CGA is working with the City of Story City and Keller Excavating on water main improvements along Larson Avenue, 4th Street, and Market Avenue between Cedar Street and Washington Street. New water main will be installed on the east side of Larson Avenue, the south side of 4th Street, and the east side of Market…
The Clear Creek Watershed Project includes activities in the upper watershed to reduce flooding and improve water quality, as well as infrastructure projects in the city of Coralville. Visit this link for more information about this watershed: http://www.clearcreekwatershedcoalition.org/quick-facts.html The Iowa Watershed Approach (IWA) is a vision for Iowa’s future that voluntarily engages stakeholders throughout the…
CGA assisted U-Haul with the completion of a new 3-story, 24,000 SF climate-controlled self-storage facility in Ames. The building is located along the Ioway Creek floodway and was placed to maximize the site without disturbing the floodway. Design included placing the first floor 3’ above the 100-year floodplain, loading docks, pedestrian access, parking, access road,…
CGA has been assisting the Hardin County Drainage District 56 with an upper main tile diversion. This is being done to reduce the hydraulic load on the tile, thus increasing its life. CGA also assisted with right-of-way services.
CGA assisted the Marshalltown Community School District with maintenance and repairs to their high school parking lot. CGA evaluated the pavement condition and identified areas of complete removal and replacement as well as areas of pavement mill and overlay in order to establish project limits to meet the client’s budget. The project included storm sewer…
Sometimes you just need a little reassurance that your new site will drain. We can pull together a quick grading plan for use in your GPS grading equipment just like we did for Helena Agri-Enterprises, LLC new crop-dusting facility in Parkersburg!
The City of Ames has experienced localized flooding in various areas around the city including in the Somerset area. CGA modeled stormwater flowing to the Somerset detention basin along GW Carver and measured the amount of silt that had accumulated in the bottom of the pond over the years. The final design included silt removal,…
CGA performed Land Acquisition Services for the Ioway Creek (formerly Squaw Creek) Flood Mitigation Project including 11 parcels near the Duff Avenue Corridor in Ames, Iowa. Services were in accordance with the requirements of the Uniform Relocation Assistance, Real Property Acquisition Act (URA), and FEMA HMGP Section 44 CFR Part 80, including: Title Certs, Appraisals,…
CGA was hired by the City of Marshalltown in partnership with HDR to enhance the city’s storm sewers in 2021. CGA provided the topographic survey, property corner preservation, land acquisition/right of way services, construction staking, and soil testing.
CGA worked with Boulders Development to build a new 40-room hotel and Fareway Conference Center in Boone, Iowa. Site work included coordination with the Boone Business Park, Northern Natural Gas, City of Boone, and an adjacent landowner for stormwater conveyance and management; site layout per city codes and park requirements; grading; on-site stormwater quality design;…
