The Colorado Street Bridge also known as Bridge No. L-8803 is a masonry and brick arch bridge in Saint Paul

Saint Paul, Minnesota

Saint Paul is the capital and second-most populous city of the U.S. state of Minnesota. The city lies mostly on the east bank of the Mississippi River in the area surrounding its point of confluence with the Minnesota River, and adjoins Minneapolis, the state's largest city...

, Minnesota

Minnesota

Minnesota is a U.S. state located in the Midwestern United States. The twelfth largest state of the U.S., it is the twenty-first most populous, with 5.3 million residents. Minnesota was carved out of the eastern half of the Minnesota Territory and admitted to the Union as the thirty-second state...

's West Side neighborhood. It is 58 feet (17.7 m) wide and consists of a single oblique span of 70 in 6 in (21.49 m) that was built with the arch courses running parallel to the abutments, leading to a weaker structure than other skew arch

Skew arch

A skew arch is a method of construction that enables an arch bridge to span an obstacle at some angle other than a right angle. This results in the faces of the arch not being perpendicular to its abutments and its plan view being a parallelogram, rather than the rectangle that is the plan view of...

 construction methods, known as a false skew arch. It was designed in 1888 by Andreas W. Munster of the Saint Paul Engineer's Office and is now restricted to pedestrian traffic.