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Regulatory Office/ Permits

Regulatory Office/ Permits

Regulatory Office/ Permits

Regulatory Office/ Permits

Regulatory Office/ Permits

Regulatory Office/ Permits

  • NWO-2021-01478-DEN

    Expiration date: 9/25/2021

    The proposed project will consist of channel reshaping, installation of 15 in-stream boulder cascade drop structures, installation of bank protection material, and maintenance to existing outfalls.

  • NWO-2014-00522-WEH

    Expiration date: 9/22/2021

    Lyman-Richey Corporation (LRC) is proposing to expand and continue to mine sand and gravel at Pit 71 in the Timber Lake/Treadway area. LRC is proposing to mine the 130-acre site in three phases over 17 years. Phase 1, the first five years of mining, would occur in the southeast portion of the parcel, closest to the existing mining operations. Phase 2, years 6 through 10, would continue mining to the west and north of Phase 1. Phase 3, years 11 through 17, would extend west of Phase 2 and mine the remainder of the parcel area. Over 17 years and 3 phases of development, Timber Lake/Treadway would impact a total of 10.81 acres of wetlands.

  • NWO-2015-01703-PIE

    Expiration date: 9/24/2021

    Sioux Falls Development Foundation requests Department of the Army authorization to place fill in a wetland tributary to the Big Sioux River in order to develop an industrial park. The fill in the wetland will be necessary to construct a rail spur, install a stormwater management detention pond as well as grade the parcel for efficient use of the site. A total of 1.473 acres of wetland fill is proposed. The proposed project is located in the southwest quarter of Section 13, Township 102 North, Range 50 West, Minnehaha County, South Dakota.

  • NWO-1985-08045-PIE

    Expiration date: 9/21/2021

    L.G. Everist, Inc. requests authorization to expand operations at its quarry located southeast of Dell Rapids, South Dakota. The existing quarry is situated on the right bank (north side) of the Big Sioux River. Mining operations would be expanded eastward from the existing quarry and an earthen berm would be constructed around the expansion to protect operations from flooding. This would allow for the expansion of the pit and mine where the current plant is located. The proposed expansion would impact two existing tributaries of the Big Sioux River and adjacent wetlands. A new channel would be constructed to route flow around the new berm and expansion. This channel would parallel the new berm and would discharge into the Big Sioux River approximately 1,480 feet upstream of the original discharge point. The existing tributaries and wetlands would be filled or excavated to accommodate the expansion. Approximately 1.58 acres of wetlands would be impacted by the project. The Dell Rapids East Quarry Expansion Project is located directly east of the existing quarry in Sections 10 and 11, Township 104 North, Range 49 West, Minnehaha County, South Dakota.

  • NWO-2019-01701-PIE

    Expiration date: 9/19/2021

    Merkle Property Umbrella Bank Prospectus and Merkle Property Site Plan proposes to establish and operate an umbrella mitigation bank (Mitigation Site) in the lower Big Sioux River geographic service area. The proposed Mitigation Site is located on a 152-acre parcel of land owned by the Sponsor. If approved, the Sponsor would develop two discrete wetland mitigation banks within the overall Mitigation Site. Each wetland mitigation bank would be developed and operated independently of each other. The proposed Mitigation Site is in Section 8, Township 99 North, Range 50 West, Lincoln County, South Dakota.