Like many public works employees in small communities in Iowa, the City of Parkersburg staff had a pretty good idea of how their water, sewer, and sanitary systems were laid out. But this information was scattered among engineering plans, old maps, sketches, and even in the minds of long-time employees. CGA has provided engineering and…
Story City’s I-35 Business Park is a city led development on the east side of I-35 north of Ames. CGA has worked with Story City over the past 20 years on development of the site over several phases to accommodate new industrial businesses to grow the communities’ tax base. Each project phase in the park…
Due to the untimely occurrence of spring flooding and ice flows, the Historic Swinging Bridge of Story City’s South Park was impacted with large pieces of ice, doing a vast amount of damage to the structure. CGA assisted the city in doing a structural analysis of the bridge to determine the scope of the damage,…
CGA completed a boundary survey for the Ultimate Auto Car Wash, followed by an analysis and design for the new soldier pile retaining wall that was to replace the old deteriorated wooden retaining wall. CGA worked with local utility companies to identify different utilities and easements on the site so that they could be avoided…
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…
The 2010 flooding along South Duff resulted in the redevelopment of 716 S. Duff Avenue. The site offered an opportunity for the CGA design team to creatively navigate the city’s requirement for storm water management at 10,000 square feet of disturbed impervious area. The Jimmy John’s site is the first along S. Duff Ave. to…
CGA 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 join the historic Alumni Recitation and Carnegie Halls on the west side of campus. CGA assisted in the design of a green roof and storm water reclamation tank for flushing…
CGA was the Design Engineer on the development of a new hotel in Boone, including site layout and design; utility design; multiple iterations of stormwater calculations, proposed native swale and existing pond; site grading including setting the building elevation; landscaping including native grasses; and coordination with the owner, contractor, and the City of Boone.
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…
CGA provided the Civil Engineering Services for a new Premier Best Western located on the east side of Interstate 80 in Ankeny. Wertzberger Architects designed the new 4-story hotel and conference center to connect to the former restaurant building. CGA designed a small parking lot extension, site utilities, pedestrian extensions, and outdoor patio areas for…
