A trench detection system for an agricultural implement includes a row unitconfigured to form a trench in soil, to deposit an agricultural product in thetrench, and toat least partially close the trench after deposition of the agriculturalproduct. The trenchdetection system also includes a tactile probe assembly behind the row unitthat, inoperation, contacts the soil after closure of the trench and generates asignal indicative ofa quality of the closure.