Brown County hears low‑cost rural bridge options from farmer‑funded coalition

Brown County commissioners heard a briefing on Tuesday from the Soil Transportation Coalition about lower‑cost methods for replacing and repairing short‑span rural bridges and agreed to take local next steps, including a survey of bridge foremen and a scheduled work session.

The presentation, given by Mike Steenen, executive director of the Soil Transportation Coalition, emphasized that many rural counties lack the revenue to replace aging bridges and that cost‑saving construction techniques can extend limited budgets. "My crystal ball says that there will never be enough money from the federal government, from the state government, and from local government to fully satisfy all of our rural bridge needs," Steenen said, arguing the county must both pursue funding and reduce replacement costs.

Steenen summarized a coalition report listing 20 proven innovations; he said the group selected concepts that meet three tests: substantial cost savings (roughly 25 percent or more), documented engineering credibility and applicability across many rural areas. He highlighted railroad flatcar bridges as a widely used option for short spans and cited a recent build that cost $300,000 compared with an estimated $900,000 for conventional construction. "So you're talking about a $600,000 cost savings for 1 rural bridge," Steenen said.

Other methods Steenen described included vibratory H‑pile drivers — an excavator attachment that he said reduces time and impact compared with traditional impact drivers — buried soil structures and GRS‑IBS (geosynthetic‑reinforced soil integrated bridge systems), which the Federal Highway Administration developed to use more accessible local inputs. He recommended counties consider equipment‑sharing arrangements and consult engineers with experience in the techniques.

Representatives associated with state soybean organizations joined the call. Raylan Phelan, identified in the presentation as one of the Kansas Soybean Commissioners appointed to the Soy Transportation Coalition board, said the Kansas Soybean Commission has made funds available to offset pre‑engineering costs: "there's up to $10,000 available for the pre engineering cost," Phelan said, and he described an Osage County project that used similar support.

Commissioners asked technical and implementation questions — including sourcing retired flatcars, deck materials, how the designs perform under salt on paved roads and certification requirements for local engineers. Steenen recommended reaching out to Buchanan County’s engineer, who has built many flatcar bridges, and cited Purdue and Iowa State studies as sources of engineering validation.

As a procedural follow up, the commission agreed to survey its bridge foremen for a short list of the five bridges they consider most vulnerable and scheduled a work session for Thursday from 1:00 to 2:00 to review findings and next steps. The meeting concluded with a verbal vote to adjourn.

Why it matters: Brown County officials said the county is responsible for about 195 bridges with life spans typically expected near 75 years; many of those structures are reaching the end of their expected service life and replacement costs can run into the hundreds of thousands of dollars per span. Presenters and local commissioners framed the innovations as potential ways to make limited local dollars cover more projects while still meeting engineering and safety requirements.