SECTION 4: RISK ASSESSMENT
Condition as of Last Inspection
Max Capacity (Ac-Ft)
Dam Name
NID ID
Nearest River
Crossgate Dam #3 Hedingham Dam #2
NC05068 Fair
12
NC04927 Satisfactory
50 44 75
Longview Lake Dam Upper Springdale Estates Upper Dam Coachman Trail Lake Dam Upper Crabtree Creek WS Dam #11-A
NC04529 Fair
NC01665 NC04531 NC01720
Fair
Satisfactory Satisfactory
180
3327
Byrd Dam
NC04532 Not Rated NC04535 Satisfactory NC04536 Satisfactory
10 18
Hart-George Pond Dam
Crabtree Creek WS Dam #5-A
3010
Goodnight Dam Summer Lake Dam Meredith College Dam
NC04543
305
NC04545 Fair
18 34 30 76
NC04546 Satisfactory NC04547 Satisfactory
Underwood Dam
Bailey Dam
NC04563 Fair
Wake Forest Mason Lake Dam
NC00865 Fair NC04439 Poor
52 80
Lewis Dam
Wendell Timberlake Dam Zebulon Mitchell Lake Dam
NC05843 Fair
9999
NC00866 Fair
105
Source: North Carolina Dam Inventory, February 2024
Table 4.15 – High Hazard Dams Located within 5 Miles of Wake County
Condition as of Last Inspection Satisfactory Satisfactory
Max Capacity (Ac-Ft)
Dam Name
NID ID
Nearest River
Grove Park Dam
NC02323
302
Little Lick Creek
Ridgefield Subdivision SWDP Dam #14 NC05629
6
Chunky Pipe Creek
Gentz Dam
NC07014 NC01032 NC02571 NC02589 NC01003 NC01064
Bailey Lake Dam Lowery Dam Lambert Dam Lake Rogers Dam Moore Lake Dam
Fair Fair Fair
80 20
Little Lick Creek
Horse Creek
21
Press Prong Creek
Satisfactory
900 650
Ledge Creek Little River
Fair
Source: North Carolina Dam Inventory, February 2024
EXTENT Each state has definitions and methods to determine the hazard potential of a dam. In North Carolina, dams are regulated by the state if they are 25 feet or more in height and impound 50 acre-feet or more. Dams and impoundments smaller than that may fall under state regulation if it is determined that failure of the dam could result in loss of human life or significant damage to property. The height of a dam is from the highest point on the crest of the dam to the lowest point on the downstream toe, and the storage capacity is the volume impounded at the elevation of the highest point on the crest of the dam. Dam Safety Program engineers determine the "hazard potential" of a dam, meaning the probable damage that would occur if the structure failed, in terms of loss of human life and economic loss or environmental damage. Dams are assigned one of three classes based on the nature of their hazard potential:
• Class A (Low Hazard) includes dams located where failure may damage uninhabited low value
Wake County, NC Multi-Jurisdictional Hazard Mitigation Plan
WSP June 2024 Page 93
Made with FlippingBook interactive PDF creator