Drainage decides whether the till behaves
Because Crosby-Brookston clay loam over glacial till expands when saturated, a Fishers drainage plan that keeps water moving away from the foundation does more to prevent future movement than almost anything else in the scope.
What a drainage plan should cover
- Downspout routing well clear of the foundation perimeter
- Surface grading adjustments common in newer subdivisions
- Sump and interior drainage sizing where the water table runs high near the White River
- Sequencing drainage work before structural repair, not after
- Documentation of the finished grade for future reference
Structural repair without a drainage fix rarely holds
Installing piers or bracing on a Fishers property without first correcting how water moves around the till is a repair that tends to need revisiting after the next wet season.