Casa Adelante Affordable Housing Tops Out

The 130-unit Casa Adelante development at 681 Florida Street topped out in San Francisco this month with general contractors Cahill / Guzman, JV. The ten level above grade structure is located in the Mission District and dedicated entirely to affordable housing. The Mission Economic Development Agency worked hard to ensure the property remained affordable and even earmarked 30% of the units for the formerly homeless. Mithun architects and Structus, Inc. structural engineers hope to have the building complete during the spring of 2022.

Concrete construction began in January with the placing of a 3,510CY. Two truck mounted boom pumps placed an average of 350CY/Hour for 10 Hours. Concrete Support Systems’ three piece decking system was used for the 14,638sf. The building façade features exposed concrete columns and upturn beams at levels two, five, eight and at the roof with horizontal reveals. Teams accomplished these architectural elements using the shotcrete method of construction. Over the course of eight months Largo will have placed 11,0000CY.

Steven Creek Office Podium Tops Out

Largo completed the podium level at the Stevens Creek Office Building this month. The 308,491gsf project is located south of Interstate-280 and north of Stevens Creek Blvd. in Santa Clara, CA. The seven level football-shaped building rises from a triangular parking podium wedged between the two main thoroughfares. The two levels of below grade parking holds 290 stalls with the 108,130sf of steel framed commercial space above it. Largo is working with general contractor Vance Brown Builders, Kenneth Rodruiguez & Partners, Inc. architects and Miyamoto International, Inc. structural engineers to have the building complete during the spring of 2022.

Shotcrete was used to place the 32,204sf of perimeter basement walls and a XXX shoring system was used to form the elevated decks. The last metal deck is schedule to be poured on XXX and Largo will have poured a total of 15,500CY over the course of 10 months.

Blue Sky Phase 1 Topping Out

The first phase of the mid-rise commercial development at the Warner Bros’ studio tops out in Burbank next week. Designed by the world renowned architect Frank Gehry, the eight level structure sits atop a four level below grade parking podium. In true Gehry fashion the structure has exposed columns poured out of plumb and a boxy, glass and metal facade exterior.

The concrete scope will take just over 15 months to place 65,000 cubic yards. With over 940,000 sq. ft. of elevated deck, crews were pouring a deck every two days during peak production. Largo is working with general contractor Krismar and structural engineer Englekirk Phase 2 is expected to top out in February of 2022.

The Loren Tops Out

The Loren at Lady Bird Lake topped out this month in Austin, TX with general contractor Hoar Construction. Located on the south end of the Lamar Blvd. Bridge the building features panoramic views of the lake and the downtown skyline. Two levels of below grade parking with 148 stalls and nine levels above grade make up the 290,339gsf cast-in-place building. The development has both a residential and hospitality component with 24 apartment style units and 108 hotel rooms under one roof. Residents and guests share the same amenities including a 24-hour concierge service, gym, spa and rooftop pool on level eight.

The design called for spread footing foundations and A-Frame shoring by Peri Formwork was used for the cast-in-place basement walls. Typical levels are 10ft 6in floor-to-floor with the penthouse and roof decks standing 13ft 6in and 14ft respectively. Typical deck pours averaged 12,500 and were poured every 6 days. Over the course of nine months Largo will have poured 15,119 Cubic Yards of concrete. Designed by architects Rhode Partners, Inc. and Viewtech, Inc. structural engineers, the development is scheduled to be open during the Spring of 2022.

5,450CY Foundation Pour at Courthouse Commons

At 5AM on May 22, Cemex and Associated readymix trucks began delivering loads to the Courthouse Commons jobsite in downtown San Diego. The site is caddy-corner from the Central Courthouse between W. Boardway and W. C Street. Once on site, five truck mounted boom pumps moved the readymix 50 ft. below street level to the foundation. Pumps ranged in size from 46 meters to 61 meters and were lined up along Union and Front Streets. The deepest part of the foundation was 14.5 ft. deep at the elevator pits. Pumping at a peak of 600CY/hour, the pour lasted 11 hours with the last finisher going home around 8PM. In total 5,450 cubic yards were placed by a 30-man placing crew, 20 finishers, 10 pump operators and a support group of 40 individuals.

Looking ahead, the next major milestone will be the placement of another mat foundation of 6,650CY on July 5. If all goes according to plan general contractor Holland Partners expects concrete to top out in April 2023. The project is designed by Carrier Johnson architects and Bryson Markulim Zickmantel structural engineers. The building is 44 total levels including five levels of below grade parking and the roof deck. Commercial retail space is located on street level with the following seven levels dedicated to office space. The next 28 levels will hold 431 residential units, 87 of which are subsidized for low income renters. Once completed the Courthouse Commons will be among the top five tallest buildings in San Diego.

Fauxtalian Development Ferrante set to Top Out in Los Angeles

Along the Harbor freeway between Temple and Beadry, the 10-acre Ferrante development is scheduled to top out early next month. The 1,500 unit residential complex is the latest endeavor by mega-developer Geoff Palmer who is known for buildings designed with Italian Renaissance architecture. The building features 30,000sf of commercial space at street level and 187,000sf of amenities including gyms, pools, tennis and basketball courts, open courtyards and even a karaoke room. With over 1million sq. ft. of elevated deck this three level parking podium was broken into three phases with the first phase on the north side scheduled to open during the Summer of 2021.

On average Largo poured a 16,000sf elevated deck twice a week over the course of 20 months. A shoring and tables forming system was used for the decks and a combination of three placing booms and a 58m truck mounted boom pump were used to place the readymix. In total Largo will have placed 76,000 CY will have been placed onsite. Developer and general contractor GH Palmer, Oakes Architects and VCA Structural Engineers plan to have all three phases complete by the end of the year.

Autography Collection / Residence Inn Set to Top Out in Oakland

The Autograph Collection / Residence Inn dual brand hospitality tower by Marriott tops out next month in Oakland, CA. The project is located along Jefferson between 14th and 15th St. in the Uptown District surrounded by restaurants, entertainment and nightlife. With a total of 275 guest rooms the 207,000gsf structure is spread across one level below grade and 19 levels above including the roof deck. The Residence Inn rooms occupy levels 3 to 11 with Autograph Collection units on the upper floors.

A mat foundation pour kicked off the concrete scope with a total of with a total of 1107.5CY. The pour began at 3 AM and the last finisher went home at 9 PM. 115 readymix truck loads were pumped through three truck mounted boom pumps averaging 109 CY per hour. Decks were formed with a Titan system and the concrete support self-climbing system was used to form the core. Typical deck pours averaged 1200sf and were pumped using a 30m placing boom.

The project was designed by Stanton Architecture and KPFF structural engineers. General contractor Millie & Severson, Inc. aims to have the building open for business during the Fall of 2021.

Speed Ramp Construction at Mt. San Antonio College Parking Structure

After topping out on the four levels of parking decks, Largo is currently working on the external speed ramps of the Mt. San Antonio College Parking Structure. The 818 stall structure is located in Walnut, CA on the southwest corner of West Temple and Bonita Drive. The external speed ramp configuration is used to efficiently usher vehicles in and out of the structure in large quantities and enhance pedestrian safety by reducing traffic on the parking levels.

Teams used a Gradall to hoist steel frames, deck tables and Cunningham beam into place to form the ramp. Beams were assembled with a combination of 10ft and 6ft sections to accommodate the 28ft span between columns and the four 24in x 36in downturn beams were handset. 16ft long, 2in diameter tube bracing was clamped to the steel frames to secure them in place.

Another feature used to enhance pedestrian safety is the 11ft-2in cantilevered walkway on the north side of level three. This pedestrian footpath will eventually connect to a bridge which spans West Temple Ave. allowing users quick access to the main campus without having to cross the street at the intersection. The 24ft high walkway will reduce pedestrian traffic in and around the structure by allowing patrons safe passage to their vehicles.

General contractor Tilden Coil, executive architect HPI and parking architect and structural engineer Walker Consultants expect to have the structure complete during the summer of 2021.

Texas Capitol Mall Underground Parking Structure

Largo is currently working on the six level underground parking structure at the Texas State Capitol Complex in Austin. The 760,000gsf parking building is part of a massive overhaul of the Capitol Complex which aims at centralizing state agencies by providing grand civic spaces, an enhanced pedestrian experience, and connections to the surrounding community. The 984ft long building stretches three blocks from E Martin Luthor King Blvd. to 16th Street and will have a tree-lined pedestrian promenade on the top level. This first of three phases also includes two new office buildings whose underground parking levels tie into the Capitol Mall structure for a combined 4,400 stalls.

Largo is using Peri A frame 1 sided walls, Domino and Duo 2 sided walls and Bond 3 piece 8’ deck framing and pouring a 15,000SF deck every 3 days .  Four free standing placing booms are used to place concrete considering the tight logistics and access and three tower cranes are being used to move material around site with the largest capable of picking 19,000lbs. General contractor White Construction, Kirksey Architecture and Ensight Haynes Whaley structural engineer aim to have the 2,261 stall structure complete during the summer of 2021.

Landmark II Tops Out in West Los Angeles

The Landmark II residential tower topped out this month along Wilshire Blvd. with general contractor Matt Construction. Looking south from Wilshire Blvd. the new building stands behind the Landmark II commercial office building between Granville and Stoner Avenues. The 35 level above grade structure holds 376 units with four levels of below grade parking for 421 cars.

The parking levels tie into an existing structure which had to remain operational throughout construction. Underpinning, or the process of strengthening the foundations of an existing structure, was part of seismic retrofit of the parking levels which was necessary to re-route traffic and create temporary access. Demolition of existing beams to connect the two parking structures included the de-tensioning of PT cables, and the installation of micropiles and an internally braced raker system.

The walls of the two cores are the primary lateral resisting system which were formed with EFCO Plate Girders to maximize the tie spacing. The elevator core formwork is supported by a self-climbing Power Tower PT-100 system. For the elevated decks Largo chose to use PERI perimeter tables with titan shoring for the handset portion of the decks. Gensler and Saiful Bouquet are the architect and structural engineer for the project which is scheduled to open during the Fall of 2021.