NIDCO Bridges Reconstruction Programme
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CLIENT: National Infrastructure Development Company Limited (NIDCO) The Atrium, Don Miguel Road Extension, El Socorro, Trinidad W.I LOCATION: Various Locations in Trinidad START DATE: September 2015 COMPLETION DATE: Ongoing |
Alpha was engaged by NIDCO, on behalf of the Ministry of Works and Infrastructure Trinidad, as part of their Bridges Reconstruction Programme (Phase 2), to execute engineering designs and carry out construction supervision under Design Package D, comprising six (6) No. bridges located on the southern side of the island. The design phase is 100% completed.
The scope of work includes:
The scope of work includes:
- Site reconnaissance, data collection and review of existing information.
- Topographical surveys and establishment of control points.
- Geotechnical investigations and geotechnical report to determine groundwater flow, slope failure analyses, pile analyses and contributing factors.
- Site investigations to determine the existence of pipelines, existing utilities and the need for relocation from the vicinity of the works.
- Initial assessment of location of bridge diversion works and/or feasible route diversions.
- Structural final designs in accordance with the AASHTO LRFD design code (2010).
- Cadastral surveys/right of way re-definition surveys and definition of the watercourse reserves.
- Geometric designs per AASTO codes for vertical and horizontal alignment.
- Drainage design (hydrological and hydraulics) to cater for the 50 Yr. recurrence intervals storm, including catchment analysis, flood level determination for bridge height determination with freeboard requirements; scour protection; river training works upstream/ downstream of the bridge and localized drainage works.
- Road/embankment and structural abutment designs including associated works.
- Pavement designs including deck and road approaches.
- Utility relocation report including drawings showing exclusion zone for the work and liaison with utility companies, regarding relocation and impact of temporary diversion roadworks.
- Environmental assessment report.
- Preparation of tender documents inclusive of the FIDIC Red Book contract; specifications, bills of quantities.
- Tendering and tender evaluation analysis and report.
- Supervision of construction and implementation of guidelines and policies set forth by MOWI and NIDCO.