Best Of 2006 - McGraw Hill Construction

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Best of 2006 Southern California Demand necessitated that the Santa Monica Main Library grow. More parking, more material and more meeting rooms were needed for Santa Monica residents. When the new Santa Monica Main Library opened in January 2006, Santa Monica had found a new community resource for the 21st century. The 104,000-sq.-ft., two-story library included more meeting rooms, more Judges’ Comments parking spaces and was designed not only with an eye toward architectural design, but sustainability, as well. Located in Santa Monica’s downtown, the new Main Library sits on the site of the former library, demolished in 2003. Construction on the new $73.9 million library started in 2004. Santa Monica Main Library, Santa Monica The new library includes a number of features that set it apart from other civic libraries. An inverted roof form, a classic Roman-style impluvium, makes the highest part of the building at street edge, but also serves to move rain water toward the building’s central courtyard. That 10,000-sq.-ft. courtyard can be used for special events or outdoor reading. “Commitment to sustainability is exemplary.” “Design, functionability—it’s got everything.” To alleviate parking woes, a subterranean three-level parking garage was built. Two entrances were built to encourage pedestrian access to the library. Daylighting was included for both readers and computer users throughout the library. Other areas included a café, children and teen area 59 California Construction 12/2006 Project Team Civic Winner Owner City of Santa Monica General Contractor Morley Construction Co., Santa Monica Architect Moore Ruble Yudell Architects, Santa Monica Structural Engineer Nabih Youssef Associates, Inc., Los Angeles Civil Engineer KPFF Consulting Engineers, Los Angeles M/E/P Engineer Syska Hennessy Group, Los Angeles Landscape Architect Pamela Burton & Co., Santa Monica and an auditorium. The library can accommodate 400,000 materials and the facility can be expanded to hold more. A storm retention system was installed that reduces runoff by 20 percent. Waterless urinals, low restroom faucets and dual flush toilets were also installed to save water use. Dual-glazed windows and solar panels on the roof were incorporated to reduce energy use. No CFC or HCFC-based refrigerants were used in the building’s heating or cooling systems. During demolition, nearly all of the existing concrete was recycled.
Best of 2006 Southern California After more than 70 years of use and constant exposure to ocean elements, North Torrey Pines Road Bridge needed to be rebuilt. The 340-ft. North Torrey Pines Road bridge was built to replace a structurallydeficient and obsolete bridge that ran across Los Penasquitos Creek and Lagoon. The old bridge had 72 pilings that hindered the natural flushing of the lagoon. Judges’ Comments “Smooth lanes.” “Integrates well with the environment.” The new bridge features three spans and allows for better natural flushing to the sea and a healthier lagoon. Replacing the more than 70-year-old bridge cost more than $12 million. The new bridge is a haunched, threespan, cast-in-place box girder which is nearly 70-ft. wide. The width allows two traffic lanes, shoulders, a median and a sidewalk on one side. North Torrey Pines Road Bridge, San Diego The bridge was designed in two phases to allow vehicular and pedestrian traffic to continue throughout construction. The bridge serves as a major traffic artery in San Diego County, with 20,000 vehicles traveling it each day. The new bridge was also designed to make it standout as an architecturallysignificant landmark. Pedestrians who pass below the bridge notice that it forms a Gothic arch shape. A hand-rail- ing was also created along the sidewalk portion of the bridge. The bridge was designed by Safdie Rabines and FCI Constructors built the bridge with T.Y. Lin International serving as engineer. Builders faced numerous difficulties when building the bridge, including building over water and during rainy weather. Measures such as sheet pile 61 California Construction 12/2006 Project Team Transportation Winner Owner City of San Diego Architect Safdie Rabines, San Diego General Contractor FCI Constructors, Vista Engineer T.Y. Lin International, San Diego Geotechnical Consultant AMEC Earth and Environmental, Inc., San Diego Roadway Approaches Consultant Earth Teach, Inc., San Diego Traffic Control Consultant Lintvedt, McColl & Associates, San Diego retaining walls were used to protect the bridge falsework during construction from wave and tidal forces. Temporary sheet pile retaining walls allowed most of the bridge to be constructed in the dry. The marine environment also necessitated some unusual design measures. All bar reinforcement was epoxy coated to extend the life of the structure. Concrete was densified by using high proportions of fly ash which will reduce chloride penetration into the concrete. Anodized aluminum finish on the railings was specified as marine grade.
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