Headwall definition

Headwall means a steep slope at the head or upper end of a land slump block or unstable landform.
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Headwall means steep, concave slopes that can concentrate subsurface water, which can lead to increased landslide susceptibility. Headwalls are typically located at the head of stream channels, draws, or swales. Headwalls have slope gradients of 65 percent or greater in the Tyee Core Area and 70 percent or greater in the rest of the state, as measured in the axis of the headwall. Landslides that occur in headwalls are more likely to initiate channelized debris flows that can travel down streams (also known as debris torrents) than landslides that occur in other areas of the slope.
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Headwall means a vertical wall at the end of a culvert used to prevent earth from spilling into the ditch;
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Examples of Headwall in a sentence

  • E-16 08-60-006/010: Culvert cleaning - fully blocked…………………………………………………E-17 08-60-016/035: Concrete Pipe Culverts………………………………………………………….E-17 08-70-001 Headwall Repair - masonry …………………………………………………… E-19 08-70-002: Headwall Repair - concrete…………………………………………………… E-19 08-70-003 Minor Drainage Structures - masonry………………………………………..

  • A-10 08-70-001 Headwall Repair Masonry……………………………………………… A-10 08-70-002 Headwall Repair - Concrete……………………..…………………….

  • A-1008-70-001 Headwall Repair Masonry……………………………………………… A-10 08-70-002 Headwall Repair - Concrete……………………..…………………….A-1108-70-008 Scour Check Repair - masonry ……………………………………….A-11 08-70-009 Scour Check Repair - wooden………………………………………… A-11 08-70-010 Scour Check Repair - concrete………………………………………..

  • A-10 08-70-001 Headwall Repair Masonry………………………………………………A-1008-70-002 Headwall Repair - ConcreteA-11SECTION 10:CARRIAGEWAY REPAIR WORKS…………………………………… A-1310-50-006Light Manual Reshaping (Potholes, Ruts and Gullies…..…………… A-13 10-50-009 Light Manual Reshaping (Grub edge and Reshape carriageway… A-14 SECTION 11: SHOULDER MAINTENANCE AND REPAIR……………………….A-1611-50-001 Shoulder Grading……………………………………………………..

  • A-1008-70-001 Headwall Repair Masonry……………………………………………… A-10 08-70-002 Headwall Repair - Concrete……………………..…………………….A-11 SECTION 10:CARRIAGEWAY REPAIR WORKS…………………………………… A-1310-50-006Light Manual Reshaping (Potholes, Ruts and Gullies…..…………… A-13 10-50-009 Light Manual Reshaping (Grub edge and Reshape carriageway… A-14 SECTION 11: SHOULDER MAINTENANCE AND REPAIR……………………….A-1611-50-001 Shoulder Grading……………………………………………………..

  • A-10 08-70-001 Headwall Repair Masonry………………………………………………A-1008-70-002 Headwall Repair - Concrete A-1108-70-008 Scour Check Repair - masonry……………………………………….

  • E-16 08-60-006/010: Culvert cleaning - fully blocked…………………………………………………E-17 08-60-016/035: Concrete Pipe Culverts………………………………………………………….E-17 08-70-001 Headwall Repair - masonry ……………………………………………………E-19 08-70-002: Headwall Repair - concrete…………………………………………………… E-19 08-70-003 Minor Drainage Structures - masonry………………………………………..

  • Headwall heights greater than 2 feet above the top slab require an independent transverse analysis, which is not provided by the FDOT box culvert program.

  • Headwall and pipe shall be reinforced per AASHTO specifications and structural engineer's requirements.

  • Ensure that first or last spigot/butt or socket/butt pipe that is to be fitted to the Headwall is in position and free from backfill.Dig out the bank of the watercourse to take the size of the headwall making sure that the Headwall will not protrude into the path of the water flow.


More Definitions of Headwall

Headwall means steep, concave slopes that can concentrate subsurface water, which can lead to increased landslide susceptibility. Headwalls are typically located at the head of stream channels, draws, or swales.
Sample 1
Headwall means a steep slope at the head or upper end of a land slump block or unstable landform. (See Diagrams 20 and 21)
Sample 1
Headwall means a retaining wall at either end of a culvert to hold back earth around the culvert, and shall be constructed of concrete in accordance with Ontario Provincial Standard drawings, or prefabricated headwall stone to the satisfaction of the Town.
Sample 1

Related to Headwall

  • Highwall means a vertical or nearly vertical face in solid rock or a slope of consolidated or unconsolidated material that exceeds 3:1.

  • Sternlight means a white light placed as nearly as practicable at the stern showing an unbroken light over an arc of the horizon of 135 degrees and so fixed as to show the light 67.5 degrees from right aft on each side of the vessel.

  • Main means the pipe laid in the street, alley, or other right-of-way for the distribution of water to customers. It shall not include service lines.

  • We/Us/Our means TATA AIG General Insurance Company Limited.

  • Weed means any plant which grows where not wanted.

  • Hair mousse means a hairstyling foam designed to facilitate styling of a coiffure and provide limited holding power.

  • Youth center means any public or private facility that is primarily used to host recreational or social activities for minors, including, but not limited to, private youth membership organizations or clubs, social service teenage club facilities, video arcades, or similar amusement park facilities.

  • Hall means a unit of residence or of corporate life for the students of the University, or of a College or an Institution, maintained by the University;

  • Shorelands or "shoreland areas" means those lands extending landward for two hundred feet in all directions as measured on a horizontal plane from the ordinary high water mark; floodways and contiguous floodplain areas landward two hundred feet from such floodways; and all wetlands and river deltas associated with the streams, lakes, and tidal waters which are subject to the provisions of this chapter; the same to be designated as to location by the department of ecology.

  • Qard means a contract of lending money whereby the borrower is obliged to repay the equivalent amount to lender.

  • Campus means any place where the college conducts or sponsors educational, public service, or research activities.

  • Graywater means untreated wastewater that has not been contaminated by any toilet discharge, has not been affected by infectious, contaminated, or unhealthy bodily wastes, and does not present a threat from contamination by unhealthful processing, manufacturing, or operating wastes. "Graywater" includes, but is not limited to, wastewater from bathtubs, showers, bathroom washbasins, clothes washing machines, and laundry tubs, but does not include wastewater from kitchen sinks or dishwashers. Health and Safety Code Section 17922.12.

  • Switchover means transfer of units of one scheme of UTI MF to another scheme of UTI MF wherever permissible.

  • Growler means any refillable, resealable container complying with federal law.

  • Crosswalk means that part of a roadway at an intersection included within the connections of the

  • Sailboat means the same as that term is defined in Section 73-18-2.

  • SID means the supplementary information document of which these Terms form part;

  • Green means products, materials, methods and processes certified by a “Green Authority” that conserve natural resources, reduce energy or water consumption, avoid toxic or other polluting emissions or otherwise minimize environmental impact.

  • NBOME means the National Board of Osteopathic Medical Examiners.

  • Head means the person appointed by the Governors of the School to be responsible for (or to share in the responsibility for) the day-to-day running of the School, including anyone to whom such duties have been delegated;

  • foreshore , in relation to a port, means the area between the high-water mark and the low-water mark relating to that port;

  • Dewatering means the removal of water for construction activity. It can be a discharge of appropriated surface or groundwater to dry and/or solidify a construction site. It may require Minnesota Department of Natural Resources permits to be appropriated and if contaminated may require other MPCA permits to be discharged.

  • Heritage means Heritage Bancorp Ltd.

  • Plumber means a person who has passed a qualifying Trade Test in Plumbing or has been issued with a certificate of proficiency in terms of the Manpower Training Act, 1981 (Act No 56 of 1981) or such other qualification as may be required under national legislation;

  • Cotton means any cotton plant or cotton plant product upon which the Boll Weevil is dependent for completion of any portion of its life cycle.

  • TELRIC means Total Element Long-Run Incremental Cost.