According to an e-mail sent by the Takoma Public Art/Mural Committee, the three-dimensional piece by artist Sam Gilliam that is to be installed in the Takoma Metro underpass is well on the way to completion, with installation planned for May 2011. This project is being done as part of WMATA's Art in Transit program.
Another interesting, sort-of-transit-related public art project coming to Takoma at around the same time is reCycle:
reCYCLE is a public art exhibit designed to highlight the art, bicycling and recycling cultures of Old Takoma ( Takoma, DC through Takoma Park, MD) by installing interactive and kinetic sculptures, created by area artists using recycled bicycles and spare parts, on the sidewalks of Old Takoma. Approximately 10 sculptures will be commissioned, created and strategically installed in Old Takoma to create a self-guided walking exhibit through the city center.
I was hoping the sculptures would double as bike racks, as they're sorely needed in some parts of Takoma (like the stretch of sidewalk in front of My Little Bistro and Cedar Crossing), but that's apparently not within the scope of this project.