Allen Williamson Bridge

{{one source|date=September 2013}}

{{Use mdy dates|date=April 2025}}

{{Use American English|date=January 2025}}

{{Infobox bridge

| bridge_name = Allen Williamson Bridge

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| carries = Road traffic

| crosses = Cimarron River

| locale = Ripley, Oklahoma

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| material = Concrete

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| inaugurated = December 31, 1974

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| coordinates = {{coord|36.0277|-96.9078|region:US-OK|display=inline,title}}

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Allen Williamson Bridge is the name of a memorial bridge in Payne County, Oklahoma, named after a former State Representative who served in the Oklahoma State House of Representatives from 1966 - 1974. This politician should not be confused with a similarly named Oklahoma State Senator. The bridge carries Oklahoma State Highway 108 over the Cimarron River just north of the town of Ripley and {{convert|2.5|miles|km}} north of Oklahoma State Highway 33.[http://newsok.com/article/2044844 "Road, Bridge Names Honor for People." Oklahoman. October 30, 1983.] Accessed August 14, 2016. It is accompanied by a monument on one end of the structure and a memorial plaque placed by the Cimarron Valley Historical Society. The bridge was dedicated on December 31, 1974. The location is marked by steep rust-colored hills overlooking the Cimarron River, populated by a medium coverage of trees and other foliage. The bridge is of moderate size and of concrete construction, serving as a conduit for a two-lane highway.{{cite web|title=Allen Williamson Bridge |url=http://www.okladot.state.ok.us/memorial/legal/sh108.htm|publisher=Oklahoma's Memorial Highways & Bridges |accessdate=10 December 2010}}