AFE 23128, Erskine, Minnesota, 1923. Between Erskine and Cass Lake Clean Out Ditches, Making Standard Subgrade Section Through Cuts, Using Material Excavated for Widening Shoulders of Fills. Interstate Commerce Commission Account Number 3, Grading. Cost: $4500. Series II. Lines East. Northern Division. Other Subject Categories: Track Maintenance, Grading and Embankment