Of the three main truss spans, only the southernmost (main river channel) span should be considered a Pennsylvania through truss. The remaining truss spans are both very large Parker through trusses with horizontal stabilizing members added to them, most likely because of their very large size and length. These horizontal members make it very easy to mistake these truss spans for Pennsylvania trusses, but closer observation shows a lack of the subdivided panel members required to classify these trusses as Pennsylvania trusses.
Length of largest span: 400.0 ft.
Total length: 1,074.2 ft.
Deck width: 20.0 ft.
Lewis and Clark Bridge
Approximate latitude, longitude
+48.06673, -105.53444(decimal degrees) 48°04'00" N, 105°32'04" W (degrees°minutes'seconds")
Deck condition rating: Poor(4 out of 9) Superstructure condition rating: Fair(5 out of 9) Substructure condition rating: Fair(5 out of 9) Appraisal: Structurally deficient
Sufficiency rating: 34.6 (out of 100)
Average daily traffic (as of 1991)
August 11, 2017: Updated by Christopher Finigan: Added category "Riveted"
July 11, 2017: New photos from David Jones
April 20, 2010: New Street View added by J.P.
February 18, 2010: Updated by Matthew Lohry: Updated span truss types
February 17, 2010: Updated by Matthew Lohry: Updated GPS coordinates and county location
August 2, 2008: Updated by James McCray: updated status description
August 2, 2008: Added by James Baughn
HAER MT-96 - Wolf Point Bridge, Spanning Missouri River at State Highway 13, Wolf Point, Roosevelt County, MT