Song Mayo – Ngompem road, phase I, and 12 m bridge

Works

Gravelling of the road from the D55 junction to the Ngompem Catholic mission, phase I.

Scope

Gravelled pavement, concrete pipe culverts with headwalls and sumps, concrete-lined ditches. Strengthening of a 12 m bridge: an additional steel girder alongside the existing ones and rework of the deck, wing walls, bearings, deck drains and parapets.

Milestones

1. Approval of structures — 24 March 2021
2. Provisional acceptance — 22 June 2021, one-year guarantee
3. Remaining tasks transferred to a supplementary contract (phase II)

Project narrative

The road to the Ngompem Catholic mission crosses several streams. On 24 March 2021, the supervising engineer and the contractor approved the structures to be built: concrete pipe culverts with their headwalls and sumps, concrete-lined ditches, and the strengthening of a 12 m bridge with an additional steel girder and rework of its deck and fittings. In April, the teams laid culverts, formed a deck and carried out field missions in Ngompem. On 22 June 2021, the acceptance committee chaired by MINEPAT pronounced provisional acceptance of phase I. The remaining works were assigned to a supplementary contract, the second phase of the same road.