020910-R-18att.pdf
Related files: 31531_000, 07-0739
TITLE
Recommendation to adopt Plans and Specifications No. R-6812 for the construction of the Main Library roof waterproofing at 101 Pacific Avenue; and authorize City Manager to award and execute a contract with Best Contracting Services, Inc. in an estimated amount of $1,333,870 plus a ten percent contingency amount of $133,387, if necessary, for a total of $1,467,257, and any amendments thereto. (District 2)

DISCUSSION
The Main Library roof suffers from extensive water intrusion during wet weather due to the deteriorating condition of the waterproofing membrane and interior drain lines, and is in need of repair to prevent further damage to the library interior improvements, books, collections, artwork, computers and furniture. Over the past several months, Public Works staff has removed all dirt and vegetation from the roof and has applied a temporary waterproof barrier to mitigate major leak issues. The historical use of the roof as a park has been suspended for an indefinite, but temporary, timeframe until resources can be identified to restore the park to active use.

Additional permanent waterproofing work will consist of a sprayed fiberglass reinforced emulsion membrane and storm water drainage system, which will enable the existing interior drains to be abandoned. The temporary waterproofing repairs have been completed using the same material that will be integrated into the new membrane.
Storm water will be discharged from the library roof by a combination of core holes and drains that do not discharge through the interior of the library. As part of the work, the main floor restrooms will be made fully accessible in accordance with the American Disabilities Act, and the gates on the rooftop fire egress route will be improved with retrofitted panic hardware. A vicinity map is attached as Exhibit A.

City Council adoption of the Plans and Specifications and award of the contract to the lowest responsible bidder are being recommended. The project was ad...

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