Calvert Gateway

Hall Creek-TR· Calvert, Maryland· Built 2000· Earth· 16 ft tall

Significant Hazard Recreation Private

Key Takeaway

Calvert Gateway is classified as significant hazard in Maryland. It was completed in 2000 and is 26 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height	16 ft (taller than 29.7% in MD)
Dam Length	200 ft
Dam Type	Earth
Max Storage	4 acre-ft
Normal Storage	1 acre-ft

Surface Area	1 acres
Drainage Area	0 sq mi
Max Discharge	367 cfs
Year Completed	2000 (26 years old)
Year Modified	2000
NID ID	MD00356

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

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

Emergency Action Plan: Yes

Last Inspection: July 22, 2020

State Regulated: Yes

Regulatory Agency: MD Dam Safety

Ownership

Penwick Village Ltd Partnership

Private

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Frequently Asked Questions

What is the hazard classification of Calvert Gateway?

Calvert Gateway is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Calvert Gateway?

Calvert Gateway is owned by Penwick Village Ltd Partnership (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Calvert Gateway built?

Calvert Gateway was completed in 2000, making it 26 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 Calvert Gateway?

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

How tall is Calvert Gateway?

Calvert Gateway has a dam height of 16 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 Calvert Gateway last inspected?

Calvert Gateway was last inspected on July 22, 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.