Overlays
Seven more ways to look at the map, layered on top of whichever topic is showing, drawn as real geometry and points rather than one color per ZIP code. Turn them on from the map's Layers drawer (desktop) or the Layers tab (phone); most are session-only for now, so a reload starts from the plain map again.
Infrastructure
Real geometry for 62 layers in four groups, drawn over any topic: pipelines and the electric grid, water and sewer works, roads, rail, transit and airports, and public-safety and other sites, each with its own source. Dense layers draw in as you zoom; hover anything for what it is and click for its card and source.
/map/#i=<layer id>,<layer id> (turn families on from the Layers drawer)
74 layers in 4 groups:
Energy
| Layer | Count | Source | Map |
|---|---|---|---|
| Natural gas transmission pipelines | 915 | EIA natural gas pipeline geometry via Esri's Federal User Community copy on ArcGIS Online; all rows show Status=Operating in this vintage. Source | Map |
| Oil, fuel and NGL pipelines | 43 | EIA pipeline geometry (via Esri's Federal User Community copy on ArcGIS Online) -- Crude_Oil_Trunk_Pipelines_1, Petroleum_Products_Pipelines_1, Hydrocarbon_Gas_Liquids_Pipelines_1. Source | Map |
| Gas compressors, storage and plants | 67 | HIFLD Open point-facility layers re-hosted at services5.arcgis.com/HDRa0B57OVrv2E1q (compressor stations, storage, processing via the OilGasInfrastructure mirror) and services2.arcgis.com/LYMgRMwHfrWWEg3s (market hubs). Source | Map |
| Refineries and fuel terminals | 105 | EIA facility data via HIFLD Open re-hosts: OilGasInfrastructure mirror (refineries, crude rail terminals, ports; services7.arcgis.com/p4qwkH3IF5hxHqd7) and services5.arcgis.com/HDRa0B57OVrv2E1q (product terminals, ethanol plants); biodiesel plants from services2.arcgis.com/ZOdjAzAQ2B0f85zi. Source | Map |
| Underground fuel tanks in use | 6,812 | EPA UST Finder feature layer (2021 compilation of state UST program data), Ohio Facilities (layer 0), 24563 Ohio facilities. Source | Map |
| Open leaking-tank releases | 1,822 | EPA UST Finder feature layer (2021 compilation of state UST program data), Ohio Releases (layer 1), 34249 Ohio release records. Source | Map |
| Shale gas wells (Utica and Marcellus) | 4,704 | ODNR Division of Oil and Gas Resources well inventory (Oilgas_Wells_public, 242,324 well heads, fetched 2026-09-08): wells flagged Utica Shale or Marcellus Shale or drilled horizontally, excluding plugged and never-drilled wells; the point is the surface well head (the pad), not the lateral Source | Map |
| Electric transmission lines | 2,840 | Homeland Infrastructure Foundation-Level Data (HIFLD) Electric Power Transmission Lines, via an ArcGIS Online mirror (services2.arcgis.com/FiaPA4ga0iQKduv3); Ohio source-record dates (SOURCEDATE) run 2014-07-09 to 2024-09-26. Source | Map |
| Substations | 2,615 | Homeland Infrastructure Foundation-Level Data (HIFLD) Electric Substations, via an ArcGIS Online mirror (services6.arcgis.com/OO2s4OoyCZkYJ6oE, "HIFLD Substations 1_9_25"); Ohio source-record dates (SOURCEDATE) run 2014-04-07 to 2021-06-01. Source | Map |
| Power plants | 201 | EIA-860/923-derived plant roster, report period 202502. Source | Map |
| Coal ash ponds and landfills | 18 | EPA's list of publicly accessible CCR-rule compliance sites, Ohio section (18 facilities), fetched 2026-09-10; coordinates joined from EIA's national power-plant roster (6 of 18 facilities, still-operating or recently so) or a documented fallback (12 of 18, mostly long-retired plants EIA no longer carries). Source | Map |
| Wind turbines | 525 | USGS U.S. Wind Turbine Database (USWTDB), version V9.0. Source | Map |
| Utility-scale solar | 67 | USGS U.S. Large-Scale Solar Photovoltaic Database (USPVDB), version v4.0. Source | Map |
Water and sewer
| Layer | Count | Source | Map |
|---|---|---|---|
| Water mains (large, where published) | 2,794 | Large-diameter (>= 12 in) water mains from the public GIS services of GCWW, Butler County W&S, Dayton, Montgomery County ES, Del-Co, Middletown, Hamilton, Troy, Springfield and 15 smaller utilities, pulled 2026-09-10.; Utility, county and consultant ArcGIS services (Toledo, Lucas County, Mansfield, Stark County SCSE, Alliance, Louisville, Sandusky, Ashtabula County, Conneaut, Aurora, Barberton, New Franklin, Painesville, Medina County, RLCWA, Bowling Green, Allen Water District, Kent, Sylvania, Maumee, Trumbull County, Akron (Hudson extract), Auglaize County villages, Delphos, Upper Sandusky, Port Clinton, Williams County villages, Monroeville, Lexington, Archbold, Henry County, Findlay), fetched 2026-09-10; City, county and consultant ArcGIS services for Akron Water (Summit County copy), Dublin, Worthington, Gahanna, Hilliard, Reynoldsburg, Pickerington, Canal Winchester, Grandview Heights (Columbus DPU extract), Lorain, Hudson, Wadsworth, Cleveland Water (Solon extract), Wooster, Sidney, Shelby County, Newark, Oxford, Bucyrus, Oregon, Wauseon, Ottawa County, Warren County, Clermont County, Buckeye Water District, East Liverpool, Leetonia, Columbiana, Harrison and Morgan county village systems (Ohio RCAP), Monroe County, Jeffersonville; fetched 2026-09-10 Source | Map |
| Water towers, tanks and pump stations (where published) | 627 | Facility layers of the same city, county and district ArcGIS services that publish the water mains (GCWW, Butler County, Hamilton, Dayton, Montgomery County ES, Troy, Clark County, Marysville, Fairfield County, Circleville, London / Mid-Ohio WSD, Steubenville, Toledo regional system, NWWSD, Mansfield, Medina County, Alliance, Louisville, Aurora, Ashtabula County, Conneaut, Upper Sandusky, Lexington, Monroeville, Delta, Williams County, Sandusky, Dublin, Pickerington, Muskingum County, Harrison County villages, Zanesville, Lodi), pulled 2026-09-10. Source | Map |
| Water towers and tanks (OpenStreetMap) | 1,450 | OpenStreetMap contributors, Overpass API, 2026-09-10 Source | Map |
| Water works and pumping stations (OpenStreetMap) | 837 | OpenStreetMap contributors, Overpass API, 2026-09-10 Source | Map |
| Interceptor sewers and tunnels (where published) | 10,186 | Sewers >= 24 in plus force mains and named interceptors from the public GIS services of MSD of Greater Cincinnati, Butler County W&S, Dayton, Montgomery County ES, Delaware County RSD, Middletown, Hamilton, Springfield, Troy and 15 smaller utilities, pulled 2026-09-10.; NEORSD District sewer network (public ArcGIS Online item), Cleveland WPC, Summit County DSSS (own sewers plus Akron, Cuyahoga Falls, Portage County and village copies in its Cityworks basemap), Medina County Sanitary Engineer, Stark County Sanitary Engineer, Canton, Massillon, Alliance and Stark villages, Toledo, Lucas County, Sylvania, Maumee, Bowling Green, Mansfield, Mahoning County, Warren, Holmes County, Aurora, North Olmsted, Cleveland Heights, Broadview Heights, Lakewood, Allen County, Lima, Delphos, St. Marys, New Knoxville, Tiffin, Ottawa County, Williams County villages, Ashtabula County, Ashland, Archbold, Lexington, Barberton, Norton, Wadsworth; storm trunks 48 in and up from Toledo and Stark County; fetched 2026-09-10; City, county and consultant ArcGIS services for Dublin, Worthington, Gahanna, Reynoldsburg, Pickerington, Canal Winchester, Grandview Heights (Columbus DPU extract), Shaker Heights, Solon, Lorain (incl. the Black River storage tunnel), Portage County Water Resources, Wooster, Sidney, Shelby County Sewer District, Newark, Oxford, Napoleon, Minster, Bucyrus, Wauseon, Warren County, East Liverpool, Leetonia, Columbiana, Wellsville, Henry County, Harrison County villages (Ohio RCAP); storm trunks 48 in and up from MSD Cincinnati, Dayton, Lancaster, Springfield, Middletown and Zanesville; fetched 2026-09-10 Source | Map |
| Lift stations, CSO structures and storage basins (where published) | 2,342 | Facility layers of the same city, county and district ArcGIS services that publish the sewers (MSD of Greater Cincinnati, Butler County, Middletown, Dayton, Troy, Miami County, Clark County, Springfield, Delaware County RSD, Delaware, Marysville, Fairfield County, Lancaster, Circleville, London, Wilmington, Zanesville, Steubenville, NEORSD, Summit County DSSS, Portage County, Norton, Barberton, Medina County, Stark County SCSE, Canton, Massillon, Alliance and Stark villages, Toledo, Lucas County, Sylvania, Mansfield, Mahoning County, Holmes County, Aurora, North Olmsted, Broadview Heights, Allen County, Delphos, Ottawa County, Edgerton, Ashtabula County, Conneaut, Lexington, NWWSD, Sandusky, Muskingum County, Harrison County villages), pulled 2026-09-10. Source | Map |
| Sewage treatment plants | 516 | EPA ECHO Clean Water Act facility search, POTW-component permits for Ohio, pulled 2026-09-08 (516 plants after dropping terminated/expired permits and minor non-major plants under 0.1 MGD). Source | Map |
| Combined sewer overflow outfalls | 1,040 | Ohio EPA Division of Surface Water, Combined Sewer Overflows (Hosted/Combined_Sewer_Overflows__Ohio_EPA, 1,058 outfalls of 71 permit holders with outfall number, status, receiving water and location description), fetched 2026-09-16; replaces the EPA ECHO-based layer of 2026-09-10, whose 1,426 permit records collapsed to 635 locations because ECHO places most outfalls at the plant Source | Map |
| Industrial and other permitted dischargers | 3,361 | EPA ECHO Clean Water Act facility search (cwa_rest_services), Ohio rows (4680 facilities). Source | Map |
| Source water protection areas | 8,246 | Ohio EPA Division of Drinking and Ground Waters, Source Water Assessment and Protection (SWAP) program: inner management zones (1-year time of travel) and source water protection areas (5-year) for groundwater systems, and the emergency management, corridor management and drainage-area protection zones for inland surface-water intakes, the critical assessment and potential influence zones for Lake Erie intakes, and the zones of critical and high concern for Ohio River intakes; the six layers of the DrinkingWater/SWAP map service, pulled 2026-09-09 for the Groundwater and Water cards Source | Map |
| Stormwater (MS4) permit areas | 621 | Ohio EPA Division of Surface Water, MS4 Regulated Areas map service, layer 0 (regulated small municipal separate storm sewer systems with their general-permit numbers and status: permitted, waivered, not subject), pulled 2026-09-09 for the Sewage card; the service also carries the 2020-2030 urban-area redesignation as layer 9 Source | Map |
| Biosolids application fields | 16,673 | Ohio EPA Division of Surface Water, Biosolids map service (approved sewage-sludge land-application fields with the generating treatment plant, permit, acreage, cumulative pollutant loading tracking, complaints and retirement), pulled 2026-09-09 for the Sewage card Source | Map |
| Groundwater monitoring wells | 384 | Ohio EPA Division of Drinking and Ground Waters, Ambient Ground Water Quality Monitoring Program network (DrinkingWater/Ambient_GW_Monitoring; 392 wells with sampling status, site type, aquifer, lithology and depths), pulled 2026-09-09 for the Groundwater card Source | Map |
| Pipelines traced in OpenStreetMap | 191 | OpenStreetMap contributors, Overpass API, 2026-09-10 Source | Map |
| Dams | 1,402 | National Inventory of Dams (U.S. Army Corps of Engineers), Ohio rows, pulled 2026-09-08 (1,402 dams: 421 high hazard, 501 rated poor). Source | Map |
| Levees and floodwalls | 142 | FEMA National Flood Hazard Layer, levee centerlines and floodwalls (layer 23), Ohio rows (DFIRM_ID LIKE '39%'), pulled 2026-09-09 (298 tile segments). Source | Map |
| Locks and dams | 20 | USACE Navigation Data Center "Waterway Locks" (Lock Characteristics), published via the USDOT/BTS National Transportation Atlas Database on ArcGIS Online, filtered by name to the ten Ohio River structures named in the brief; the Muskingum River's ten remaining locks (a state waterway, not in the USACE inventory) are hand-researched -- see notes. Source | Map |
| Navigable waterways | 144 | USACE Navigation Data Center "National Waterway Network Lines", published via USDOT/BTS NTAD on ArcGIS Online, filtered to RIVERNAME in {OHIO RIVER, LAKE ERIE, MUSKINGUM RIVER} and clipped to Ohio + Lake Erie; the six named Lake Erie harbor channels called out in the brief are not broken out by name in that source (it treats them as part of the Lake Erie waterway ID) so the tributary river channel geometry for five of them is added from OpenStreetMap, trimmed to an approximate lower/harbor reach near the lake. Source | Map |
| Ports and docks | 297 | USACE Navigation Data Center "Principal Ports" (annual tonnage ranking) and "Navigation Facilities" (Docks; individual terminal/dock inventory), published via USDOT/BTS NTAD on ArcGIS Online. Source | Map |
| Boat ramps and water access | 344 | ODNR Division of Wildlife facility layers (DOW_Services/DOW_Facilities/MapServer, layer 1 boat launch ramp, layer 2 fishing access, layer 5 swim area), 162 + 156 + 32 points. Source | Map |
| USGS stream gauges | 327 | USGS National Water Information System site inventory for Ohio, surface-water sites (streams, lakes, springs) with a current or historical gauge record; fetched 2026-09-09 for the Watershed card Source | Map |
Transport
| Layer | Count | Source | Map |
|---|---|---|---|
| Highways | 1,069 | Ohio Department of Transportation statewide traffic count segments, 2025 AADT, from ODOT's own TIMS server (Roadway_Information/Traffic_Count_Segments); pulled whole on 2026-09-13 (185,755 segments). Source | Map |
| Major bridges | 291 | FHWA National Bridge Inventory, 2025 vintage for Ohio; refreshed 2026-09-09 (26,713 structures, 123 NBI item columns). Source | Map |
| Every bridge and culvert | 26,495 | FHWA National Bridge Inventory, 2025 vintage for Ohio, refreshed 2026-09-09 (26713 structures, 123 NBI item columns); the same data the major-bridges layer draws its long-span subset from. Source | Map |
| Traffic signals (ODOT inventory) | 2,878 | ODOT TIMS ITS Device Inventory (Assets/ITS_Device_Inventory), DEVICE_TYPE_2='Signalized Intersection' (2646 features) and 'Overhead Flashers' (232 features), 2894 source rows deduplicated on position within 10 m to 2878 points, fetched 2026-09-16. Source | Map |
| Park-and-ride lots and rest areas | 149 | ODOT TIMS asset inventories: Park and Ride Locations (51 lots) and ODOT Facilities filtered to USE_CATEGORY IRA/SRA/PRA (interstate, secondary and primitive rest areas, 87 sites) and TP (truck weigh stations, 11 sites), fetched 2026-09-10. Source | Map |
| ODOT garages and facilities | 263 | ODOT TIMS asset inventory (Assets/ODOT_Facilities), every USE_CATEGORY except the rest areas and truck weigh stations already in Park & Ride (IRA/SRA/PRA/TP): 265 distinct facility sites (386 underlying land/building asset records) collapsed to one point per site, fetched 2026-09-16. Source | Map |
| Railroads | 9,735 | US DOT BTS National Transportation Atlas Database (NTAD), North American Rail Network Lines, 2025 vintage. Source | Map |
| Amtrak routes | 4 | US DOT BTS National Transportation Atlas Database (NTAD), Amtrak Routes, 2025 vintage. Source | Map |
| Rail yards, terminals and stations | 54 | US DOT BTS NTAD Intermodal Freight Facilities (Rail TOFC/COFC) and Amtrak Stations, 2025 vintage; major-yard points derived from NTAD North American Rail Network Lines / NTAD Rail Yards yard-track segments; web research for facility names not carried by NTAD. Source | Map |
| Grade crossings | 8,467 | FRA Grade Crossing Inventory, current records for Ohio, pulled from Socrata on 2026-09-09, with the crossingclosed status field merged from a status-only pull on 2026-09-13 (20,449 records). Source | Map |
| Airports and airfields | 563 | FAA National Airspace System Resource (NASR) landing facility data for Ohio, via NTAD; 8 out-of-state airline airports added by hand with published coordinates for the airports serving Ohio's edges. Source | Map |
| Runways | 176 | FAA runway master record (Runways_View), Bureau of Transportation Statistics NTAD ArcGIS Online, national layer filtered to STATE_CODE=OH. Source | Map |
| Bus and transit routes | 425 | US DOT BTS National Transportation Atlas Database (NTAD), National Transit Map Routes (GTFS shapes.txt/routes.txt as submitted by each agency to the National Transit Map), 2025 vintage; plus each agency's own published GTFS feed for the 3 Ohio agencies absent from NTM Routes (Springfield City Area Transit, Lancaster-Fairfield Public Transit, Knox County Transit); plus each agency's own published GTFS feed (WayGo via rapid.nationalrtap.org's GTFS file management host; BGSU Shuttle via its TripShot hosting) for 2 more Ohio fixed-route systems absent from the BTS National Transit Map. Source | Map |
| Transit stops | 24,527 | US DOT BTS National Transportation Atlas Database (NTAD), National Transit Map Stops (GTFS stops.txt as submitted by each agency to the National Transit Map), 2025 vintage; plus each agency's own published GTFS stops.txt for the 3 Ohio agencies absent from the National Transit Map (Springfield City Area Transit, Lancaster-Fairfield Public Transit, Knox County Transit), the same 3 as the transit routes layer; plus each agency's own published GTFS stops.txt for WayGo and BGSU Shuttle, the same 2 agencies and feeds as the transit routes layer. Shown on the page together with the 25,410 stops from the National Transit Map plus 3 other GTFS-fallback agencies. Source | Map |
| Bus and rail terminals and transit stops | 258 | US DOT BTS National Transportation Atlas Database (NTAD), Intermodal Passenger Connectivity Database (IPCD). Source | Map |
| Ferries | 10 | US DOT BTS National Transportation Atlas Database (NTAD), National Census of Ferry Operators (NCFO) Routes and Terminals. Source | Map |
| Trails and state bike routes | 392 | ODNR statewide trails inventory (layer 3: 249 named trails with status and class) and Ohio state bike routes (layer 4), fetched 2026-09-09 for the Parks card Source | Map |
Utilities and sites
| Layer | Count | Source | Map |
|---|---|---|---|
| Cell and broadcast towers | 3,990 | FCC Antenna Structure Registration database, pulled 2026-09-09 (r_tower.zip, weekly extract, RA/CO/EN pipe-delimited tables). Source | Map |
| Broadcast transmitters | 821 | FCC LMS (Licensing and Management System) public database dump -- facility, facility_applicant, assigned_authorization, app_location, app_antenna and app_am_antenna tables, snapshot dated 09-15-2026 -- as the primary source for every station's registry facts (callsign, service, status, community of license, licensee) and, where the facility's current authorization chain still carries one, its technical facts (coordinates, power, height above average terrain). Cross-checked and, for the roughly 40% of facilities whose current authorization is a plain renewal with no re-filed technical data, filled in from the FCC's transition.fcc.gov fmq/amq/tvq query tools (list=4, one query per service per state), fetched 2026-09-15. Source | Map |
| Data centers | 93 | OpenStreetMap contributors, Overpass API, 2026-09-10 Source | Map |
| EV chargers | 1,849 | NREL Alternative Fuels Data Center, via the USDOT Bureau of Transportation Statistics feature service, Ohio electric stations, station list as of 2026-05-29, pulled 2026-09-08 (2,136 rows). Source | Map |
| Landfills and waste facilities | 1,078 | Ohio EPA solid waste facilities: the Hosted/Landfills feature layer (590 points, pulled 2026-09-09) for landfills, plus the DMWM licensed-facility list (658 points, pulled 2026-09-09) for the non-landfill facility types it adds (composting, transfer, C&DD processing, scrap tires, infectious waste) that the landfills layer does not carry. The landfills layer is not only licensed sites: it also maps closed landfills and historic dumps, most of them without an operating status. Source | Map |
| Hazardous waste treatment, storage and disposal sites | 456 | EPA ECHO RCRAInfo facility search (rcra_rest_services), Ohio rows (36398 handlers). Source | Map |
| Quarries, pits and mineral mines | 365 | ODNR Division of Geological Survey, Industrial Minerals Locations 2015 (DGS_Services/Mineral_Industry_Locations_AGOL/MapServer/0), 368 working operations. Source | Map |
| Mining permits | 5,534 | ODNR Division of Mineral Resources Management, Mines of Ohio map service: coal-mining surface permits (layers 11 Proposed/12 Current/13 Past: 0/94/4,033 permits) and underground permits (17/18+19/20: 0/31/102, with 18 Permitted and 19 Current pooled into one 'current' status), and industrial-minerals surface permits (26/27/28: 0/555/1,103) and underground permits (31/32/33: 0/5/16), fetched 2026-09-16. One feature per ODNR permit (Permit_ID, or State_Mine_ID/National_ID when a permit number is missing); ODNR's own multi-panel rows for one permit are merged into a MultiPolygon here. Source | Map |
| Brine injection and gas storage wells | 3,520 | ODNR Division of Oil and Gas Resources well inventory (Oilgas_Wells_public map service, 242,324 well heads, fetched 2026-09-08): wells whose map symbol is Injection (Class II brine disposal and enhanced recovery) or Gas storage, excluding plugged and restored wells Source | Map |
| Abandoned underground mines | 1,602 | ODNR Division of Mineral Resources Management, Mines of Ohio: underground coal mines with known extent, partially known extent, and underground industrial-mineral mines (limestone, salt, gypsum, clay), fetched 2026-09-08 for the Mines mode; dissolved into contiguous areas here Source | Map |
| Superfund sites | 50 | EPA's FRS Superfund/NPL point service, Ohio rows, pulled 2026-09-08 (50 sites: 37 final, 9 deleted, 4 proposed). Source | Map |
| Brownfields and cleanup sites | 3,286 | Ohio EPA Division of Environmental Response and Revitalization (DERR): Hosted/DERR_SITES_POINTS (2,891 DERR case sites statewide), LandUse/DERR_CNS (1,069 VAP no-further-action/covenant-not-to-sue documents), Derr/TBA_Sites_Public (232 targeted brownfield assessments; Hosted/DERR_TBA's 194 rows are a strict subset and not counted again) and Hosted/Post_Closure_Sites (51 RCRA post-closure sites; Derr/Post_Closure_Sites/MapServer serves the identical 51 and is not counted again), fetched 2026-09-15. Source | Map |
| Permitted livestock facilities | 245 | Ohio Department of Agriculture Division of Livestock Environmental Permitting's roster of Permit-to-Install/Permit-to-Operate facilities, via FracTracker Alliance's geocoded republication "Ohio Confined Animal Feeding Operations or CAFOs" (ArcGIS Online Feature Service, 224 rows; ODA's own site publishes no downloadable roster of its own); EPA ECHO Clean Water Act facilities extract (4,680 Ohio rows) filtered to CAFO-family SIC codes for 59 NPDES-permitted corroborating/additional rows; US Census Bureau batch geocoder (geocoding.geo.census.gov, benchmark Public_AR_Current) re-geocoding every street address from the first source. Fetched 2026-09-15. Source | Map |
| Tire and battery drop-off sites | 396 | Ohio EPA Division of Materials and Waste Management: Scrap Tire Drop-Off Sites (129) and Battery Drop-off Sites (275), the two Hosted feature services, pulled 2026-09-09 for the Sewage and Toxic sites cards Source | Map |
| Pipeline incidents since 2010 | 246 | PHMSA Pipeline Safety Flagged Incident files (gas distribution, gas transmission & gathering, hazardous liquid), 2010-present workbooks. Source | Map |
| Military installations | 15 | DoD Military Installations, Ranges, and Training Areas (MIRTA), via the "Esri_US_Federal_Data" ArcGIS Online mirror (points item modified 2026-09-09; polygons item used only to compute acreage), fetched 2026-09-10. Source | Map |
| Prisons and jails | 237 | HIFLD Prison Boundaries, via the "Prison Boundaries, USA, 2020" ArcGIS Online mirror (Ohio source-record SOURCEDATE 2012-02-16 to 2020-04-22); original polygons reduced to centroids (EPSG:5070). Fetched 2026-09-10. Source | Map |
| Weather stations and radars | 60 | NCAR/RAP surface station list (Ohio block last verified 03-SEP-20; file overall last updated 2022-05-08), a compiled METAR/NEXRAD/upper-air station table used in place of aviationweather.gov/docs/metar/stations.txt (404s); fetched 2026-09-10. NEXRAD tower coordinates for KCLE/KILN from the NEXRAD Radar Operations Center site list. Source | Map |
| Hospitals | 281 | FEMA/HIFLD Hospitals layer, Ohio rows, pulled 2026-09-08 (307 rows, plus 2 opened since; 286 open after closures, 281 after folding 5 duplicate campus points). Source | Map |
| Fire and EMS stations | 1,772 | USGS National Map structures service, Fire Stations/EMS Stations layer, Ohio, pulled 2026-09-08 (1,768 records), corrected (5 duplicate or out-of-date records dropped, 1 moved, 9 added from the Columbus and Cleveland station lists, September 2026): 1,772 stations. Source | Map |
| Police and sheriff stations | 773 | USGS National Map structures service, Police Stations layer, Ohio, pulled 2026-09-08 (731 records), corrected (3 closed or duplicate records dropped, 4 wrong or misspelled names fixed), plus 45 departments and sheriff's offices the layer lacks (OpenStreetMap points or the Census Bureau geocoder on each department's published address, September 2026): 773 points. Source | Map |
| 911 call centers | 125 | FCC 911 Master PSAP Registry V2.225.xlsx (transition.fcc.gov mirror, file dated Jan. 6, 2017; Ohio subset cross-checked against the FCC's Socrata copy at opendata.fcc.gov/resource/dpq5-ta9j.json, "Updated as of February 26, 2019") for PSAP names, ids and counties, corrected for Ohio's post-2013 countywide/regional 911 consolidation using: the Cuyahoga County 9-1-1 Plan (Adopted March 6, 2024); current Franklin, Hamilton, Montgomery, Summit, Lucas, Mahoning and Stark county/city government and news sources; the US Census Bureau geocoder (geocoding.geo.census.gov, benchmark Public_AR_Current) for street addresses; and, for counties where we found no dispatch address, the county sheriff's location from our police layer (USGS National Map / OpenStreetMap / Census geocoder, pulled 2026-09-08) as a stand-in. Fetched 2026-09-15. Source | Map |
| Post offices | 1,131 | USGS National Map structures inventory (GNIS post office points), Ohio, fetched 2026-09-09 for the Police card Source | Map |
FEMA flood zones
The National Flood Hazard Layer's actual zone polygons and levee lines, drawn county by county once you zoom in close enough -- separate from the Flood topic's ZIP-level share of residents in the floodplain.
/map/ (turn on Flood in the Layers drawer, then zoom to about county level; session-only, not yet deep-linkable)
Cameras
ODOT traffic cameras, license-plate readers, and red-light or speed cameras, plotted from public feeds and a few cities' own lists and grouped by type.
/map/ (turn on Cameras in the Layers drawer; session-only)
Farmland and data centers
Farmland parcels that sold since 2016 for well above the county median, gained sharply in valuation, or went to a company, next to researched data-center sites, a watchlist, and the power projects and moratoria tied to them.
/map/ (turn on Farmland in the Layers drawer; session-only)
Historical maps
Scanned historical atlases and surveys -- 2,528 cataloged, a growing number loaded as image sheets -- laid over today's map at adjustable opacity, so a street can be checked against an 1872 atlas page.
/map/?hist=<map id>,<map id>
Base maps
Atlas (the map's own drawing), Streets (OpenStreetMap) or Satellite (Esri World Imagery, or bundled aerial photos where a host blocks outside images) -- the ground the ZIP colors sit on.
/map/ (the Atlas / Streets / Satellite buttons under the map; choice persists in this browser)
Wells and wellhead protection
Individual water-well log points and Ohio EPA's wellhead protection areas, switched on for reference alongside whichever topic is active.
/map/ (the Wells checkbox in the Layers drawer)
Cite this page
Cite this page as:
Cracked Buckeye, "Overlays", https://crackedbuckeye.com/overlays/, built 2026-10-31, accessed [date].
How to cite · Report a correction · Built 2026-10-31
