U.S. Highway 59

Cedar Valley, IA | Public Works

Overview

The reconstruction of US Highway 59 from the Ida County line north to the City of Cherokee required gathering cross-sections at twenty-five foot intervals for the twelve-mile long project. The project involved surveying the existing alignment and grade of both lanes in order to design a smooth profile for the 6" PCC concrete overlay.


Opportunity

The goal of the project was to be able to mill out a portion of the HMA to better fit the new design profile while leaving a layer of HMA to use as a bond breaker between the original concrete and new concrete overlay.

Solution

ISG engineers designed independent horizontal and vertical alignments to better fit today's design standards while also controlling costs. The new alignments were submitted and approved by the IDOT resident engineer. ISG staff set paving hubs to control the milling of the asphalt and concrete paving operations.


Market News

ISG Strategically Advances Environmental Service Expertise

July 23, 2020 (Bloomington, Minnesota) – ISG, a professional design and engineering firm made a strategic advancement to expand its services by welcoming Julie Blackburn as its new Environmental Practice Group Leader, out of the firm’s Bloomington office. Joining 300+ employee-owners including a team of in-house environmental scientists, Julie, the former Governor’s appointee to the Lessard-Sams Outdoor Heritage Council, brings over 25 years of passion for identifying environmental solutions and will guide the firm as it takes the next step in becoming an industry leader in environmental services.
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ISG Named Business of the Year by Grow Cedar Valley

June 22, 2020 (Waterloo, Iowa) – Based on its growing presence in eastern Iowa and efforts to give back to the community, ISG has received the 2020 Business of the Year Award from Grow Cedar Valley, an organization devoted to the growth of businesses in the region. ISG’s Waterloo office was honored as one of two businesses of the year (1-50 full-time employees), marking the firm’s growing impact in the region since expanding its footprint to Waterloo in 2018.
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