Colorado Department of Transportation employees had to paint over a “massive” graffiti call for impeachment on the side of Interstate 25’s northbound Speer Boulevard off-ramp on Thursday, CDOT spokeswoman Stacia Sellers said.

The work led to partial closure of the ramp, she said.

The words “Impeach Resist,” were scrawled in 20-foot high letters that ran about 100 yards across a concrete retaining wall.

“‘It’s one of those that you wonder, ‘How did you get up there to do that?'” Sellers said.

CDOT crews routinely clean graffiti from roads, Sellers said. The agency spends an average of $200 each day for the paint, staffing and equipment needed for the task.

Fifteen to 20 gallons of paint are used on average each day but some larger acts of vandalism can require 50 gallons of paint.

Crews assigned to do the job sometimes find the scrawl under or near bridges and overpasses where the homeless live.

In those cases, CDOT maintenance crews are sometimes also required to clean the surrounding area of drug paraphernalia and human feces, she said.