MACROOM BYPASS - IRELAND
PROJECT OVERVIEW
The N22 Macroom Bypass project features the construction of a 22km dual carriageway, constructed offline of the existing N22. The project has 130 structures including river crossings, road underbridges, culverting and underpasses. Asset International Structures Ltd secured 29 asset VSoL wall structures totalling approximately 10,000sqm of cross panel, along with 12 asset BEBO arch culverts with precast head and wing walls. The asset BEBO arch structures form flood relief culverts for flood balancing on either side of the main highway.
PROBLEM SOLVED
The asset BEBO arch provided cost savings to the project as a result of less precast material being needed. The asset BEBO bottomless culvert reduced the requirement for in-situ concrete, and provided a fully modular precast culvert system to benefit program and plant requirements. To help improve health and safety onsite, AIS offered the asset BEBO arch units with waterproofing already applied to concrete surfaces prior to delivery to site. This ensured that the process could be carried out efficiently in a controlled factory environment. It eliminated the need for working at height, as well as the associated health and safety risks.
ESG
The asset BEBO solution offered carbon savings for the project due to the reduced number of culvert crossings, leading to less material requirements. The environmental benefit (compared to the alternative solution) was a key factor in the adoption of asset BEBO for this project. The asset VSoL walls also reduced the site program and added social benefit to the scheme by reducing the environmental impact on the local community. The solution eliminated the need for onsite activities such as concrete pours which would have increased site traffic and noise pollution to the surrounding community.
Environmental Product Declarations (EPDs) for both our asset BEBO Arches (GWP Total: 435kg CO2 per 1m3) and VSoL Retained Earth Wall Systems (GWP Total: 278kg CO2 per 1m3) enable us to demonstrate our commitment to carbon reduction within our concrete products.
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