The first such fort was built in what is now Central Park, and three other blockhouses numbered 2, 3, and 4 were erected within present-day Morningside Park. The blockhouses at Morningside Park were along the cliff and were numbered from north to south: No. 2 at 113th–114th Streets, No. 3 at 121st Street, and No. 4 at 123rd Street. These would not be used in battle and were left to deteriorate. Morningside Heights would remain sparsely developed for the next half-century except for the Bloomingdale Insane Asylum and the Leake and Watts Orphan Asylum. Design and construction Initial plans By 1866, the state legislature had given the Central Park commissioners the authority to construct streets on Manhattan's west side from 67th to 155th Streets. In 1867, lead Central Park commissioner Andrew Haswell Green proposed that a park be built in Morningside Heights to avoid the expense of expanding the Manhattan street grid across extremely steep terrain. Green enclosed a map by John J. Serrell that modified the Commissioners' Plan to this extent. The Central Park commissioners passed an act on March 26, 1868, allowing the acquisition of lands for parks. Under this act, the commissioners purchased , and seized another through eminent domain, at a total cost of US$1.33 million. In April 1870, the Central Park commission was dissolved and the City of New York obtained jurisdiction over the property. That September, Department of Public Parks (DPP) chief engineer Montgomery A. Kellogg was asked to create a plan for Morningside Park. Over the next year, the city would spend $5,500 to conduct surveys of the proposed parkland. Kellogg presented a design for the park in October 1871. The New York Times said that the park's name was apt for it would "[possess] a sunny exposure in the early morning hours," and described the planned park as having "handsome walks, flower-beds, jetting fountains, [and] a play-ground" among other things. The Times predicted that the planned Morningside Park "will doubtless be a favorite resort for children and invalids." Kellogg's plan was rejected by the Board of Commissioners for Public Parks. In April 1872, the DPP created a committee to discuss possible upgrades to the street to the park's west side, and Frederick Law Olmsted and Calvert Vaux, who had designed Central Park's Greensward Plan, were commissioned to produce a design for the park. In a September 1872 article, the Times predicted that