Approach
Increase resilience of stream crossings, culverts, and bridges to higher peak flows.
Tactics
- Replace culverts with higher capacity culverts.
- Complete unit-wide inventory of culverts and bridges, including GPS locations of structures and accurate culvert data.
- Consider a process for replacing culverts based on projected future, rather than historical, peak flows.
- Consider prioritizing structure replacement in high-risk (mixed-rain-and-snow) watersheds.
- Reroute roads out of floodplains.
Sensitivity
Strategy
Raymond, C.L.; Peterson, D.L.; Rochefort, R.M., eds. (2014). Climate change vulnerability and adaptation in the North Cascades region. Gen. Tech. Rep. PNW-GTR-892. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station., Raymond, C.L.; Peterson, D.L.; Rochefort, R.M. (2013). The North Cascadia Adaptation Partnership: a science-management collaboration for responding to climate change. Sustainability. 5: 136–159., Peterson, D.L.; Halofsky, J.E. (2018). Adapting to the effects of climate change on natural resources in the Blue Mountains, USA. Climate Services. 10: 63–71. https://doi.org/10.1016/j.cliser.2017.06.005.