Mini-Cassia
Soil and Water Conservation Districts
East Cassia, Minidoka, and West Cassia Soil & Water Conservation Districts
Idaho Water is Worth Protecting!
Idaho has more than 3,500 miles of rivers famous for fishing and water sports. Idaho is an amazing place where water can be used and enjoyed. Aquatic invasive species (AIS) pose a serious threat to Idaho's valuable water resources. AIS clog and disrupt water delivery, interfere with power generation and recreation, and damage fisheries. It is every citizen’s responsibility to protect and safeguard our water by making prevention a priority.
Aquatic Invasive Species
Cotterell Inspection Station
The West Cassia Soil & Water Conservation District manages and operates the Aquatic Invasive Species Inspection Station located on I-84 Northbound. Station inspectors work diligently to ensure all watercraft entering Idaho are clean, drained, dry, and free of invasive species, including mussels, snails, clams, and aquatic vegetation.
The Cotterell Inspection Station operates 24 hours a day and requires dedicated staffing and strong collaboration with the Idaho State Police and the Idaho Transportation Department to maintain continuous operations and effective inspections.
West Cassia Soil & Water Conservation District supervisors recognize the importance of protecting Idaho’s waterways and remain committed to preserving natural resources through prevention, education, and conservation efforts.
Contact Invasive Species Program
General Questions
info@isda.idaho.gov or (208) 332-8500
Hot-Wash Information
1-877-336-8676
Quagga and Zebra Mussels
The Idaho State Department of Agriculture (ISDA) is specifically targeting the invasive Quagga and Zebra mussels, and has set up roadside inspection stations to keep them, and other aquatic invasive species out. These mussels present a significant threat to the waters of Idaho and the region due to their environmental and economic impact. It is estimated that if introduced to Idaho, these mussels would cost more that $94 million annually in direct and indirect impacts to infrastructure, facilities, agriculture, and recreation.
Idaho Resident Inspection Requirements
Any citizen traveling past a watercraft inspection station with a watercraft or conveyance MUST STOP.
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Watercraft includes but is not limited to boats, kayaks, paddleboards and other devices used in the water.
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Conveyances include but are not limited to duck decoys, waders, fishing tackle, life jackets and anything that has touched the water.
If a watercraft or conveyance (water-related equipment) has been in mussel infested water in the last 30 days, they are required to be inspected/decontaminated and must have proof that the inspection/decontamination has occurred.
Out Of State Inspection Requirements
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Before launching a conveyance in Idaho, a non-resident watercraft owner must also purchase an invasive species sticker.
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Any citizen traveling past a watercraft inspection station with a watercraft or coveyance MUST STOP.
Watercraft includes but in not liminted to boats, kayaks, paddleboards and other devices used in water.
Invasive Species Sticker Information
Idaho Invasive species stickers are required for all motorized and non-motorized vessels and that launch in Idaho.
*Before launching a conveyance in Idaho, a nonresident watercraft owner must also purchase an invasive species sticker.
Aquatic Invasive Species Watercraft Inspection Stations
Idaho’s Watercraft Inspection Program is the state’s first line of defense against aquatic invasive species (AIS). The overland transport of contaminated boats, trailers, and equipment is recognized as the leading pathway for the spread of invasive species between water bodies. To combat this threat, Idaho operates 22 roadside inspection stations at state borders and other key travel corridors, along with roving inspection crews that travel throughout the state during boating season. More than one million inspections have been conducted since the program began in 2009, intercepting hundreds of mussel-fouled watercraft before they could threaten Idaho waters.
Preventing the spread of aquatic invasive species protects Idaho’s lakes, rivers, reservoirs, irrigation systems, recreation opportunities, agriculture, fisheries, and native ecosystems. By stopping for inspections and practicing Clean, Drain, Dry, everyone plays a role in safeguarding Idaho’s water resources.
Some information for this page and the photo above taken from Idaho.maps.arcgis.comwebsite and /invasivespecies.idaho.gov/watercraft-inspection-stations/