The Conco Companies recently completed all structural concrete renovations for the LA Memorial Coliseum Renovation Project. Conco’s services included finishing, formwork,pumping, and shotcrete.
The Los Angeles Memorial Coliseum underwent the largest renovation in its 100-year history. Newly named, United Airlines Field at the Los Angeles Memorial Coliseum, the $315 million makeover will host the University of Southern California (USC) Trojans, LA Rams football teams and prepare for the 2028 Olympic Games in Los Angeles.
The Conco Companies placed approximately 24,000 cubic yards of concrete, including mat foundations, slab over metal decks,structural decks, shotcrete and new concrete seating in a large portion of the stadium bowl.
The whole north and south concrete seating bowl was replaced in order to add wider seats, more legroom, and extra aisles. Additionally, an eight-story structure was built to house new press boxes and luxury suites. A specially designed concrete mix was poured to protect reinforcing. This was necessary due to the concrete exposure to the environment. Concrete Admixtures were used for corrosion inhibitors and waterproofing.
Like every high-profile project, theLos Angeles Memorial Coliseumpresented its own challenges. Conco’s planning and execution skills were tested by some of these challenges, such as:
Swiftly installing high quality, unique formwork systems with tight radius and slope seating.
Rigorous schedules to perform the work without impacting the 2018-2019 football season of both USC Trojans and LA Rams.
The Conco Companies was selected based on our vast stadium experience and multiple concrete services. Conco successfully completed the job on schedule and meeting the client’s expectations.
Conco is one of the foremost suppliers of concrete services for the Western U.S. We got our start in 1959 in the Bay Area by offering clients the best value on a broad range of concrete services and products. Since that time, we have taken a leading role as top concrete contractors in the region. We have regional offices serving California, Oregon, Nevada, Colorado and Washington.
The Conco Companies topped off the new mid-rise Epic Tower in February 2019. Conco provided all cast-in-place concrete services, including finishing, formwork, pumping and shotcrete.
Developed by Hudson Pacific Properties and designed Gensler Architects and Nabih Yousef and Associates, the project, under Hathaway Dinwiddie features a 14-story tower with 300,000 square feet of office space, 18,400 square feet of new retail space, and 5 levels of structured parking. The $150 million-dollar development will be an expansion to the Sunset Bronson Studios Complex directly across the street.
The unique building includes terraces at every level with modern appearance landscapes, providing a seamless transition to outside workspaces through tall glass walls that overlook the city of Los Angeles. Office space features new 15-foot lower profile ceilings with open floorplans.
The project started in December 2017 and presented logistic challenges due to its location, high volume of traffic, and limited site access. Epic Tower took nearly 43,000 cubic yards (cy) of concrete to be completed. A total of 11,000 cy was poured on footings and 12-foot mat slabs surrounding the concrete core. The methods used to place mass concrete had to be taken into consideration with thermal control plans. Vertical elements on the structure such as columns and the concrete core tower required a 7,000 PSI and a high modulus of elasticity (MOE).
To overcome these challenges, Catalina Pacific provided a mix design using Orca rock and provided a mix that would reach nearly 9,000 PSI at 56 days. The concrete decks which comprised 50% of the overall yardage of the project, also had high requirements on MOE and Orca rock with a 6,000 PSI requirement. Additional challenges included a 10-foot cantilever deck, which was completed successfully by our formwork team.
Conco was selected for this project because of our experience and commitment to high-quality planning and execution on complex projects.
Conco is one of the foremost suppliers of concrete services for the Western U.S. We got our start in 1959 in the Bay Area by offering clients the best value on a broad range of concrete services and products. Since that time, we have taken a leading role as top concrete contractors in the region. We have regional offices serving California, Oregon, Nevada, Colorado and Washington.
The concrete scope of Esterra Park Block 3 is slated for completion June 2020.
The Conco Companies is providing concrete services for Esterra Park Block 3. Conco services include concrete finishing, pumping, reinforcement, formwork, construction trucking, and shotcrete. The concrete pour for Block 3 began in June 2019 and is expected to be completed June 2020.
Located in Redmond, Washington, The Esterra project is a 30-acre master planned community adjacent to Overlake Light Rail Station and the Microsoft Campus. It’s built on an open-space concept, where occupants can live, work, and socialize year-round. The project will expand roughly 235,000 square feet of additional office space.
The Conco Companies is meeting the challenges of implementing a structure that is designed to maximize lower level parking. We are pouring concrete for three lower levels of parking with seven levels of office space above. Conco recently finished work on adjacent Blocks 5 and 6A. In addition, we are part of the construction team on an upcoming project for Blocks 2A/2B.
The Esterra Park Block 3 project represents a segment of a large-scale plan to develop the area, which will be known as Overlake Village Station.
Conco’s mission is to be the best supplier of commercial concrete services in the Western United States and to bring experience, expertise and quality to each project. We continue to upgrade and expand facilities to better serve the growing market for public works projects, commercial, educational, parking structures, and other construction development. Please contact us to learn more about our high-performance, precision-engineered fabricated rebar in the Seattle area.
Saturday, August 24th was not your typical day for Conco. While many projects are shutdown for the weekend, this Saturday was one of the busiest Saturdays in Conco’s 60-year history.
The activity began Friday evening in Southern California. Starting at 9:30 PM, Conco began to pump, place, and finish 10,400 cubic yards in downtown Los Angeles on a project known as The Grand. The Grand is a mixed-use project with retail, residential and a hotel across the street from the Disney Concert Hall. The developers for The Grand are The Related Cos. and CORE USA for this Frank Gehry designed structure.
The Grand Concrete Pour
The Grand 10,400 concrete pour was the second of three foundation pours for the structure. Eight concrete pumps were positioned around the foundation to receive concrete at the scheduled delivery rate of 750 cubic yards per hour. In order to supply concrete at this rate, Calportland, with the assistance of Associated Concrete, utilized five batch plants and over 120 concrete mixer trucks.
In addition to the work performed on The Grand, Conco had another large concrete pour on this day in downtown Oakland, CA. Working for the Holland Partner Group, the project located at 24th & Harrison, site of the old Acura dealership, will comprise of luxury apartments with retail and other amenities.
Before placing the concrete, Conco was responsible for fabricating and installing all the rebar. Comprised of mainly #11 bar, more than 4.1 million pounds were needed for the entire mat foundation.
24th & Harrison Concrete Pour
The 24th & Harrison project by the Holland Group was the second of two foundation pours at the site, requiring 7,300 cubic yards of concrete supplied by Central Concrete out of five concrete batch plants. Prior to pouring the concrete, Conco provided the fabricated rebar and installation. The challenging site necessitated that six concrete pumps (five were active at any given time) be used with a scheduled delivery rate of 600 cubic yards per hour being delivered by 120 concrete mixer trucks. The concrete pour began at 1:00 AM.
950 Market Street Concrete Pour
Furthermore, in addition to the Los Angeles and Oakland pours, a mat foundation pour also took place simultaneously in San Francisco, CA. The project at 950 Market Street will be a mixed-use development consisting of housing, a hotel, retail, and a dedicated non-profit space. This project is being developed by Group i, a San Francisco-based real estate development company. Working for the general contractor, Pankow Builders, Conco also fabricated and installed the rebar for the foundation. More than 1.7 million pounds were needed to be put in place prior to concrete placement for the entire foundation.
The mat pour for the 950 Market Street project was the first of two for the site and was supplied by CEMEX out of three concrete plants. A total of 3,195 yards of concrete was pumped, placed and finished by Conco through three concrete pumps that were supplied at a scheduled rate of 300 cubic yards per hour.
For the activity in three separate markets to transpire, multiple internal and external meetings were held to discuss every facet of activity associated with making each concrete pour a success. For Conco, success comes from developing the proper plan and executing that plan. Items such as safety, concrete mix designs, pump placement, street closures, individual company responsibilities, and contingencies are just a few of the details that must seamlessly be ironed out.
The resources that were used and vital statistics for Saturday, August 24, 2019 were:
The Grand
Los Angeles
24 & Harrison
Oakland
950 Market
San Francisco
Total
Concrete Placed
10,400
7,300
3,195
20,895
Concrete YPH Placed
750
600
300
1,650
Square Feet Finished
41,000
44,800
18,000
103,800
Mixer Trucks Used
120
140
60
220
With the combined effort of Conco, our customers and suppliers, all three projects finished on time with only 5 extra yards of concrete for all three projects combined. More importantly, all were completed without so much as a first aid claim.
Large mat foundation pours require extensive planning and collaboration with customers, suppliers, public agencies and various other third parties. Conco’s success is dependent on everyone doing their part and we at Conco are thankful to work with great customers and suppliers day in and day out, who give us the opportunity to succeed.
The Marriott Hotel is slated to open a new franchise, the Moxy Hotel in Portland, in the Pearl District in summer of 2020. Construction began in June 2019 on the new project and promises to bring a unique, contemporary take on the hotel experience to the lively neighborhood in downtown Portland. Several notable groups have come together to develop and execute the project, including development company Graves Hospitality, DLR Group Architecture, and Portland commercial concrete contractors The Conco Companies.
A Franchise for the Young and Young-at-Heart
As a new franchise from the well-known Marriott Hotel, the Moxy Hotel is looking to attract a new sector of hotel guests. The stylish interiors, contemporary designs, and vibrant urban locations are being offered at an affordable price for leisure travelers and business professionals alike. With the vision of immersing guests in the cityscape around them while providing smart, modern accommodations, the Moxy Hotel boasts several unique features. The 197 guest rooms will offer views of the city and Mt. Hood through floor-to-ceiling glass walls in their corridors, while the hotel’s public spaces will offer a range of sought-after amenities. The Moxy Hotel promises an open and engaging ground floor space that is designed to draw guests out into the surrounding city. The space will feature large operable glass walls, a full-service bar and lounge area, game rooms, and food carts. Additionally, the exterior is designed with deep canopies extending over the sidewalk for food cart goers to enjoy the offerings no matter the weather.
A Challenging Site for The Moxy Hotel
This exciting project is not only unique in its vision, but also in its dimensions. Situated on less than a quarter of a block, the 12-story hotel has a dainty building footprint. Benjamin Graves, the president and CEO of Graves Hospitality said of the project, “We’re creating an amazing addition to this neighborhood by defying the unthinkable and building 71,232 square feet of ground-up construction on an incredibly compact 7,500 square foot site.” In order to overcome this challenge of construction, the Conco Companies was brought on to provide an array of concrete services. Known for their ability to execute complex projects on time and on budget, Conco will provide concrete pumping, concrete reinforcement and rebar, concrete formwork, and shotcrete services for the Moxy Hotel.
The Conco Companies’ mission is to be the best supplier of concrete services in the Western U.S. and to bring expertise and incomparable quality to each project. We continue to upgrade and expand our facilities to better serve the growing market for commercial, educational, parking structures, public works projects, and other development. Contact us to learn more about the services from one of the most trusted concrete contractors in Portland.
