Us 77 Roadfill Dam Reservoir Report

Last Updated: December 13, 2025

The Us 77 Roadfill Dam, also known as Ksnoname 1364, is a state-owned structure located in Marshall County, Kansas.


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Summary

Built in 1960, this earth dam stands at a height of 49 feet and has a storage capacity of 878 acre-feet. The primary purpose of the dam is for fire protection, stock, small fish pond, and other uses, with a normal storage level of 93.5 acre-feet and a surface area of 10.3 acres.

Managed by the Kansas Department of Agriculture, the Us 77 Roadfill Dam is regulated, permitted, inspected, and enforced by the state, ensuring its safety and compliance with regulations. The dam poses a high hazard potential due to its location along the Big Blue River and has been assessed to be in fair condition. Despite its age, the dam continues to serve its intended purposes effectively and remains a vital water resource in the region.

With its strategic location in Blue Rapids and its important role in water management and conservation, the Us 77 Roadfill Dam stands as a testament to the state's commitment to ensuring the safety and sustainability of its water resources. Climate and water enthusiasts can appreciate the engineering and regulatory efforts that have gone into maintaining this crucial infrastructure, which plays a key role in protecting communities and ecosystems along the Big Blue River.

Year Completed

1960

Dam Height

49

River Or Stream

BIG BLUE RIVER-TR

Primary Dam Type

Earth

Surface Area

10.3

Hydraulic Height

20

Drainage Area

0.77

Nid Storage

878

Structural Height

49

Outlet Gates

None

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

49
       
Seasonal Comparison

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Dam Data Reference

Condition Assessment

Satisfactory
No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.

Hazard Potential Classification

High
Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.