A737 Dalry Bypass
- Project Type Roads / Bridges
- Client Transport Scotland
- Company Involvement Roadbridge and Farrans formed a joint venture to complete the Design, Construction and Maintenance of the Dalry Bypass, the project was constructed on behalf of Transport Scotland.
- Form of Contract Transport Scotland Bespoke Contract
- Dates July 2017 – May 2018
- Location Dalry, North Ayrshire, Scotland
The A737 Dalry Bypass route is approx 3.8km in length. It starts to the north-east of Highfield, approximately 1.5km north-east of Dalry and runs in a south-westerly direction crossing the B707, Blair Road, the Glasgow to Ayr railway line and the River Garnock re-joining the existing A737 approx 600m south of Dalry.
Key Features
- 420,000m³ of Excavation
- 366,000m³ of Fill to road and environmental bund embankments
- 75,000m3 of peat replacement
- Construction of a 250m Steel Viaduct spanning the River Garnock and Ayr/Glasgow Railway
- Construction of 1 no. Overbridge at Blair Road
- Construction of 1 no. Cattle Underpass
- Installation of 7 no. Box culverts ranging in sizes
- 42,000m of drilling and 12,000 tonnes of grout used to fill the mining cavities beneath the road alignment at Highfield
- Online construction of new Roundabout and 500m of approach road at western end of the bypass
- Encapsulation of an existing Scottish Gas Networks HP main
