Retail

Woodbury Park, 2220 Fairfax Drive

Two nine-story residential buildings with underground parking.  One building contains 108 rental units, and the other building has 99 condominium units.  There is a canopy structure between the two buildings at street-level, serving a common drop-off area.  Structured parking is provided for 303 cars in three underground levels.  Gross floor area of residential construction is 270,900 sf including lobby-level office, community and retail space.  Gross floor area of parking is approximately 121,500 sf.

SK&A provided structural design services as well as testing and inspection services for the condominium building. The superstructure for the building consists of conventionally reinforced, cast-in-place concrete, with masonry brick veneer.

Arundel Town Center

Located in Hanover, MD on the Baltimore-Washington Corridor, the Arundel Town Center is a component of the Arundel Preserve, a 268 acre, smart-growth mixed-use community within the larger 1,100 acre Arundel Mills development. Developed in multiple phases, the project includes a hotel, residential and retail structures.

The hotel phase of this project involved the construction of a seven-story above-grade, 150-room hotel building that included retail space at the ground floor level.  The building’s substructure and superstructure consist of cast-in-place concrete footings and walls with conventionally reinforced slabs and post-tensioned slabs in the tower.

The residential phase of the project involved the construction of a multi-family residential structure consisting of five to six levels, as well as three stories of retail space with an attached five level parking garage. The project also includes a clubhouse with a swimming pool in the courtyard.  The building’s substructure and superstructure consist of cast-in-place concrete footings and walls with Hambro system floor joist slabs and the precast concrete parking structure.

The parking garage phase of this project involved the construction of a seven-level above-grade cast-in-place concrete parking structure, consisting of footings, columns and walls with post-tensioned reinforced slabs.

SK&A provided structrual design services as well as testing and inspection services including concrete, masonry, and structural steel construction, EIFS observations, field testing, and visual weld inspections.

Constitution Square

Located at First and M Streets, NE, in the vibrant NoMa neighborhood, Constitution Square is a 3.1 million-square-foot, multi-phased, urban mixed-use complex featuring multiple office, residential, hotel, and retail buildings. SK&A was selected to provide structural engineering services for the Class “A”office buildings, Three Constitution Square (OB3) and Four Constitution Square (OB4), as well as Residential Building Two (RB2), a 13-story apartment building.  SK&A also provided special inspection services for construction of a 12-story office building (OB3) over a two-level parking garage.  The construction of the building is a conventionally reinforced slab in the substructure and post-tensioned reinforced slabs in the superstructure levels above. 

Special inspection services were also provided for construction of a 13-story residential building (RB2) over a three-level below grade parking garage.  The substructure of the building (mat foundation, foundation walls, slabs, and columns) consists of conventionally reinforced concrete and the superstructure consists of post-tensioned reinforced concrete slabs above grade.

Windmill Parc at Dulles Town Center

Located in the Dulles Town Center development, this new apartment community consists of five types of residential apartment buildings, totaling 433 one to three bedroom units.  The apartment buildings, 18 in total, is spread out over a 19.4-acre parcel located to the southeast of the Dulles Town Center shopping mall.  The phased construction of the structures includes four-story wood-framed buildings, two types of three-story, wood-framed carriage homes, and four one-story retail buildings.

The project’s construction also included retaining walls at the stormwater management pond.  SK&A provided structural engineering services and served as the Special Inspections Engineer-of-Record. 

 

Flats 8300, 8300 Wisconsin Avenue

SK&A provided structrual engineering services for the Flats 8300, a nine-story, 714,000 sf mixed use building with 359 residential units, a two-level Harris Teeter grocery store, and four levels of below grade parking.  Building amenities include a rooftop swimming pool with space for entertaining, a clubroom, a fireside lounge, a fitness center, and a business center.

SK&A's scope of services also included various inspections of the earthwork/foundations, structural concrete, masonry, structural steel, cold-formed metal framing, fireproofing, and waterproofing as well as post-installed anchor testing and inspection.  The project is slated for LEED Silver certification.

The Yards, Parcel L

SK&A provided structural engineering services for the design and construction of the new Thompson Hotel and Estate luxury apartment buildings.  The new buildings are located on parcel L of The Yards, a 42-acre mixed-use, waterfront redevelopment situated along the Anacostia River in Southeast, Washington, DC.

The buildings are designed with joint access between them and are constructed atop of  a shared, below-ground, two-level parking garage.  The project designs also included navigating around a large underground sewer line at the northern end of the site.

  • The Thompson: The upscale Thompson Hotel is part of the Hyatt hotel portfolio.  The 10-story building includes 38 luxury suites, a restaurant at street level, rooftop bar, fitness center and meeting/event space.  
  • The Estate: A luxury, high-rise apartment building with 285 residential units.  The building features ground floor retail and amenities such as, several community lounges (garden, media, work), rooftop swimming pool, indoor spa/whirlpools, fitness center, and pet spa.

Midtown Center/Fannie Mae HQ

SK&A provided structural engineering services for a new headquarters building for the Federal National Mortgage Association (FNMA), commonly known as Fannie Mae.  The new 875,000 sf Midtown Center office complex is comprised of two 14-story towers, East and West.  The structure features 45,000 sf of retail space, multiple three-story atria, three levels of below-grade parking, as well as a fitness center, rooftop terrace, and private alley.  The project also includes a 15,000 sf public courtyard surrounded by the buildings on three sides and is activated by ground floor retail.

A unique and distinct design feature within the complex are its three interconnecting “tunnel” bridges which span more than 110 feet across the site’s courtyard, connecting the east and west towers at levels 9 through 14.  The bridges feature interior walkways (inside of the bridges) and exterior walkways (on top of the bridges, open to the air).  The bridges were typically designed as “king-post” trusses utilizing heavy W36 section for top chord, eight-inch square tube steel section for bottom chord, and two (2) three-inch diameter high-strength tension rods by “Macalloy” as diagonal members connecting to an eight-inch square tube section vertical steel post, at the center of the bridge.

The three-story, below-grade parking deck uses conventionally reinforced concrete flat slab construction.  The courtyard slab and private alley above the top garage level is designed for landscape and fire truck loads.  The office level structural framing consists of eight-inch, post-tensioned concrete slab with eight-inch-thick drop panels over columns.  This efficient framing system allowed sufficient plenum space for the installation of MEP systems within the ceiling as well as the curtainwall anchors.  The project will pursue LEED Gold certification.  

View photos from a 2017 Site Visit.

The Liz | Whitman-Walker Health

SK&A provided structural engineering services for the redevelopment of the Whitman-Walker Health Clinic site into “The Liz”, a mixed-use development incorporating new residential, retail, and office spaces.  The project also entailed the renovation and repurposing of the clinic’s existing historic structures located at 1701 and 1711 14th Street, NW.

The preservation of the two historic buildings required significant underpinning and other below-grade modifications to the existing basements.  The new structures are seven stories above-grade with two new below-grade levels.  The residential areas occupy approximately 80,000 gsf (78 luxury apartments) and retail and office spaces are 80,000 gsf.   Retail tenants include Sephora, Bluestone Lane, Amazon and Parachute Home.  The office space houses Whitman-Walker’s new headquarters, encompassing their administrative, legal, public benefits and research departments, as well as offices for Fivesquares Development and the Goethe Institute, a German language school.

The development also includes a 2,800 sf cultural space for community events and art exhibitions focused on the LGBTQ community.  The remaining square footage (approximately 60,000 gsf) consist sof areas for parking, loading and other back-of-house functions.

The Yards, Parcel O

Situated in Washington, DC’s Capitol Riverfront neighborhood, The Yards is a 42-acre, 5.5 million sf mixed-use redevelopment featuring residential, office, and retail spaces as well as restaurants and a public park.  SK&A provided structural engineering services for two residential buildings being constructed simultaneously on Parcel O of the development.

The Bower, on Parcel O-1, is a 154,400 gsf, 10-story residential building with 138 condominium units.  Parcel O-2 is a 208,700 gsf, 10-story residential building with 198 units.  Both buildings feature ground floor retail, indoor amenity spaces, lobbies, green roofs, a public courtyard, and a shared two-level, underground parking garage with a flood-resistant design.

The buildings are being constructed over WMATA’s Green Line tunnels, which required that structural analyses be performed to demonstrate the tunnels’ capacity and stability to resist the forces imposed by the unloaded condition during construction and the final condition when the buildings are complete.  

The Watergate Complex Plaza Repairs

The Watergate Complex in Washington, DC includes a hotel, office building, condominiums, and retail.  SK&A’s Repair & Restoration Division provided repairs to the office building’s B-2 level retail plaza area and B-3 level parking garage directly beneath the plaza.  The B-2 level retail plaza area is leased by Penzance and the B-3 level below is owned by Watergate East, Inc. and consists of residential parking, tenant storage rooms, various hallways, and mechanical rooms.

The original waterproofing on the structural slab located below the exterior plaza topping slab is a continuous coal tar fluid-applied waterproofing system, which at the time of the repair was approximately 43 years in age.  Over the years, the original waterproofing has been exposed in isolated areas throughout the plaza, and removed and replaced with either sheet membranes or hot fluid-applied rubberized asphalt systems.

In 2012, SK&A provided construction documents and specifications related to the concrete repairs and waterproofing design for the B-2 level retail plaza and B-3 level garage.  The work was performed from December 2012 to May of 2013 and consisted of the removal and replacement of the exposed aggregate topping slab located throughout the B-2 level plaza within the retail mall area.  Once the topping was removed, the existing waterproofing was removed and replaced and concrete repairs were also performed to the underlying waffle slab.  An existing two to four inch thick decorative concrete topping was replaced in the center of the plaza with a new black, gray, and white alternating colored Miracote coating.  New waterproofing details were provided at drains and along the plaza perimeter in order to provide tie-ins and terminations, as well as to aide in drainage of the plaza.  The repairs involved daily coordination between the contractor and management in order to complete the work and maintain daily access to each individual retail store impacted by the work.
 

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