Dead Run Segment One Stream Restoration Project

Editor's Notes

• #21: STN 1. A summary of the number of trees impacted by the project 2. Map of the entire project limits with property lines and easements shown 3. Exhibits of each location where the limits of disturbance enters individual property owners’ lots with property lines, existing and proposed conditions, and easements shown 4. Critical erosion areas (immediately downstream of 2nd pedestrian bridge with sharp bands, property on left bank at bottom of project where stream is encroaching driveway, etc.) highlighted with pictures included 5. Include attached picture of a finished bridge and highlight the two new bridges and fair weather crossing.
• #22: GR - Basis for design (brief, to the point, where the overall design goal is clearly explained, the approaches (reference reach, analytical), and the typical range in parameters that define the proposed stream pattern, profile, and cross-section). GR talk highlights: Basis for design…We want a stable channel, Understanding of floodplain, flooding concerns were taken into consideration when establishing the final stream pattern and the modeled proposed conditions show a drop in the water surface elevation for storms up to the 100-year event riparian corridor that address erosion NCD design approach. Streams Pyramid. Starts with understanding of hydrology and works up to understanding biology.
• #23: GR - Basis for design (brief, to the point, where the overall design goal is clearly explained, the approaches (reference reach, analytical), and the typical range in parameters that define the proposed stream pattern, profile, and cross-section). GR talk highlights: NCD includes use of stable reference reaches, analytical, use of regional curves and data for stable channel design, and engineering studies to verify hydraulics. Analysis the stream pattern, profile and section. emphasize that you have a range of allowable values to achieve a stable stream pattern which gives you a certain amount of flexibility in the design and allowed us to tweak the alignment to avoid trees to be saved.   However, make it clear that in order to achieve a stable pattern, a certain amount of tree loss is unavoidable, and also emphasize that it does give us an opportunity to improve the diversity of the buffer system.
• #24: GR - Basis for design (brief, to the point, where the overall design goal is clearly explained, the approaches (reference reach, analytical), and the typical range in parameters that define the proposed stream pattern, profile, and cross-section). GR talk highlights: Establish Goals Our goals are: 1. Improve flow conditions in the channel by changing channel shape (plan/profile/section). 2. create a stable channel by reducing bed/bank erosion that includes reduced contribution of nitrogen and phosphorus by arresting bank erosion. 3. Improve channel geomorphology and opportunities for species diversity. i.e use structures to stabilize channel and create pool habitats.
• #27: “at risk” is dead, leaning or exposed roots tree. Only 6 oaks >12” GR talk highlights: Current summary of trees 12” Small amount of diversity in species. – opportunities to improve. Est ~40 trees to be removed in concept design. To be refined as we progress.
• #30: Overall design plan of the upper half of the project
• #31: Overall design plan of the lower half of the project
• #32: Exhibits of each location where the limits of disturbance enters individual property owners’ lots with property lines, existing and proposed conditions, and easements shown
• #33: Exhibits of each location where the limits of disturbance enters individual property owners’ lots with property lines, existing and proposed conditions, and easements shown
• #34: Exhibits of each location where the limits of disturbance enters individual property owners’ lots with property lines, existing and proposed conditions, and easements shown
• #35: Exhibits of each location where the limits of disturbance enters individual property owners’ lots with property lines, existing and proposed conditions, and easements shown
• #36: Exhibits of each location where the limits of disturbance enters individual property owners’ lots with property lines, existing and proposed conditions, and easements shown
• #37: Exhibits of each location where the limits of disturbance enters individual property owners’ lots with property lines, existing and proposed conditions, and easements shown
• #38: Critical erosion areas in red/yellw and black/dark green Photos represents worst sections of Seg 1
• #39: Critical erosion on the RB (yellow) Some stable areas on RB and LB (blue) Want to restore the RB and see if we can take softer approach to the LB Also recall there is SS on the LB