Silver Lake Dam

TR-MAQUOKETA RIVER· Delaware, Iowa· Built 1948· Earth· 25 ft tall
Low Hazard Recreation Local Government

Key Takeaway

Silver Lake Dam is classified as low hazard in Iowa. It was completed in 1948 and is 78 years old. Its primary use is recreation.

Physical Details

Dam Height 25 ft (taller than 19.3% in IA)
Dam Length200 ft
Dam TypeEarth
Max Storage415 acre-ft
Normal Storage210 acre-ft
Surface Area39 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1948 (78 years old)
Year Modified2007
NID IDIA02035

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
State Regulated: Yes
Regulatory Agency: IOWA DNR

Ownership

Delaware County Conservation Board

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Silver Lake Dam?

Silver Lake Dam 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 Silver Lake Dam?

Silver Lake Dam is owned by Delaware County Conservation Board (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Silver Lake Dam built?

Silver Lake Dam was completed in 1948, making it 78 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 Silver Lake Dam?

Silver Lake Dam 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 Silver Lake Dam?

Silver Lake Dam has a dam height of 25 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.

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.