Repair What Works, Fix What Doesn't
The box culvert beneath S. Lake Shore Drive showed its age - spalling inside the barrel and erosion carving away at the outlet, where a drop in water elevation concentrated energy. Lynch investigated the structure and designed a repair that extends its service life instead of replacing it.
Construction plans added a concrete apron and riprap at the outlet to stabilize the channel, dissipate energy, and stop the erosion - with permits secured and coordination handled directly with Town of Linn and WDNR officials. Practical scope, long-term resilience.
What We Delivered
Investigated barrel spalling and outlet erosion to target the real problems.
Concrete apron and outlet stabilization instead of full replacement.
Riprap for energy dissipation and long-term channel resilience.
Permits and approvals coordinated with the Town and WDNR.