Presentation from 2018. Old logo. Same concept
Author Archives: Sustainable Watershed Design
1D HEC-RAS compared with 2D HEC-RAS
1 dimensional modeling for FEMA floodplains vs 2 dimensional modeling for FEMA floodplains. My stance is until the floodplain administrators have the technical knowledge and or resources to review 2D models its not doing anyone any favors. Some agree and some do not. I have seen more and more 2D models using quais steady stateContinue reading “1D HEC-RAS compared with 2D HEC-RAS”
Resilience planning starts before the next fire or flood
There is no such thing as channel stability except on a temporary basis. This is Left Hand Creek diversion structure after the 2013 flood on the Colorado Front Range north of Boulder, Colorado. What we learned, and seem to have forgotten or blocked from memory, is the river finds a way. Rivers move. Mountain riversContinue reading “Resilience planning starts before the next fire or flood”
Challenges using rain on grid modeling in the mountains of Colorado
Reach out if you would like to hear this presentation. We can schedule a time.
Trauma and Recovery
This is a paper I worked with a trauma therapist to create for people affected by floods and the flood recovery work. I saw many trauma reactions when working with stakeholders after the 2013 Front Range floods. There are simple treatments that a therapist with training can help with. I do not want to recommendContinue reading “Trauma and Recovery”
Chaffe County Land Use Code Changes – Proposal for Riparian Protection
A primer on Fluvial Hazard Zone Mapping with LiDAR data
The is a very technical post. This is a primer to discuss how LiDAR data is collected, filtered and manipulated to create digital elevation models (DEM) and how those DEMs might be used to identify fluvial geomorphic signatures that indicate where a flood hazard might exist. LiDAR data is commonly used in geomorphic analysis, hydraulicContinue reading “A primer on Fluvial Hazard Zone Mapping with LiDAR data”
February 18, 2023 NRCS Data collection and Snow Water Equivalent
The Snow Water Equivalent (SWE) is not as optimistic as some would hope. Below is a screen shot taken from the NRCS interactive website. The color-coded points are the locations the SWE is measured. The percent value is compared with the peak based on the median peak which is calculated for the period of record.Continue reading “February 18, 2023 NRCS Data collection and Snow Water Equivalent”
