M.M. Caldwell
Meridian Street Bridge (Pierce County, Washington)
Consulting engineer, 1925Through truss bridge over Puyallup River on WA 167 in PuyallupIn storage
Pasco - Kennewick Bridge (Benton County, Washington)
Built 1922Lost Cantilever through truss bridge over Columbia River on WA-397Replaced by new bridge
Wishkah River Bridge (Grays Harbor County, Washington)
Consulting Engineer, 1925Bascule bridge over Wishkah River on US 12 in AberdeenOpen to traffic