CGA conducted watermain improvements for the City of Parkersburg made possible in part by an Iowa Department of Natural Resources (IDNR) grant. CGA’s scope included: New ADA-compliant sidewalks Concrete driveway approaches New watermain and services Subdrain Curb and gutter
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 assisted ISU FP&M with improvements to 4000 feet of 13th Street from Stange Rd to the east edge of campus. The project approach includes using non-destructive pavement and subgrade evaluation technology to determine the remaining pavement life throughout the corridor to determine the extent of rehabilitation vs. reconstruction. CGA will take the project to…
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)…
An Iowa DOT grant-funded project was completed to develop a new industrial park to capitalize on a network of highways, railways, and runways west of the Waterloo Regional Airport. The City of Waterloo extended water main and sanitary sewer to serve these new commercial lots as well as rail services. Division 1 included 1100 feet…
CGA completed construction survey work for a 6” concrete overlay beginning south of Conrad up to Iowa Highway 175.
CGA completed the reconstruction of Mill Street and 6th Street pavement, from IA Highway 14, west approximately 1500 feet to A Avenue in Grundy Center. We performed the engineering design, construction phase, and construction staking services. The reconstruction involved complete removal of material, the laying of HMA pavement with PCC curb and gutter.
CGA completed street reconstruction on five blocks of city street in Conrad Iowa to accommodate a new residential development on the city’s north side. The project design included an on-street bike lane, storm sewer reconstruction, reconstruction of 17 existing residential driveways, reconstruction of five intersections, design of ten new residential driveways; design of one new…
CGA assisted the City of Marshalltown in developing a subdivision in a strip of undeveloped land along a major collector in town. With the subdivision, the City was not only able to set-up for the development of more housing in the area but also provide a second access point to an existing development containing 68…
