Figure 2: Typical loading condition of balanced snow load. Click on In any situation where the official printed publications of Plumas County differ from the text or graphical representations contained in this system, the official printed documents take precedence. You may also contact the Plumas County Planning Services at (530) 283-7011 for more information. The appropriate roof load used in design is dependent on where the home will be initially installed. By clicking the "ACCEPT" button, you agree that you have read and understand the preceding information and you will be able to enter the online mapping and data download page. The roof snow load in Monte Carlo analysis is modeled as a function of two random variables: the ground snow load, which is discussed in Section 4, and the ratio of roof snow load to the ground snow load, i.e. This is considerably less than the 25 psf that the old codes required. Here you can set a name and description for the sketch. The North Zone design live load equates to 40 pounds per square foot, the Middle Zone equates to 30 pounds per square foot, and the South Zone equates to 20 pounds per square foot. These materials and construction methods increase the ability of a building located in any Fire Hazard Severity Zone with State responsibility Areas or any Wildland-Urban Interface Fire Area to resist the intrusion of flame or burning embers…. Use Restrictions: Read the liability disclaimer and use restrictions carefully. Snow, particularly new fallen and snow in very cold climates, can be easily be moved by wind, resulting in unbalance roof snow loads and drifting. Snow Load Map. 20 psf, collateral load of 5 psf: Wind Load. Create high quality map prints with feature highlights and popup windows. Use the toolbar at the top of the map to create a bookmark. All features in the legend denoted with a "check box" can be turned "On" or "Off". Industry Statistical Information & Reports. 2010 Ground Snow Load Table for Ontario. Details can be found at CalFire's FRAP website: Any decision made or action taken or not taken by user in reliance upon any information or data furnished hereunder. Double click to close polygons. Type an Assessor Parcel Number (APN) into the search box (in this format: 123456789) and click "Go". The ground snow load map shown below was scanned from the ASCE 7 … Figure 1: Characteristic ground snow load map taken from UK NA to BS EN 1991-1-3 Parapets and obstructions Parapets and other obstructions against which the snow may accumulate cause snow drifts resulting in localised high snow loads well in excess of the uniform snow load. B or C. Orofino: Seismic Design Category . Mapping of these areas, referred to as Very High Fire Hazard Severity Zones (VHFHSZ), is based on the latest fire modeling methods utilized by CalFire. Other considerations for sloped roofs can be found throughout Chapter 7 of ASCE 7-10. Primary sources from which this data was compiled must be consulted for verification of information contained in this data. Find your town's expected snow loads on this Vermont snow load map or in the listing below. © 2017 Manufactured Housing Institute. Your browser is out of date! Extremely large circles may appear to be compressed if placed near the top or bottom of the map boundary; however, they occupy the same amount of area. Click on the " Shasta and Siskiyou County requires 60 psf in Mt. Site specific case studies are required in these areas. Oregon Snow Load Map Provide Feedback Share your bookmark of a place or feature. Ground snow loads do not discount that actual snow loads may exceed them, only that the risk of snow-load-induced failure is reduced to an acceptably low level. Ground and Roof Snow Loads for Idaho. Quickly zoom to any saved bookmarks you created. This tool seamlessly integrates Google's Street View with your map. Plumas County makes no representations or warranties regarding the condition or functionality of this website, its suitability for use, or that this web service will be uninterrupted or error-free. Link. 90 mph for both 2003 IRC and 2003 IBC. Roof load (live load) design is affected by the shape of the roof whether it is flat, curved or pitched. You can select a color from the range provided. Your building's roof load rating should well exceed your town's expected loads; we recommend a safety margin of at least 10 lbs/sq. Videon and J.P. Schilke, Civil & Agricultural Engineering, Montana State University, August 1989. Most features when "clicked on" will have a "Pop up". Ground Snow Load. However, a South Roof Load Zone home cannot be installed in either a Middle or North Roof Load Zone. The normalized ground snow load map layer was overlaid on the Google Maps Terrain map type. Homes designed and constructed to a higher Roof Load Zone can be installed in a lower Roof Load Zone (a home designed to a North Zone can be installed in a Middle or South Roof Load Zone). Selection tools include radius, box, shape, and attribute filters. Type an address (select To save the marker, click the Query a Community or Place Tool is used to as a quick "jump-to" to a known community or a known place. The data accessed through this website provides a visual display of geographical information as a public resource of general information for use "AS IS," "AS AVAILABLE" and "WITH ALL FAULTS" basis. Parcel boundary lines should be considered a graphical representation and not in any way a legal survey or engineering document. In addition, land information is constantly changing and the most current or accurate data might not be represented herein. Select a draw tool and the window will automatically close and you can begin adding shapes to your map to highlight an area or specify a certain point. In our case, let’s assume that our structure has a flat roof (roof slope ≤ 5°). 60 ground snow PSF BELOW LINE 50 PSF 50 ground snow PSF . In areas of the state outside of certified local government jurisdictions, the design snow load shall be based on the ground snow loads developed in "Snow Loads for Structural Design in Montana", authored by F.F. Sketches are designed to be shared and worked on collaboratively, so by default new sketches can be edited by anyone with the sketch URL. 1: Name affiliation: National Research Council of Canada. As of July 1, 2008, for which an application for a building permit is submitted located within State Responsibility Areas Fire Hazard Severity Zone or any Wildland-Urban Interface Fire Area the shall comply with Chapter 7A, California Building Code, or Section R327, California Residential Building Code. Opens when a feature is clicked on. This feature requires the user to authorize their web browser to know their location. Comprehensive Plan - … If misleading, inaccurate or otherwise inappropriate information is brought to the County's attention, a reasonable effort will be made to fix or remove it. To place a marker, select This feature provides basic information about the feature that you have clicked on. Create a marker from the tool bar and click on the map to place the marker. You can click on the map below to determine the design ground snow load, latitude and longitude and elevation for that location. How snow load can damage your buildings. NOTE: Hover your mouse pointer over a map tool icon to display the name of a particular tool. Site specific evaluation should be verified by field inspection. Roof snow load calculation. These are preset so that your computer will be able to process the data faster. Search Box (located in the upper right-hand corner of the map screen. Each manufactured home must be designed according to the federal Manufactured Home Construction and Safety Standards at 24 CFR 3280, commonly called the HUD Code. To draw a shape, click on the corresponding icon on the right of the sketch panel, and start drawing. Roof Snow Load. Round footing sizing table. View final version: Roof snow loads in Canada (PDF, 2 MB) Author: Search for: Taylor, D. A. Therefore, by using this website for any purpose, users agree to indemnify, defend, and hold Plumas County harmless for any and all liability of any nature arising out of or resulting from the lack of accuracy or correctness of the data, or the use of the data presented on the website. Snow Loads for Structural Design in Montana (Revised 2004) Gregory P. Theisen Michael J. Keller Jerry E. Stephens Fred F. Videon James P. Schilke December 2004 Data Summary Tool will allow you to select features in one layer and then find features in a second layer that meet certain criteria (e.g., intersect within a certain distance). Elevation. To calculate Roof Snow Load per Residential Building Code: 0.7 x pg (ground snow load) = pf (roof snow load) Roof Snow Load Examples: Above line: 0.7 x 60 psf = 42 psf Below line: 0.7 x 50 psf = 35 psf . Frost depth map - Minnesota Rules 1303.1600. In the mountainous western US there are large areas listed as being "CS". In the UK, snow load is usually taken as either 0.75 kN/sq m., or 1.0 kN/sq m., depending on location. The Code verification sign-off Comprehensive Plan Maps. Done button. Scalebar / Latitude & Longitude / Create Bookmark / Share Bookmark /Zoom Tools / Print Map / Refresh Map. The map will be centered on the point where you clicked. is to establish minimum standards for the protection of life and property. The roof or the entire structure can fail if the snow load exceeds the weight the building was designed to shoulder. The Plumas County GIS data is for informational purposes only and should not be used to determine precise boundaries, parcel boundaries, appraisal, engineering, nor legal descriptions. Live Load. Snow load map - ground load and roof load map per Minnesota Rules 1303.1700. While every reasonable effort has been made to ensure the content, sequence, accuracy, timeliness or completeness of materials presented within this data, Plumas County GIS shall assume no liability for: 1. All rights reserved. Liability Disclaimer and Use Restrictions: The flat roof snow load is calculated using formula 7.3-1: The Plumas County GIS data shall not be construed to be an official survey. Roof snow loads are based on the historical records for ground snow loads for a given location, however the local building authority should always be consulted to determine the correct roof snow load to use for a given site and application. The HUD Code stipulates, at §3280.305(c)(3), that the home shall be designed and constructed to conform to one of three roof load zones. Materials and Construction Methods for Exterior Wildfire Exposure: The purpose of Chapter 7A in the 2016 California Building Code and Section R 337 in the 2016 C.R.C. Square footing sizing table. We have attempted to integrate these various data sources as well as possible. Soil classification and bearing table. Experience has shown that there are very large local variations in The snow load values displayed by the online map and returned by the lookup tool are 50-year mean recurrence interval (MRI) ground snow loads. 2005 Ground Snow Load Tables. This data is for visual representation only and may not contain all data that is available by contacting Plumas County Planning Services or GIS directly. To your preferred shape or size including aerial imagery preset so that your computer will be demonstrated within map. 1.0 kN/sq m., or inaccuracies in the legend denoted with a `` Pop up '', Technical... Ground load and superimpose it on our structure and ice / Share Bookmark tools! Data shall not be represented herein roof ( roof slope ≤ 5°.! Map itself the United States with contours for ground snow load is downward! 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