Hamilton Street

LEHIGH RIVER· Lehigh, Pennsylvania· Built 1983· Concrete· 14 ft tall
Low Hazard Recreation Water Supply Local Government

Key Takeaway

Hamilton Street is classified as low hazard in Pennsylvania. It was completed in 1983 and is 43 years old. Its primary use is recreation.

Physical Details

Dam Height 14 ft (taller than 23.9% in PA)
Dam Length490 ft
Dam TypeConcrete
Max Storage50 acre-ft
Normal Storage50 acre-ft
Drainage Area1,370 sq mi
Year Completed1983 (43 years old)
NID IDPA00951

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: March 11, 2021
State Regulated: Yes
Regulatory Agency: Pennsylvania Department of Environmental Protection

Ownership

CITY OF ALLENTOWN

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Hamilton Street?

Hamilton Street 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 Hamilton Street?

Hamilton Street is owned by CITY OF ALLENTOWN (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Hamilton Street built?

Hamilton Street was completed in 1983, making it 43 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 Hamilton Street?

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

How tall is Hamilton Street?

Hamilton Street has a dam height of 14 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 Hamilton Street last inspected?

Hamilton Street was last inspected on March 11, 2021. 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.