 The bridge was a long, single-tracked wooden trestle bridge on piles, with 33 truss spans (24 m each) and a 36 m swing section in the navigation between Tic Island and the northern shore.From Hiawatha the line ran roughly northward towards Peterborough, arriving in Ashburnham, on the east side of the Otonabee River.Ashburnham was formerly a separate town, but was annexed by Peterborough.