The American Society of Civil Engineers (ASCE) is the nation’s leading authority on infrastructure. They recently released their 2025 report card and gave Idaho a “C” rating. That’s up from a “C-” last time and is notably better than the national average of “D.” This progress tells a story of steady improvement—and civil engineering firms like Keller have been key contributors.
WHAT DOES A “C” MEAN?
A “C” grade from ASCE reflects infrastructure that works, but just barely. Idaho’s rapid growth and rising demand are causing systems to fall behind.
Roads are busier, bridges aging, and water systems need upgrades to stay reliable. These problems are also chances to improve, and the report is a roadmap for smart investments where they matter most.
That’s where Keller comes in. With strategic engineering, we’re helping Idaho move from simple upkeep to real progress.
HOW’S KELLER RAISING THE GRADE?
Idaho’s infrastructure grade jumped thanks in part to Keller’s bridge work, and our road projects helped push us ahead of the curve. As the Local Highway Technical Assistance Council’s (LHTAC) #1 ranked consultant for bridge design and CE&I services in the Leading Idaho Local Bridge Program, we’ve delivered over 30 bridges statewide. We’ve cut build times, reduced detours, and saved communities money. At the same time, our roadway upgrades are improving safety and connectivity so that every mile works as hard as every bridge. Keller’s contributions include 14 bridges finished in 2025, and 11 more are starting or in construction.
Here’s a look at some of the key projects that helped Idaho level up:
17th Street Bridge | City of Ammon, ID
How do you replace a downtown bridge that carries 24,000 vehicles a day? And how do you do it without disrupting holiday business while also working around utilities and environmental constraints? Keller found a way and replaced the 17th Street Bridge over Sand Creek in the City of Ammon. To meet these challenges, the team designed a shallow foundation with a long span and used Geosynthetic Reinforced Soil Integrated Bridge System abutments with precast voided slabs. This allowed construction around utilities and made it possible to achieve an expedited construction schedule. The best part? This solution reduced business disruption, accelerated delivery, and provided a durable structure that integrates seamlessly with existing features and maintains traffic flow.
Teton Island Canal Bridge | Madison County, ID
When it came time to replace the Teton Island Canal Bridge there were several challenges at hand. Like a sharp 90-degree canal bend, proximity to a high school, and the need to maintain bus access throughout construction. To do this, the new design realigned the canal channel and integrated with existing headgate and drainage systems. This provided a safe, durable crossing that improves traffic flow and pedestrian safety. A project like this shows how precise, adaptable engineering can improve Idaho’s infrastructure and make life better for its communities.
Benton Street Bridge | Pocatello, ID
If an old bridge is part of a levee wall, its poor condition can create serious issues. Like weakened flood protection and limited neighborhood access. When that happens, replacement is essential. Working closely with the City of Pocatello and U.S. Army Corps, Keller designed improvements that removes a structurally deficient bridge, modifies levee walls, and introduces a new concrete bridge crossing on deep foundations for long-term stability. All within a tight residential area. Raised sidewalks and decorative railings will improve pedestrian safety and aesthetics, while the project maintains flood protection and improves connectivity in one of Pocatello’s high-use areas. Construction is expected to begin in the coming months.
Portneuf Greenway, Farm Bureau to Monte Vista | Pocatello, ID
Steep terrain, floodplain constraints, and complex property ownership. Those were just a few of the things Pocatello was up against when they set out to expand the Portneuf Greenway with ADA-accessible paths along I-15. Keller came through and answered the challenge. The team partnered with Idaho Transportation Department and local agencies, navigated right-of-way hurdles, and created two new segments totaling over a mile. Marshall-Racine offers gentle grades, aesthetic walls, and rest areas, while Monte Vista overcame 80 feet of elevation and floodplain constraints. The result? Safe, scenic connections that boost recreation, link neighborhoods, and open the Greenway to more users in the community.
Garden City to Americana Greenway | Boise, ID
Boise needed to close a 3,900-foot Greenbelt gap along the south side of the Boise River. It was a section complicated by floodplain restrictions, hydraulic compliance, and two bridge crossings. Keller’s solution included tunnels under Main Street and Fairview Avenue, retaining walls, a pedestrian bridge over Settlers Canal, and utility relocations. Hydrologic Engineering Center’s River Analysis System confirmed no flood rise and all required permits were secured. The completed segment is a major win for the community. It provides safe, scenic connections, next-levels recreation, and will help manage floodplain needs for years to come.
COMMITTED TO STAYING AHEAD OF THE CURVE
Infrastructure is never a solo effort. It’s the result of collaboration among public agencies, private consultants, and dedicated engineers. Keller is proud to help advance Idaho’s infrastructure and meet the demands of a growing state. The jump from C- to C shows progress, but the work is far from over. As Idaho continues to grow, we’re committed to building systems that are stronger, safer, and ready for the future. Because this is what will keep Idaho moving forward.
Let’s build what’s next together. Contact us today. >
Want to see more of what we can do? Check out our projects. >