Residential Archives | Page 5 of 5

Coming Out of the Ground in Seattle’s Theatre District

The Holland Partner Group has come out of the ground with a new 40-story apartment building adjacent to the historic Paramount Theatre. This project, with its close proximity to Rapid Ride Transit and Seattle’s retail core, positions itself in the middle of the vibrant downtown. Upon completion this project will consist of 325 apartments, 276 parking stalls, and a restaurant and retail at the ground floor to cater to the theatre clientele.

As part of the Holland Team, Conco is performing all of the cast-in-place concrete, rebar, formwork, shotcrete and concrete pumping for this signature property. The small footprint with minimal lay-down area and five-day form cycle present challenges that require constant communication and coordination with all trades on site. Conco will be utilizing a perimeter protection system and perimeter netting system to ensure the aggressive schedule is met without jeopardizing the workplace. As of August 1, Conco is on schedule having recently completed the 12th floor. Conco will top out the project January 22, 2014.

815 Pine is designed and constructed to achieve LEED Silver status. The project is scheduled to be completed in April, 2015.

Spotlight

New challenges arise for the concrete contractor due to the growing demand for in-fill projects such as Conco’s current Essex-Elkhorn Court Apartment Homes in San Mateo, CA. The City of San Mateo is part of the Bay Area plan drafted by the Association of Bay Area Governments and the Metropolitan Commission designed to find solutions to meet the growing housing needs of the Bay Area. An integral part of their plan is to locate housing near transportation corridors and jobs. The result of doing this would generate a reduction in greenhouse gas emissions due to a less automobile traffic.

Therefore, more projects being constructed are located next to existing commercial buildings and residential complexes. These in-fill projects pose challenges such as noise, site access, and impact on the surrounding neighborhood.

The Essex-Elkhorn Court Apartment Homes will consist of 197 apartment units and have 125,978 square feet of office space with below grade parking for all. The project is being constructed by Barry Swenson Builder.

The Essex-Elkhorn project is sandwiched adjacent to a hospital, day care center and residential housing. Because of this, special attention had to be taken to lessen the impact of performing the concrete work on the surrounding neighbors including scheduling large concrete pours on weekends during designated hours only and reducing the traffic around the site by limiting mixer truck traffic by pumping concrete from one pump to another. The attached clip shows a time lapsed video for accomplishing one of four mat pours scheduled for the project.

Type of Construction:

3” Thick Mud Slab w/ 2” Thick Protection Slab over waterproofing
30” Thick Below Grade Mat Foundation Slab
Two Levels of Below Grade Parking: 8” thick Post Tensioned slabs
Podium Level at Grade: 11” thick Post Tensioned slab
Exterior Basement Walls: Shotcrete applied against shoring walls.
Interior Walls: Shotcrete with Backform
Cast-in-place Columns
Total CY (including mud slabs & shotcrete): 15,500cy

Seattle Mat Pour at The Martin

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.

For more information on The Martin visit www.themartinseattle.com.

Click the gallery images below for a closer look.