Crews working for the Transportation Department are wrapping up the largest project yet in the city’s effort to make curbs and sidewalks easier to navigate for people with disabilities.

A total of 211 new curb ramps have been installed along streets and sidewalks throughout Bellevue. All comply with the federal Americans with Disabilities Act, which took effect in 1992.

Begun in October 2007, the latest ramp work is part of Bellevue’s annual overlay program to repave streets before they deteriorate and require far more costly replacement. The overall cost of the curb ramp project, by the Dennis R. Craig Construction company, is approximately $2 million.

In most cases, the existing ramp, adjacent sidewalk, curb and gutter were removed and replaced with new ramps that are wider and more gently sloped. They also have raised yellow bumps, which make them more convenient for people who are blind.

Since 2005, a total of more than 500 new curb ramps have been installed that comply with ADA requirements. A study is underway to determine how many more ramps need to be replaced.