{"nrhp_refnum":"04000347","name":"Stone Spillway, National Defense Stockpile Center","other_names":[],"category":"structure","location":{"address":"N of Gilmore Ave.","address_restricted":false,"city":"Hilcrest","county":"Broome County","state":"NY","lat":42.15504356100007,"lon":-75.87575749299998,"geom_source":"nps_gis"},"listed_date":"2004-04-20","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Engineering","Social History"],"significance_levels":["local"],"summary":{"what_it_is":"A stone spillway built in 1944 on the campus of the Defense National Stockpile Center in the hamlet of Hillcrest, town of Fenton, just north of Binghamton, Broome County, New York. It is a U-shaped wall of dressed fieldstone and concrete mortar.","why_significant":"The nomination argues the spillway is a well-preserved example of CCC-style stone construction from World War II, standing out among the depot's utilitarian wood and concrete block buildings. It is also believed to have been built by conscientious objectors in the Civilian Public Service program, the only such resource identified in New York State to date. The builder attribution rests on recollections of long-time depot employees.","narrative":"Built in 1944 at the foot of a wooded hillside in Hillcrest, north of Binghamton, this stone spillway carries runoff from an intermittent stream into a ditch along East Avenue. It forms a U-shaped wall of hand-dressed fieldstone and concrete mortar, with a twenty-two-foot center section, angled end sections, stepped wings, and five tapered piers that suggest battlements. At its highest it reaches nineteen feet. It was the last World War II structure added to the military depot, which otherwise relied on wood and concrete block because of material shortages. Its crafted stonework resembles Civilian Conservation Corps work in regional state parks. Long-time depot employees recalled that conscientious objectors in the Civilian Public Service program built it, though records do not name the builders. It is the only resource tied to that program identified in New York State. The structure remains highly intact and in excellent condition.","period_of_significance":"1944","architect_builder":null,"architectural_style":null,"criteria":["A"],"status_note":"Described as highly intact and in excellent condition; historic and current function is waterworks.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:51:52.864579-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_NY/04000347.pdf"},"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/75316614","wikipedia":"https://en.wikipedia.org/wiki/Stone_Spillway,_National_Defense_Stockpile_Center","wikidata":"https://www.wikidata.org/wiki/Q7619029"},"indexable":true,"url":"https://nationalhistoricalregister.com/new-york/broome-county/stone-spillway-national-defense-stockpile-center-04000347/"}