Grinnell College Landscape Master Plan | Phase I

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…

UnityPoint Hospital (formerly Marshalltown Medical & Surgical Center)

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…

Grand Crossing PICP Parking Lot | Waterloo, IA

CGA served as the design engineer for the Waterloo Grand Crossing Parking Lot, entirely designed with permeable interlocking concrete pavement (PICP). CGA assisted in coordination with the City of Waterloo Engineering Department and the IEDA as part of the Iowa Green Streets Initiative. They prepared the design plans and specifications and coordinated with the prime…