The frost line is the maximum distance below ground that soil water freezes. Zone 8. gov > North Central River Forecast Center > Frost Depth River Observations and Forecasts Weather Observations and Forecasts Water Supply Climate and History Seasonal Interest Local Information Links to some additional information about frost depth and soil temperatures Link to ArcGIS Online app for Frost Depth. Division 3100 - Structural - Walls, Retained Soil Systems. Hahn, MilwaukeeSullivan NWSFO , or Map from Climatological Analysis of Historical Frost DepthFrozen Ground Data in Wisconsin through 20152016 winter -- From Milwaukee Sullivan National Weather Service Office 2018. EarliestMedianLatest Dates for the FirstFall 36F Frost, 32F, and 28F Freezes Below are images depicting the earliest, median, and the latest dates for the first 36F Frost, 32F, and 28F freezes across our region. The map on the right depicts the depth that the ground is frozen under sod across the state. 30 in. Data are queried from the NCRFC database late morning each day. Recommended center-to-center spacing of deep foundation elements. Frost Protection. Coordinates 46. This standard addresses the design and construction of frost-pro-tected shallow foundations in areas subject to seasonal ground freez-ing. Much like other maps, . The Frost and Freeze map shows where frost cant be expected and where temperature are forecast to fall below 32 degrees F. The Frost and Freeze map shows where frost cant be expected and where temperature are forecast to fall below 32 degrees F. Leaflet Plantmaps OpenStreetMap Contributors. When the ground is frozen, it is impervious. Rhode Island Frost Depth Map. frost depth msbc rules 1303. 7 C March SST anomaly 0. The map on the right depicts the depth that the ground is frozen under sod across the state. Predefined Maps; Web Service; Frequently-Asked Questions; System Downtime Schedule; About Us. Certification Form 128. Unsettled for Parts of the West; Warming Temperatures for the East. How deep is the frost line in Central PA. Observations are denoted by a small x. Ice thickness nearby is a much better indicator there. District 5 (Yakima) Maximum frost depth was 0. New Castle County building code defines frost depth as 32," but the national map of frost lines puts northern Delaware at 40. El Nino weather patterns, when warming Pacific waters create moisture in much of the West and Midwest states, have been missing since 2019. 66 inches (2,049 mm), average annual snowfall 0. 224 to. Figure 3. 8 m (30 in. frost depth map. A map of Montana Counties with County seats and a satellite image of Montana with County outlines. wedding venues hong kong. gov > North Central River Forecast Center > Frost Depth River Observations and Forecasts Weather Observations and Forecasts Water Supply Climate and History Seasonal Interest Local Information Links to some additional information about frost depth and soil temperatures Link to ArcGIS Online app for Frost Depth. Ice thickness nearby is a much better indicator there. Zone 7. The minimum yield strength of reinforcing steel shall be 40,000 psi (Grade 40) (276 MPa). OF THE. Paul District of the U. View fullsize. 19, 2021 at 345 PM PST. Frost depth analysis showed that maximum frost depths vary from 110. Steel reinforcement for precast concrete foundation walls shall have a minimum concrete cover of 3 4 inch (19. Recommended deep foundation types and installed capacities. The current year's data has a green background. Low pressure will bring locally heavy precipitation to the Pacific Northwest, much of California, and the Great Basin today and tonight, before pushing into the Rockies by Monday. . The worst of the arctic blast will be departing the region within 36 hours, so Dumont advised to save your snowmobiling, skiing or tobogganing until Sunday, when the temperatures in Portland are. Figure 8 is, in general, similar to Figure 6. For most of this winter, the frost depth has run in the neighborhood of 10 to 20 inches across Illinois with a few sites going deeper. Then take a site with clean gravel, as at LaCross, WI and estimate the depth of freeing under a roadway that usually is plowed. Located on the dirt road off of Route 68 near Harmony and the Dollar Pills. Freezing Index Degree days Estimated Frost Depth in meters Freezing Index Degree days Frost Depth in meters Frost Depth in feet 400 0. frost depth map created date 392007 21325 pm. Jan 29, 2017 dik (Structural) 29 Jan 17 1749 If you extend the map to the Winnipeg area, you have approximately 90"-100" of penetration. Depending on the soil, one inch of rigid insulation is equal to approximately one foot soil depth, therefore if the frost line for your area is 4 ft deep, and you are installing a water line at the 3 ft mark, you must lay 1" thick rigid insulation above the whole length the water pipe. 88" Depth 29. In Wisconsin&x27;s Pre-IBC, "Old" Code, "DILHR" (Department of Industry Labor and Human Relations), it says "Footings and foundations shall be placed below the frost penetration lever, but in no case less than 42 inches below adjacent ground. Ley Line Disorder For this floor only; the ley line flow will be normal. It is provided courtesy of Environment Canada. FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM. How deep is the frost line in Central PA. Frost depth varies across the state in January 2018, but is generally deeper than it was last two years. The Hydrological Yearbook 20012005 comprises annual treatises on hydrological conditions in Finland as well as tables and diagrams presenting daily or monthly means of hydrological variables during these years. Why take a footing down 4 m when the soil was not frost susceptible and the groundwater level was so low. Nov 13, 2022 Locations of Frost and Thaw Depth Monitoring Sites Office of Materials & Road Research E-mail MaterialsLab. For six decades, Frost & Sullivan has been world-renowned for its role in helping investors, corporate leaders, and governments navigate economic changes and identify disruptive technologies, Mega Trends, new business models, and companies to action, resulting in a continuous flow of growth opportunities to drive future success. bj; fl. Find information about Indiana&39;s firearm laws. Often, youll see contour lines on a frost-depth map where any point along that line represents the frost depth in those towns and cities where the line crosses. For information on wind design, seismic design, weathering, front line . Alternately, there are many frost line depth maps that display that average frost line maximum for the region. 1 mm). 5" Height 66. Observations are denoted by small boxes. Feb 27, 2014 For most of this winter, the frost depth has run in the neighborhood of 10 to 20 inches across Illinois with a few sites going deeper. Quickly retrieve site structural design parameters specified by ASCE 7-10, ASCE 7-16, and ASCE 7-20, including wind, seismic, snow, ice, rain, flood, tsunami, and tornado. Post navigation. The map in. 5 (1), or as specified by engineered design accepted by the building official. For most of this winter, the frost depth has run in the neighborhood of 10 to 20 inches across Illinois with a few sites going deeper. Quick Specs Type Freezer Style Upright Width 32. 848 AM PST Tue Jan 31 2023. 25" Energy Star Rated No Refrigerator Size 17. Knowing the depth of the frost line in your area is very. Frost depth varies across the state in January 2018, but is generally deeper than it was last two years. Design and Construction of Frost-Protected Shallow Foundations American Society of Civil Engineers SEIASCE 32-01 ISBN (print) 9780784405642 ISBN (PDF) 9780784470824 Tools Buy E-book Abstract This standard addresses the design and construction of frost-protected shallow foundations in areas subject to seasonal ground freezing. Frost heave can damage foundations, footings, and other important structural elements. 5, gravelly sand 9. Frost Depth Map. Leaflet &169;Plantmaps &169;OpenStreetMap Contributors. A frost line depth chart is a map or graphical representation that indicates the depth at which water in the ground freezes, or the depth to which ice or frost penetrates the soil in a location. Mar 24, 2020 The frost line in Maryland is 30 inches deep. -. Jan 29, 2017 dik (Structural) 29 Jan 17 1749 If you extend the map to the Winnipeg area, you have approximately 90"-100" of penetration. 4 Frost Line by Zip Code. There are many ways to predict frost depth including factors which relate air temperature, soil temperature and soil properties. Data are queried from the NCRFC database late morning each day. How the frost depth is affected is understood, but what makes the temperatures have variances climatically is still being debated. View fullsize. Dec. Arizona Ground Frost Depth June 2010 Data Sources NRCS Projection Datum NAD1983UTMZone12N For Further Information Contact Arizona NRCS State Headquarters - (602) 280-8801 230 N. Depth and Thaw -The plots contain 2 elements Depth This element refers to the depth of frost penetration. The SWROC has two frost tubes which will be read weekly (usually on Mondays) throughout the winter season. 9 (cu. Recommended deep foundation types and installed capacities. 848 AM PST Tue Jan 31 2023. OPSD 3090. The maximum frost line depth is 100-inches as seen near the tip of Minnesota, North Dakota, and Alaska, all the way to zero inches in Florida, southern Arizona, and southern California. NCDC Winter Severity and Frost Depth in a Warming Climate About AFI - Air Freezing Index. Local Information. Observations are denoted by a small x. Frost Depth Map. Though this is the standard depth, other factors play a part in determining the frost depth for a. Foundation insulation requirements to protect heated and un-heated buildings from frost heave are presented in easy-to-follow steps with reference to design tables, climate maps, and other neces-. Ice thickness nearby is a much better indicator there. Frost heave map for North America & Canada What problems can frost heaving cause The pressure of frost heaving can crack basement walls - especially when built of CMU or brick - or with the lifting forces of frost heave caused by " adfreezing ," which occurs when soil freezes to the surface of a foundation. 1 cm. This resulted frost heave can be detrimental to footings and foundations. Township Zoning Map. This dataset includes frost tube data from 37 stations in the Upper Midwest (Minnesota, North Dakota, Wisconsin), USA. to be less than the local frost depth, meaning cost sav-ings are still available. Pakenham weather forecast updates on today's temperature and bush fire or weather warnings in effect with hourly, daily and 7 day predictions. Weather Maps Piste Map gallery. security camera that connects to phone without wifi toyota 8hbw23 manual pdf. Sample frost lines for various locations edit United States Ohio (2018) Columbus, Ohio 32 inches (0. Frost heave map for North America & Canada What problems can frost heaving cause The pressure of frost heaving can crack basement walls - especially when built of CMU or brick - or with the lifting forces of frost heave caused by " adfreezing ," which occurs when soil freezes to the surface of a foundation. This represents an increase for employment in this profession of 5 Campbell County Kentucky frost protection frost campbell county kentucky submitted over 5 years ago Minimum depth is 2 ft for water, 3 ft for sewer, they can be joint trenched and 1 ft sand embedment required for each Tracking map Liveuamap is opendata-driven media platform. frozen soil map of China and the International Permafrost. Building decks, fences, and anything above grade requires the use of footings for support. table r403. 219-881-5285 Fax 219. Where deep foundations will be used, a geotechnical investigation shall be conducted and shall include all of the following, unless sufficient data on which to base the design and installation is otherwise available 1. River Observations and Forecasts Weather Observations and Forecasts Water Supply Climate and History Seasonal Interest Local Information Satellite River Ice Imagery shown below from the RealEarth data discovery platform by SSECCIMSS - University of Wisconsin -Madison Links to some additional sources river ice information. Seasonal Interest. . The frost line map below is a rule of thumb for frost line depths for the lower 48 states. Soil frost measurements have been made at Sleepers River Research Watershed starting in 1983. Geological Survey from 1993 to the present. Steel reinforcement for precast concrete foundation walls shall have a minimum concrete cover of 3 4 inch (19. Frost Line Depth for construction and water use. The jurisdiction shall fill in the frost line depth column with the minimum depth of footing below finish grade. 5 Tips for Digging. When the water thaws it doesn&39;t thaw evenly and therefore . The map is offered as a guide only. Minnesota State Building Code Requirements for Frost Footings. Where deep foundations will be used, a geotechnical investigation shall be conducted and shall include all of the following, unless sufficient data on which to base the design and installation is otherwise available 1. Knowing the depth of the frost line in your area is very. Certification Form 128. Foundation Frost Protection. Using these modeled frost depth estimates, an extreme-value climatology for the maximum depth of soil freezing. Where the frost line depth requires deeper footings than indicated in Figure R403. NCDC Winter Severity and Frost Depth in a Warming Climate About AFI - Air Freezing Index. Local Information. 4006, -95. Climate maps look for the drop down tab at the bottom left and explore info about snow, precipitation, cloud coverage, winds and more. The 2010 California Residential Code has a beautiful table (TABLE R301. Permafrost does not have to be the first layer that is on the ground. FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM. Data Set Overview. This resulted frost heave can be detrimental to footings and foundations. Groundwater was 5 m or so down. 21 surface area (sq mi) 120 max. 4006, -95. May 1, 2015. Take a look at our frost depth map above to see the frost line in your area. Here is a screenshot of this mornings map. Resolute In Depth Hidden River Brewing Co. Figure 3. 00 Express Shipping Apr 04, 2021 &183; To find the depth, measure from the back of the space to the front of the counter. This standard addresses the design and construction of frost-protected shallow foundations in areas subject to seasonal ground freezing. We did the investigation and discovered (actually confirmed) that the plant was on clean sand stratum of some depth. 5 m) 4 5 Southern counties 3. These bench marks might hold their elevations within a few centimeters while the project is being carried out. Plantmaps has derived zones indicating the Interactive map of average annual First frost dates for the state of Arizona. The frost line is simply the deepest point in the ground to which ground water will freeze. Figure 3 Frost protected shallow foundations vs. For panfish, it plays a big deal but I find the walleyes are usually aggressive enough that they dont care. 8 m (30 in. Back To Map Washington Extreme Frost Line Penetration (in inches) State Average Frost Depth 24 Source U. We did the investigation and discovered (actually confirmed) that the plant was on clean sand stratum of some depth. The minimum yield strength of reinforcing steel shall be 40,000 psi (Grade 40) (276 MPa). How the frost depth is affected is understood, but what makes the temperatures have variances climatically is still being debated. Volume 21 Number 1 SpringSummer 2009 Page 3 Index to the Construction Code Communicator 2008 (Volume 20) Article Edition Issue No. Grand Forks, ND reported a frost depth of 35 inches on Monday. Common index used to esmmate a depth of frost penetramon. This map shows the frost line depth for each state. The following map indicates the number of freezing degree days for Canada by zone. 8 Diameter. 4006, -95. The actual frost depth is affected by the material type, soil thermal properties, soil water content, and climatic conditions such as temperature, wind speed, precipitation, and solar radiation. energy code requirements While FPSF requirements provide minimum insulation values required to protect from frost-related damage, often energy codes govern and require more insulation. solution of this problem we use a map of our country, which contains the . to be less than the local frost depth, meaning cost sav-ings are still available. Fish and Wildlife Service said it has decided to conduct an in-depth status review to determine whether state management plans Call 1-800-346-8747. 848 AM PST Tue Jan 31 2023. Rhode Island Frost Depth Map. Frost Protection. Iowa State Soil Moisture Network Iowa Average 4 inch Soil Temperature - Reports and Interpolated County. The frost line map below was drawn based on data from the U. Figure 3. Back To Map. New Castle County building code defines frost depth as 32," but the national map of frost lines puts northern Delaware at 40. Plantmaps has derived zones indicating the Interactive map of average annual First frost dates for the state of Maine. When water changes from liquid to solid, it expands 9 in volume. 5 m (20 in. 5 m) 4 5 Southern counties 3. The maximum frost line depth is 100-inches as seen near the tip of Minnesota, North Dakota, and Alaska, all the way to zero inches in Florida, southern Arizona, and southern. Here is a screenshot of this morning&x27;s map. Mar 1, 2021 Soil frost measurements have been made at Sleepers River Research Watershed starting in 1983. . These bench marks might hold their elevations within a few centimeters while the project is being carried out. Blizzard removed the ability to distinguish between spell ranks in the combat log, so now cast times are always based Oct 14, 2010 &183; Get the latest cast-bar-addon info from our tech-obsessed editors with breaking news, in-depth reviews, hands-on videos, and our insights on future products. (1994) present a map of 100-year return period air freezing indices which can be used to derive empirical frost depth values. Change Forecast Height. Link to ArcGIS Online app for Frost Depth. Mar 8, 2016 The computed maximum frost penetration depths were compared to the historical frost penetration values, as published in the climatic maps developed by NOAA and Environment Canada. The allowable bearing pressures may be increased by an amount equal to 10 for each foot of depth below the surface of sound rock; however, the increase shall not exceed two times the value given in the table. Locations of Frost and Thaw Depth Monitoring Sites Office of Materials & Road Research E-mail MaterialsLab. Spatiotemporal interaction of near-surface soil moisture content and frost table depth in a discontinuous permafrost environment. depth (ft) Go back. 2500 to 2800 ft. owl house eda, hastings remington 1100 slug barrel
In chilly places like Boston, or Milwaukee, the frost line extends as far down as 48 The bottom of these footings is below the frost line. . Frost depth map
4C and -9. Mar 8, 2016 The computed maximum frost penetration depths were compared to the historical frost penetration values, as published in the climatic maps developed by NOAA and Environment Canada. This depth is determined by the frost line in your area and the map below will show you how deep you need to dig to safely place your . Routine observations of ground frost depth were made by members of the Illinois. yr Air Freezing Index Map and Mean Annual. 1st Ave. Quickly retrieve site structural design parameters specified by ASCE 7-10, ASCE 7-16, and ASCE 7-20, including wind, seismic, snow, ice, rain, flood, tsunami, and tornado. frost depth map created date 392007 21325 pm. While it doesnt work on the screen shot, you can mouse-over the points on the map on the website and see the individual reports. And, there are other factors involved, like soil density. Observations are denoted by small boxes. Station Locations Names and locations of active stations with data shown on other maps. Us Frost Line MapConstructing in accordance with Section R403. 8 m) 3 Minnesota (2007) Northern counties 5 feet (1. Frost depth varies across the state in January 2018, but is generally deeper than it was last two years. This map is intended to be used as a reference only. bj; fl. Effective 1201 am, Monday, December 5, 2022, Winter season weights for heavy haul will come into effect on roads north of and. They can show you a maximum frost depth map and specify the proper depth you need to dig for footings and pipes. 1 - Jan. 1(1), the frost line depth strength required for weathering shall govern. The results of this research have the potential to lead to further in-depth studies about seafaring and maritime history within the Persian Gulf. 5 feet (1. Army Cold Regions Research and Engineering Laboratory from 1983 to 1993, followed by the U. It is also referred to as the freezing depth or frost depth. NCDC Winter Severity and Frost Depth in a Warming Climate About AFI - Air Freezing Index. Foundation insulation requirements to protect heated and unheated buildings from frost heave are presented in easy-to-follow steps with reference to design tables, climate maps, and other necessary. For most of this winter, the frost depth has run in the neighborhood of 10 to 20 inches across Illinois with a few sites going deeper. energy code requirements While FPSF requirements provide minimum insulation values required to protect from frost-related damage, often energy codes govern and require more insulation. Back To Map Illinois Extreme Frost Line Penetration (in inches) State Average Frost Depth 36 Source U. So, the frost line is a safe distance beneath the surface of the ground where soil and anything layed within it will not be affected by freezing temperatures. NCDC Winter Severity and Frost Depth in a Warming Climate About AFI - Air Freezing Index. Act quick before they expire Well update this article whenever there is a new active code availabl. In Austin, there is not a specific frost line. 3(1) minimum footing depth and insulation requirements for frost-protected footings in heated buildings a; air freezing index (&176;f-days) b minimum footing depth, d (inches) vertical insulation r-value c, d horizontal insulation r-value c, e horizontal insulation dimensions per figure r403. With this variability in mind, it&39;s necessary to check local building codes, as well as frost line depth maps to get an accurate idea of how. Map of frost and thaw depth monitoring sites. Results Phillips is in Price County --> Zone C. We did the investigation and discovered (actually confirmed) that the plant was on clean sand stratum of some depth. Map from Climatological Analysis of Historical Frost DepthFrozen Ground Data in Wisconsin through 20152016 winter -- From Milwaukee Sullivan National Weather Service Office 2018 Maps of Midwest soil temperature-frost depth from North Central River Forecast Center (only available during this season) Severe Winter Weather. Map from Climatological Analysis of Historical Frost DepthFrozen Ground Data in Wisconsin through 20152016 winter -- From Milwaukee Sullivan National Weather Service Office 2018 Maps of Midwest soil temperature-frost depth from North Central River Forecast Center (only available during this season) Severe Winter Weather. Minnesota State Building Code Requirements for Frost Footings. The frost linealso known as frost depth or freezing depthis most commonly the depth to which the groundwater in soil is expected to freeze. Fish and Wildlife Service said it has decided to conduct an in-depth status review to determine whether state management plans Call 1-800-346-8747. In general, the deeper the average frost depth, the greater the likelihood of frost. The use of pitless adapters provides for a frost-free . to be less than the local frost depth, meaning cost sav-ings are still available. Station Locations Names and locations of active stations with data shown on other maps. This mod is one that adds the backrooms, neverending mono yellow rooms for level 0, concrete walls and cement flooring for level 1, and each of the other levels with its own unique properties. This map is from the National Snow and Ice Data center and shows the frost line map across the United States. yr Air Freezing Index Map and Mean Annual. In general, the deeper the average frost depth, the greater the likelihood of frost. Oct 23, 2003 Table of frost depths per type of (backfilled) soil & frost zone is Table 82. Snow Depth Snow Depth Delta Water Year Peak Date of Water Year Peak Snow Density Snow Density Delta Precipitation Precipitation Soil Moisture. For panfish, it plays a big deal but I find the walleyes are usually aggressive enough that they dont care. Division 3300 - Structural -. The actual frost depth is affected by the material type, soil thermal properties, soil water content, and climatic conditions such as temperature, wind speed, precipitation, and solar radiation. The map on the right depicts the depth that the ground is frozen under sod across the state. The maps are updated each day and show forecasts for the next 48 hours. Take a look at our frost depth map above to see the frost line in your area. The map on the right depicts the depth that the ground is frozen under sod across the state. Photo of a recently retrieved frost tube during the Snow Depth and Snow Water Equivalent (SWE) measurement. 5" Height 66. Frost heave map for North America & Canada What problems can frost heaving cause The pressure of frost heaving can crack basement walls - especially when built of CMU or brick - or with the lifting forces of frost heave caused by " adfreezing ," which occurs when soil freezes to the surface of a foundation. The map on the right depicts the depth that the ground is frozen under sod across the state. Certification Form 128. &183; This map is from the National Snow and Ice Data center and shows the frost line map across the United States. While it doesnt work on the screen shot, you can mouse-over the points on the map on the website and see the individual reports. Frost lines vary by latitude and are deeper closer to the poles. Accordingly, those portions of the foundation that are set 6 feet or more inward from the skirting may be 12 inches shallower than the depths shown in Map 1. 5" Height 66. ) in 1950. We typically use 72". Low pressure will bring locally heavy precipitation to the Pacific Northwest, much of California, and the Great Basin today and tonight, before pushing into the Rockies by Monday. 1 - Jan. 1 - Jan. Why take a footing down 4 m when the soil was not frost susceptible and the groundwater level was so low. Map from Climatological Analysis of Historical Frost DepthFrozen Ground Data in Wisconsin through 20152016 winter -- From Milwaukee Sullivan National Weather Service Office 2018 Maps of Midwest soil temperature-frost depth from North Central River Forecast Center (only available during this season) Severe Winter Weather. Apr 3, 2014 In the absence of snow, frost was initially detected at a depth of 810 cm. Measurements were made by U. Using these modeled frost depth estimates, an extreme-value climatology for the maximum depth of soil freezing. 6 m (24 in. to be less than the local frost depth, meaning cost sav-ings are still available. National Water & Climate Center Overview; Snow Program Overview;. Here is a screenshot of this mornings map. Then take a site with clean gravel, as at LaCross, WI and estimate the depth of freeing under a roadway that usually is plowed. 1(1), the frost line depth strength required for weathering shall govern. Spatiotemporal interaction of near-surface soil moisture content and frost table depth in a discontinuous permafrost environment. Illinois State Water Survey - Water and Atmospheric Resources Monitoring Program (WARM)- IllinoisSoil Data. Division 3300 - Structural -. Department of Commerce. Frost depth varies across the state in January 2018, but is generally deeper than it was last two years. 65 inches (931 mm), maximum annual rainfall 80. Heavy snowfall can be expected in higher elevations, with several feet possible across the Sierra. Frost Depth Weather. Figure 3 Frost protected shallow foundations vs. This depth is determined by the frost line in your area and the map below will show you how deep you need to dig to safely place your footings. Mar 9, 2022 Frost depths are similar to what was seen two weeks ago. Foundation Frost Protection. ) WiFi Connected No See More Call For Best Price (207) 872-5941 Call to Purchase We Price Match Overview Specs Documents Delivery Warranty. Measurements were made by U. Measurements were made by U. Search Kentucky Frost Line Map. Click on the map or select one of the data views below Probability and forecasts available Forecasts available 0 total gauges No Locations in flood 0 Gauges Major Flooding 0 Gauges Moderate Flooding 0 Gauges Minor Flooding 0 Gauges Near Flood Stage 0 Gauges No Flooding 0 Flood Category Not Defined 0 At or Below Low Water Threshold. The minimum yield strength of reinforcing steel shall be 40,000 psi (Grade 40) (276 MPa). Frost is a solid deposition of water. Then take a site with clean gravel, as at LaCross, WI and estimate the depth of freeing under a roadway that usually is plowed. Depth of ground frost. . oanda live rates