{"id":10555,"date":"2019-05-22T07:00:58","date_gmt":"2019-05-22T07:00:58","guid":{"rendered":"https:\/\/fightfastvideos.com\/blog\/?p=10555"},"modified":"2021-04-05T14:36:25","modified_gmt":"2021-04-05T14:36:25","slug":"surviving-floods-rivers-safe-fording-by-mark-hatmaker","status":"publish","type":"post","link":"https:\/\/fightfastvideos.com\/blog\/2019\/05\/22\/surviving-floods-rivers-safe-fording-by-mark-hatmaker\/","title":{"rendered":"Surviving Floods, Rivers & Safe Fording by Mark Hatmaker"},"content":{"rendered":"
\n\nI compose these brief notes while the unfortunateness of Florence takes aim at the East Coast. I offer it in the hopes that we may have it at the fingertips of our minds for as Seneca reminds us \u201cWhat has befallen one man may happen to all\u201d<\/em> or as the Boy Scouts would say \u201cBe Prepared.\u201d<\/em>\n\nThe following ideas are gleaned from naturalist studies in river-dynamics, the frontier scout tradition, and an American Indian tactic or two. Keep in mind when we discuss river-fluid mechanics these same mechanics will hold for \u201cconcrete rivers,\u201d that is, streets turned to river by flood.\n\nRivers basically have two broad aspects to their composition Upland<\/strong> & Lowland<\/strong>. In the Upland portion the land is steeper and we find more energetic water. In the Lowland phase, it flattens out and at times we may see only a yard drop in elevation in a \u00bd mile of travel. The idea to keep in mind is that the faster or more energetic the flow the closer to the source we are, and the more care we must exercise when entering the river.\n\n\n[dfads params='groups=292&limit=1&orderby=random']\n

Upland River Characteristics:<\/h4>\nSpeed, energy, sometimes narrow and steep channels, and waterfalls. You can judge the energy the upland river possesses in full flow by the size of the boulders, the debris, the scatter of vehicles in the middle and along the banks. The larger the debris the more energy.\n\nAlso \u2014 the sound. Upland rivers often provide white water noise, not just as found at a waterfall, but in general as it breaks over rocks and debris, or simply the sounds made by its rate of flow.\n

Lowland River Characteristics:<\/h4>\nThe Lowland River Phase is usually broader and has longer straightaways and typically silent unless something is plunked into it.\n\nIf we know that we must cross a river or flooded street, it is wise to choose lowland phases where we can, move downstream where possible, and avoid narrowing channels that will multiply the water\u2019s energy.\n
\n\t\t[dfads params='groups=290&limit=1&orderby=random']<\/div>\n

Lee-Scree as Force Indicator:<\/h4>\nLee-scree is the debris deposited by a river. In the wild, the rocks, boulders and logs we find within the main channel and along its banks. In the urban river\/flood the cars, and all other detritus swept into its path. By noting the size of the lee-scree in a river or stream we can gain an idea of how much energy the river has when flowing at force. Large boulders, rocks, etc. tell us this river carries a great deal of power, not the best place to interact with the river.\n

Lee-Scree as Flood Phase Indictor:<\/h4>\nLee-scree seen deposited above ground in \u201cdry areas\u201d at the side of a river tells us that the flow is subsiding or that we are moving to a lowland phase. Lee-Scree still in the flow at the side of the river tells us there is still more to come.\n\nWater moves more quickly around the outside bend of a river or stream than the inside.<\/u><\/strong> Think of street corners and curving streets as correlates for river-bends. This info is useful for both reading scree and ford attempts \u2014 don\u2019t look to the flow of the inside bend to judge a crossing, look to the outside bend. The inside bend water flow may look smooth and fordable, but a look to the outside bend will tell us what we may expect to find when we\u2019re already a bit exhausted from fording two-thirds of a supposedly \u201ccalm\u201d river.\n\nThis is also useful information for those using canoes, kayaks, etc.\u2014 in allowing current to ease workload \u2014 aim for outside bends when going downstream, inside bends when moving upstream.\n\nThe flow is fastest in the center of the river.<\/u><\/strong> This is all about friction. Sailors, kayakers, seaman of all stripes know that if you want to pile on speed look for the center of the channel or \u201cstream\u201d in areas of open water. The center is often positioned over the lowest point, geographically the Thalweg<\/em>, and the reduced friction center-stream makes for faster flow.\n\nWith the preceding in mind, when fording, expect increased force and deeper water as you near the center.\n\nWhen wading a moving river \u2014 face upstream.<\/strong> If you fall you want to fall towards upstream with the strength of your legs facing downstream to dig in and stop being swept away, or at the very least allowing your legs to be what comes into contact with debris and obstacles rather than your head.\n\n[dfads params='groups=292&limit=1&orderby=random']\n\nAs the speed of water goes up by a factor of 2, the size of the object that can be carried away goes up by a factor of 64.<\/u><\/strong> Keep this foremost in your mind, it is not so much the depth of the flow that is the danger, but speed of flow.\n\nFour inches of moving water can sweep a car away.<\/u><\/strong> We are not nearly as heavy or stable as an automobile.\n\nAgain, it is speed or rate of flow that is often the danger and not depth. Many fall prey to the illusion that is safe to cross ankle-deep water. If it is a lowland phase, go right ahead, if it has high flow \u2014 find a lowland phase.<\/u><\/strong>\n\nI\u2019ll offer one more tip, this one from an American Indian tradition. When the decision has been made to wade a river and there are few exposed dry rocks to cross over on, face upriver and place your feet-toes upriver\/heels downriver \u2014 against the upriver side of rocks as opposed to on top of the rocks.<\/u><\/strong> The force of the water will \u201cstick\u201d your feet to the rocks as opposed to being swept off the top of them. If more stability is required use a stick in the hands to post upriver for balance, or if no stick is handy, lean forward and place the hands on the upriver side of stones and scuttle sideways to ford.\n\nMay this information need never be used, but, judging from the size of the storm\u2026\n\nBetter prepared is better prepared.\n\n\nClick here for ultra-vicious self defense moves and tips from Mark Hatmaker\n<\/strong><\/a>\n\n<\/div>","protected":false},"excerpt":{"rendered":"

I compose these brief notes while the unfortunateness of Florence takes aim at the East Coast. I offer it in the hopes that we may have it at the fingertips of our minds for as Seneca reminds us \u201cWhat has befallen one man may happen to all\u201d or as the Boy Scouts would say \u201cBe Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":10558,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[7,15,17],"tags":[],"_links":{"self":[{"href":"https:\/\/fightfastvideos.com\/blog\/wp-json\/wp\/v2\/posts\/10555"}],"collection":[{"href":"https:\/\/fightfastvideos.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fightfastvideos.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fightfastvideos.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fightfastvideos.com\/blog\/wp-json\/wp\/v2\/comments?post=10555"}],"version-history":[{"count":4,"href":"https:\/\/fightfastvideos.com\/blog\/wp-json\/wp\/v2\/posts\/10555\/revisions"}],"predecessor-version":[{"id":12881,"href":"https:\/\/fightfastvideos.com\/blog\/wp-json\/wp\/v2\/posts\/10555\/revisions\/12881"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fightfastvideos.com\/blog\/wp-json\/wp\/v2\/media\/10558"}],"wp:attachment":[{"href":"https:\/\/fightfastvideos.com\/blog\/wp-json\/wp\/v2\/media?parent=10555"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fightfastvideos.com\/blog\/wp-json\/wp\/v2\/categories?post=10555"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fightfastvideos.com\/blog\/wp-json\/wp\/v2\/tags?post=10555"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}