coldstream-concrete

East Marsh Pumping Station: Precast Concrete Upgrades for Windsor Flood Control

Mon, 31 Aug 2026 20:04:05 GMT

In 2026, Coldstream Concrete partnered with the City of Windsor to upgrade the existing East Marsh Pumping Station. The project mitigates flooding across the city and improves storm protection during extreme weather events, a growing concern as Lake St. Clair water levels rise.

What upgrades were made to the East Marsh Pumping Station?

The station received several upgrades to strengthen local flood control:

New pumps : smaller units handle routine dry-weather flows efficiently
Precast discharge chamber : prevents high lake water from flowing back into the system
Expanded outfall piping : sized for the higher lake levels driven by climate change
Rock spillway into Lake St. Clair : slows outgoing water and protects against shoreline erosion

Coldstream Concrete supplied the precast discharge chamber.

From cast-in-place to precast concrete.

Originally intended to be cast-in-place, the discharge chamber was redesigned as a precast unit by Coldstream Concrete.

Precast allowed the contractor to accelerate their schedule and provided protection against weather events which could affect onsite build timelines and quality.

The redesign carried the standard precast advantages that accelerate a build:

Production runs parallel to site preparation instead of waiting on it
Curing happens in a controlled plant environment, not exposed to weather
Significantly less on-site labour

What did the new precast design consist of?

Coldstream Concrete supplied a 4.052 m × 4.52 m × 4.6 m deep precast chamber , assembled from four precast units. The heaviest section weighed 39,102 kg (39.1 tonnes) .

Large-diameter stainless steel sleeves were cast directly into the chamber walls, allowing a fast connection to on-site piping. The result speeds up the project timeline without giving up the tie-in flexibility that cast-in-place normally provides.

Project status

The East Marsh Pumping Station project is roughly 50% complete, with completion estimated for November 2026. Coldstream Concrete is glad to provide critical infrastructure that helps prevent flooding for Windsor residents, and looks forward to finishing the project.

Read more about the East Marsh Pumping Station Upgrades Project on the City of Windsor website, or browse our other precast concrete infrastructure projects.

Bradley Avenue Extension

Fri, 10 Jul 2026 20:01:34 GMT

Last year Coldstream Concrete had the honour of joining The Bradley Avenue Extension as well as The Bradley Avenue Extension & White Oak Tributary Complete Corridor projects in London, Ontario. As part of this London, Ontario road construction initiative, these projects were designed with the purpose of increasing the number of driving lanes, supporting future development in the area, creating a heavily upgraded and naturalized drainage channel to manage stormwater, and improving overall landscaping and sidewalks.

How did Coldstream Concrete Contribute?

The Bradley Avenue Extension & White Oak Tributary Complete Corridor project in London, Ontario is a major infrastructure improvement spanning from Wharncliffe Road South to Jalna Boulevard. The project includes several complex structural elements, highlighted by a large precast open-bottom culvert system constructed in two stages. This project marks a significant milestone for Coldstream Concrete, as it represents the largest span culvert ever manufactured by the company and one of the largest precast culvert systems ever constructed in the region. The installation featured two 41.4 m runs of precast footings, and at the heart of the project, a 40.8 m long open-bottom culvert with an impressive 16.2 m span and 2.413 m rise , made up of 36 precast units weighing 42.7 tonnes each . The south half of the culvert system was successfully installed in Fall 2025, followed by the north half in Spring 2026.

Why was Coldstream Concrete & Precast Concrete Chosen?

Coldstream Concrete's specialization in precast concrete made the company an ideal fit for this project. Because precast units are manufactured off-site at Coldstream's own facility rather than cast on location, the Bradley Avenue job site required less space for formwork and staging. Installation time was significantly reduced compared to a cast-in-place approach.

Ongoing Development

While Coldstream Concrete's involvement in the precast culvert production & installation phase has been completed, both the Bradley Avenue Extension and the Bradley Avenue Extension & White Oak Tributary Complete Corridor projects are set to continue development as part of London's broader infrastructure plan.

Click here for more information on The White Oaks Tributary Complete Corridor , here for The Bradley Avenue Extension ,

or here if you're interested in Coldstream Concrete’s other highlighted projects.

County Road 31 Culvert

Mon, 14 Apr 2025 17:39:15 GMT

The removal and replacement of the Irwin drain culvert was successfully completed in November 2024 by Jones Group Inc. at the intersection of County Road 31 and County Road 8. Coldstream Concrete Ltd. was hired to manufacture and deliver 23.2 meters of a 5.0m x 2.8m box culvert. The precast concrete culvert was designed with custom features, including skewed ends, recessed connection plates, approach slab seats, and integrated infill sections, all cast directly into the culvert units. The entire culvert installation was efficiently completed in a single day.

Paris Meadows Subdivision

Mon, 14 Apr 2025 17:37:23 GMT

This vibrant community hub, spanning 57.5 hectares, includes 309 residential lots and 14 commercial/industrial blocks, providing homes for around 1,000 residents. The land was developed into eight streets, with the addition of a new pumping station and a 6-cell stormwater management pond. Featuring a wide range of Coldstream Concrete’s standard products, we successfully installed 3.5 kilometers of reinforced concrete pipe ranging from 300mm to 1800mm in diameter, multiple outlet headwalls, and over 350 round and square precast structures.

Western University Steam Tunnel

Mon, 14 Apr 2025 17:33:02 GMT

This multi-year project, which began in 2023, is now entering its third year of construction. The project is being completed in phases with the assistance of London-based installation contractors. Every effort has been made to minimize any disruptions to students studying on campus. Phase 1 involved the installation of 64 meters of 1.5m x 0.9m steam tunnel with removable concrete lids. Phase 2 is currently in progress and, once finished, will extend the tunnel by an additional 130 meters, including the addition of a new hub to direct steam in four directions. To date, Coldstream Concrete Ltd. has produced 79 tunnel segments and 68 lids.