SECTION 7: MITIGATION ACTION PLANS
Table 7.2 – Mitigation Action Plan, City of Raleigh
City of Raleigh
Potential Funding Sources
Action #
Hazard(s) Addressed
Relative Priority
Lead Agency/ Department
Estimated Cost
Implementation Schedule
2024 Status
Description
Goal Objective
Status Comments/Explanation
Prevention
Develop ongoing multi-year program of detailed basin studies for each watershed in City’s jurisdiction. Fifteen basin studies are complete with 10 additional studies budgeted in the capital program. (CRS 410). Update and maintain GIS data of building footprints, parcels, and critical facilities, and use it to regularly identify buildings in need of mitigation. Develop a local floodplain mapping program to produce regular mapping updates to flood hazard maps. Continue active lake level management activities at Lake Johnson to reduce flood risk to downstream Walnut Creek properties during storm events. Proactively review dam emergency action plans and condition with property owners as part of the City's dam public education and outreach program. Develop ongoing program designed to utilize grant resources to assist private property owners in acquiring, relocating, elevating, or floodproofing existing structures located in flood hazard zones
In- Progress – Carry Forward
Raleigh Engineering Services
The detailed basin study program has been established but the studies themselves will be ongoing. The City is conducting approximately 3 basin studies per year.
$100,000 - $1m
P-1
2
2
Flood
Moderate
Local
1 year
Raleigh Information Technology, GIS staff
In- Progress – Carry Forward
Currently, critical facilities aren't maintained and/or integrated with the Enterprise GIS System, taken as an action item to further develop layers/datasets. The City is continuing to gather information on how data produced through ongoing detailed basin studies can be used for mapping updates, outlining criteria for where and how often mapping updates will be conducted, and evaluating potential budgetary and resource needs. Staff uses a web-based software to remotely control the actuators, valves and gates at Lake Johnson. This allows us to remotely lower the lake prior to large storm events which gives us more storage in the lake to capture runoff during storm events and help reduce flooding downstream. We will be looking at adding this type of system to other Lakes and SCMs in the area over the next few year.
Ongoing - Next 5 years
P-2
2
2
All
Moderate
Staff time
Local
Raleigh Engineering Services
$100,000- $1m
Local, Federal
Ongoing - Next 5 years
P-3
2
2
Flood
Moderate
New
Raleigh Engineering Services
Flood, Hurricane
Less than $100,000
Ongoing - Next 5 years
P-4
3
2
Moderate
Local
New
Raleigh Engineering Services
$100,000 and staff time
Flood, Hurricane
Ongoing - Next 5 years
P-5
1
2
Moderate
Local
New
N/A
Property Protection
In- Progress – Carry Forward
The City has established a Floodplain Management team to manage mitigation projects going forward. A prioritization model has also been developed to score and evaluate potential mitigation properties.
Raleigh Engineering Services
$100,000 - $1m
Local, Federal
PP-1
3
2
Flood
Moderate
3-5 years
Wake County, NC Multi-Jurisdictional Hazard Mitigation Plan
WSP June 2024 Page 299
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