Because the projects were back-to-back, the design time was accelerated using the previously established methodology so that these two projects could be worked under one traffic management plan.

This innovative approach and the quality efforts of everyone involved saved money and brought the project in on time.

Thanks to the creativity and commitment of everyone involved, this very important highway is sure to provide many years of service to motorists.

County Roads

(GOLD) Garfield Avenue, Sioux City, Iowa

Contractor: Cedar Valley Corp.

Owner: Sioux City, Iowa

Engineer: Sioux City, Iowa

High-quality farm-to-market roads very important to the agricultural interests in the state of Iowa … and Sioux County’s Garfield Avenue were no exception.

Cedar Valley Corp. paved 5.00 miles of 8-inch concrete paving. The project involved regrading and paving of an existing gravel county road. After the existing road was reworked to obtain the specified two percent cross slope, 4 inches of a virgin rock base was placed prior to the paving operation.

A considerable amount of shoulder-grading was also performed to correct the existing foreslopes to bring them up to the current standards. The 22-foot wide paving was a variable depth design of 9 inches on the outside edge and 8 inches at centerline.This design method is used in Iowa to counteract the outside point loads applied by farmers’ grain wagons.

The project also specified contraction dowel baskets be placed on twenty-foot centers. Two items that make this project stand out above others are the outstanding quality of the finished product, and the exceptional job Cedar Valley Corporation did to maintain access to local property and business owners.

C.V.C. also paved 10 lane miles with an average smoothness of 1.44 inches per mile using a 2/10-inch blanking band. In spite of the challenges, this project was finished in only 53 working days.