Lincolnshire Residential Subdivision Development | Waterloo

Lincolnshire Addition is a newly built residential subdivision located between Monticello Avenue and Meadow Lane in Waterloo; SW of the Ridgeway/Ansborough intersection behind Cedar Valley Community Church. CGA completed the boundary/site survey, topographic survey and subdivision plat. Our design role consisted of site grading, sanitary sewer, water main, storm sewer, and paving. We were also…

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…

Celebrations | Ames, IA

CGA was the Design Engineer on the design-build of a new building at an existing site in Ames, including site layout, grading, and utilities; design of a bioretention cell; design of a custom multi-tank storage system with staged outlet to provide quantity and quality stormwater storage per the existing City of Ames code; preparing the…

The Willows of Marshalltown | Assisted Living & Memory Care

CGA partnered with Design Alliance to provide a site plan and design for a new assisted living facility in Marshalltown, IA, including existing conditions and demolition; site layout; grading; storm sewer design; sanitary sewer and water service design; utility layout; staking plan; stormwater controls (stormwater quality and detention); and details. In addition, CGA provided the…

Meskwaki Parking Lot Expansions | Renard’s Factory

CGA has performed numerous improvements at Meskwaki, including the recent Renards Factory Pavement Package consisting of subbase preparation; 8,739 square yards concrete pavement; finish grading and miscellaneous work associated with the installation of a parking lot. Also recently completed was the Meskwaki Parking Lot Expansion including: grading; storm sewer utility; sanitary sewer utility; 5,605 square…

North Park Streambank Restoration | Story City, IA

CGA completed analysis, design, and construction administration for streambank restoration and new pedestrian bridges in the City of Story City’s North Park in 2019. The deteriorated wooden pedestrian bridges were replaced with new steel bridges to improve pedestrian access throughout the park. CGA worked with the vendor, a local light manufacturer, and a local electrician…

Iowa Veteran’s Home Memorial Drive Improvements | Marshalltown

CGA partnered with TSP Architects on the Dack Hall expansion and was subsequently hired to make improvements to Memorial Drive. The team worked to improve drainage in the area, provide a covered bus loading/unloading for Dack Hall, and bring pedestrian access within ADA standards. After removing the original pavement the subsoils were explored and found…