Spring Mill

SPRING CREEK· Lehigh, Pennsylvania· Built 1900· Earth· 27 ft tall
Low Hazard Water Supply Other Local Government

Key Takeaway

Spring Mill is classified as low hazard in Pennsylvania. It was completed in 1900 and is 126 years old. Its primary use is water supply.

Physical Details

Dam Height 27 ft (taller than 60.1% in PA)
Dam Length235 ft
Dam TypeEarth
Max Storage269 acre-ft
Normal Storage230 acre-ft
Surface Area10 acres
Drainage Area3 sq mi
Year Completed1900 (126 years old)
NID IDPA00785

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: No
Last Inspection: January 23, 2020
State Regulated: Yes
Regulatory Agency: Pennsylvania Department of Environmental Protection

Ownership

NORTHAMPTON BOROUGH MUNICIPAL WATER AUTHORITY

Local Government

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Frequently Asked Questions

What is the hazard classification of Spring Mill?

Spring Mill is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Spring Mill?

Spring Mill is owned by NORTHAMPTON BOROUGH MUNICIPAL WATER AUTHORITY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Spring Mill built?

Spring Mill was completed in 1900, making it 126 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

What is the primary purpose of Spring Mill?

Spring Mill serves the following purposes: Water Supply, Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Spring Mill?

Spring Mill has a dam height of 27 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.

When was Spring Mill last inspected?

Spring Mill was last inspected on January 23, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.