Listed on the National Register of Historic Places in 1986.
“The William Haner Polygonal Barn was a historic building located near Pisgah in rural Harrison County, Iowa, United States. It was built in 1912 by Comstock Construction.”
Wikipedia article William Haner Polygonal Barn, CC BY-SA 4.0.
One of 13 National Register listings published here for Harrison County · listed in 1986 · category: Building.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service
Regional context, not property-specific evidence. The federal wildfire occurrence database lists 8 fires within 5 miles of William Haner Polygonal Barn between 2006 and 2018, burning about 541 acres in total. None started naturally. 1 was recorded as arson. Distance is straight-line from the map coordinates, so a fire counted here may appear on a neighbouring settlement's page as well.
| Reported cause | Fires |
|---|---|
| Missing data/not specified/undetermined | 7 |
| Arson/incendiarism | 1 |
The most recent of them, most recent first, with the day each was reported and the service that recorded it.
| Date | Cause | Size | Reported by | Name on the report |
|---|---|---|---|---|
| 16 June 2006 | Missing data/not specified/undetermined | 20 acres | Iowa Department of Natural Resources | not named |
| 23 April 2018 | Missing data/not specified/undetermined | 400 acres | Iowa Department of Natural Resources | not named |
| 25 March 2008 | Missing data/not specified/undetermined | 2.0 acres | Iowa Department of Natural Resources | not named |
| 22 March 2014 | Missing data/not specified/undetermined | 15 acres | Iowa Department of Natural Resources | not named |
| 11 March 2011 | Missing data/not specified/undetermined | 3.0 acres | Iowa Department of Natural Resources | 1299 LARADO, IA |
| 21 November 2012 | Arson/incendiarism | 40 acres | Iowa Department of Natural Resources | not named |
| 21 November 2012 | Missing data/not specified/undetermined | 60 acres | Iowa Department of Natural Resources | not named |
| 6 October 2011 | Missing data/not specified/undetermined | 1.0 acres | Iowa Department of Natural Resources | 2768 120TH ST. HARRISON CO IA, IA |
Regional context, not property-specific evidence. The National Weather Service names Pisgah, the town this property stands in, in 14 storm reports between 1996 and 2026: 8 hail, 2 flash flood, 2 thunderstorm wind, 2 tornado. No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.
| When | Event | Place named | Harm | What the report says |
|---|---|---|---|---|
| May 2023 | Flash Flood | Pisgah | $500,000 | Forest Service reported up to two dozen culverts washed out and six county roads that were partially or fully washed out. Large trees were washed into fields and there was significant damage to farm fields in several areas in the counties. There are significant areas of crop fields that likely lost in excess of 100 tons per acre from that one heavy rain event. The county estimated the damage to be approximately $400,000-$600,000. |
| April 2026 | Hail | Pisgah | - | Public report of hail estimated at 1.50 inches in diameter. |
| April 2026 | Hail | Pisgah | - | Trained spotter report of hail estimated at 1.00 inch in diameter. |
| September 2025 | Hail | Pisgah | - | Public report of hail estimated up to 1.00 inches in diameter. Report received via mPING. |
| April 2024 | Tornado (EF0) | Pisgah | - | This tornado was based on an eyewitness observation of two simultaneous tornadoes passing east and west of a farmstead. There was little damage observed with this tornado, with only minor tree damage being reported. The peak estimated winds in this tornado were 70 mph, with a peak width of 200 yards and an average width of 100 yards. |
| May 2012 | Thunderstorm Wind | Pisgah | - | Thunderstorm wind gusts estimated at around 60 mph downed 2 trees that were 20 to 30 feet tall with trunks nearly 10 inches in diameter. The time was estimated from radar. |
| June 2011 | Tornado (EF0) | Pisgah | - | A brief EF0 tornado spun up on the leading edge of a squall line about 1.2 miles southeast of Pisgah. Trees were snapped or uprooted from the tornado. The tornado ended about 1/2 mile east of Highway F20L and 135th St. |
| July 2009 | Hail | Pisgah | - | The hail was accompanied by strong winds but no estimate of the wind speed was given. |
| May 2008 | Thunderstorm Wind | Pisgah | - | Thunderstorm winds estimated at over 60 mph knocked down several large tree limbs and partially tore a metal roof off of a building in town. |
| June 2017 | Hail | Pisgah | - | no account filed |
| June 2014 | Hail | Pisgah | - | no account filed |
| April 2002 | Hail | Pisgah | - | no account filed |
| August 2001 | Hail | Pisgah | - | no account filed |
| June 1996 | Flash Flood | Pisgah | - | no account filed |
No historic map-sheet match is published for this property yet. That does not mean no map exists. This record needs a coordinate-quality review before it can be joined to a sheet boundary. Browse the county's mapped places while that work is pending.
Other National Register properties close enough to walk or drive between, ordered by distance from this one. Both positions come from the same geocoding pass that matched these properties to their map sheets.
| Photograph | Property | Distance | Listed |
|---|---|---|---|
 | I.O.O.F. Hall | 2.3 miles | 2011 |
| National Archives record | The nomination case file for reference 86001435 in Record Group 79. |
| Wikipedia article | Community-written account of this property, licensed CC BY-SA. |
| Harrison County | All 13 listed properties in this county. |
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