The first quarantine station for the city of Philadelphia was erected in 1743 just southwest of where the Schuylkill and Delaware Rivers meet on the modern Penrose Ferry Road. A building was erected for use by sick people arriving at the port of Philadelphia and was known as the Pest House or the Old Lazaretto. The building was sold in 1802, with the proceeds used to help pay for the newly built Lazaretto, located about six miles west. Efforts to control disease epidemics in the City of Philadelphia did not begin in earnest until after the devastating Yellow Fever Epidemic of 1793, which killed between 4,000 and 5,000 inhabitants—about one-tenth of the city's population at the time—and led the national government, which was then located there, to temporarily move out of the city. Following that epidemic, the commonwealth of Pennsylvania in 1798 created a Board of Health, controlled by the city, with the power to levy taxes for public health measures. The following year, the city Board of Health erected the Lazaretto on a site south of the city on the banks of the Delaware in Tinicum Township. In 1864, the municipal hospital of Philadelphia burned down and the board of health relocated it to the Lazaretto. Dr. J.L Forwood managed the hospital at the Lazaretto until the new building were completed. The new quarantine station included a hospital, offices, and residences. All passenger and cargo vessels bound for the port of Philadelphia were required to dock at the Lazaretto for inspection. Passengers suspected of contagion were quarantined in the hospital, and all suspect cargo was stored in the public warehouse. The Board of Health of the City of Philadelphia operated the facility and enforced the local quarantine regulations until the Commonwealth of Pennsylvania assumed authority for enforcing quarantine regulations in 1893. After it was closed as a hospital, it was used as an aviation base. The building was listed in the National Register of Historic Places in 1972. In the early 21st century, the site was threatened with development, but the work of local preservationists saved it from leveling. Tinicum Township purchased the building in 2005 and subsequently refurbished the building to serve as township offices.
