Tender: Construction of Box Culvert Regulators at Yanga National Park (1ES 5‑bay & 1AS 8‑bay)

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Construction contractor needed to demolish and replace two regulators at Yanga National Park: 1ES (5‑bay box culvert regulator) and 1AS (8‑bay box culvert regulator). Works for both include demolition and disposal of the existing regulator including superstructure, wing walls, base slab and any foundations, and construction of box culvert units comprising 1 x 1.2m length and 2 x 2.4m length units (2.4m x 1.8m). Deliverables include gates, actuators, walkway, fishway, wearing surface, guard rails and rock beaching, with temporary works specified for 1AS.