CGA assisted the City of Story City with the reconstruction of Broad Street from Lafayette Ave to Grand Ave and Elm Ave from Maple St. to Oak St. This included new pavement, sidewalks, and utilities. The project scope included a topographic survey, design, and construction observation. Construction was completed in 2021.
CGA is currently providing construction observation and administration for the City of Eldora on an eight-block stretch of 11th Avenue. Improvements include updates to the water system, sanitary sewer main, storm sewer main, sidewalk/trail system, and full reconstruction of the pavement section. Repaving and updates will also occur to all driveway and sidewalk crossing connection…
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…
New developments or changes in the use of an existing site can have an impact on traffic volumes and patterns on adjacent streets and highways. These impacts can require intersection controls, additional lanes, or specified turn lanes to be installed prior to the development being approved and completed. Jurisdictions (cities, counties, or the Iowa DOT)…
CGA completed the site design for the new Teen Center in Waterloo. The project included a new two-story 10,700 SF facility to house classrooms, gathering, and gym spaces focused on serving the teens of Waterloo. The site is located across the street from East High School and one block away from the Waterloo Main Office.…
CGA recently had the honor to assist Grinnell College with several improvement projects. We partnered with EYP architects to complete the design and construction of the new $90 Million HSSC complex. The project included a 3-story addition to joining the historic Alumni Recitation and Carnegie Halls on the west side of campus. CGA assisted in…
CGA is providing construction staking services during this phased construction project on a major intersection in Cedar Falls. Having been labeled as one of the deadliest intersections in the state of Iowa, The Iowa Department of Transportation’s Iowa 58 (IA 58) and Viking Road Interchange Construction Project began in 2018 and is scheduled to be…
CGA partnered with ASG and Confluence Landscape Architects to redesign the exterior facilities on the Grinnell College Campus. The Phase I design began in 2016 with construction beginning in 2017 and scheduled to continue through 2019 in conjunction with a new Admissions and Visitors Center and a 1-acre building addition connecting two historic buildings on…
The CGA team designed site improvements and administered construction for a new hospital on the south side of Marshalltown. The project was built in two construction packages over a 15-month period. Our team successfully presented cost-effective solutions for challenging soils and worked side-by-side the Geotechnical Engineer and contractor during construction to provide a subgrade bridging…
Butler Street in Ackley has historically experienced flooding and over-topping during heavy rain events. As a result, the City of Ackley authorized a feasibility study for repairs and improvements to the Butler Street watershed. Based on the study, it was determined that although it was warranted, a totally new storm water conveyance system was not…
