Västerbron [SEP] material used
It was built at the same time as Västerbron over Riddarfjärden and forms a continuous structure with it, both bridges having the same width and being made entirely in steel. It was the first major bridge in Sweden with a welded steel superstructure.
Two much smaller bridges allow cars and pedestrians to reach Långholmen, where the former Långholmen prison area have been transformed into a popular recreational area. The space under the bridge is being used for parked trailers in summer while acting as winter quarters for boats during the dark season.
to cathodically protect metals that are exposed to sea water. A zinc disc attached to a ship's iron rudder will slowly corrode while the rudder stays intact. Similarly, a zinc plug attached to a propeller or the metal protective guard for the keel of the ship provides temporary protection.
With a standard electrode potential (SEP) of −0.76 volts, zinc is used as an anode material for batteries. (More reactive lithium (SEP −3.04 V) is used for anodes in lithium batteries ). Powdered zinc is used in