Peoria Lock and Dam, located on the Illinois River in Tazewell, Illinois, plays a vital role in navigation, being a concrete structure completed in 1939 by the US Army Corps of Engineers.
Wind
Humidity
With a hydraulic height of 11 feet and a structural height of 23 feet, it facilitates river traffic through its single lock with dimensions of 600 feet in length and 110 feet in width. The dam's primary purpose is navigation, and it helps manage water levels along the river.
Despite being classified as having a significant hazard potential, a recent risk assessment by the US Army Corps of Engineers found that Peoria Lock and Dam is well-designed, well-constructed, and well-maintained. The risk assessment revealed that a dam failure would primarily impact river navigation upstream of the dam, with minimal to no downstream property damages expected. To mitigate risks, USACE conducts regular inspections, maintenance, and monitoring of the dam, as well as coordinating emergency response plans with state and local agencies.
In addition to ongoing risk management measures, USACE is actively engaging with stakeholders and the public to increase awareness about the dam's safety and emergency response plans. With a robust communication strategy based on the latest risk assessment findings, Peoria Lock and Dam remains a critical infrastructure for water resource management and climate resilience in the region.
Year Completed |
1939 |
Dam Length |
536 |
River Or Stream |
ILLINOIS RIVER |
Primary Dam Type |
Concrete |
Length Of Locks |
600 |
Hydraulic Height |
11 |
Drainage Area |
14544 |
Nid Storage |
225000 |
Structural Height |
23 |
Outlet Gates |
Needle - 108, Tainter (radial) - 1 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
23 |