Conco’s regional office in Washington completed a 2,880 cubic yard mat pour on April 7th at The Martin–a 24-story luxury apartment tower located in Seattle’s Belltown neighborhood–for general contractor Exxel Pacific.
Located downtown adjacent to Seattle’s Monorail, access and time constraints were a concern. Three pumps–36 meter, 47 meter & 58meter–were used to complete the mat pour, together pumping 450 cubic yards per hour at peak times. Cadman, Inc. delivered the ready-mix with trucks arriving approximately every 80 seconds to fill the mat which measures 7′-6″ at the deepest point.
With 2,880 cubic yards and 275 tons of rebar, The Martin stands as affirmation of Conco’s abilities and reputation.
Concrete package for the San Francisco 49ers stadium
49ers Stadium
A joint venture between Turner Construction and Devcon Construction has awarded the concrete package to Conco for the $1.2 billion San Francisco 49ers stadium. Designed by architect HNTB, the stadium is scheduled to open in time for the 2014 NFL season.
The project consists of slabs in excess of 2,000,000 square feet and will use more than 65,000 cubic yards of concrete. In order to meet the demands of the ambitious timeline for completion of the foundation, Conco will be working in four separate areas simultaneously. The same approach will be taken for the many deck pours that will need to be completed.
Conco brings to the project its vast experience in public arenas. Among its portfolio of projects include all the cast in place concrete for the San Francisco Giants ballpark (AT & T Park), the foundation package for the HP Pavilion (Shark Tank), all cast in place concrete for the LA Live complex, and ancillary structures for the Seattle Seahawks Stadium.
Visit the Construction Camera page for a live view of the construction.
Conco Pumps 5,700 cubic yards for Downtown San Francisco Mat Pour
On March 3 & 4, 2012, Conco successfully pumped 5,700 yards of concrete for the 1401 Market Street Project in Downtown San Francisco. Located on the edge of the Civic Center and Financial District, this project comprises a 35-story tower along with buildings of 9, 12, and 19 stories. The project will contain 720 residential units along with ground level retail and two levels of above ground parking.
The concrete was supplied for the project’s first mat foundation pour. Jobsite mandates required the concrete pour to begin after sunset on Saturday evening and finish Sunday morning. Gary Brandt, Vice President of Marketing with Conco, worked with the owner, the general contractor, the concrete contractor and the ready-mix supplier to develop a game plan and secure the necessary permits needed to pull off this logistical challenge.
Conco provided three 58-meter Schwing pumps, one 52 meter Schwing, one 47 meter Putzmeister and a 36 meter Schwing. The limited jobsite access required a pump positioned down in the hole to be supplied by one of the 58 meter pumps. Throughout the pour, concrete was being pumped and placed at the rate of 600 yards per hour allowing the pour to be finished in 10 hours. The pour was completed without any lost loads, injuries or complaints from the general public making it a success for all parties involved.
Turnkey concrete package for Los Angeles Hall of Justice
L.A. Hall of Justice
The Los Angeles Hall of Justice has been closed since the magnitude 6.7 1994 Northridge earthquake. The 335,000 sq. ft. building stands 14 floors tall in L.A.’s downtown. Originally constructed in 1925, this imposing structure was meant to convey a sense of justice and public importance. The Hall was designed in the classic Italianate style and was constructed with Type I non-combustible building materials including concrete floor slabs, a steel frame structure encased in concrete, granite exterior veneer, and hollow clay tile partitions at the interior. The Hall of Justice also presented a stunning interior with an ornate, barrel-vaulted entry foyer, gold-marble walls, and large ionic columns supporting the exquisitely gilded ceiling.
Although the building was completely abandoned following the earthquake, plans to revive it have been under consideration more than a decade. To date, all hazardous materials have been abated and all interior demolition of infrastructure systems and non-bearing walls have been completed. The building has been prepared for its eventual restoration and re-occupancy as an office building. After many years of designs and budgets, Clark Construction was awarded the job in a design build competition valued at $151,000,000.00.
A key part of the reconstruction is to preserve and restore the historic features of this important structure while bringing the building up to existing seismic codes. In order to accomplish this, shotcrete will be used extensively to reinforce existing concrete walls.
Conco’s scope of work will included all shotcrete, concrete, and rebar. We are also resurfacing the entire existing floor surfaces in the Hall of Justice structure and constructing a new 9 story, 1000 car parking structure on the same site.
