A $500,000 grant from Connecticut’s Good to Great Grant Program will help improve accessibility by adding a walkway at the Aldrich Art Museum in Ridgefield. The money will lead to what is being referred to as “significant renovation” of the museum’s exterior campus. Work is expected to get underway this fall. The new handicapped accessible walkway will run down the perimeter of the 3-acre property and around the backfield, where there has been a sculpture garden since the museum opened in 1964.