{"nrhp_refnum":"76001662","name":"Fairmount Water Works","other_names":[],"category":"district","location":{"address":"E banks of Schuylkill River","address_restricted":false,"city":"Philadelphia","county":"Philadelphia","state":"PA","lat":39.965864626292586,"lon":-75.18483062350398,"geom_source":"nps_gis"},"listed_date":"1976-05-11","is_nhl":true,"nhl_designated_date":"1976-05-11","areas_of_significance":["Art","Economics","Military","Transportation","Architecture","Social History"],"significance_levels":["national"],"summary":{"what_it_is":"The Fairmount Water Works is a historic water pumping complex on the east bank of the Schuylkill River at Fairmount in Philadelphia, Pennsylvania, with a stone mill-house, stuccoed Doric-porticoed end pavilions, a terrace, a forebay cut from rock, and a dam across the river.","why_significant":"The nomination argues the works were an engineering achievement and an architectural landmark, the first municipal water works in the country to use paddle wheels for pumping and later the first to switch to turbines. Its classical buildings were enhanced by sculpture by William Rush, and its landscaped setting became the nucleus of Fairmount Park.","narrative":"Fairmount Water Works sits on the east bank of the Schuylkill River in Philadelphia, where a dam built in 1819 diverted water into a forebay cut from solid rock. Frederick Graff, a former chief draftsman for Benjamin Latrobe, designed and directed the works, which began pumping water in 1822 and were powered by eight water wheels in a stone mill-house of 238 by 56 feet. The Roman Revival pavilions with Doric porticos at each end reflected the classical style of the period, and the complex was regarded as an early joining of engineering and architecture. Sculptures by William Rush, including Schuylkill Chained and Schuylkill Freed, were placed at its entrances, and the grounds grew into the nucleus of Fairmount Park. The works were closed around 1911 and later converted to an aquarium. Its significance rests on its engineering firsts, its classical design, and its role as an early public landscape in Philadelphia.","period_of_significance":"1812-22","architect_builder":"Frederick Graff (1774-1847)","architectural_style":"Greek Revival","criteria":[],"status_note":"Vacant since 1962, according to the document.","vacant_flag":true,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:29.430757-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/76001662_NHL.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/76001662/e80ca6b1b5-800.webp","url_1600":"https://nationalhistoricalregister.com/media/76001662/e80ca6b1b5-1600.webp","licence":"Public domain","author":"Jack E. Boucher","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Fairmount_Water_Works_LOC_314409cu.jpg\" rel=\"noopener\">Jack E. Boucher</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Fairmount_Water_Works_LOC_314409cu.jpg"},"district":{"nrhp_refnum":"72001151","name":"Fairmount Park","url":"https://nationalhistoricalregister.com/districts/pennsylvania/fairmount-park-72001151/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71994295","wikipedia":"https://en.wikipedia.org/wiki/Fairmount_Water_Works","wikidata":"https://www.wikidata.org/wiki/Q5430659"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/philadelphia/fairmount-water-works-76001662/"}