NormanAda
St. LouisOrr
WrightOtsego
LyonMarshall
OlmstedRochester
MarshallGatzke
2017-2018
CassCass Lake
CassChippewa NF
Otter TailOttertail
PopeStarbuck
NoblesWorthington
KoochichingBirchdale
GoodhueSogn
AitkinPliny
Blue EarthMadelia
MnDOT Home 
![LyonMarshall](javascript:PopPict("/research/seasonal_load_limits/thawindex/LyonCo_site.jpg", 720, 540, "Lyon County Instrumentation", "black")){kind=link}
![OlmstedRochester](javascript:PopPict("/research/seasonal_load_limits/thawindex/OlmstedCo_site.jpg", 720, 540, "Olmsted County Instrumentation", "black")){kind=link}
![Locations of Frost and Thaw Depth Monitoring Sites](javascript:PopPict("/research/seasonal_load_limits/thawindex/frost_monitoring_locations1.gif", 478, 476, "Frost and Thaw Depth Monitoring Sites", "white")){kind=link}