Public Works

Completed Segments

Permanent flood control projects completed to date include

Training Wall
  • Section of removable floodwall to train and prepare crews for flood response.

CRST Pump Station
  • Completed in 2023
  • Pump station within the CRST Building

1st Street SE Storm Sewer
  • Completed in 2023
  • Connects to the future pump station
  • Reduces the number of river outlets

1st Avenue E Roller Gate

Cedar River Trail from CRANDIC - 16th Ave

Capture - Copy.PNG (9)Czech & Slovak Museum & Library Floodwall
  • Completed in 2023
  • Permanent concrete floodwall from the 16th Avenue gate to the proposed pump station just south of the 12th Avenue Bridge.
  • Includes a raised, terraced yard to accommodate outdoor activities at the museum and minimize the appearance of the floodwall.

Shaver Road NE BridgeCapture - Copy.PNG (8) 

  • Completed in 2023
  • The new bridge that raises the existing roadway 8' to cross over the levee, improving the City’s overall flood response time. The Shaver Road Bridge is the longest three-span continuous concrete slab bridge in Iowa.

Riverside Park Detention Basin 

  • A detention basin constructed for river storage in the event of a flood until it can be safely pumped back into the Cedar River.

371445920_686457923518216_6789681838716706293_n Riverside Skatepark and Playground 
    • To accommodate detention basin construction, the skatepark and playground have been replaced and relocated at Riverside Park.

1st Avenue SE Floodgate2023 Apr 11 - 1st Ave Floodgate Ribbon Cutting - (84)

  • Roller gate similar to 16th Avenue SE
  • 1st Avenue to remain open during construction, lane reductions in effect
  • Temporary parking removal on 1st Avenue during construction

Demolition of the HydroElectric Facility at the 5-in-1 Dam

  • Completed 2022
  • Facility was removed since it was damaged in the 2008 Flood and out of service.
  • Will allow for the construction of a future floodwall between the dam and 1st Ave E

1st Street SE Storm Sewer Improvements

  • Completed 2022
  • Between 3rd Ave - 5th Ave SE
  • Storm Sewer connects two future pump stations
  • Consolidates drainage outfalls to the Cedar River

16th Avenue SW Roller Gate
  • Completed 2022
  • Roller Gate paired with decorative archway

2021 Otis Road Storm Sewer
  • New Storm sewer directs water to escape instead of backing up into the neighborhood

Amphitheatre floodwallAmphitheatre Floodwall

  • Completed 2021
  • Floodwall built into the side of a new facility that doubles as a public restroom and event storage.
  • The built-in floodwall protects the 2008 flood volume.
  • It will tie into a levee and removable floodwall that will stretch from the Amphitheatre to 7th Avenue SW, coming 2023

NewBo Lot 44 Levee

  • Completed 2021
  • Located between 9th Avenue SE and 12th Avenue SE
  • Parking restrictions in place during and after construction
  • View a map of parking impacts 

3rd Avenue SE Floodgate3RD AVE FLOOD GATE concept

  • Completed 2021
  • Stackable/removable floodgate
  • Permanent columns on the sidewalk
  • Stackable panel gate during flood
  • Deployed for a 22 ft river elevation
  • 3rd Avenue closed during construction

Czech Village Underground Gate

  • Completed 2021
  • New underground stormwater gate
  • Prevents river water from backing up into the City’s storm sewer system, eliminating street flooding
  • Reduces the City’s reliance on temporary measures such as plugs and pumps 

Masaryk Park MemorialMasaryk Park

  • Completed 2021
  • Reinstating memorial markers that were moved during levee construction
  • Recall individuals significant to the history and development of the New Bohemia District
  • Includes replacing flag poles and adding bike racks and plantings 

Quaker Oats Flood WallIMG_0389

  • Completed 2021
  • Protects one of the nation's leading agricultural producers
  • 2,100 linear feet of a permanent flood wall
  • Will ultimately protect the 2008 flood volume
  • Includes pump station upgrades, water transmission main relocation, and railroad closure gate

1st Street Storm Sewer Improvements

  • Completed 2021
  • Between A Avenue NE - 1st Avenue East
  • Consolidates drainage outfalls to the Cedar River
  • Directs downtown stormwater to a future pump station at Tree of Five Seasons Park
  • Facilitates construction of floodgate across 1st Avenue East

16th Avenue SE Roller Gate16th Ave Floodgate

  • Completed 2020
  • Rolls across the road to keep water in the river
  • Room to store gate behind the flood wall 
  • Protects to 2008 flood volume
  • 45 minutes to close the gate
  • Similar gate planned for the west side of the bridge in 2022

Czech Village LeveeCzech Village levee construction work

  • Completed 2019
  • Approximately ½ mile long
  • Stretches from Linn County Solid Waste Agency to 16th Avenue SW
  • Approximately 16-20 feet tall on average
  • Protects a river elevation up to 19.5 feet
  • Once the entire Flood Control System is complete and it's tied into future segments: protects the 2008 flood volume
  • Includes 12' wide walking/bike trail 

Northwest Gateway & Memorial Plaza Rendering of plaza

  • Completed: June 2018
  • Situated along O Avenue & Ellis Blvd NW.
  • Includes greenway space, benches, and a memorial wall.
  • The plaza also features a distinctive gateway that welcomes residents and visitors to the site. 
  • Privately-funded "West Side Rising" sculpture pays tribute to neighborhood recovery and persistence

Lot 44 Pump StationRendering of brick pump house

  • Construction: 2016–Spring 2018
  • Located between 8th and 12th Avenues NE in New Bohemia District. 
  • Pumping capacity: 12,000 gallons per minute at the opening, with capacity for expansion.
  • Aesthetics designed to complement the character of the neighboring district.
  • Includes gate to prevent the river from backing up into the neighborhood through storm sewers.
  • Protects community from rain inundation by pumping rainwater back into the Cedar River.

Sinclair / NewBo Levee Sinclair Levee

  • Stretches from the African American Museum to Alliant Substation.
  • Just under ½ mile long.
  • 13–23 feet tall on average, 130 feet at its widest.
  • Provides immediate protection of a river surge up to 20 feet; protection to 2008 volume upon Flood Control System completion.
  • Includes a 12-foot wide concrete bike and pedestrian trail.
  • Includes walls next to 16th Avenue NE for a future gate.

Sinclair Detention BasinSinclair Detention Basin

  • Construction: 2016 – 2017, grading/aesthetics 2018 
  • 4.4 acres, used to store excess rainwater until it can be safely pumped back into the river
  • Can safely store rainwater up to 4 feet deep
  • Includes paved lot for excess snow storage during snow removal efforts 

Sinclair Pump StationSinclair Pump Station

  • Sized for 3 pumps
  • Capacity of 2,500 gallons per minute at the opening, with expansion capability
  • Used when underground flood gates are closed and rainwater needs to be pumped back into the river

CRST Riverwalk 
Rendering of CRST riverwalk

  • Provides a pedestrian walkway along the Cedar River between 2nd and 3rd Avenues

McGrath AmphitheatreAmphitheatre_web - Copy (2)

  • Recreation blended with protection.
  • Designed to take on water, the amphitheater
    also provides a signature outdoor concert and event venue.

Reducing Our Flood Risk
Since 2008, the City has significantly reduced its flood risk. A history of risk reduction efforts includes

  • Developed interim flood control plan
  • Removed 1,300+ properties from the flood zone
  • Adopted new flood insurance rate maps
  • Updated Floodplain Management Ordinance
  • Secured GRI state funding of $267M
  • Improved sanitary sewers and raised the City’s wells
  • Upgraded and protected the Water Pollution Control Facility
  • Completed interim levee repairs
  • Raised buildings flooded in 2008
  • Raised two bridges over Prairie Creek
  • Designed and constructed the McGrath Amphitheatre levee
  • Designed the CRST building to include a flood wall
  • Completed improvements to the sanitary sewer system and watershed management practices.
  • Sanitary sewer and watershed management improvements (ongoing) 
What's Happened Since 2008?

© 2024  Cedar Rapids, Iowa, 101 First Street SE

Powered By Revize Login