C150347 Feasibility Study

• Contract/PO #: C150347
• Contractor Name: Greeley, City Of
• Contract Type: Loan
• Water District: 3
• County: Larimer
• Loan Projects - Doc Type: Feasibility Study

B. Emergency Treatment Objectives
LAND TREATMENTS
The objective of aerial mulching is to provide temporary ground cover and help reduce rainfall -
induced hill -slope erosion and associated flooding, sediment laden flows and /or debris flows within
the burned area. This treatment is recommended to:
• Lower the risk of post wildfire impacts to life /safety of residents, road users and recreational
users;
• Lower the risk of post wildfire impacts to private property, roads and water supply
infrastructure; and
• Lower the risk of post wildfire impacts to public drinking water quality.
The objective of noxious weed detection surreys and treatments is to provide for recovery of native
vegetation by preventing the establishment and spread of noxious weeds in the recently burned area.
ROAD AND TRAIL TREATMENTS
The purpose of road treatments is to reduce the risk of transportation system drainage failure which
could compromise ingress /egress, damage the road surface, increase erosion, sedimentation, and
cause downstream damage. Road treatments mitigate the fire's effect on the transportation
infrastructure and protect life, safety, property, and critical natural or cultural resources. These
treatments work in conjunction with land, channel, and protection /safety.
The objective of forest road and trail stabilization treatments on Forest Service lands is to lower the
risk of damage to property (system trails) by lowering erosion of the trail surface in severely burned
and steep areas within the burned area and to provide for public safety. The objective of temporary
closure of roads is to reduce risk to human life and safety.
PROTECTION / SAFETY TREATMENTS
Flood Warning Systems: The Poudre River watershed provides public water supply to the City of Fort
Collins, City of Greeley and the Tri- Districts which serves a range of unincorporated areas in the
front -range Larimer and Weld Counties. Use of existing flood warning systems provided by the
National Weather Service and the Larimer County Office of Emergency Services would notify water
providers that sediment laden floodwaters may be approaching. They can then make an informed
decision about whether to close intake head gates to avoid taking sediment laden water into their
systems.
Road Warning Signs: Warning signs will inform the public of the risks associated with travel within the
burn area that include excess stormwater runoff, possible high water or flash floods and debris that
may create a hazard along public roads. Warning signs will be installed along major public roads at
the edge of the burn area. Additional signs will be installed in high -risk areas. In these areas, access
may be cut -off by high water, debris, or other hazards.
Hazardous Tree Removal: The objective of the hazardous tree removal treatment is to lower threat
of hazardous trees to the life/safety of workers implementing BAER trail stabilization and storm patrol
treatments on the Mount McConnel, Kreutzer, Hewlett, and Young Gulch Trails.
Trail Warning Signs: The objective of installing warning signs is to reduce threats to life /safety of
recreational hikers by warning that they are entering a burned area and warning against access into
hazardous areas adjacent to the trails. These signs also serve too accelerate natural recovery by
preventing travel off trails. Additional signs to provide warning of increased potential for falling rock
and debris are also recommended to lower threats to human life /safety at specific locations along
trails within the burned area.
High Park Fire Emergency Stabilization Plan Page 16