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5. lvrm ch8 ukraine culverts eb
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5. lvrm ch8 ukraine culverts eb
- NATURAL DRAINAGENATURAL DRAINAGE CROSSINGSCROSSINGS
- CULVERTSCULVERTS
- Stream Diversion
- Plugging
- Piping Failure
- Installation
- FISH PASSAGE / AOP
- FISH BARRIERS
- Location, location, location… 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 0-25 26-50 51-75 76-100 101-125 126-150 151-175 176-200 201-225 226-250 Roadfailures/mileofroad Distance from stream (meters) All failures (319) Mass wasting (229) Surface erosion (90)
- High value systems intersect with a dismal link Crooked Creek High Value Infrastructure High Value Ecosystems
- Climate Change Vulnerability Assessment
- Missouri Creek
- Red Sandstone Creek
- Summary
- Summary
- Ubiquitous Creek Aging Infrastructure
- Coal Creek
- Dutch Creek
- Swan River What are we doing?
- Lime Creek Stream Simulation
- North Thompson OPTIMAL: STREAM HEALTH / ROAD HEALTH / DEBRIS INPUTS
- MAINTAIN STREAM ECOSYSTEM CONNECTIVITY Ripple Creek
- East Fork Eagle ACCOMMODATE A RANGE OF FLOOD
- Straight Creek ACCOMMODATE DEBRIS AND SEDIMENT
- East Fork Eagle Creek LONG-LASTING: DESIGN LIFE 75 – 100 YEARS
- BEFORE AFTER
- CULVERT MAINTENANCE & REHABILITATION
- Clackamas County, OR CULVERT REHABILITATION ANDCULVERT REHABILITATION AND TRENCHLESS TECHNOLOGYTRENCHLESS TECHNOLOGY
- TYPES OF PIPE
Editor's Notes
- When it comes to road failures and erosion, we have found that we can prioritize our efforts by seeing where most failures occur. Data from forests in Pacific Northwest. The likelihood of a road failure increases with proximity to a stream. In other words, concentrated flowing water is the cause of most road failures.
- Example of web of small wood and sediment that incrementally lock together and plug the inlet of a pipe. Upper Last Chance, WRNF.
- Explain stream simulation as building a stream and putting a lid over it. Engineers have decided what happens at road-stream crossings for decades, and their focus was the road. Our values have changed and aquatic ecologist are having a say, and we have found that we can easily accommodate both.
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