This map shows the current structural condition for thousands of bridges in Oklahoma. To get started, enter an address or click on a bridge marker on the map. Click on a bridge marker for complete details about it's status. Click on the icon for more information.
Information for Bridge Tracker is provided annually by the Oklahoma Department of Transportation and the Oklahoma Turnpike Authority, and is updated as new information becomes available. Due to inaccurate coordinates on record, some bridges may not appear in the proper place on the map; however, according to ODOT, all information provided on the bridges is correct.
Oklahoma bridges are rated using the National Bridge Inventory rating scale from 0-9 rating scale. Inspectors give a rating to each of a bridge's primary elements: deck, superstructure, and substructure. The National Bridge Inventory System requires each state highway department to inspect, prepare reports, and determine load ratings for bridges on all public roads.
Bridges or culverts that carry vehicular traffic and are longer than 20 feet are part of the NBIS or NBI. Bridges or culverts that do not carry vehicular traffic or are equal to or less than 20 feet are not part of the NBIS.
Structurally Deficient: If a bridge is structurally deficient it means there are elements of the bridge that need to be repaired or monitored. A bridge labeled structurally deficient is not necessarily unsafe; it means they must be maintained, inspected and monitored.
Most deficient bridges are left open to traffic during its maintenance and repair, and if inspectors find unsafe conditions they can close the bridge or restrict it to light vehicles with lowered speed limits.
Functionally obsolete: A bridge that is functionally obsolete is not necessarily unsafe, it just means the bridge has older design features not built to today's standards. A functionally obsolete bridge is not wide enough or tall enough, so it cannot safely accommodate current vehicle sizes, weights and traffic volumes.
The sufficiency rating helps determine what bridges could need repair or replacement; it also affects the bridges eligibility for federal funding. Bridges must have a rating of 50 or below to qualify for federal replacement funds. The sufficiency rating must be 80 or below to get federal rehabilitation funding.
Oklahoma bridges are rated using the National Bridge Inventory, or NBI, 0 to 9 rating scale. Inspectors give a rating to each of a bridge's primary elements: deck, superstructure and substructure.