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Projects

Smithsonian National Museum of African American History & Culture

Clark Construction/W.R. Grace

Project Details

Location:   

1400 Constitution Ave., NW Washington DC

Scope:   

Urethane Injection

SGS provided urethan injection to stop water leaks in the walls, floors, and ceilings below grade throughout the museum.

Featured Projects

Explore our successful projects and see how we deliver innovative solutions and exceptional workmanship to address critical infrastructure issues.

Scope:

Concrete restoration and epoxy injections

935 Pennsylvania Avenue NW, Washington DC

SGS, in conjunction with J.F. Brinker, performed partial and full-depth concrete repairs to the parking decks. The scope included saw cutting large areas of the slabs, installing shoring and formwork, installing new rebar, and pouring the slab areas back. Additionally, epoxy injections were performed into cracks within the structure.

J. Edgar Hoover FBI Building

(GSA) General Services Administration

Scope:

Concrete restoration, concrete strengthening (FRP – Fiber Reinforced Plastic), fireproofing

6401 Security Boulevard, Baltimore, Maryland

SGS worked as a subcontractor for Hensel Phelps to perform interior and exterior restoration work at the historic 10-story Arthur J. Altmeyer Building on the Social Security Administration campus in Woodlawn, Maryland. The work included interior and exterior concrete rehabilitation, concrete strengthening with FRP, and fireproofing.

Arthur J. Altmeyer Building Renovation

Hensel Phelps