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- Leenaun
N59 Leenaun Bridge
Project Profile
N59 Leenaun Bridge
| Value: | €1,430,000 |
| Client: | Galway County Council, County Buildings, Prospect Hill, Galway. Contact: Mr. Sean Breathnach Ph.: 091-509000 |
| Consultant: | Roughan O’Donovan - Faber Maunsell Alliance, Arena House, Arena Road, Sandyford, Dublin 18. Contact: Mr. Patrick/Mr. Joe Kelly Ph.: 01-2940800 |
| Completion Date: | Contract Ongoing |
| Involvement: | Main Contractor / PSCS, 100% participation |
Project Description:
The project consists of the reconstruction of Leenaun Bridge which was washed away along with 20m of the N59 carriageway in July 2007 with a multi-span arch.
Works consist of the following:
- Demolition and site clearance of debris from previously existing bridge up to extent of the original foreshore.
- Provision of traffic management and diversions.
- Service diversions.
- Realignment of existing N59 and the R336 including provision for drainage and service ducts.
- Work within inter tidal zone.
- Retaining walls and slope retention works.
- In stream protection measures.
- Excavation for foundations and intermediate supports.
- Piling.
- Pier and abutment construction.
- Bridge construction: The main structure of the bridge consists of 4 No. reinforced concrete arches along the skew; they are made integral with the concrete supports and faced in natural stone masonry to match the surrounding environment. The overall length of the bridge is approximately 23m between the faces of the abutments. Each arch is 6.48m long between faces of supports. Skew angle is approximately 24o between the abutments and the parapet. The substructure is supported on piled foundations and the concrete consist of in-situ reinforced concrete pier and abutments. These are made monolithic with the superstructure.
- Construction of temporary and permanent safety barriers and guardrails.
- Pavement construction. Tie into existing Public Road. Road surfaces, kerbs and footways. Signs and Road Markings.
- Boundary treatment.
- Masonry Construction.
- Removal of Bailey Bridge.
- Reinstatement of foreshore and surrounding areas.