Project Details

Description

BEAR Scotland has been commissioned by Transport Scotland to undertake drainage improvement works along a 265m section of the A84 carriageway, covering a total works area of approximately 0.15ha.

The proposed works comprise the excavation and removal of an existing defective carrier pipe located at the toe of the embankment adjacent to the southbound carriageway of the A84, followed by the installation of a filter drain/ditch within the verge. Sections of carrier pipe within a layby will also be excavated and repaired, alongside the replacement of damaged kerbs and reinstatement of the layby island.

To facilitate the works, shrubs and bushes located within the existing drainage ditch and along its banks will be removed.

Main plant will include excavators, tipper, Stihl saw and pecker.

The main material will consist of filter stone, 225mm diameter perforated carrier pipe, 1050mm diameter pre-cast concrete manhole rings, D400 frame and cover, ST2 concrete, pre-cast concrete kerbs, surface & binder course.

The works are currently programmed for delivery during Financial Year 2026/27, with construction anticipated to commence in July over up to 20 days by utilising a daytime working pattern (08:00 – 17:00).

The site compound, including welfare facilities, will be located within the southbound layby on the A84 at National Grid References (NGR): NN 66876 04551, within the scheme extents. Traffic management (TM) measures will comprise closure of the layby and implementation of a lane closure on the A84, facilitated through the use of temporary traffic signals. The TM strategy will be in line with recommendations and guidance in the Traffic Signs Manual Chapter 8 (Traffic Signs Manual Chapter 8). Access to junctions and private roads will be maintained. If the programme changes, this may result in amendment to the exact TM requirements.

Location

The scheme extent is located along the A84, 3.2km southeast of the town of Callander in the Stirling Council administrative area between NGRs NN 66927 04529 - NN 66523 04623.