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Browntown Trail Bridge

Pratt Through Truss Bridge over Pecatonica River
Browntown, Green County, Wisconsin

Click the Photo Above to See All Photos of This Bridge!
Name Browntown Trail Bridge
Built By Chicago, Milwaukee & St. Paul Railway
Contractor Unknown
Currently Owned By Green County
Length 440 Feet Total, 120 Foot Largest Span
Width 1 Track, 2 Trail Lanes
Height Above Ground 10 Feet (Estimated)
Superstructure Type Pratt Through Truss and Trestle
Substructure Type Stone Masonry and Timber Pile
Date Erected 1888, East Spans Added 1931
Date Fabricated (East Spans) 1886
Original Location (East Spans) Bridge #B-256; Spring Green, Wisconsin
Traffic Count 0 Trains/Day (Bridge is a Trail)
Current Status Rails to Trails
MILW Bridge Number F-182
Significance High Significance
Documentation Date March 2015


One of the most unique bridges in Southern Wisconsin, this bridge was built at multiple times.
The original bridge at this location was a wooden truss span, built in 1881.
In 1888, two spans of 5-panel, pin connected Pratt Through Truss (Spans #1 and #2) were built to replace the wooden bridge. These spans were approached by a long wooden trestle, and contained a lattice portal bracing.
While the bridge with two spans was originally more than enough to cross the river, a second set of spans was added in approximately 1931.
These spans were likely built in 1886 at Spring Green, Wisconsin to cross the Wisconsin River. Span #3 was a 6 panel, pin connected Pratt Through Truss with a button type portal bracing.
Span #4 is a 7-panel, skewed Pratt Through Truss identical to span #3. This span also contains button style portal bracing.
Currently, the bridge contains these four spans. The 1888 spans are the western set of spans, while the relocated spans are the eastern spans. The eastern spans rest on stone substructures, built in 1881; while the relocated spans rest on timber substructures. A short trestle approach exists on the east end.
It is unknown why the bridge was rebuilt in 1931. The Milwaukee Road archives provided information on a repair of this bridge in 1931, indicating it might have been flooding related.
Overall, the bridge appears to be in good condition. This is one of several former Milwaukee Road bridges now on Wisconsin State Trails. Due to the age and relocation history of this bridge, it should be considered a gem on the trail system.

The author has ranked this bridge as being highly significant, due to the historic nature of these unique trusses.
The photo above is an overview. The bridge can be seen from WI-11, which runs parallel.

Pecatonica River Railroad Bridges
Upstream Pecatonica River Trail Bridge #7
Downstream Jane Addams Trail Bridge



Detail Photos from March 2015

Citations

Source Type

Source

Build Date (West Spans) Milwaukee Road Archives at the Milwaukee Central Library
Build Date (East Spans) Based on identical spans
Railroad Line History Source ICC Valuation Information, Compiled by Richard S. Steele