All the major civil engineering firms have been in the doldrums since the housing market started going down. Many firms have been laying off staff for the past two years.
The only civil engineering firms not suffering are the ones who have diversified into government contracts (usually the small ones).
I don’t have any personal knowledge, but I heard that the Hunsaker office in San Diego had to lay off a major portion of their surveying and civil engineering personnel. This happened around last year.