» Oklahoma Department of Transportation - Provides departmental organization and contacts, aeronautic, highway, public transportation, railroad, and waterway information, contracts, proposals, and construction standards and specifications as well as public service information and links to related
» Oklahoma Turnpike Authority - Provides organizational history and background information, turnpike maps, engineering drawings, and extension information, toll collection reports, and information and contacts for the PikePass automated toll collection system.
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