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)

Open the map

62 layers in 4 groups:

Energy

Energy (13 layers)
LayerCountSourceMap
Natural gas transmission pipelines 915 EIA natural gas pipeline geometry via Esri's Federal User Community copy on ArcGIS Online, as pulled into data/pipelines/gas_pipelines_bbox.geojson for the ZIP-scoring pipelines mode; 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), on disk at data/ust/facilities_oh.json (24563 Ohio facilities), per HANDOFF.md's "Toxic sites card, underground tanks" bullet (2026-09-10). Source Map
Open leaking-tank releases 1,822 EPA UST Finder feature layer (2021 compilation of state UST program data), Ohio Releases (layer 1), on disk at data/ust/releases_oh.json (34249 Ohio release records), per HANDOFF.md's "Toxic sites card, underground tanks" bullet (2026-09-10). 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 already on disk (data/energy/power_plants_oh.geojson), 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, already on disk (data/renewables/uswtdb_V9_0_20260626.csv). Source Map
Utility-scale solar 67 USGS U.S. Large-Scale Solar Photovoltaic Database (USPVDB), version v4.0, already on disk (data/renewables/uspvdb_v4_0_20260414.csv). Source Map

Water and sewer

Water and sewer (17 layers)
LayerCountSourceMap
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 (data/sewage/potw_oh.geojson, 516 plants after dropping terminated/expired permits and minor non-major plants under 0.1 MGD). Source Map
Combined sewer overflow outfalls 635 EPA ECHO's national CSO inventory, Ohio rows, pulled 2026-09-09 (data/cso/cso_outfalls_oh.geojson, 1,427 outfalls for 89 permits). Source Map
Industrial and other permitted dischargers 3,361 EPA ECHO Clean Water Act facility search (cwa_rest_services), Ohio rows, on disk at data/echo/cwa_facilities_oh.csv (4680 facilities, 21 columns from scripts/fetch_echo_cwa.py), per HANDOFF.md's "Sewage card, other dischargers" bullet. 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 (data/dams/nid_oh.json, 1,402 dams: 421 high hazard, 501 rated poor per HANDOFF.md). 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 (data/levees/nfhl_levees_oh.json, 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), on disk at data/odnr/dow_{ramps,fishing,swim}.geojson (162 + 156 + 32 points), per HANDOFF.md's "Parks card, state lands" bullet. 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

Transport (15 layers)
LayerCountSourceMap
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 by scripts/fetch_traffic.py on 2026-09-13 (data/traffic/segments.json, 185,755 segments). Source Map
Major bridges 291 FHWA National Bridge Inventory, 2025 vintage for Ohio; refreshed 2026-09-09 (data/bridges/OH2025.txt, 26,713 structures, 123 NBI item columns). Source Map
Every bridge and culvert 26,495 FHWA National Bridge Inventory, 2025 vintage for Ohio (data/bridges/OH2025.txt, 26713 structures, 123 NBI item columns); HANDOFF.md's 2026-09-09 "Vintage refreshes, second round" bullet records this same refresh ("the National Bridge Inventory to 2025 ... 26713 structures, join_bridges.py"), and it is the same file scripts/fetch_infra_local.py's bridges_major layer already draws its long-span subset from. 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
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 (data/rail/fra_crossings_oh.json, 20,449 records; scripts/fetch_fra_crossings.py). Source Map
Airports and airfields 563 FAA National Airspace System Resource (NASR) landing facility data for Ohio, on disk at data/airports/faa_oh.geojson (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 directly for the 3 Ohio agencies confirmed absent from NTM Routes (Springfield City Area Transit, Lancaster-Fairfield Public Transit, Knox County Transit).; Each agency's own published GTFS feed (WayGo via rapid.nationalrtap.org's GTFS file management host; BGSU Shuttle via its TripShot hosting), for the 2 Ohio fixed-route systems a targeted web search (transit.land, the Mobility Database, agency sites) confirmed publish a feed among the checklist of agencies absent from both the BTS National Transit Map and data/infra/transit_routes.geojson. 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 directly for the 3 Ohio agencies confirmed absent from the National Transit Map (Springfield City Area Transit, Lancaster-Fairfield Public Transit, Knox County Transit) - the same 3 fetched by scripts/fetch_infra_transit.py for transit_routes, reusing its cached GTFS zips.; Each agency's own published GTFS stops.txt (WayGo, BGSU Shuttle) - the same 2 agencies and feeds as transit_routes_x; see that layer's meta for how they were found. Companion to data/infra/transit_stops.geojson (25,410 stops from the National Transit Map plus 3 other GTFS-fallback agencies), merged with it on the page by scripts/build_infra.py but written as a separate file per this task's instruction not to touch transit_stops.geojson itself. 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

Utilities and sites (17 layers)
LayerCountSourceMap
Cell and broadcast towers 3,990 FCC Antenna Structure Registration database, pulled 2026-09-09 (data/towers/r_tower.zip, weekly extract, RA/CO/EN pipe-delimited tables). 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 (data/ev/ev_stations_oh.geojson, 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, on disk at data/echo/rcra_facilities_oh.csv (36398 handlers, 21 columns from scripts/fetch_echo_rcra.py), per HANDOFF.md's "Toxic sites card, hazardous waste handlers" bullet. 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, on disk at data/minerals/industrial_minerals_2015_oh.geojson, per HANDOFF.md's "Mines card, quarries and pits" bullet. 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 (data/env/npl_oh.geojson, 50 sites: 37 final, 9 deleted, 4 proposed). 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 286 FEMA/HIFLD Hospitals layer, Ohio rows, pulled 2026-09-08 (data/hospitals_oh.geojson, 307 rows; 290 open after the closures in data/hospitals_closed.json, 286 after folding 4 duplicate campus points per data/hospitals_dups.json). Source Map
Fire and EMS stations 1,772 USGS National Map structures service, Fire Stations/EMS Stations layer, Ohio, pulled 2026-09-08 (data/fire/fire_ems_oh.geojson, 1,768 records), corrected by data/fire/station_fixes.json (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 (data/police/police_oh.geojson, 731 records), corrected by data/police/police_fixes.json (3 closed or duplicate records dropped, 4 wrong or misspelled names fixed), plus 45 departments and sheriff's offices the layer lacks (data/police/police_additions.geojson: OpenStreetMap points or the Census Bureau geocoder on each department's published address, September 2026): 773 points. 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)

Open the map

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)

Open the map

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)

Open the map

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>

Open the map

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)

Open the map

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)

Open the map

Cite this page

Cite this page as:

Cracked Buckeye (Open Shower Co), "Overlays", https://crackedbuckeye.com/overlays/, built 2026-09-16, accessed [date].

How to cite · Report a correction · Built 2026-09-16