The council created a special committee to look at the causes of the collapse over the protest of the city's mayor.

But the overall condition of the state's roads and bridges remains better than the national average.

A $125-million segment of the eventual $500-million urban project requires full-scale dredging and capping of one site area and restoration of another.

With the acquisition, consultant WSP USA extends its reach in the water and environmental sectors in the West.