Bloomer Dam Reservoir Report
Nearby: Gerot Dam Skubal Dam
Last Updated: December 13, 2025
Bloomer Dam, located in Columbus Junction, Iowa, along Goose Creek, is a privately owned structure with a primary purpose of fire protection and serving as a stock or small fish pond.
°F
°F
mph
Wind
%
Humidity
Summary
Constructed in 1972 by the USDA NRCS, this earth dam stands at a height of 25 feet and has a length of 371 feet, providing a storage capacity of 50 acre-feet. With a low hazard potential and a moderate risk assessment, the dam is state regulated by the Iowa DNR and undergoes regular inspections, permitting, and enforcement to ensure its safety and functionality.
Despite its relatively small size and low hazard potential, Bloomer Dam plays a crucial role in water resource management in the region. The dam's presence helps in fire protection and serves as a water source for livestock and fish, contributing to the overall ecological balance of the area. With a surface area of 2.8 acres and a drainage area of 0.09 square miles, the dam has a normal storage capacity of 25 acre-feet, providing a reliable water source for various purposes in the vicinity.
As a part of the Rock Island District in Iowa, Bloomer Dam represents a significant engineering feat that combines both functionality and environmental conservation. With its uncontrolled spillway type and soil foundation, the dam has been a vital component of the local water infrastructure for almost five decades. Its risk assessment as moderate underscores the importance of continued monitoring and maintenance to ensure its resilience in the face of climate change and evolving water resource management challenges.
Year Completed |
1972 |
Dam Length |
371 |
Dam Height |
25 |
River Or Stream |
GOOSE CREEK |
Primary Dam Type |
Earth |
Surface Area |
2.8 |
Drainage Area |
0.09 |
Nid Storage |
50 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Iowa River Near Lone Tree
|
942cfs |
Cedar River Near Conesville
|
2400cfs |
English River At Kalona
|
41cfs |
Old Mans Creek Near Iowa City
|
24cfs |
Iowa River At Iowa City
|
722cfs |
Iowa River At Wapello
|
3760cfs |
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.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
River Junction Access
|
||
Marr Park
|
||
Louisa County Fairgrounds
|
||
Hills Access
|
Bloomer Dam
Vine Avenue Washington County