More than 94 percent of Colorado’s major vehicle bridges are considered Not Structurally Deficient.
Structurally Deficient bridges do not meet minimum standards for condition or load-bearing capacity. They also often have one or more damaged or deteriorated structural members, such as a girder, truss or deck.
The condition of Colorado’s bridges is among the best in the nation. This is because a portion of your motor vehicle registration fee goes toward keeping Colorado’s bridges safe.
Additionally, CDOT formed the Colorado Bridge Enterprise (CBE) in 2009 to finance the repair, reconstruction and replacement of bridges in poor condition.
Improvement in bridge condition from 2011-14 is primarily due to replacements funded by the Bridge Enterprise. Like replacement, preservation and repair are important components of ensuring bridge quality. As of early 2015, 84 bridges have had preservation or repair work completed, and 102 bridges are under construction for preservation or repair. In addition, there are 237 bridges for which preservation or repair work is planned through state fiscal year 2015. This includes work such as repairing or replacing bridge expansion joints identified as leaking; installing waterproofing membrane on decks that have asphalt overlays but no such membranes; and sealing bare concrete decks.
A list and map of current FASTER bridge projects can be found here.
Bridge Condition Map Note: Users of Internet Explorer should update their browsers to IE9 or use Google Chrome, Firefox or another browser to view map.
The tunnel maintenance program tracks CDOT progress in maintaining tunnels on the State Highway System. A letter grade is given every year on maintenance activities at the Eisenhower-Johnson and Hanging Lake tunnels on I-70. Maintenance on these aging tunnels includes tunnel washing and sweeping, ventilation maintenance, snow removal, emergency response and round-the-clock television surveillance.
Although CDOT’s tunnel infrastructure is aging, in the 40 years the Eisenhower-Johnson Memorial Tunnel has been in operation there have been no traffic fatalities. More than 30 million vehicles have traveled the tunnel since it opened on March 8, 1973.