2018 Survey Files
2006 Flood Washout
Site Conditions Documentation
Little Tonsina Discharge Data, 2014-2017, BLM (DRAFT) Data within spreadsheet are images of the daily discharges and do not contain all the raw data, corrections, formulas, etc. used to calculate the final numbers. For more information or questions on this data, contact Mike Sondergaard, BLM Glennallen Field Office Hydrologist, (907)822-7314, firstname.lastname@example.org.
Habitat Data collected by CRWP as part of watershed-wide Culvert Prioritization Effort: Select “Burma Road” in drop-down menu and select culvert ID 20103476 from the list to the right. Habitat measurements collected using methods developed in partnership with USFWS, ADFG, BLM, ADOT/PF and USFS.
Culvert Data collected by CRWP. Culvert data collected using ADFG data collection methods.
Aerial Image of Little Tonsina, 2017
Aerial Image of Little Tonsina, 2017 Illustrates downstream channel re-route to accommodate construction of Richardson Highway (Google Earth)
USFWS Estimated Upstream Habitat , 45 miles
The estimated length of habitat upstream of the culvert was measured in GIS using the existing streamlines found in the National Hydrography Dataset and U.S. Geological Survey 7.5-minutes quadrangle topographic maps. Streamlines upstream of the culvert site were included until the stream ended, or stream slop exceeded 12% as measured manually from topographic maps, which was considered the upper limit for salmon. Click image to open larger file size.
Concept Design and Hydrology Documentation
Planning Team Discussion Notes
Project Contact List
Click here to download most recent contact list (updated May 2020). To add additional contacts, please contact email@example.com