Books about Civil engineers -- Juvenile fiction

The Young Engineers in Colorado; Or, At Railroad Building in Earnest

Dave Porter and His Double; Or, The Disapperarance of the Basswood Fortune

Dave Porter's Great Search; Or, The Perils of a Young Civil Engineer

The Young Engineers in Nevada; Or, Seeking Fortune on the Turn of a Pick

The Young Engineers in Mexico; Or, Fighting the Mine Swindlers

The Young Engineers on the Gulf