Hambaugh- Martin Ws Str 4 Reservoir Report
Last Updated: December 20, 2025
Hambaugh-Martin WS Str 4 is a key water structure located in Meredosia, Illinois, designed by the USDA NRCS and owned by the local government.
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Summary
Completed in 1961, this earth dam stands at 26 feet high with a length of 253 feet, serving primarily for flood risk reduction. With a storage capacity of 55 acre-feet and a drainage area of 0.25 square miles, this structure plays a crucial role in managing water resources in the area.
The dam is regulated by the Illinois Department of Natural Resources and undergoes regular inspections by the Natural Resources Conservation Service. Despite being classified as low hazard potential, the structure has a moderate risk rating, emphasizing the importance of continued monitoring and maintenance. The spillway, with a width of 20 feet, is uncontrolled, and the outlet gates operate in a similar manner. Overall, Hambaugh-Martin WS Str 4 serves as a vital component in the region's water management system, contributing to flood control and ensuring the safety of surrounding communities.
As water resource and climate enthusiasts, understanding the intricate details of structures like Hambaugh-Martin WS Str 4 is crucial for grasping the complexities of water management. With a focus on flood risk reduction and a history dating back to the early 1960s, this earth dam stands as a testament to the collaborative efforts between local government and federal agencies in safeguarding communities from potential water-related disasters. By staying informed about the design, purpose, and ongoing maintenance of such structures, enthusiasts can appreciate the vital role they play in shaping the resilience of our water infrastructure in the face of changing climate patterns.
Year Completed |
1961 |
Dam Length |
253 |
Dam Height |
26 |
River Or Stream |
TR- ILL RIVER W |
Primary Dam Type |
Earth |
Surface Area |
3 |
Drainage Area |
0.25 |
Nid Storage |
55 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
26 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
La Moine River At Ripley
|
33cfs |
Illinois River At Valley City
|
2970cfs |
Bay Creek At Pittsfield
|
43cfs |
La Moine River At Colmar
|
17cfs |
Sangamon River Near Oakford
|
356cfs |
Bear Creek Near Marcelline
|
5cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Hambaugh- Martin Ws Str 4