Colorado drivers are wondering why more than 100 bridges that are among the worst in the state are still waiting for repairs.

The bridges are among 121 that need repairs. So far, only six have been completed.

The projects are funded by higher vehicle registration fees, fines for registration and bonds. Transportation officials say some of those projects have to wait in line while the worst of the worst bridges are fixed first.

According to the Pueblo Chieftain ( ), Colorado Department of Transportation chief engineer Tim Harris says the state has to consider the availability of other access routes in the event that a bridge becomes impassable and other factors to determine which bridges get fixed first.