ANNEX D: TOWN OF CARY
D.5 MITIGATION STRATEGY
Town of Cary
Hazard(s) Addressed
Relative Priority
Lead Agency/ Department
Potential Funding Sources
Implementation Schedule
Action #
Description
Goal Objective
Estimated Cost
2019 Status
Status Comments/Explanation
Prevention
Town’s Comprehensive Plan - The Town has an existing comprehensive plan which includes land use, parks and recreation, open space, transportation, utilities, and environment.
$1M for plan development; implementation ongoing
Cary's comprehensive plan, called alternately the Cary Community Plan and the Imagine Cary Plan was finalized on January 24, 2017. Implementation in-process. Multi-pronged approach including 5 key components: 1) Working Group of residents and local experts to learn and advise 2) Maintenance, including Condition Assessment (a separately listed "action") 3) Open Space, examining how open space and tree canopy provide stormwater benefits 4) Model, hiring a firm to build a hynamic rainfall-runoff model to establish a baseline and test solutions and scenarios 5) Ordinance, looking at the stormwater ordinance as a way to achieve our risk mitigation goals In phase 4, (1-GIS Assessment Tool, 2-GIS Mapping Data and assessment, 3-Modeling, 4-Maintenance) Assessment Tool completed. GIS Mapping 99% completed.
In-Progress – Carry Forward
P-1
4
2
All
High
Cary Planning
General Fund
2-3 years
General Fund and $300K Grant
P-2
Adaptive Approach to Stormwater
4
1
Flood
High
Cary Stormwater
$900,000
Ongoing
New
P-3
Stormwater Condition Assessment Program
4
2
Flood
High
Cary Stormwater
$750,000
General Fund
2-3 years
New
P-4
Develop flood model for upper Swift Creek watershed
2
2
Flood, Hurricane
High
Cary Stormwater
Unknown
Town Funds
1 year
New
N/A
P-5
Develop flood model for Symphony Lake
2
2
Flood, Hurricane
High
Cary Stormwater
Unknown
Town Funds
2-3 years
New
N/A
P-6
Engineering evaluation of Tryon Road dam
2
2
Dam Failure
Moderate
Cary Stormwater
Unknown
Town Funds
3-5 years
New
N/A
Conduct study and develop improvement plan for Twin Lakes dam Conduct flood study on Town-owned lake/dam, including breach analysis
P-7
2
2
Dam Failure
High
Cary Stormwater
Unknown
Town Funds
3-5 years
New
N/A
River Flooding, Dam Failure
P-8
2
2
High
Cary Stormwater
Unknown
Town Funds
2-3 years
New
N/A
On-going partnership among Triangle area jurisdictions intended to do joint resilience planning and action. The group's first deliverable of a Triangle Regional Resilience Assessment was finalized late 2018. The group is continuing to meet and consider how it may implement recommendations of the assessment together.
Variable (depending on outside consultants)
River Flooding, Wildfire, Drought, Extreme Heat
P-9
Triangle Regional Resiliency Partnership
4
1
Moderate
Town of Cary
General Funds
Ongoing
New
Property Protection
PP-1
Culvert Replacement - Arbor Brook
3
2
Flood
High
Cary Stormwater
$400,000
General Fund
1 year
New
Replace existing culverts with larger culverts
PP-2
Culvert Replacement - Two Creeks
3
2
Flood
High
Cary Stormwater
$800,000
General Fund
1 year
New
Replace existing culverts with larger culverts
Natural Resource Protection
In planning phase. Implementing SW management above and beyond state requirements. Detention of 2, 5 and 10-year storm reduces scour on receiving stream. Extra 50-foot buffer (UTB) on USGS streams; no buffers platted in lots.
Cary Stormwater and Facilities
NRP-1 Downtown Park
3
2
Flood
High
$750,000
General Fund
2-3 years
New
Private (Developer) Funds
Cary Stormwater and Cary Planning
Over $10,000,000
Ongoing - Next 5 Years
NRP-2 Buffer and UTB Protection
3
2
Flood
High
New
Structural Projects
SP-1
Infrastructure improvements on Summer Lakes Dr.
3
2
Flood
High
Cary Stormwater
$900,000
General Fund
1 year
New
Replace existing undersized culverts
SP-2
Infrastructure improvements on Vincrest Ct
3
2
Flood
High
Cary Stormwater
$400,000
General Fund
2-3 years
New
Replace existing undersized culverts
SP-3
Update Water Shortage Response Plan
2
4
Drought
High
Town of Cary
Staff Time
N/A
1 year
New
N/A
Wake County Multi-Jurisdictional Hazard Mitigation Plan 2019
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