Greene County Development Corporation Completes Highway Traffic Study

Study covers two-mile radius around Jefferson, Iowa to support future business development

Published on Feb. 12, 2026

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The Greene County Development Corporation has completed a traffic study along the US Highway 30 and Iowa Highway 4 corridors in and around the city of Jefferson, Iowa. The study was done to support a business prospect that wants to locate within the Highway 30 corridor. The study looked at a two-mile radius outside the city limits to the west, east, and north to help the Iowa Department of Transportation plan for future highway expansions and development.

Why it matters

The traffic study is a key step in the process for the business prospect to move forward with development plans. It also allows the local government entities and the state DOT to coordinate their long-term planning for highway expansions and other infrastructure improvements to support economic growth in the region.

The details

The traffic study was expanded beyond the immediate site of the business prospect to cover a two-mile radius around Jefferson. This will help the Iowa DOT plan for the eventual four-lane expansion of Highway 30, similar to what was done on Highway 20 in recent years. The GCDC is working to ensure the DOT's long-term plans don't hold up the business prospect's ability to use the property in the near-term, as the highway expansion may not happen for another 10 years or more.

  • The traffic study was recently completed and submitted to the Iowa DOT for review.
  • The Highway 30 four-lane expansion is targeted for the future, potentially around 2035 according to DOT planning.

The players

Greg Piklapp

Executive Director of the Greene County Development Corporation.

Iowa Department of Transportation

The state transportation agency reviewing the traffic study and planning for future highway expansions.

City of Jefferson

The local municipality working with the GCDC and DOT on development plans along the highway corridors.

Greene County

The county government collaborating with the GCDC and DOT on economic development and infrastructure priorities.

Business Prospect

The company interested in locating a new facility within the Highway 30 corridor in Jefferson.

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What they’re saying

“We know Highway 30 is targeted for the four-lane expansion like they did on the (Highway) 20 in the past several years. The DOT is trying to do is plan for that, it being so far into the future. So we're having the conversation with the DOT saying, 'Yes we understand that this is a concern maybe in 2035 in your (the DOT's) future planning, but we're in 2026.' We cannot have things on hold for this property for ten years while this comes to fruition or if it doesn't. Really just making sure that we don't have to wait, we can use the property now for the community needs and the Greene County needs.”

— Greg Piklapp, Executive Director, Greene County Development Corporation (Raccoon Valley Radio)

What’s next

The Iowa DOT is currently reviewing the traffic study, and the GCDC hopes to have the review process completed soon in order to move forward with the business prospect's development plans.

The takeaway

This traffic study demonstrates the importance of collaboration between local economic development organizations, municipal governments, and state transportation agencies to coordinate long-term planning and infrastructure investments that can support business growth and community development.