{"nrhp_refnum":"12000394","name":"Riverview","other_names":["Fiberglas Tower, Levis Square, Riverview One, HyTower,","Tower on the Maumee"],"category":"building","location":{"address":"200 N. St. Clair St., 215 & 239 Summit St.","address_restricted":false,"city":"Toledo","county":"Lucas County","state":"OH","lat":41.650186301000076,"lon":-83.53485354999998,"geom_source":"nps_gis"},"listed_date":"2012-07-03","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture","Community Planning and Development","Landscape Architecture","Commerce"],"significance_levels":["local"],"summary":{"what_it_is":"Riverview is a three-resource complex in downtown Toledo, Lucas County, Ohio, made up of the 28-story Fiberglas Tower, a five-story parking garage and the Levis Square plaza, all built between 1967 and 1970 as part of an urban renewal plan.","why_significant":"The nomination argues Riverview was the centerpiece and most fully realized part of Toledo's highest-profile downtown urban renewal project, planned by I. M. Pei. It also served for over 20 years as headquarters of Owens-Corning Fiberglas, and the tower is regarded as the city's most significant Modernist landmark, designed by Harrison and Abramovitz.","narrative":"Riverview is a downtown Toledo complex of three parts: a 28-story glass-and-aluminum office tower completed in 1969, a five-story precast concrete parking garage with 415 spaces, and Levis Square, a city-owned plaza built around a square concrete fountain. All were built in 1967 to 1970 under a master plan by I. M. Pei for an urban renewal project. Harrison and Abramovitz designed the tower, a late example of the International Style glass box, with a brick service core and a recessed clear-glass first floor that gives a floating look. The complex mattered locally because it was the only part of the Riverview renewal plan built much as Pei envisioned. It also housed the Owens-Corning Fiberglas headquarters for more than two decades, during major growth and a takeover fight in the 1980s. The exterior and plaza retain high integrity, though the tower interior has lost many finishes and the building is currently vacant.","period_of_significance":"1969-1977","architect_builder":"Harrison and Abramovitz; Richards, Bauer, and Moorhead; I. M. Pei","architectural_style":"International Style","criteria":["A","C"],"status_note":"Current function is listed as vacant/not in use; the tower interior has lost finishes and ceiling panels to water damage and asbestos removal.","vacant_flag":true,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:52:07.800283-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_OH/12000394.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/12000394/10af443776-800.webp","url_1600":"https://nationalhistoricalregister.com/media/12000394/10af443776-1600.webp","licence":"CC BY-SA 2.0","author":"Warren LeMay","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Tower_on_the_Maumee,_St._Clair_Street_and_Summit_Street,_Toledo,_OH.jpg\" rel=\"noopener\">Warren LeMay</a>, <a href=\"https://creativecommons.org/licenses/by-sa/2.0\" rel=\"license noopener\">CC BY-SA 2.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Tower_on_the_Maumee,_St._Clair_Street_and_Summit_Street,_Toledo,_OH.jpg"},"district":{"nrhp_refnum":"100007510","name":"Toledo Central Business Historic District","url":"https://nationalhistoricalregister.com/districts/ohio/toledo-central-business-historic-district-100007510/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71989987","wikipedia":"https://en.wikipedia.org/wiki/Tower_on_the_Maumee","wikidata":"https://www.wikidata.org/wiki/Q5446386"},"indexable":true,"url":"https://nationalhistoricalregister.com/ohio/lucas-county/riverview-12000394/"}