11th Street Bridge Project

The 11th Street Bridge Project is part of a group of three bridges separating local and freeway traffic to improve travel on both sides of the Anacostia River.  ETI provided petrographic examination, concrete core drilling, and Ground Penetrating Radar (GPR) services for the bridge structure.

ETI scanned the surface of the concrete deck with GPR and subsequently core drilled in six locations, to determine the effectiveness of the injected epoxy in existing cracks. The cracks in three of the cores were gravity filled with a low viscosity, moisture resistant epoxy resin used to heal and seal cracks.  Cracks in the other three cores were gravity filled with a high molecular weight methacrylate crack healer/penetrating sealer.  A petrographic examination was performed on the samples to determine microscopically, the width of the cracks as well as the depth and effectiveness of the epoxy penetration.

Park Van Ness

Replacing the old Pier 1 Import/Office Depot retail complex at 4455 Connecticut Avenue in Van Ness, this high-rise residential building includes 273 apartments (ranging from studios to three bedroom units) with a total of 11-stories: six above-grade residential levels and five below-grade residential levels along the rear of the property overlooking Rock Creek Park.  The project also includes 9,000 sf of restaurant and retail spaces on the ground level and 226 parking spaces in an underground garage.

The above grade residential tower is constructed of two-way post-tensioned flat plate concrete.  A below-grade parking structure consists of a poured-in place conventional concrete slab.  ETI served as the Special Inspections Engineer-of-Record for the project.  Our scope of services included various inspections of the earthwork/foundations, excavation support, structural concrete, architectural and structural precast concrete, masonry, structural steel, cold-formed metal framing, fireproofing, waterproofing, roofing, and building envelope.


Wisconsin Place

A large mixed-use residential, retail, and commercial project at the intersection of Wisconsin Avenue and Western Avenue. The project contains a 17-story, 433-unit residential tower (480,000 sf), a new community center, a full-size Whole Foods grocery store, a 10-story office building, a new Bloomingdale’s department store, and two separate street-level retail buildings—all underlain by three levels of underground parking for 1,800 cars.

The multi-story residential tower’s building frame is cast-in-place concrete with post-tensioned slabs and the two-story retail building, pavilion and community center are steel-framed. ETI provided all structural inspection and testing required in accordance with the Montgomery County Complex Structures Agreement.