Marseilles Lock And Dam

Significant HazardNot Available ConditionEmergency Action Plan: Yes

Location

StateIllinois
CountyLaSalle
Nearest CityOTTAWA
River/StreamILLINOIS RIVER
Coordinates41.32296, -88.70856

Physical Characteristics

Dam TypeConcrete
NID Height58 ft
Dam Length2,078 ft
Year Completed1933 (93 years old)

Storage & Hydraulics

NID Storage14,000 acre-ft
Max Storage14,000 acre-ft
Drainage Area8,259 sq mi
Max Discharge137,000 cfs
Spillway TypeNone

Ownership & Safety

PurposeNavigation
OwnerUSACE - Rock Island District
Owner TypeFederal
Hazard ClassificationSignificant
Condition AssessmentNot Available
Last Inspection06/21/2023
Emergency Action PlanYes

Identifiers

NID IDIL00003
Federal IDIL00003
More InfoState Dam Safety Program

Nearby Dams

Marseilles Power Canal Dam 0.4 mi Low Bazzoni Lake Dam 0.9 mi Low Sabic Basins Dam 2.5 mi Significant Saddlewood Estates Dam 2.7 mi Low Lasalle Co. Nuclear Station Cooling Lake Dam 5.1 mi High Dayton 6.2 mi Low Dayton Estates Dam 6.5 mi High Northern White Sands Dam 13.2 mi High Starved Rock Lock And Dam 14.4 mi Significant Hickory Lake Dam 14.8 mi Low