Skunk River Pedestrian Trail and Bridge | Story City, IA

CGA provided design, funding administration, construction administration and observation services for the City of Story City. In an effort to create a more walkable community, the City of Story City had committed to constructing miles of trails along the Skunk River and into a newly developed residential area. The final piece was the construction of…

Wastewater Treatment Mechanical Plant | Eldora, IA

CGA is currently assisting the City of Eldora with further process adjustments/alterations to reduce Total Phosphorous concentration in plant effluent to further Iowa DNR’s commitment of the Iowa Nutrient Reduction Strategy. Increasingly more stringent discharge standards made it necessary to upgrade the WWTP in the late 1990s. Preliminary engineering began about 1997 for replacing or…

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…

U.S. Economic Development Administration Preliminary Engineering Report | ISU Research Park, Ames, IA

CGA was the Project Manager for the development of the Economic Development Administration Preliminary Engineering report for ISU Research Park improvments, including preliminary design components and cost estimates. In addition to the Project Overview, the report included a Feasibility Analysis showing Required Permitting, a bid package for a Public Utility Extension as well as Roadway…

Linn Creek | Hwy. 30 Trail

CGA provided planning, survey, design, and construction services for three connective projects which contained federal funds and followed the Iowa DOT’s Project Development Schedule. Two of the projects were 10-foot wide trail segments constructed of 4” thick asphalt with 2-foot wide grass shoulders. The first phase connected two segments of the trail system within the…