Colorado Preservation, Inc. is a 501(c)3 nonprofit charitable organization, Federal Tax number 74-2403583

1950s

Arkansas River Bridge (1958)

Arkansas River Bridge is a 1958 riveted continuous girder bridge carrying Interstate 25 over the Arkansas River in Pueblo, Colorado. Determined eligible for the National Register of Historic Places, it is one of the preservation-priority bridges featured in Colorado Preservation, Inc.’s Historic Bridges of Colorado listing.

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Grand Avenue Bridge

The Grand Avenue Bridge in Grand Junction is a 1950 riveted girder bridge carrying SH 340 over the Colorado River. It is a preservation-priority historic bridge and an important mid-century river crossing in Mesa County.

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Boulder Creek Bridge

The Boulder Creek Bridge in Boulder County is a 1953 continuous concrete slab and girder bridge carrying SH 119 over Boulder Creek. Listed in the National Register of Historic Places, it is significant as an early unaltered example of a bridge type important to Colorado’s postwar highway development.

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North St. Vrain Creek Bridge

The North St. Vrain Creek Bridge near Lyons is a 1955 concrete rigid frame bridge carrying SH 7 over North St. Vrain Creek. Listed in the National Register of Historic Places, it is a rare rural example of its bridge type and a preservation-priority historic bridge.

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Winter Park Balcony House

Winter Park’s original base area ski lodge, known as the Balcony House, vividly represents the early history and pioneering evolution of the City of Denver’s first Mountain Park, while also fostering groundbreaking developments in the Colorado ski industry as a whole....

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