The manager ir N.D. van Driel is since 1967 active in al parts of engineering, building and maintenance of movable bridges. Bruggenbureau Van Driel has done much development on controlling and maintenance for government services. This large amount of experience puts a stamp on the quality of the contructions. For that purpose the bottoms of the bridge decks are flat to prevent the construction for corrosion. In 1991 this company became private and from this point civil, mechanical and electronical engineering became integrated. From the beginning Van Driel Mechatronica is concerned with automation of bridge control. Sensor techniques make fully automatic control posible. Because Van Driel has many experiance in new and rebuilding movable bridges, Van Driel Mechatronica has become active in special constructions and new developments.