Project Details
Description
BEAR Scotland has been commissioned by Transport Scotland to undertake a package of scour repair works at A889 Drochaid A’Bhacain bridge. Repairs are required to rectify current and prevent further scour damage to the bridge. The package of works will include:
- Removal and reconstruction of upstream parapet.
- Underpinning upstream training wall with soluform-lined concrete bag-work.
- Repointing upstream training walls and removal of vegetation on the walls.
- Removal of vegetation deposits from the channel.
- Sprayed concrete system of repair to downstream arch and soffit.
- Concrete repairs to the upstream concrete toe.
In-stream works will be required to complete scour repairs, which are currently scheduled to commence in July 2025 and last for a duration of between 15-20 days. In-stream works will be undertaken using a dry working area. The appointed contractor will advise on the design of the dry working area prior to the works. Works will take place during daylight hours (08:00 to 18:00). The works are necessary to rectify scour damage and deterioration of the bridge and wing walls.
Traffic Management (TM) will include a temporary single lane closure with two-way traffic management system required during the deconstruction and re-building of the upstream parapet. The TM strategy will be in line with recommendations and guidance in The Traffic Signs Manual Chapter 8. It is anticipated that the site compound will be located within the TM with access to the watercourse provided from behind the existing vehicle restraint system (VRS) barrier.
Location
The scheme is located on a stretch of the A889 trunk road south of Dalwhinnie (Figure 1), within Highland council area. The scheme has the following National Grid Reference: NN 63887 83021.