Spring Mill
Spring Mill is an earth dam located in Lehigh County, Pennsylvania, built in 1900. It carries a Low hazard potential classification and has a fair condition assessment.
About Spring Mill
The primary purpose of Spring Mill is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Northampton Borough Municipal Water Authority (local government). It impounds the Spring Creek.
The dam stands 27 feet tall and stretches 235 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 269 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1900, the structure is over a century 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 01/23/2020.
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Location
| State | Pennsylvania |
| County | Lehigh |
| River/Stream | Spring Creek |
| Coordinates | 40.70000, -75.51833 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 235 ft |
| Year Completed | 1900 (126 years old) |
Storage & Hydraulics
| NID Storage | 269 acre-ft |
| Max Storage | 269 acre-ft |
| Normal Storage | 230 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 2 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | NORTHAMPTON BOROUGH MUNICIPAL WATER AUTHORITY |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 01/23/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | PA00785 |
| Federal ID | PA00785 |
| More Info | State Dam Safety Program |