Summary Glued laminated timber bridges are used more and more nowadays but knowledge of their long-term behavior is still not satisfactory. This review shows critical details of wooden bridges with regard to durability. Although some of them are very common, there is still a need to improve their properties to limit the effects of high moisture content. Terraces are often physically and chemically protected against external biological attack but environmental concerns have raised doubts about the use of toxic chemical treatments. In addition, it is known that the level of mechanical prestress decreases over the service life. All these issues must be investigated to ensure technical lifespan.Keywords: Stress laminated timber decks, durability, water traps, moisture content, tension level, lifespan.IntroductionDurability of wooden bridges is a key factor for their design. Wooden bridges in the EU should generally have a minimum lifespan of 100 years and we have good examples of well-designed and durable bridges. In this article, a review is made of stress laminated timber decks with particular attention to the risk of high humidity. in bridges, use of preservatives, loss of prestress, local damage, maintenance and poor detailing. All of these are relevant in terms of sustainability. Glulam decking was first used in Canada in the late 1970s and later in the United States and the Nordic countries of Europe. The wood slats are held together by pre-tensioned rods which are usually inserted into pre-drilled holes at the middle depth of the deck. The prestressing generates a lateral stress between the lamellas which then function like a plate due to the friction between the lamellas. lame...... middle of article ......Kepp, T. Dyken, (2013), “Contribution to Structural Details on Timber Bridges”, in Proceedings of the International Timber Bridges Conference ( ITCB2013), Las Vegas, Nevada, United States.[7] O. Kleppe, (2010), “Sustainability of Norwegian wooden bridges”, in Proceedings of the International Wooden Bridge Conference (ITCB2010), Lillehammer, Norway, pp. 157-168.[8] A. Lawrence, (2008), “Modern wooden bridges: an international perspective”, Structural Engineer, vol. 86, no. 18.[9] A. Pousette, (2011), “Structural systems – infrastructure”, Design of wooden structures, Swedish Wood, ed.[10] Statens Vegvesen, (2011), Håndbok 018 - Vegbygging.[11] R. Crocetti, R. Kliger, (2010), “Anchorage systems to reduce prestress loss in laminated timber bridges”, in Proceedings of the International Timber Bridge Conference (ITCB2010), Lillehammer, Norway, pp.. 359-370.