From the park association: It’s crunch time in Union Square Park as the North End Project reaches 83 percent and enters into the final stretch. New granite curb has been installed along Union Square East, and crews are hard at work paving the east side and 16th Street transverse. Next, they will install the playground’s south perimeter fence once paving is complete. To recap, at this time the landscaping is finished and the park’s new trees, shrubbery and perennials are taking root. Most of the plazas having been reopened to the public and the Greenmarket is fully operational on site in time for their busy fall season. Pavilion restoration continues, though hampered by graffiti removal that has proven challenging, and the new restroom facility on the east side of the project area is nearing completion.