About the Location
The City of Larchwood, IA, engaged in a proactive pavement preservation effort across residential asphalt roadways. The surfaces were relatively new—estimated at three to five years old—with overlays of 2 or 3 inches deep in good overall condition and no visible cracking or patching. The project was completed in partnership with Brandon Green and Bargen Inc., applied to approximately 25,000 square yards of driving lanes across multiple road segments. A newly appointed public works director initiated the project with the goal of extending pavement life and implementing long-term maintenance strategies before deterioration began.
(above) Residential asphalt streets in Larchwood, IA, treated with BioSpan’s RePlay
At a Glance
The Challenge: Preserve structurally sound but aging asphalt before visible distress appears, extending service life without waiting for failure.
The Solution: RePlay was applied to preserve the asphalt to protect and maintain binder performance in early-life pavement.
The Result: RePlay will strengthen these residential streets, help resist crack propagation, moisture penetration, and sustain overall durability.
“Our goal in Larchwood was to move away from reactive repairs and toward a long-term maintenance strategy to stop deterioration before it starts. Working with Bargen Inc. to apply RePlay was a seamless process; The application was handled efficiently, with minimal disruption for our residents. It’s a relief to know our newer asphalt surfaces are now protected and will maintain their performance for years to come.”
— Larchwood public works director
Application Approach
RePlay was applied to active residential streets using a flatbed spray system for the main driving lanes, and with hand-pump sprayers used around irregular edges, sharp turns, and grassy boundaries. Work progressed in manageable segments because the project consisted of several smaller roadway sections rather than one continuous stretch. Working in sections allowed alternate routes for most residents and reduced traffic disruption. The project was completed efficiently, reinforcing RePlay’s suitability for low-volume residential roads where early intervention supports long-term pavement performance.
(above) Residential asphalt streets in Larchwood, IA, treated with BioSpan’s RePlay