checking in from a twitter break…was looking at the rain that caused the awful flash flood in the Poudre Canyon on Tues. Nearly 2" in 2 hours at that elevation (9500+ ft) is really unusual, and happened in about the worst possible location with respect to the burn scar 1/ #cowx pic.twitter.com/lMIbeIJTNh
— Russ Schumacher (@russ_schumacher) July 23, 2021
From The Fort Collins Coloradoan (Miles Blumhardt):
Two Larimer County floods in July caused $2 million in damages to roads and other infrastructure and prompted a report that concluded the risk to residents of Black Hollow from another flood is too great for them to stay overnight in their homes.
Lori Hodges, the county’s director of Emergency Management, said most of the damage to county roads and culverts has occurred in Buckhorn Canyon west of Fort Collins and the Retreat area just east of Glen Haven. About 6 miles of the newly rebuilt Buckhorn Road from the 2013 flood sustained damage.
Because of the ongoing risk of another flood in the Cameron Peak Fire burn scar, the county will take a wait-and-see approach to rebuilding the roads and replacing culverts, she said, which were damaged during July 20 and July 30 flash floods.
“We have a few more weeks to get through the monsoon season, and so we will have to figure out the best way to rebuild to better be able to withstand more flooding,” she said.
She said a Colorado Geologic Survey assessment of the Black Hollow neighborhood in the upper Poudre Canyon stated the danger from the instability of the area is so great that no one should spend the night.