The Government Bridge, or Arsenal Bridge, spans the Mississippi River connecting Rock Island, Illinois and Davenport, Iowa. It is located near upper Mississippi mile 483, adjacent to Mississippi River Lock And Dam No. 15. The current structure, the fourth in a succession at this location, includes a swing section to accommodate traffic navigating the locks.
The relocation was driven by the federal government, which still owned the island and wished to redevelop it into an arsenal. The original bridge and rail line severed the property in two and this development constraint was removed by relocating the bridge to an extreme end of the island. The federal government jointly used this bridge for access with the railroad, giving rise to the current name - Government Bridge.All that remains of the first bridge is an elevated approach west of River Drive on the Iowa side, and a reconstructed pier on Arsenal Island.