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Wetland Classification and Mapping of the Kenai Lowland, Alaska
Map Unit Descriptions Ecosystem: Riparian Map Unit: Rib
Extent: 103 wetland polygons; 222.3 ha; 0.16% of wetland area; 0.62% of wetland polygons. |
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![]() An Rib unit on the Kasilof River (polygon 9201). |
Wetland Indicators No Data available for Rib's Type: Mineral soil Average depth to water table: n/a Organic layer thickness: n/a Average depth to redoximorphic features: n/a Common Soils: n/a Common Plant communities: n/a
NWI: PSS1/EM1Jn HGM: Bidirectional-nontidal River Island |
| Accuracy assessment: 2 polygons interpreted as Rib on aerial photographs were field checked. They both remained Rib. | |
Rib wetlands are river islands and bars. These wetland units flood frequently, or have a shallow water table. Some island cores may be high enough above high water levels to not meet the criteria in the 1987 Army Corps Wetland delineation manual (USACE, 1987). Rib wetlands are found primarily in and along the Kenai River. A few also occur along the Kasilof River, and fewer still along Deep Creek.
Fifty foot habitat protection area
Fourteen streams in the project area are covered under Kenai Peninsula Borough's Anadromous Streams Habitat Protection Ordinance, including the Kenai and Kasilof River and Deep Creek. Many activities require a permit, or are prohibited within 50 feet of these streams. For a list of the streams, rationale for the ordinance, and details on obtaining a permit, visit the link highlighted above.
Floodplain regulation
From The Kenai Borough website:
"The Kenai Peninsula Borough manages a Floodplain Ordinance that addresses proper development to reduce flood risks and lessen the economic losses caused by flood events. The ordinance provides building standards for construction projects within the floodplain to ensure the availability of flood insurance through the National Flood Insurance Program. These building requirements also are intended to minimize or prevent damage when flood events occur. The ordinance requires floodplain development permits for all projects in floodplains."
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Introduction and Key to Plant Communities |
| Contact: Mike Gracz Kenai Watershed Forum Homer Field Office Old Town Professional Center 3430 Main Street Suite B1 Homer, AK 99603 907-235-2218 |
15 November 2005 15:05 |
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