Seph Mack is a state-owned earth dam located in Cherryhill Township, Indiana, Pennsylvania.
Wind
Humidity
Built in 1987 for recreational purposes, this dam stands at 21 feet in height and spans 305 feet in length, with a storage capacity of 15 acre-feet. Situated on the TR Yellow Creek, Seph Mack is regulated and permitted by the Pennsylvania Department of Environmental Protection, ensuring proper inspection and enforcement measures are in place to maintain its structural integrity.
With a significant hazard potential, Seph Mack has a condition assessment that is currently not rated, emphasizing the need for continued monitoring and maintenance. Although the dam's Emergency Action Plan (EAP) status and risk assessment details are unspecified, its inspection frequency of every 2 years reflects a commitment to ensuring the safety of the surrounding community and environment. With its tranquil 2-acre surface area serving as a recreational haven, Seph Mack is not only a vital water resource but also a site of natural beauty worth preserving for future generations to enjoy.
Year Completed |
1987 |
Dam Length |
305 |
Dam Height |
21 |
River Or Stream |
TR YELLOW CREEK |
Primary Dam Type |
Earth |
Surface Area |
2 |
Drainage Area |
0.18 |
Nid Storage |
15 |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
21 |
Yellow Creek Near Homer City
|
10cfs |
Two Lick Creek At Graceton
|
116cfs |
Blacklick Creek At Josephine
|
90cfs |
Conemaugh River At Seward
|
330cfs |
Crooked Creek At Idaho
|
43cfs |
Conemaugh River At Minersville
|
275cfs |