Pennsylvania Glass Sand Corp
Pennsylvania Glass Sand Corp is an earth dam located in Johnston County, Oklahoma, built in 1983. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Pennsylvania Glass Sand Corp
Pennsylvania Glass Sand Corp is a dam in Johnston, Oklahoma. The dam is owned by Us Silica (private). It impounds the Tr-mill Cr.
The dam stands 48 feet tall, creates a reservoir covering 750 acres, and has a maximum storage capacity of 1,550 acre-feet. Completed in 1983, the structure is 43 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 12/03/2015. That was over 10 years ago.
At 48 feet, this dam is taller than 92% of dams nationwide.
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Location
| State | Oklahoma |
| County | Johnston |
| River/Stream | Tr-mill Cr |
| Coordinates | 34.46598, -96.85754 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 48 ft |
| Dam Height | 48 ft |
| Year Completed | 1983 (43 years old) |
Storage & Hydraulics
| NID Storage | 1,550 acre-ft |
| Max Storage | 1,550 acre-ft |
| Normal Storage | 1,200 acre-ft |
| Surface Area | 750 acres |
| Max Discharge | 340 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Other |
| Owner | US SILICA |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 12/03/2015 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK21616 |
| Federal ID | OK21616 |
| More Info | State Dam Safety Program |