Pasadena in Los Angeles County, California — The American West (Pacific Coastal)
Colorado Street Bridge
Historic Civil Engineering Landmark
Waddell & Harrington of Kansas City, Missouri, designed the Colorado Street Bridge in 1912. J.D.Mercereau Construction of Los Angeles was the contractor. Dedicated and opened to traffic on December 13, 1913. Designated as a Historic Civil Engineering Landmark by the Los Angeles section of the American Society of Civil Engineers in 1975, and as a Cultural Heritage Landmark of the City of Pasadena in 1979, it was placed on the National Register of Historic Places by the National Park Service in 1981.
Designed as a series of large parabolic arches, the structure includes five spans of 133 feet at the base, one span of 114 feet, and one span of 233 feet, with six small girder spans in the form of arches and abutments at each end.
Under the bridge, between piers 9 and 10, is a smaller bridge, the Parker-Mayberry Bridge, a three-span arch concrete structure, built in 1914 to accommodate local traffic across the Arroyo Seco.
The Colorado Street Bridge was the first street level crossing linking Pasadena and Los Angeles and was a link in the transcontinental highway system called the National
Dedicated: 1913. Presented: 2013.
Erected 2013 by American Society of Civil Engineers.
Topics and series. This historical marker is listed in these topic lists: Architecture • Industry & Commerce • Roads & Vehicles. In addition, it is included in the Historic Civil Engineering Landmarks series list.
Location. 34° 8.707′ N, 118° 9.794′ W. Marker is in Pasadena, California, in Los Angeles County. Marker is on Colorado Boulevard 0.1 miles west of Orange Grove Boulevard, on the left when traveling west. Located near the east end of the bridge on the south side. Touch for map. Marker is at or near this postal address: 504 W Colorado Blvd, Pasadena CA 91105, United States of America. Touch for directions.
Other nearby markers. At least 8 other markers are within walking distance of this marker. Richard H. Chambers United States Court of Appeals Building (about 600 feet away, measured in a direct line); Pasadena Founders Monument (about 700 feet away); Lt. Orrin Russell Fox Heliport (about 700 feet away); Pasadena Pioneers Bridge (about 700 feet away); Fenyes Estate (approx. 0.3 miles away); History of Ambassador Gardens (approx. 0.3 miles away); Merritt Mansion (approx. 0.3 miles away); Ambassador Auditorium (approx. 0.3 miles away). Touch for a list and map of all markers in Pasadena.
Credits. This page was last revised on December 7, 2020. It was originally submitted on December 6, 2020, by Craig Baker of Sylmar, California. This page has been viewed 41 times since then and 8 times this year. Photos: 1, 2, 3, 4, 5, 6. submitted on December 6, 2020, by Craig Baker of Sylmar, California. • J. Makali Bruton was the editor who published this page.