Commercial traffic continued to decline , effectively ceasing in the 1970s , though lime juice was carried from Brentford to Boxmoor until 1981 .
Commercial traffic aggregates on the River Soar until 1996 .
Commercial traffic continued to decline , effectively ceasing in the 1970s , though lime juice was carried from Brentford to Boxmoor until 1981 , and aggregates on the River Soar until 1996 .