DESCRIPTION
Thirty-one miles of former railroad embankment will be inventoried and assessed for it's effects on adjacent and intersecting fish-bearing waterways. The embankment currently functions as the Klickitat Trail.
Field methods will delineate segments based on their relationship to waterways, valley bottoms, and adjacent hillslopes. Segment attributes collected will include condition elements such as erosion and vegetation characteristics. Culverts will also be inventoried.
Analysis will produce a prioritization and conceptual design prescription alternatives for each segment.
The method employed was developed during a similar effort conducted on 11 miles of floodplain road embankment along the Klickitat River in 2008.
Thirty miles of former railroad infrastructure were inventoried and assessed for effects on fluvial and hillslope processes. The embankment and related structures currently function as a recreational corridor known as the "Klickitat Trail".
Field methods delineated segments based on their relationship to waterways, valley bottoms, and adjacent hillslopes. Segment attributes collected include condition elements such as erosion and vegetation characteristics. Water crossings including culverts and trestles were also inventoried.
The assessment identified seven major geographic units, summarized field attributes, described conceptual design strategies, prioritized geographic units with recommended strategies, and described scope-of-work for Phase 1 restoration.
