A90 330 F Strathmartine Road Footbridge and 340 F Old Glamis Road Footbridge - Bridge Refurbishment

Descriptions

The A90 330F Strathmartine Road Footbridge and A90 340 F Glamis Road footbridge are steel/concrete composite structures of a similar structural form which span over the A90 Kingsway dual carriageway in Dundee, adjacent to Strathmartine roundabout and Glamis roundabout respectively.A90 330F Strathmartine Road Footbridge has a main span of 32.4m and a width of 1.9m whereas A90 340 F Glamis Road footbridge has a main span of 26.8m. The main span of each bridge is supported by two reinforced concrete piers at each end and the structures are accessible via stairs and ramps situated on both sides of the carriageway. The ramps consist of steel beams with reinforced concrete slabs, with expansion joints. The stairs are made up of precast concrete slabs supported by 2 concrete piers. The height of the piers varies along the length of the structure.On A90 330F Strathmartine Road Footbridge, the south ramp on the downlink is 90m long while the north ramp on the uplink is 84m, supported by concrete piers on both sides; 9 on the uplink, and 8 on the downlink. On A90 340 F Glamis Road footbridge, both ramps on either side of the carriageway are 88m long, supported by 8 concrete piers on both sides.Both structures exhibit extensive deterioration, particularly cracking and spalling of the concrete piers, and require significant refurbishment. Amey is undertaking an optioneering study with Transport Scotland in order to determine the preferred refurbishment strategy. Therefore, high-level indicative cost estimates for two refurbishment options are being sought for consideration. Please note that quotations received at this stage are non-committal and a further tender process will be undertaken once the preferred option has been agreed with Transport Scotland.