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General Information

Other name(s): Clackamas River Bridge
Completion: 30 June 1933
Status: in use

Project Type

Structure: Tied-arch bridge
Support conditions:
Function / usage: Road bridge
Material: Steel bridge
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Awards and Distinctions

1933 First Place  


Location: , , ,
, , ,
Address: McLoughlin Boulevard (OR 99 E)
  • Clackamas River
Coordinates: 45° 22' 23.82" N    122° 36' 5.58" W
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Technical Information


total length 219.46 m
main spans 42.7 m - 73.2 m - 42.7 m


cost of construction United States dollar 161 570.16


piers reinforced concrete
arches steel
deck of main bridge steel
deck of approach viaducts reinforced concrete

Excerpt from Wikipedia

The John McLoughlin Bridge is a tied-arch bridge that spans the Clackamas River between Oregon City and Gladstone, Oregon, in the northwest United States. It was designed by Conde McCullough, and named for Dr. John McLoughlin.

It is 720 ft (220 m) long, with a main span of 240 ft (73 m). The deck carries four lanes (two in each direction) of Oregon Route 99E, also known locally as McLoughlin Boulevard.

The bridge won the American Institute of Steel Construction's title of "Most Beautiful Steel Bridge" constructed in 1933. Originally painted black, it was painted "ODOT Green" soon after, the first time that specific color was used on a bridge.

Text imported from Wikipedia article "John McLoughlin Bridge" and modified on 23 July 2019 under the CC-BY-SA 3.0 license.

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