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Showing 1 to 20 of 50 for “"culvert"”.
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An investigation of metal culvert plate
Thesis (M.S.)--Michigan State College of Agriculture and Applied Science, 1950
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Computer analysis of Cross Canyon culvert
Buried culvert has its contribution in improving the convenience and quality of human life. The research of buried culvert in the past decades makes it to serve people more widely and efficiently. The research project of Cross Canyon culvert is one of them. A computer program was used in this …
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Culvert Hydraulics: Comparison of Current Computer Models
The hydraulic analysis of culverts is complicated when using hand calculations. Fortunately, several computer programs are available to assist in analyzing culvert hydraulics, some of which include HY-8, Fish X-ing, Broken-back Culvert Analysis Program (BCAP), Hydraflow Express, Culvert Master, …
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Autonomous quadrotor unmanned aerial vehicle for culvert inspection
… Aerial Vehicle (UAV) system for inspecting culverts. By expanding upon prior progress creating an autonomous indoor quadrotor, many basic hardware and software issues are solved. The main new functionality needed for the culvert inspection task was to utilize the Global Positioning System …
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Long-term management and condition assessment of concrete culvert
… compute the long-term annual investments for a culvert network. They are modified worst first method, network optimization approach and estimation by the maximum deterioration rate. The performance of a 15-culvert system was evaluated using the above methods. The method based on maximum …
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Investigation of Culvert Joints Employing Large Scale Tests and Numerical Simulations
The performance of joints in buried gravity flow pipelines are important since failure of these elements can affect the structural capacity of soil-pipe systems and reduce their longevity. Currently, there are no clear guidelines to design joints for gravity flow pipelines and therefore their …
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Preliminary investigation of culvert outlet baffle block geometry and energy dissipation
One method used to attenuate high-energy flow at culvert outlets, is the construction of baffle blocks. Baffle blocks are devices, generally of simplistic geometry, that impact the flow and reduce energy. The current baffle design used by the WVDOH has in some instances experienced problems with …
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Metal culvert renewal prioritization framework development: A study for Saskatchewan Highways
… province. Along these roads, over 26,500 culverts have been installed for passaging water flow. Some of which have been installed over a century ago with no recorded installation dates. The failure of culverts, caused by a wide range of factors such as environmental, structural, or …
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Preliminary investigation of energy dissipation at culvert outlets using a riprap step
One method used to attenuate high-energy flow at culvert outlets is the construction of a riprap energy dissipator. The current riprap design used by the WVDOH experiences problems with excessive sedimentation and is only applicable at culvert outlets where the flow velocity is low. The purpose of …
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Study of the Virginia V-notch weir-box culvert combination gaging station
A Virginia V-notch weir·box culvert combination gaging station is a discharge measuring device to record the runoff from small watersheds, usually less than two thousand acres in area. The station is composed of a prebuilt highway culvert, a one-foot thick triangular shaped weir placed between wing …
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Land Cover and Culvert Effects on Stream Physical Water Quality in West Central Georgia
… that are channelized, and added structures like culverts. In developed environments, culverts are widely used to transport rivers below human infrastructure. Although there is strong evidence that culverts cause downstream erosion and fragment populations of aquatic organisms such as fish, …
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A Model Study of the Hydraulics Related to Fish Passage Through Embedded Culverts
… understanding of the hydraulics of embedded culverts. The results of this research may provide support to improving the methods of culvert installation with respect to fish passage requirements. The overall objective of the research program was to quantify the hydraulic conditions, which …
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Local effects of culverts on habitat features and fish assemblages in Blue Ridge streams
… environmental conditions, fish assemblages, and culvert features in 11 headwater streams (Tennessee and Conasauga river drainages) in Cherokee National Forest (Blue Ridge ecoregion), Tennessee, May-August 2008. Culvert-related effects on instream habitat and fish assemblages were measured at 10 …
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Improved Load Distribution for Load Rating of Low-Fill Box Structures
Reinforced concrete box culverts are mostly used at shallow depths. Periodic evaluation of their load carrying capacities is required for load rating of the culvert by determining a rating factor (RF) or truck tonnage of a HS truck. The rating factor is defined as the capacity of the structure …
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Assessing Efforts To Reduce Sediment Impacts In Cottonwood Creek, Blackfoot Basin, Montana
… load from road surface erosion and possible culvert failures. Suspended sediment and turbidity measurements were taken during spring snowmelt the year before and after a culvert replacement by a bridge, and during the replacement activity. The two study years were typical snowmelt years; …
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Assessing Efforts To Reduce Sediment Impacts In Cottonwood Creek, Blackfoot Basin, Montana
… load from road surface erosion and possible culvert failures. Suspended sediment and turbidity measurements were taken during spring snowmelt the year before and after a culvert replacement by a bridge, and during the replacement activity. The two study years were typical snowmelt years; …
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An Assessment into the issues created by surface water flooding within the Rhondda Cynon Taf County Borough, Wales
… surface water flooding is the mismanagement of culvert networks. RCT culvert policy indicates that culverting of watercourses should be carried out as a last resort, and constructed culverts should be able to handle a Q100+30 year event.<br/><br/>Analysis using digital Vector Maps and GIS …
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