DIAGONALCROSSINGDIAGONALCROSSING_PA25710
BOULDER, CO - JANUARY, 30 2019
Luis Castrejon, right, puts down a radon barrier at the Trammell Crow Residential Diagonal Crossing development site in Boulder on Wednesday morning January 30, 2019.
(Photo by Paul Aiken/Staff Photographer)
DIAGONALCROSSINGDIAGONALCROSSINGPA25710