3 links
OKHighways.com
okhighways.com
Includes photographs, route guides, and focus pages covering Oklahoma City and Tulsa.
Oklahoma Department of Transportation
okladot.state.ok.us
Provides departmental organization and contacts, aeronautic, highway, public transportation, railroad, and waterway information, contracts, proposals, and construction standards an…
Oklahoma Highway History
kinsler.com
Includes relevant information on bridges and U.S.-numbered routes.
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