As of late 2005, much of the new residential development in Hamilton has been geared to accommodating the aging baby boomer generation. New retirement communities and assisted-living facilities outpace that of new traditional residential communities. Such construction has been spurred by several factors. The first being that the public is skeptical of growing school budgets due to its already large size. Hamilton voters have often rejected increases in school budgets in their yearly elections to keep already high taxes from growing higher. As a result, the planning board has been reluctant to authorize construction of housing that will increase the student population. Another reason is a series of improvements to Robert Wood Johnson University Hospital, Hamilton. The hospital is now a highly respected source of care in the state. It is situated next to where most of the under-developed land in the township used to be, land that is now home to the active older-adult communities. As of October 2016, significant construction has been done to further build up the Hamilton Township area. Multiple new retirement communities have been constructed, as well as multiple new restaurants, banks, gas stations and convenience stores along Route 33. Hamilton Township continues to expand rapidly to accommodate the increase in citizens residing in the community. Hamilton hosts one of the largest recreational parks in the state, and borders another. The municipal Veterans Park is and is housed entirely in the township. Mercer County Park borders the township to the North and encompasses of land that was shared from Hamilton Township along with neighboring Lawrence Township and West Windsor Township. The park contains Mercer Lake, one of the largest man-made lakes in the state, which was built as a result of a federal flood control project to prevent flooding in Trenton along Assunpink Creek, with gravel removed to deepen the lake basin used as part of the construction of Interstates 95 and 195. The Grounds for Sculpture is a sculpture park which houses more than 270 sculptures, gardens, water features, and other nature scenes. The organization's mission is to promote the appreciation of arts and sculpture. Sayen Park Botanical Garden is named after Fredrick Sayen because it was originally his land and his home. George Washington used Quakerbridge Road on his famous night march from the Second Battle of Trenton on his way to the Battle of Princeton. Hamilton Township has been governed under the Faulkner Act Mayor-Council system of New Jersey municipal government since January 1, 1976, based on the recommendations of a Charter Study Commission. The township is one of 71 municipalities statewide governed under the Mayor-Council form. The township's government consists of a mayor and a five-member township council, with all elected representatives serving four-year terms of office.