Grand Rapids Dam Reservoir Report
Nearby: Providence Dam Mcclure Wwt Lagoon
Last Updated: December 26, 2025
The Grand Rapids Dam, located on the Maumee River in Ohio, was completed in 1907 and serves as a recreational site for water resource and climate enthusiasts.
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Summary
Owned by the state and regulated by the Department of Natural Resources, this gravity dam stands at a height of 8 feet and stretches 642 feet in length. With a storage capacity of 8,925 acre-feet and a surface area of 1,785 acres, the dam plays a crucial role in managing water resources in the region.
Despite its age, the Grand Rapids Dam is in fair condition with a high hazard potential. Regular inspections are conducted every five years to ensure the dam's structural integrity and safety. The emergency action plan for the dam was last revised in April 2019, indicating a proactive approach to risk management. With its historical significance and recreational value, the Grand Rapids Dam continues to be a vital asset for the community and a subject of interest for water resource and climate enthusiasts.
As one of the few gravity dams in the area, the Grand Rapids Dam not only provides recreational opportunities but also contributes to flood control and water resource management. Its location on the Maumee River in Wood County, Ohio, makes it a key structure in the region's infrastructure. With ongoing inspections and maintenance efforts, the dam remains a symbol of resilience and a focal point for those interested in water resource conservation and climate adaptation.
Year Completed |
1907 |
Dam Length |
642 |
Dam Height |
8 |
River Or Stream |
MAUMEE RIVER |
Primary Dam Type |
Gravity |
Surface Area |
1785 |
Drainage Area |
6058 |
Nid Storage |
8925 |
Hazard Potential |
High |
Nid Height |
8 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Grand Rapids Dam