Wetland Classification and Mapping
of Seward, Alaska
Map Unit Descriptions
Map Component: RC
Seward Area Extent: 1 wetland polygon; 8.9 acres
The only stream mapped as RC in the Seward area, not far above its confluence with Sawmill Creek. Note the small point bar on the right.
Depth to water table: not measured
Organic layer thickness: not measured
Average depth to redoximorphic features: not measured
Common Soils: Typic Cryofluvents
Common Plant communities:
Sitka spruce / Sitka alder (Picea sitchensis / Alnus viridis ssp. sinuata)
Mountain hemlock / early blueberry (Tsuga mertensiana / Vaccinium ovalifolium)
NWI: Stream: R2US1. Adjacent valley wetlands: PSS1/FO1&3Jn
HGM: Stream: Middle Gradient Natural Stream-single thread. Adjacent valley wetlands: Lotic Flat/Slope groundwater-dominated Throughflow/Bidirectional-nontidal.
The single stream mapped as RC drains an unnamed glacier south of the Bear Lake Glacier. It flows through a spring fen complex before emptying into Sawmill Creek. RC streams have cut banks and point bars, with well-developed floodplains.
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."
|Contact: Mike Gracz Kenai Watershed Forum Homer Field Office Old Town Professional Center 3430 Main Street Suite B1 Homer, AK 99603 907-235-2218||
12 February 2007 15:23