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Fluvial Erosion Hazard Geospatial Network from the Marengo River Watershed, Ashland County, Wisconsin (ver. 2.0, February 2026)
An extreme flood in 2016 caused widespread culvert blockages and road failures across northern Wisconsin, including extensive damage along steep tributaries and ravines in the Marengo River watershed. Along with the flooding, there were fluvial erosion hazards (FEH) associated with a large amount of erosion in headwater areas. Of special concern were FEHs associated with gullying, loss of wetland storage, and valley-side mass wasting. In 2020, a pilot study was begun to map and classify ephemeral and perennial streams and wetlands in terms of their susceptibility to fluvial erosion hazards. This study combines rapid geomorphic field assessments of river corridor erosion and coupled sediment and debris delivery with mapping geomorphic vulnerability zones in a Geographic Information System (GIS). This dataset contains a shapefile of the stream network and attributes. Attribute values were updated in the 2026 version of this data release.
Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:12"
]
|
| contactPoint |
{
"fn": "Center Director",
"@type": "vcard:Contact",
"hasEmail": "mailto:mierardi@usgs.gov"
}
|
| description | An extreme flood in 2016 caused widespread culvert blockages and road failures across northern Wisconsin, including extensive damage along steep tributaries and ravines in the Marengo River watershed. Along with the flooding, there were fluvial erosion hazards (FEH) associated with a large amount of erosion in headwater areas. Of special concern were FEHs associated with gullying, loss of wetland storage, and valley-side mass wasting. In 2020, a pilot study was begun to map and classify ephemeral and perennial streams and wetlands in terms of their susceptibility to fluvial erosion hazards. This study combines rapid geomorphic field assessments of river corridor erosion and coupled sediment and debris delivery with mapping geomorphic vulnerability zones in a Geographic Information System (GIS). This dataset contains a shapefile of the stream network and attributes. Attribute values were updated in the 2026 version of this data release. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Digital Data",
"format": "XML",
"accessURL": "https://doi.org/10.5066/P9H3UZC5",
"mediaType": "application/http",
"description": "Landing page for access to the data"
},
{
"@type": "dcat:Distribution",
"title": "Original Metadata",
"format": "XML",
"mediaType": "text/xml",
"description": "The metadata original format",
"downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.6446f59ed34ee8d4adec6fc9.xml"
}
]
|
| identifier | http://datainventory.doi.gov/id/dataset/USGS_6446f59ed34ee8d4adec6fc9 |
| keyword |
[
"Ashland",
"Bad-Montreal",
"Great Lakes",
"North America",
"Southwestern Lake Superior",
"USGS:6446f59ed34ee8d4adec6fc9",
"United States",
"Wisconsin",
"erosion",
"geomorphology",
"geoscientificInformation",
"sediment transport",
"sedimentation",
"slope processes"
]
|
| modified | 2026-02-23T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -91.0446, 46.1905, -90.6717, 46.4617 |
| theme |
[
"Geospatial"
]
|
| title | Fluvial Erosion Hazard Geospatial Network from the Marengo River Watershed, Ashland County, Wisconsin (ver. 2.0, February 2026) |
