The City of Coronado has attempted to have a tunnel built from the Coronado bridge to the San Diego Naval Base numerous times, and hired Ledford Enterprises to help with the lobbying process in 2002 and 2006. The city endorsed a proposed study in 2004 to determine possible alternatives to resolve the traffic issues, which included keeping the status quo. On June 8, 2010, Coronado voters decided against Proposition H, which would have advised the city to undergo further investigation into building a tunnel between the Coronado bridge and the San Diego Naval Base. This concluded ten years of studies and proposals by the city of Coronado to find a way to reduce traffic to the naval station during rush hour. Critics of the proposal did not believe that the tunnel would resolve the traffic issues. Following this, the Coronado City Council voted to abolish the Tunnel Commission.