{"nrhp_refnum":"84000340","name":"Standard Oil Gasoline Station","other_names":["Welco Gas Port"],"category":"building","location":{"address":"600 W. Lockport St.","address_restricted":false,"city":"Plainfield","county":"Will County","state":"IL","lat":41.60817990600003,"lon":-88.20567948199994,"geom_source":"nps_gis"},"listed_date":"1984-11-13","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Commerce","Transportation","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A small one-story, single-bay gasoline station at 600 West Lockport Street in Plainfield, Will County, Illinois, built in 1932 as a Standard Oil station and later known as the Welco Gas Port.","why_significant":"The station is presented as a well-preserved example of the 'house with canopy' Domestic type of early gasoline station, here mixed with Spanish mission elements. It reflects early automobile-era roadside commerce and Standard Oil's move toward corporate imagery, and it sits on the Lincoln Highway route, later U.S. Route 30. It is described as possibly one of the last decorative stations in the Chicago area.","narrative":"Built in 1932 as a Standard Oil gasoline station at 600 West Lockport Street in Plainfield, Illinois, this small brick and stucco building later operated as the Welco Gas Port. It has a one-story, single-bay plan with an enclosed office and restroom beside an open canopied bay, a pitched roof of metal sheeting imitating mission tile, finials on the gables, and four piers topped with glass-globed lights. A cement block car wash addition from about 1960 gives it an L shape. The station is notable as an example of the 'house with canopy' Domestic type, combined here with Spanish elements. Standard Oil developed early station chains and later a prefabricated prototype with tile roofing and stucco. The site lay along the Lincoln Highway, later U.S. Route 30, which passed through Plainfield. Only the gasoline pumps and an octagonal neon clock appear to be missing from the original appointments, so the building remains a recognizable survivor of early roadside architecture.","period_of_significance":"1900-","architect_builder":"Standard Oil Company design","architectural_style":"Domestic 'house with canopy' type with Spanish mission elements","criteria":[],"status_note":"Described as in good to excellent condition and largely intact, continually occupied until recent months; the form lists the status as occupied and unoccupied.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:55:35.45251-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/37/8943/28894337/content/electronic-records/rg-079/NPS_IL/84000340.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/84000340/3660c71b2d-800.webp","url_1600":"https://nationalhistoricalregister.com/media/84000340/3660c71b2d-1600.webp","licence":"CC BY-SA 3.0","author":"Teemu08 at en.wikipedia","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:StandardOilPlainfield.JPG\" rel=\"noopener\">Teemu08 at en.wikipedia</a>, <a href=\"https://creativecommons.org/licenses/by-sa/3.0\" rel=\"license noopener\">CC BY-SA 3.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:StandardOilPlainfield.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/28894337","wikipedia":"https://en.wikipedia.org/wiki/Standard_Oil_Gasoline_Station_(Plainfield,_Illinois)","wikidata":"https://www.wikidata.org/wiki/Q7598279"},"indexable":true,"url":"https://nationalhistoricalregister.com/illinois/will-county/standard-oil-gasoline-station-84000340/"}