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0 NCSCO—ELF (GP-00_•—MIS) This general permit authorizes the above activities provided the activity is regulated and approved under appropriate state laws and rules. h. Fish_ Barriers — Structures or clean fills used to impede the movements of rough fish for fisheries management purposes. The barrier must not significantly impede the flow of water and must be regulated and approved under appropriate state laws and rules. i. Cofferdams and Caissons — Temporary structures or fills used to de — water construction sites. The cofferdam or caisson must be removed in its entirety at the earliest possible date. The cofferdam or caisson must be regulated and approved under appropriate state laws and rules, including those by the Minnesota Pollution Control Agency (MPCA). j. DredRinsi — The removal by suction, scooping or scraping devices, of materials below the ordinary high—water mark of navigable waters of the United States. For this general permit to apply, the following special conditions must be met (also see special condition q on page 3A: 1. All dredged material must be placed in an upland location. Z. Total dredged amounts must not exceed 3,000 cubic yards. Piecemealing of projects is not permitted. 3. Dredging must not occur in an area of concentrated shellfish production or in a designated spawning area. 4. If hydraulic dredging methods are used, approval must be obtained from the Minnesota Pollution Control Agency for the return flow. 5. The dredging must be regulated and approved under appropriate state laws and rules. k. Channel Connections — The connection, of any waterbody (natural or man— made) to a navigable water of the United States for private recreational access from riparian properties only, provided the connection would not result in the drainage or filling of any wetland area. The connection must be regulated and approved under appropriate state laws and rules. 1. Wing Dams and Deflectors — Structures or fills designed to divert the flow of a stream to maintain a stream channel with desired depth, or reduce erosion and/or sedimentation. The structure or fill must not present a. hazard to commercial and recreational navigation. Water must flow over the top of the structure or fill at above normal water levels. The structure or fell must be regulated and approved under appropriate state laws and rules.