{"nrhp_refnum":"01000903","name":"Marietta Historic District (Boundary Increase)","other_names":[],"category":"district","location":{"address":"Roughly bounded by Marion, Montgomery, Ohio, Greene, Butler, 2nd through 9th Sts., and Ohio and Muskingum Rs.","address_restricted":false,"city":"Marietta","county":"Washington County","state":"OH","lat":39.41590034500007,"lon":-81.45346728599998,"geom_source":"nps_gis"},"listed_date":"2001-08-21","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Community Planning and Development","Commerce","Economics","Industry","Architecture","Other"],"significance_levels":["local"],"summary":{"what_it_is":"A 480-acre historic district in Marietta, Washington County, Ohio, extending north and east of the existing Marietta Historic District from the confluence of the Ohio and Muskingum Rivers. It covers much of the 1788 Original Plat laid out by Rufus Putnam and contains 2,399 resources.","why_significant":"The nomination argues the district reflects Marietta's broad settlement and economic development under Criterion A, including floods in 1913 and 1937, industry moving to the city's edges, and the rise of tourism. Under Criterion C it contains a wide range of commercial, public and residential building styles and types. The boundary expansion and the extension of the period of significance to 1950 correct limits of the 1974 nomination.","narrative":"Marietta's historic core lies where the Muskingum River meets the Ohio River, at the site of the first permanent settlement in the Northwest Territory. This 480-acre district expands the earlier historic district to the north and east and includes most of the original 1788 grid plat laid out by Rufus Putnam, with wide numbered streets crossed by named streets and alleys through each block. Of 2,399 resources, 2,025 contribute to its character, including commercial blocks along Front Street, churches, a post office, an armory, museums and many houses ranging from Federal and Greek Revival to Queen Anne, Foursquare and Bungalow types. Many residential streets are still brick paved and tree lined. The district was listed for its role in the city's settlement and economic growth, including the effects of major floods in 1913 and 1937, the movement of industry to the city's edges and the growth of tourism, and for its architecture. Its period of significance was extended to 1950.","period_of_significance":"1788 - 1950","architect_builder":"Hovey, George W.","architectural_style":"Late Victorian (Italianate, Second Empire, Queen Anne), Greek Revival, Gothic Revival, Federal, Colonial Revival, Neo-Classical Revival, Art Deco, Bungalow and other styles","criteria":["A","C"],"status_note":"Mixed continuing use: commercial blocks, residences, museums and churches, with some houses converted to businesses. Some earlier industrial buildings have been replaced.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:52:07.295464-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_OH/01000903.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/01000903/9f78984b95-800.webp","url_1600":"https://nationalhistoricalregister.com/media/01000903/9f78984b95-1600.webp","licence":"CC BY 3.0","author":"Bwsmith84 (talk)","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Marietta_Historic_District.jpg\" rel=\"noopener\">Bwsmith84 (talk)</a>, <a href=\"https://creativecommons.org/licenses/by/3.0\" rel=\"license noopener\">CC BY 3.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Marietta_Historic_District.jpg"},"district":{"nrhp_refnum":"01001040","name":"Marietta Historic District (Boundary Decrease)","url":"https://nationalhistoricalregister.com/districts/ohio/marietta-historic-district-boundary-decrease-01001040/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71991935","wikipedia":"https://en.wikipedia.org/wiki/Marietta_Historic_District_(Marietta,_Ohio)","wikidata":"https://www.wikidata.org/wiki/Q6763234"},"indexable":true,"url":"https://nationalhistoricalregister.com/ohio/washington-county/marietta-historic-district-boundary-increase-01000903/"}