Davis Bacon wages as well as fringe benefits are determined by a listing of classifications for mechanics and laborers that are determined to be prevailing in a certain area for a certain type of construction.
You can search the current wage rates here: https://www.wdol.gov/* (formerly https://www.access.gpo.gov/davisbacon/index.html*)
The wage rates are listed there for each county of every state. Two important criteria are needed for searching the appropriate wage rates.
1) Project location
2) The type of construction, i.e. whether it is building, residential, highway, or a heavy construction project that the wage rates are needed for.
Wage rates can also be searched with wage determination number. “Mod number” shows the revisions and it is important that the wage rates included in the project documents are the most current available with revisions at the time a project goes out for bids.
If publication of any revision occurs less than 10 days prior to bid opening, and the agency finds that there is not sufficient time to notify bidders of the modification, the revision may be disregarded.
If a contract is not awarded within 90 days after bid opening, changes to a general wage determination in the contract will be effective to that contract, unless the agency receives special approval from the Department of Labor not to do so.
If no general wage determination is listed or can be found for a given county for a specific project, the federal agency funding or financially assisting the construction project shall request a wage determination under the Davis-Bacon Act by submitting a Standard Form (SF) 308 to the Department of Labor, Branch of Construction Wage Determination.