Dovetail joint box work. It offers the strength found in the dovetail joint but is totally hidden from both outside faces by forming the outer edge to meet at a 45-degree angle while hiding the dovetails internally within the joint. The mitred corner dovetail joint is very similar in design, but it has just a single dovetail and is used for picture frames and other similar joins. The secret double-lapped dovetail is similar to the secret mitred dovetail, but presents a very thin section of end grain on one edge of the joint. Used for carcass and box construction to hide the
Mitre Line announced the construction of a viaduct for the Retiro–Tigre branch of Mitre Line. The viaduct would extend along the city of Buenos Aires, from Dorrego Avenue in Palermo to Congreso Avenue in Núñez. Works began in September 2017, and when the viaduct is finished, eight level crossings will be removed. Trains will run elevated for a total of 3,9 kilometers. The project also includes a total refurbishment of Lisandro de la Torre and Belgrano C stations. Current Mitre Line services as of February, 2015: Mitre Line The Mitre line is an Argentine broad gauge commuter rail service in Buenos Aires