Floodwood Bridge
CSAH-8 St. Louis River Highway Crossing
Floodwood, MN

Floodwood Bridge

• Structure ID: NBI 69505
• Location: River Mile 72.0
• River Elevation: 1,230 Feet
• Highways: CSAH-8
• Daily Traffic Count: 630 (2003)
• Bridge Type: Prestressed Concrete Girder, Concrete Deck
• Bridge Length: 303 Feet, ??? Foot Longest Span
• Bridge Width: 32 Feet, 2 Lanes
• Navigation Channel Width: Non-Navigable
• Height Above Water: ??? Feet
• Date Built: 1974
CSAH-8 is a regional connector route between US-53 and US-2. In fact, when US-2 was first added to the US highway system, it followed the route of CSAH-8. US-2 was later moved to a new alignment south of the St. Louis River. This is the first highway crossing of the St. Louis River south downstream of the convergence with the Whiteface River. Those two rivers join together to form a relatively impressive waterway.

The bridge is a modern style prestressed concrete girder bridge with a reinforced concrete deck. It has the modern style slanted and solid guardrails. The only noteworthy feature of the bridge is that it is unexpectedly narrow for a county state-aid highway. At 32 feet, there is room for two standard sized lanes, and very little room for shoulders. There is also no designated pedestrian walkway, but with such low traffic levels, that probably is not a significant operational issue.

The East Savanna River joins the St. Louis River just downstream of this bridge. The East Savanna River is part of the historic Savanna Portage trail. While native Americans knew of this connection, it was the early trappers and traders that made use of the trail. One could paddle down the St. Lawrence Seaway, through the great lakes, across Lake Superior, up the St. Louis River, down the East Savanna River, across a short portage, then down the West Savanna River, across Big Sandy Lake, across a short 2000 foot portage, and then be in the Mississippi River headed towards the Gulf of Mexico. The portage was so heavily used that locks and dams were installed, and it became the first improved waterway in the new world.


Floodwood Bridge
Floodwood Bridge
Floodwood Bridge

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Photo and text by John A. Weeks III, Copyright © 2008, all rights reserved.
For further information, contact: john@johnweeks.com