- 1881: 45 miles completed from Eagle Grove to Bradgate, Iowa by the Toledo and Northwestern Railway
- 1882: 115 miles completed from Bradgate to Hawarden, Iowa by the Toledo and Northwestern Railway
- 1883: 125 miles completed from Hawarden to Iroqouis, South Dakota by the Dakota Central Railway
- 1890: Toledo and Northwestern Railway purchased by the Chicago & North Western Railway
- 1900: Dakota Central Railway purchased by the Winona and St. Peter Railroad
- 1900: Winona and St. Peter Railroad purchased by the Chicago & North Western Railway
- 1974: Hawarden to Orange City segment abandoned
- 1978: Iroquois to Beresford segment abandoned
- 1978: Alton to Marathon segment abandoned
- 1980: Beresford to Hawarden segment sold to South Dakota
- 1981: D&I Railroad begins operations on Beresford branch
- 1982: Alton to Orange City segment abandoned
- 1988: Rolfe to Eagle Grove segment abandoned
- 1995: Chicago & North Western purchased by Union Pacific Railroad
- 2020: South Dakota sells Beresford-Hawarden segment to D&I Railroad
- 1981-present: D&I Railroad operates Beresford branch
- 1988-present: Three Rivers Trail uses Eagle Grove to Rolfe segment
- 1995-present: Union Pacific operates Laurens Subdivision from Marathon to Rolfe
06/26/21
Located west of Eagle Grove, this large deck girder bridge crosses the Boone River near Calhoun Avenue.
Built in 1902 to replace an earlier bridge, this structure features two standard deck girder spans, set onto stone piers. It is approached by trestle on the west side.
This is the first large bridge along the Three Rivers Bike Trail, which begins using this grade at Calhoun Avenue. The bridge features girders built in 1902, a year which this route saw major upgrades.
Overall, the bridge appears to be in good condition, as most bridges along this trail are.
The author has ranked this bridge as being locally significant, due to the common design.
The photo above is an overview.
| Upstream | Goldfield Rail Bridge |
| Downstream | UP Boone River Bridge (Eagle Grove) |