20241 Avalanche Defences in Kubbi Ísafjörður — Production of Snow Bridges, for Ísafjarðarbær

Magn eða umfang

The project involves production (design and build) of snow bridges (a.k.a. supporting rigid steel structures) from approx. 450 tons of steel, i.e. 1890 m of steel bridges with height range of Dk = 3,0 m, 3,5 m, and 4,0 m) and 660 ground plates (174 m2).The snow bridges are supporting structures, which purpose is to increase the stability of the snow pack in the avalanche starting zones thus preventing avalanches.The product is to be delivered at Ísafjörður (DDU-Incoterms 200) in three deliveries of similar size over the next three years.The first year delivery will be abt. 20 % of the contract amount and shall include: 200 pcs. of 300×300 mm ground plates, 50 pcs. 635×630 mm ground plates and 30 pcs. 800×800 mm ground plates, 200 pcs., of hot dip galvanized anchors (Gewi 20 soil nail) with the length of 0.5 m and 50 pcs., with the length of 1 m. Furthermore, the first delivery shall include 300 pressure anchors and anchor heads along with the bolts, nuts and washers needed for installation of anchors.The same amount of tension anchors is needed. The first delivery shall be delivered before 1.6.2016. The second and third year deliveries (abt. 40 % each year) shall be mostly delivered before 15th of May each year but also other deliveries during each summer in accordance with terms of deliveries described in the contract documents. The quantity of steel in each delivery is similar but to be detailed further during contracting period and in accordance with installation schedule. The Installation of the snow bridges will begin in the summer of 2016.This phase of the project, including installation, is scheduled to be finished by fall of 2018.Quantities:Snow bridges (Dk 3,0 m) — 1 396 mSnow bridges (Dk 3,5 m) — 84 mSnow bridges (Dk 3,5 m N = 3,2) — 350 mSnow bridges (Dk 4,0 m N = 3,8) — 58 mEnd reinforcement — 11 mGround plates (300×300 mm) — 390 pcsGround plates (635×630 mm) — 140 pcsGround plates (800×800 mm) — 130 pcsInstallation assistance/guidance work shall be included, approx. one week each year. Further details of product quantity in each delivery will be specified in the contracting stage.