Cedar River, Cedar Rapids, Iowa -- Flood Risk Management

Rock Island District
Published Oct. 1, 2021
Downtown Cedar Rapids, Iowa, on June 13, 2008 during flood crest.

Downtown Cedar Rapids, Iowa, on June 13, 2008 during flood crest.

Cedar Rapids Flood Risk Management Project - 16th Ave. Closure

Cedar Rapids Flood Risk Management Project - 16th Ave. Closure

Location

Cedar River, Cedar Rapids, Iowa

Description

In June 2008, the City of Cedar Rapids (City), Iowa, was devastated by a flood of record proportions. More than 1,300 city blocks of the City were flooded. The floodwaters covered 10 square miles and caused an estimated $2.4 billion in damages.

On April 5, 2006, Congress authorized a feasibility study. The Feasibility Cost Share Agreement was signed on May 30, 2008. The damaged property inventory for this Feasibility Study counted 7,846 properties damaged by the flood. This included 6,865 residential properties, 754 commercial/industrial properties and 227 public properties. The damaged public properties included the City Water Pollution Control Facility, police station, potable water wells, wastewater collection system, City Hall, Linn County Correctional Center, and Linn County Courthouse, along with many other critical infrastructure elements.

The Feasibility Report presented several alternatives as Flood Risk Management strategies of which one was recommended as the National Economic Development (NED) Plan - Alternative 4-C. Alternative 4-C provides protection along the east bank of the Cedar River. It includes earthen levees, floodwalls, and closure structures for a total length of 3.15 miles. This alternative has a benefit to cost ratio (BCR) of 1.2. The City of Cedar Rapids endorsed the implementation of Alternative 4-C as part of a comprehensive FRM plan for protecting both riverbanks.

The Chief's Report was signed on January 27th, 2011 and transmitted to OMB and Congress.

A Design Agreement (DA) was executed on December 21, 2010 beginning pre-construction engineering and design (PED).

The project was authorized for construction in the Water Resources Reform and Development Act (WRRDA) of 2014.

The project was appropriated funding for construction in the Bi-Partisan Budget Act of 2018 (PL 115-123), also known as Long-term Disaster Recovery Supplemental Funding.  

Background

The City and the Corps executed a Design Agreement Amendment to allow the provision of accelerated non-Federal funding to further the PED phase. The City has sent the Corps their entire proportionate share of estimated PED costs ($3.1M cash). The City and Corps have executed a Memorandum of Understanding (MOU) outlining work that City may design and construct as Work-In-Kind which is permitted in the DA.

Status

Project was authorized for construction in the Water Resources Reform and Development Act (WRRDA) of 2014. The project received construction funding on August 1st, 2018.  This funding is to be used to complete design and construct the entirety of the east side flood protection system. 

In 2018 through 2020 the team advanced design on all elements of the flood risk management system. The first federal construction contract was awarded October 2019 and completed November 2020.

Additional Information

Summarized Project Costs

Estimated Federal Cost

$ 76,362,000

Estimated Non-Federal Cost

$ 41,118,000

Estimated Total Project Cost

$ 117,480,000

Allocations Prior to FY 2022

$ 33,157,063

FY 2021 Allocation

$ 8,074,000

FY 2022 Allocation

TBD

FY 2022 President’s Budget

N/A

FY 2022 Total Capability

$42,397,937

 

Major Work Item Prior Fiscal Year

FY 2021:  The project moved forward with design work and award of the 1st Ave Road Closure federal construction contract. The non-federal sponsor awarded an earthen levee construction contract and advanced previously awarded earthen levee and road closure construction contracts. Several designs are complete and going through the real estate acquisition process.

Major Work Item Current Year

FY 2022: The project will move forward with completing design of the flood risk management project features in coordination with the local sponsor and numerous landowners and stakeholders, advance construction on earthen levee and road closure projects, continued execution of real estate transactions throughout the east side flood protection footprint. This includes land acquisitions as well as utility relocations and other actions to clear real estate interests. In FY 2022, three federal construction projects and one non-federal construction project are scheduled for award.