370th Street Over Upper Iowa River in Rural: Winneshiek County, Iowa, United States
Metal 8 Panel Rivet-Connected Warren Pony Truss, Fixed
Length: 147 ft.
Main Span: 73 ft.
Roadway: 16.1 ft.
Main Spans: 2
30th Street Over Bigalks Creek (Nichols Creek) in Rural: Howard County, Iowa, United States
Metal 5 Panel Rivet-Connected Pratt Full-Slope Pony Truss, Fixed
Length: 43 ft.
Main Span: 40 ft.
Roadway: 17.7 ft.
Main Spans: 1
Special Bridge Conditions Legend: R - Former location of relocated bridge.
! - At risk for demolition or destruction.
X - Confirmed demolished or
- Dismantled and/or in storage.
Severe loss of historic integrity due to alteration.