Coldstream concrete Projects
Clare Ave Extension
In the fall of 2015 Coldstream Concrete supplied a project to Gibbons Contracting Ltd in the City of Welland, Ontario. It consisted of a double run – open bottom box culvert with a span of 7.316m and a rise of 1.524m. The 9.0m wide road joined two subdivisions together in an area with extreme high water tables and poor soils. This all precast job consisted of 24 precast footing units, 24 precast open bottom box units and 8 different sized wing wall units.
The total precast installation time in late fall was 3 days.
Bridge 417 – Thompson Line
Central Elgin County
On October 15, 2015 Coldstream Concrete supplied an open bottom precast culvert that had a 11.5m span and 3.5m rise to the County of Central Elgin. Relatively dry conditions were very helpful during the installation due to the size of the watercourse and excavation. The culvert consisted of 15 units to create a 16m wide roadway. This single structure replaced a design for a dual box culvert. This is turn reduced the total project cost and created better watercourse flow. Coldstream also supplied precast concrete footings.
The total installation time for footing and bridge elements was under 2 day.
Chinnick Drain and Pump Station
Mun. Chatham Kent
In June 2015 Coldstream Concrete supplied 2 large pump stations that were 7.2m x 3.8m x 6.2m deep to the Chinnick Drain and Pump project in the Municipality of Chatham Kent. These chambers house pump intakes and collect water from the Chinnick Drain which is then pumped into Lake St. Clair. The entire one end was open to receive water from the drain. Due to the high water levels buoyancy issues had to be considered. The 3 walled chamber caused structural problems. This was remedied by inserting 25m rebar into preformed vertical tubes that extended through all the riser sections, base and cap. This created horizontal and vertical reinforcing grid and joined all the elements together. Each chamber consisted of 9 units. All 18 united were installed in the winter with water issue over 1.5 days.
PRECAST CONCRETE INLET TRENCH
On May 23, 2018 Coldstream Concrete Ltd. supplied a seven-piece precast concrete trench complete with approach slabs and maintenance chamber to the Ormston Subdivision in Kitchener, Ontario. The trench and all of its components were constructed using epoxy reinforcement and came equipped with concrete corbels on either side to support the precast approach slabs. Each trench piece has 6 separate galvanized steel angles cast into the concrete corners for protection and roadway grating.
The trench was installed and backfilled in less than two days.
PRECAST CONCRETE CULVERT
On July 11th Coldstream Concrete Ltd. supplied a 12-piece “all skewed box culvert” for the town of Plympton-Wyoming. Each piece of he 3.6m span by 2.1m rise box culvert was constructed on a 30-degree skew. This was done in order to avoid large/heavy end units which are typical for precast skewed end culverts. Due to the fact that all pieces where designed to the same physical dimension (without large heavy end units) all 12 pieces were installed quickly and safely by 2pm the day they were delivered.
On June 19th 2018 Coldstream Concrete Ltd. supplied a ten-piece open-bottom precast concrete culvert to Wayne Schwartz Construction Ltd. (Miller Group) in Grey County, Ontario.
The culvert spans 5.5m and sits 2.5m tall. In typical precast fashion it was installed in less than one day, resulting in shorter road closure times for the public.
The second phase is set to be installed in mid August which includes a second precast culvert with similar properties of 10 + 590.
On September 14, 2018, Coldstream Concrete Ltd. supplied a large box culvert (6m span x 2.4m rise) to the Municipality of Lambton Shores. The culvert consisted of 8 standard box units weighing 83,400 lbs each, and 1 end unit with a skew of 35o weighing 87,600 lbs. The skewed end unit was surrounded on both sides by the London Boulder Block retaining wall system (also produced by Coldstream Concrete). This system always provides an easy and decorative finish to any culvert. All 9 pieces were installed in half a day, and back-filled later the same day. The waterway was back up and running by the start of the following day.
During the 2018 summer months, Coldstream Concrete Ltd. supplied custom heavy precast and underground site servicing products to the northeast corner of London, Ontario. Phase one of this 25.4-hectare site backs onto the Thames river and will be home to over 130 detached residential lots. The SWM facility outlets into the Thames River and features a 31.5m precast concrete box culvert with a 90-degree bend, a precast three-sided, open-bottom culvert with footings, three precast headwalls and a custom precast outlet chamber. This chamber spans 5.3m x 4.8m x 3.0m deep and transfers water flow from a 2400mm diameter precast pipe + 1095mm x 1730mm elliptical pipe into a 3.0m x 2.4m box culvert outlet. When driving down Highbury Avenue North take a look at the development.
New Scotland Line
On December 6, 2018 Coldstream Concrete Ltd. supplied an 11-piece “ALL SKEW” precast concrete box culvert to Southshore Contracting of Essex County Inc. in Chatham Kent, Ontario. The culvert spans 2.74m, sits 2.13m tall and is 20m long. Each piece was built in our custom formwork with a 30-degree skew. Installation took one full day as mother nature was not cooperating.
Middlesex Centre Firehall
Middlesex Centre, Ontario
Back in May 2016, Coldstream Concrete Ltd. supplied three 50,000L water reservoir tanks to Middlesex Centre’s new firehall. This hall is believed to be the first net-zero carbon neutral fire station in Canada. Once installed the tanks were connected to meet the water requirements of the new hall.
Aarcon Excavating and Modern Crane placed and backfilled all three tanks in two days. To avoid flotation issues Coldstream Concrete cast these tanks with oversized mono bases in lieu of a cast-in-place slab that was originally specified.
On November 3, 2016, Coldstream Concrete Ltd. supplied the second half of this three-sided open-bottom culvert to the town of Aylmer in Elgin County. The culvert spans 6.0 metres wide and is a low earth cover design. Due to existing hydro conduits three of the culvert pieces had to be “skated” into position after they were lowered into the excavation. Gary D. Robinson Contracting installed the precast footings and culvert pieces, ensuring minimal disturbance to the waterway. The finished product can be viewed just south of Fath Avenue and John St. South.
On March 7th Coldstream Concrete Ltd. supplied a fourteen-piece “ALL SKEW” precast concrete box culvert to Cope Construction in South Huron, Ontario. The culvert spans 5.6m, sits 3.35m tall and is 21.5m long. Each piece was built in our custom formwork with a 30-degree skew and weighed in at 24,255 kg. Installation took less than one day. The culvert end treatments are comprised of 128 precast concrete retaining wall blocks.
In November of 2017, Land Development Solutions (LDS) presented a project that required a large 3.0m diameter maintenance hole to be put in one of the busiest commuter routes into the City of London. The project was finally awarded to CH Excavating (2013) in the Spring of 2019. In May 2019, Fanshawe Park Road West was closed in London, ON for approximately two weeks to allow for sewer upgrades, road widening and the connection of new services to a new proposed gas station just west of Hyde Park Road. The proposed 3.0m diameter maintenance hole in the roadway required a doghouse-style opening to be placed over top of an existing 2.2m (outside diameter) concrete pipe, to allow connection for a proposed 0.525m concrete pipe flowing into the existing storm system. Although the project specifications asked for a 3.0m diameter circular maintenance hole to be used for this application, Coldstream Concrete Ltd. advised the project engineers of their concerns of using a 3.0m diameter maintenance hole, suggesting that the structure will not be large enough to be structurally sound under the busy roadway.
Coldstream Concrete Ltd. offered the conception of building a 3.0m X 3.0m (inside dimensions) precast concrete box chamber, measuring approximately 3.6m deep (inside), with a stacked chimney consisting of several 1.2m diameter maintenance hole pieces sitting on the box chambers’ transitional top slab. This idea appeared to be the most achievable way to successfully rest a doghouse-style structure over the existing large concrete pipe and was accepted as a final design for the project. Coldstream Concrete Ltd. was proud to offer such a conception, and to produce the final engineered structure to be placed under one of London’s busy roadways.
The precast concrete box chamber was comprised of three pieces (not including the stacked chimney). A base slab, weighing nearly 8,350 kg and measuring 3.508m by 3.508m with a thickness of 0.305m was first placed under the existing concrete pipe. Next, a tall standing square riser section was placed over top of the concrete pipe and onto the base slab. The riser weighed nearly 26,000 kg and stood about 3.640m tall – one of Coldstream Concrete’s tallest single pieces. A transition slab was placed directly on top of the riser, which allowed for the stacked 1.2m diameter maintenance hole chimney to extend to the top of the roadway. The transition slab was slightly lighter in weight compared to the base slab but had similar dimensions.
CH Excavating (2013) successfully placed the large-structure pieces under and over top of the existing 2.2m diameter concrete pipe and made the necessary connections and adjustments to the existing storm system. Together Coldstream Concrete Ltd. and CH Excavating (2013) worked hard, diligently and quickly to get the job done safely and efficiently.