Dredged Material Management Program (DMMP) - Overview

Rock Island District
Published Oct. 1, 2021
Dredged Material Placement Below Lock & Dam 15

Dredged Material Placement Below Lock & Dam 15

Location

Rock Island District Illinois Waterway and Upper Mississippi Reaches

Description

The Dredged Material Management Program evaluates and identifies preferred alternative dredged material placement site(s) to accommodate the Corps’ dredging needs. DMMP planning efforts continue as current sites along the Mississippi River and Illinois Waterway have reached capacity. The Dredged Material Management Program ensures navigation vessels can safely commodities to ports within the United States and beyond.

Background

The Rock Island District has been developing plans and acquiring and implementing sites for the long-term placement of channel maintenance dredged material since the completion of GREAT II (Great River Environmental Action Team) studies in the early 1980s. Plans use a six-step planning process and, where applicable, a matrix with six evaluation criteria: dredging cost; natural, recreational, cultural resources; beneficial use of dredged material and social impacts.

Status
The Rock Island District is preparing long-term
(20-40 year capacity) Dredged Material Management Plans (DMMP) and acquiring and implementing sites for the placement of channel maintenance dredged material in support of the operation and maintenance of the Upper Mississippi and Illinois Waterway nine-foot navigation channels. The program ensures that all practicable and reasonable alternatives for the placement of dredged material are fully considered on an equal basis. This includes the placement of dredged material in the least costly manner, at the most practicable location, and consistent with engineering and environmental requirements.

Additional Information

Authority

OM - Operations and Maintenance Rivers and Harbors Acts of 1927, 1930, and 1935, in accordance with the Section 404 CWA & 33CFR, Parts 335-338

Summarized Project Costs

Estimated Federal Cost

N/A

Estimated Non-Federal Cost

N/A

Estimated Total Project Cost

N/A

Allocations Prior to FY 2022

$700K

FY 2021 Allocation

$700K

FY 2022 Allocation

TBD

FY 2022 President’s Budget

$368K

FY 2022 Total Capability

$1200K

 

Major Work Item Prior Fiscal Year

FY 2021:  The project moved forward with design and construction of two placement sites, completed acquisition for the Bulls Island placement site and initiated the Mackinaw River acquisition.

Major Work Item Current Year

FY 2022: If funded, work will proceed with updates to the Preliminary Assessments for the Illinois River and Mississippi River; Integration of Section 125 WRDA 2020; and completion of design for two placement sites.