2 edition of Using open-top pipe culverts to control surface water on steep road grades found in the catalog.
Using open-top pipe culverts to control surface water on steep road grades
J. N. Kochenderfer
by U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station in Radnor, Pa
Written in English
|Statement||James N. Kochenderfer.|
|Series||General technical report NE -- 194.|
|Contributions||Northeastern Forest Experiment Station (Radnor, Pa.)|
|The Physical Object|
|Pagination||7 p. :|
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Wide road spacing, ridgetop locations, buffer strips, rolling dips, low water fords, timber bridges, and selective surfacing and stabilization with native materials appear to represent some of the most promising opportunities. Keywords: road design and construction; erosion control; steep slopes and road grades; humid tropics 4 Page 26 • Issue 9 • Sep/Oct • Old Yardmaster - Industry scuttlebutt, page 6 that provide a range of information on what is happening both inside and outside the locomotive.
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Using open-top pipe culverts to control surface water on steep road grades [microform] / James N. Kochenderfer U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station Radnor, PA (5 Radnor Corp CTR STEPO BoxRadnor ) Australian/Harvard Citation.
Get this from a library. Using open-top pipe culverts to control surface water on steep road grades. [J N Kochenderfer; Northeastern Forest Experiment Station (Radnor, Pa.)]. Using open-top pipe culverts to control surface water on steep road grades / (Radnor, PA (5 Radnor Corp CTR STEPO BoxRadnor ): U.S.
Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, ), by J. Kochenderfer and Pa.) Northeastern Forest Experiment Station (Radnor (page images at HathiTrust).
Using Open-top Pipe Culverts to Control Surface Water on Steep Road Grades. USDA Forest Service. Woodlands of the Northeast, Erosion & Sediment Control Guides. USDA Soil Conservation Service (Natural Resources Conservation Service). A Guide To. Open top culverts are most effective on steeper road grades.
Open top culverts (Figure 82) can be made of durable treated lumber or poles or they may be prefabricated from corrugated, galvanized steel. The trough should be 7 to 10 cm (3 to 4 in) wide and from 10 to 20 cm (4 to 8 in) deep.
Using Open-Top Pipe Culverts to Control Surface Water on Steep Road Grades. Radnor,PA: Northeastern Forest Experiment Station, USDA Forest Service, Author: Peter F.
Ffolliott, Malchus B. Baker, Carleton B. Edminster, Madelyn C. Dillon, Karen L. Mora. TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis Cost-Effective and Sustainable Road Slope Stabilization and Erosion Control presents information on cost-effective and sustainable road slope stabilization techniques, with a focus on shallow or near-surface slope stabilization and related erosion control methods used on low-volume roads.
Figure Hikers and horses can use stepping stones and fords to cross small bodies of water. Culverts Install a culvert to channel water across a trail, allowing trail users to cross a narrow stream (Figure ).
An open-top log or rock culvert is easy to clean when it becomes clogged, but creates a hazard for some trail users. Figure off the road, and facilitate control of water: Close or relocate/reconstruct road segments with excessively steep road grades.
The steeper the road grade, the more difficult it is to achieve road surface drainage. With steep grades, even roads with moderate cross slopes. See Figure 9. 11 Structures for removing water from the road surface or diverting it across the road are the open-top culverts or dips.
Open-top culverts are frequently used on woods roads. They are inexpensive to construct and quite serviceable when properly maintained. They can be constructed of poles or from sawn timbers.
Keywords: road design and construction, erosion control, steep slopes and road grades, humid tropics. Adams, Paul W.; Andrus, Charles W.
Planning timber harvesting operations to reduce soil and water problems in humid tropic steeplands. and hold water on the road or move material off of the road d) Insufficient surface drainage. traps water on the road and is the main reason for poor road condition 2) ESMPs: a) Maintain Surface as Needed: Read the road to determine its grading needs instead of grading on a schedule.
Surface should have continuous side slope to the road edge. Humes’ EPD for Reinforce Concrete Pipe is a world-first, providing quality-assured and comparable information regarding environmental performance. Environmental. Maintain a properly functioning drainage system by clearing drainage structures of debris and regrading the road surface.
After completion of forest activity, retire access roads by smoothing and reshaping road surfaces, replacing open-top culverts with water bars or drainage ditches, and revegetating road surfaces, road banks, and landings.
Timber culverts have an advantage over round pipe because the top timbers can be quite low and still provide the cross-sectional area of a large round pipe.
Round pipe also concentrates runoff, while timber culverts spread the same volume of water over a wider area. Texas Forestry Best Management Practices Handbook Management Practices for Forested Wetlands. Additional Sources for Help with BMPs. Texas A&M Forest Service. TFS. OPEN-TOP CULVERT Open-top culverts are culverts without the enclosure, and thereby serve to intercept road surface runoff as well as convey collect- ed runoff across the roadway.
DESIGN CONSIDERATION The design of open-top culverts is described,in SectionOpen-Top Culvert. An appliance for heating of water control on the inlet side and free a core of air drawn down by the discharge, the air entering the pipe through the open top or the ventilating pipes.
Solids with some water fall down the centre of the pipe occupied by the air. surface water and it should extend well into the solid stratum below. Where. Second, the road surface must protect the subgrade by distributing surface loads to a unit pressure the subgrade can support, minimizing frost action, and providing good surface drainage.
A crowned surface of 3 to 5 cm/m of half-width will ensure adequate movement of surface water and reduce the potential for subgrade saturation. Issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online. Easily share your publications and get them in front of Issuu’s.
treated for water quality control by direction to BMP facilities. Water Table – The upper surface of groundwater, or that level below which the soil is seasonally saturated with water. Watershed – Region or area drained by a river, watercourse, or other surface water, whether natural or artificial.Full text of "Highway Engineers Reference Book" See other formats.That provision provides that an applicant is eligible for permit coverage only if: (1) The applicant's storm water discharges and BMPs to control storm water runoff do not affect a historic property, or (2) the applicant has obtained, and is in compliance with, a written agreement between the applicant and the State Historic Preservation.