Dam No 1

BLUE RIVER-TR· Johnson, Kansas· Built 1965· Earth· 34 ft tall
Low Hazard Recreation Public Utility

Key Takeaway

Dam No 1 is classified as low hazard in Kansas. It was completed in 1965 and is 61 years old. Its primary use is recreation.

Physical Details

Dam Height 34 ft (taller than 84% in KS)
Dam Length700 ft
Dam TypeEarth
Max Storage300 acre-ft
Normal Storage157 acre-ft
Surface Area16 acres
Drainage Area2 sq mi
Year Completed1965 (61 years old)
NID IDKS01170

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: June 24, 1991
State Regulated: Yes
Regulatory Agency: KS Dept. of Agriculture

Ownership

DAVIS, W B & SYLVIA

Public Utility

Nearby Dams

Dam KS03926

Johnson, KS

Low Hazard 30 ft

Dam KS01168

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Low Hazard 35 ft

Dam KS01173

Johnson, KS

Low Hazard 40 ft

Kingston Lakes

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Low Hazard 20 ft

Dam KS04497

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Low Hazard 25 ft

Dam KS03928

Johnson, KS

Low Hazard 20 ft

Dam KS03917

Johnson, KS

Significant Hazard 22 ft

Private Dam

Johnson, KS

Significant Hazard 13 ft

Frequently Asked Questions

What is the hazard classification of Dam No 1?

Dam No 1 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 Dam No 1?

Dam No 1 is owned by DAVIS, W B & SYLVIA (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Dam No 1 built?

Dam No 1 was completed in 1965, making it 61 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 Dam No 1?

Dam No 1 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 Dam No 1?

Dam No 1 has a dam height of 34 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 Dam No 1 last inspected?

Dam No 1 was last inspected on June 24, 1991. 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.