Flood Mitigation & Retaining

Esmerelda Street Flood Mitigation

MAP Projects was engaged by Tauranga City Council to complete a fiddly floodwall and flood mitigation project on a negotiated basis. The Esmeralda Flood Mitigation Project involved the placement of some 168m of Redi-rock flood wall up to 4m in height.

The works also included the placement of significant areas of rock protection, stream channeling Gabion baskets and services locations...

Nanako Stream Stormwater Upgrade

MAP was engaged by Tauranga City Council in a multi staged ECI with the aim to effectively manage stormwater catchments, mitigate potential flooding events, improve water quality and accommodate future planned developments in the area. The completed B1/2 Separable Portion involved upgrading the existing Kennedy Road embankment to meet current dam safety design standards, reduce the risk of dam failure and provide flood mitigation. The project installed a 2...

Waikato River Works

MAP Projects was engaged by Hamilton City Council to complete 3 portions of work on the Waikato River in November 2020

Portion one consisted of the manufacture and install of a steel log deflector to protect Hamilton East bulk water main from river debris. 2x 17m piles were driven from a floating crane into the riverbed to secure the structure. The deflector also served as a new collection point for the irrigation pumps delivering water into the adjacent Hamilton gardens...

Linton Watercourse and Stormwater Network Realignment

In 2021 MAP Projects completed a swale diversion project for Linton Military Camp. The diversion was required to enable future vertical construction within the camp. Key to the project was the excavation and shaping of 400 metres of swale nearing five metres deep...

Wairakei East Wetland (Pond G) Construction

MAP Projects was engaged by Tauranga City Council to undertake the construction of stormwater swales and a wetlands area comprising of around 250,00m3 of earthworks and over two kilometres of access track. Culverts in four different locations were installed with a portion of the work, both earthworks and structures, undertaken below the water table.

This is a large scale project that has run smoothly in consultation with the client and its representatives and where any design issues once encountered have been dealt with in a spirit of mutual cooperation with a view of delivering the best solution within the available budget

The earthworks comprised of roughly 250,000m3 of sand and topsoil handled and reshaped with 10,000 m3 of fill area...

Kaituna River Re-Diversion

MAP was engaged by JSwap Contactors to complete the structures work on the Kaituna River Diversion near Maketu, Bay of Plenty. This involved a large box culvert bridge structure through a body of water, concrete boat ramp, and timber jetties.

To construct the bridge MAP first installed approximately 250m of sheet pile coffer dam and pumped the work area dry...

Waitangi Stream Remediation and Erosion Protection

The Waitangi Stream is controlled by the Bay of Plenty Regional Council and is used to control levels in Lake Ōkāreka. In late 2017 flows were increased beyond the streams capacity causing major scouring of one stream section, putting houses above at risk and damaging the natural environment.

The site was accessed via a private road which was owned by a number of concerned land owners...

Omokoroa Stormwater Pond and Earth Dam

Completed in 2019, the Omokoroa SW Pond 02 for Western Bay of Plenty District Council involved construction of a 9m high by 80m long stormwater detention dam and levelling 5 ha of subdivision lots as the dam fill. The site was large, sloping and involved conditioning various types of soils to enable placing and compacting engineered fill for the Dam embankment and the Classic Builders residential subdivision. Approx...

Paeroa Main Drain inlet upgrade

This project upgrade works required the supply and installation of precast panels, sheet piles, new screens, and pouring insitu concrete slabs as follows;

• The work involved excavation and placement of a temporary bunding in the stream reinforced by sheetpile behind. There was a significant volume of excavation, shaping and backfill required on this project and all unsuitable was carted to dump and replaced with better quality quarry material.
• Construction of new screens, hand rails, gates and access platforms was completed in conjunction with CMC engineering and Coastal Sandblasting...

Oroua River Stop bank Upgrade

This project for Horizons Regional Council consisted of the upgrade of almost 3km of stopbanks along the Oroua River for flood control and mitigation. It included some 50,000m3 of earthworks to reconstruct and partial relocation of 4km of stopbank on the Oroua River. Appropriate material was cut from adjacent river edge and compacted to new design profile...