Blackfoot Bridge Wmp #1 & #2 Reservoir Report

Last Updated: December 18, 2025

Blackfoot Bridge Wmp #1 & #2, also known as Water Management Pond Cell No 1 & 2, are privately owned water management structures located in Caribou, Idaho.


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Summary

These ponds, completed in 2012, were designed to serve various purposes related to water resource management in the area. The dams are primarily constructed with stone cores and supported by rock and soil foundations, standing at a height of 35 feet with a hydraulic height of 32 feet.

The Blackfoot Bridge Wmp #1 & #2 have a combined storage capacity of 606 acre-feet and cover a surface area of 75 acres. These water management ponds are regulated by the Idaho Department of Water Resources, which oversees their permitting, inspection, and enforcement processes. Despite being categorized as having a significant hazard potential, the dams are reported to be in satisfactory condition as of the last assessment in November 2019.

Located along the Blackfoot River and Blackfoot Reservoir, these structures play a crucial role in managing water resources in the region. With their high risk assessment rating, it is important for stakeholders and authorities to stay vigilant in monitoring and maintaining the Blackfoot Bridge Wmp #1 & #2 to ensure the safety and sustainability of water management in Caribou, Idaho.

Year Completed

2012

Dam Height

35

River Or Stream

BLACKFOOT RIVER BLACKFOOT RESERVOIR

Surface Area

75

Hydraulic Height

32

Nid Storage

606

Outlet Gates

None

Hazard Potential

Significant

Foundations

Rock, Soil

Nid Height

35
       
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.