culvert Articles

  • Cottingham Culvert Trash Screen monitoring

    East Riding of Yorkshire Council commissioned Hydro-Logic to install flood monitors in the village of Cottingham, near Kingston upon Hull. Residents in this area had been dramatically affected by the floods of June 2007. Extremely intense rainfall combined with already saturated land resulted in localised flooding which was made worse by the effects of easily blocked 'trash screens' at numerous ...

  • RS Culvert Scour Protection Concept

    The drawing above is our concept to address the scour problems associated with culvert discharge, specifically at West Oaks Mall in Ocoee, Florida. We think we are being conservative in our dimensions of the Rainstore3 structure to dissipate the energy from water. We have based these calculations on the pipe being about 4 feet in diameter with a discharge rate of 37.5 cubic feet per second (cfs). ...


    By Invisible Structures, Inc.

  • NCDOT culvert rehab case study

    HOBAS for DOT Projects The North Carolina Department of Transportation had a lot of challenges in rehabilitating an aging culvert along its seacoast near Nags Head. The existing culvert was leaking, causing sand to migrate into the pipe, undermining the sand dunes above. The line which outfalls directly into the Atlantic Ocean was also subject to a severe environment and was therefore ...


    By Hobas Pipe USA

  • Culvert trash screen blockage warning

    Wychavon District Council commissioned Hydro-Logic to install a system to monitor rising flood levels on the Bengeworth Brook in the Evesham area. Residents had been particularly vulnerable to the effects of 'trash screen' blockages at a culvert location. Storm events similar to the 2007 summer floods had caused particular maintenance problems for the Engineering Team at Wychavon. Design and ...

  • City of hull, culvert headwall, Hull, Quebec, CanadaCity of Hull, Culvert Headwall, Hull, Quebec, Canada

    The area surrounding a proposed retail mall in the City of Hull, Quebec, Canada was occupied by upscale homes. A watercourse divided the area into two distinct sections. Challenge In order to complete the mall project, the developer, Deschenes Construction, required solutions to the following: Stream re-alignment paralleling property limits, thus creating space for the ...


    By Presto Geosystems

  • Uranium city culvert headwall, Uranium City, Sask., Canada

    In the province of Saskatchewan, Canada, Highway 962 services the remote northern community of Uranium City. Uranium City is located in the extreme northwestern cor-ner of Saskatchewan, north of Lake Athabasca, 30 mi. (48.3 km) south of the border of the Northwest Territories. The city was developed and named as a result of a significant uranium deposit that was first explored in 1946. At one ...


    By Presto Geosystems

  • Hydrogen sulfide removal from sediment and water in box culverts/storm drains by iron-based granules

    A renewable granular iron-based technology for hydrogen sulfide removal from sediment and water in box culverts and storm drains is discussed. Iron granules, including granular ferric hydroxide (GFH), granular ferric oxide (GFO) and rusted waste iron crusts (RWIC) embedded in the sediment phase removed aqueous hydrogen sulfide formed from sedimentary biological sulfate reduction. The exhausted ...


    By IWA Publishing

  • Rainstore3 – Alternative to Pipe and Open Drains

    Open drains in Malaysia perform the same function as pipe in many other parts of the world – collect and convey surface runoff from pavement and landscaped areas to nearby streams and rivers. When these open drains encounter a structure (road or building) then they must interface with a pipe or culvert type of conveyance product. Rainstore3 can be used for conveyance, as well as storage ...


    By Invisible Structures, Inc.

  • Multicriteria decision analysis in water resources management: the malnichara channel improvement

    Multicriteria decision analysis tool is used in many water resources and environmental management projects. The Malnichara is one of the natural channels in Sylhet city (Bangladesh) responsible for storm runoff conveyance to the downstream Surma river. The channel is found to be encroached at many locations of the city and found to be very vulnerable. The authority has taken decision to improve ...

  • Flood and trash screen monitoring

    Hydro-Logic was contracted by City of Edinburgh Council in 2010 to supply and install water level monitoring and flood warning systems at 10 key locations throughout the City. The sites were on open water courses and culverted stream running through the city suburbs where flooding has been a recurring problem over several years. Design and installation services were provided by our sister company ...

  • Water supply structures of the Ottoman period in Istanbul (Asian side)

    The city of Istanbul has land on both the Asian and European continents. On the European side, many waterways (culverts) were constructed to supply water to the old city; however, on the Asian (Anatolian) side, such water supply structures were limited in number and capacity. Therefore in order to meet the water demand of this side of the city, foundation waterways were built. This study ...


    By IWA Publishing

  • Bridge-plate noisy river bridge replacement, County of Dufferin, ON

    Owner: County of Dufferin, Ontario Contractors: Nelson Arnold Construction Consultants: R.J. Burnside and Associates Location: Dufferin County Road 124 at Noisy River Through the creative application of existing products and construction techniques, Armtec provided a practical, cost-effective solution for replacing a ...


    By Armtec

  • Nakoma Brook flood & hydraulic analysis & engineering study Sloatsburg, New York

    Performed Hydrologic Studies and Hydraulic Engineering Investigations and Designs for the Nakoma Brook Watershed located in Western Rockland and Southeastern Orange Counties, encompassing over 8 square miles. The study area focus was in the Village of Sloatsburg, NY at the intersection of Route 17 and Eagle Valley Road. Flood Control analyses were conducted using USACOE's HEC-1 and HEC-2 computer ...


    By GEA ENGINEERING

  • Quarry Dewatering Compliance

    Louis W. Bray Construction installed a Greyline Area-Velocity Flow Meter in 2009 to meet Ministry of Environment regulations. Their permit stipulated effluent limits plus monitoring, sampling and flow measurement of wastewater discharged from the site to the South Raisin river. The Ontario Water Resources Act requires flow monitoring for any quarry dewatering ...


    By Greyline Instruments Inc.

  • Quarry dewatering compliance

    Louis W. Bray Construction installed a Greyline Area-Velocity Flow Meter in 2009 to meet Ministry of Environment regulations. Their permit stipulated effluent limits plus monitoring, sampling and flow measurement of wastewater discharged from the site to the South Raisin river. The Ontario Water Resources Act requires flow monitoring for any quarry dewatering greater than 50,000 liters per day. ...


    By Greyline Instruments Inc.

  • Beaver Dam Flats ArmorFlex Pathway Reconstruction - Case Study

    ArmorFlex provides a low-disturbance, efficient and flexible solution to a flood-damaged trail. A trail system path through the Bow River floodplain in Calgary was washed-out during the city’s 2013 flood. The City of Calgary needed to make quick and lasting repairs to maintain this section as part of its larger Regional Pathway Network, an important link for commuters and ...


    By Nilex

  • Why You Want Articulated Concrete for Landfill Protection

    A good landfill is one that no one notices. It does not produce odors, contribute to erosion or divert storm water to undesirable locations. The municipality or private entity in charge of it has to make great efforts to keep it that way. One way to do that is by installing articulated concrete. This system of concrete blocks and wires offers landfill protection that is unlike previous options. ...

  • Petersburg airport improvements

    Semi-Passive Treatment with ChitoVan Chitosan Lactate Cartridges Dungeness Environmental was called upon to assist with passive treatment using ChitoVan Chitosan Lactate Cartridges at an Airport Safety Improvement project in Petersburg, Ak in March of 2009. The project consisted of expanding the runway to meet FAA and RSA design standards. In the process multiple culverts were replaced which ...


    By Dungeness Environmental

  • Bergen county golf courses drainage analysis & design for Rockleigh, Darlington, & Overpeck golf courses

    GEA provided Drainage Assessments and Designs for amelioration of flooding and poor drainage conditions for three (3) Golf Courses in Bergen County for the Bergen County Department of Parks. The three courses and their respective rivers or controlling streams included:· Darlington in Mahwah, NJ - Darlington Brook, tributary to Mahwah River; Overpeck in Teaneck, NJ -  Overpeck Creek; ...


    By GEA ENGINEERING

  • Flood Alleviation

    BritishFlora helps rescue lost London river from subterranean obscurity in award winning flood prevention. In the 1930's, engineers at the then Metropolitan Borough of Woolwich diverted a flood-prone section of the River Quaggy through an underground culvert so that new housing could beQuaggy built. In fine weather, the river was contained. But after heavy rainfall, the Quaggy became a ...


    By BritishFlora

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