General Service Building Retaining Wall at the Smithsonian National Zoo

Washington DC

EverGreene decorative artisans painted the General Service Building Retaining Wall at the National Zoo Park. Our artists used Keim paint to transform the cast concrete; making it appear like the stone walls in nearby Rock Creek Park.  Decorative painters carefully blended colors to create a custom, hyper-realistic stone façade for the 900-foot-long retaining wall. After applying the base coat, five different colors and a multitude of painting techniques, including glazing and stippling, were implemented to mimic the appearance of real stone.  To finish the project, artisans sealed the formwork with Keim Concretal dilution and Keim Lazur. The project was honored with an award by the Washington Building Congress in March, 2015.

Quinn Evans Architects
Hensel Phelps Construction
Smith-Midland Corporation  
National Zoo Retaining Wall

The completed retaining wall at the Smithsonian National Zoo

Smithsonian National Zoo

The retaining wall in its earliest stages

Smithsonian National Zoo

Cast concrete installed on the wall facade

Smithsonian National Zoo

Five different colors and a number of different painting techniques were implemented in achieving the natural rock finish

Smithsonian National Zoo

An EverGreene decorative artist applying Keim mineral paint to the cast concrete wall

Smithsonian National Zoo

The completed retaining wall at the Smithsonian National Zoo