02/09/2026
Leeston Road culvert upgrade: complete
Our Three Waters team delivered the Leeston Road culvert upgrade project for Selwyn District Council, contracted by CORDE, installing a new 2.5m wide, 1m deep, 12.4m long concrete box culvert with new headwalls and wingwalls to reduce flood risk and increase stormwater capacity at the site.
The existing culvert stayed live throughout construction, with dewatering and environmental requirements around the waterway managed alongside the build. Even a storm partway through the project didn't stop our team from delivering on time, and Leeston Road has since returned to normal use.
See the full project: https://taggart.net.nz/our-projects