PROJECTS COLDSTREAM CONCRETE PROJECTS SEWER UPGRADES & ROAD WIDENING | FANSHAWE PARK ROAD 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. FACEBOOK TWITTER PREVIOUS PROJECTNEXT PROJECT CONTACT US Please fill out the fields in the following form or feel free to call us at 519.666.0604 or Email: info@coldstreamconcrete.com Name Email Phone Number Message Please click the safety helmet before clicking submit 402 QUAKER LANE. R.R#2 ILDERTON, ON NOM 2A0 TEL: 519.666.0604 FAX: 519.666.0977 EMAIL: INFO@COLDSTREAMCONCRETE.COM © COLDSTREAM CONCRETE LTD 2017 Web Design by ZOO Media Group