Little Thompson River Bridge

United States historic place


Little Thompson River Bridge
U.S. National Register of Historic Places

Bridge in 2012.

Location	Interstate 25 service road at milepost 249.90, near Berthoud, Colorado
Coordinates	40°18′04″N 104°58′47″W / 40.30110°N 104.97978°W / 40.30110; -104.97978
Area	less than one acre
Built	1938
Architect	Colorado Department of Highways
Architectural style	camelback pony truss
MPS	Highway Bridges in Colorado MPS
NRHP reference No.	02001129
Added to NRHP	October 15, 2002

The Little Thompson River Bridge, in Weld County, Colorado near Berthoud, Colorado, was built in 1938. It was listed on the National Register of Historic Places in 2002.

It was designed by the Colorado Department of Highways, fabricated by Midwest Steel & Iron Works, and installed by contractor Gardner Brothers. The highways department specified "a rigid-connected camelback pony truss, supported by reinforced concrete abutments with angled wingwalls."

The bridge was altered by addition of flex beam guardrails around 1980.

It is located on what is now a service road for Interstate 25, at milepost 249.90, near Berthoud. It is the eastern-most of three north–south bridges at the site; the other two carry southbound and northbound Interstate 25 traffic.

In May 2021, there is ongoing construction at I-25's Little Thompson River crossing, covered in Colorado Department of Transportation photos.

References

^ "National Register Information System". National Register of Historic Places. National Park Service. November 2, 2013.
^ Colorado Historical Society's Office of Archaeology and Historic Preservation; Clay Fraser (May 21, 2002). "National Register of Historic Places Inventory/Nomination: Little Thompson River Bridge / CDOT No. C-17-N; 5WL2985". National Park Service. Retrieved April 28, 2021. With accompanying two photos from 1999
Segment 6 - Little Thompson River Bridge Columns - May 2021 and Segment 6 - Little Thompson River Bridge Columns - May 2021

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