Carroll W. Diefenbach Dba Diefenbach Construction is an active carrier based out of New Columbia, Pennsylvania. Carroll W. Diefenbach Dba Diefenbach Construction operates under USDOT number 2900800. Carroll W. Diefenbach Dba Diefenbach Construction has 1 tractor and employs 1 driver. Carroll W. Diefenbach Dba Diefenbach Construction is authorized to operate Intrastate Non-Hazmat cargo.