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Required Concrete Exposure for Boat Ramp - Structural engineering general discussion - Eng-Tips The ramp is graded for proper slope and then layers of stone create the base. Our professional concrete finishers pour a thick, high psi mix concrete utilizing rebar or fiber mesh to insure a strong boat ramp. The construction of a boat ramp in a body of water is easier using pre-stressed concrete planks. Made just for the purpose, these planks offer ease of use, strength, correct sizing and rapid ramp construction. They also eliminate the need for cofferdams and pumps. Nov 08, �� Concrete ramps should have drainage grooves trowelled into their surface, sloping away from the centre of the ramp. Ramp Depth. The foot of the ramp should be about m (4') below the surface at low water. Many places won't give you a permit to go any deeper (and there's rarely any need to), but if the foot of your ramp is too shallow, it'll.
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The bed for the concrete planks should be level and about six feet wider than the ramp planks. Heavy equipment will be required to lift and place the concrete planks. Planks are available in various widths, up to 26 feet from some sources, and are very heavy. Start from the top of the ramp and place the planks down the ramp and into the water. Be certain to have adequate planking under water to accommodate any boat that might be launched. Larger crushed stone, in the four- to six-inch range, should be used to extend and protect the underwater end of the ramp.

This will prevent erosion caused by outboard motors during loading of boats. You need to have a proper parking space for your boat. It would be better if your parking area is at the same location as your boat ramp, so you need to haul your boat and bring it to the nearby parking.

But if you want to have your boat parking space elsewhere, you must be ready for the transport process. The design and size of your boat ramp depends on the size of your boat. But if you have the smallest boat, you can opt for a bigger ramp so you can be ready for the future.

You never know when you can afford to build or buy a new larger boat. Plus, you may have other friends who want to use your ramp as well. In building your boat ramp, you have to make sure that depth of the water is at least three feet high, and not less. The water level must always be enough to keep your boat afloat without causing problems with the bottom of the boat and the bottom of the water.

You must be able to launch and retrieve your boat seamlessly, and you can do that by keeping the ramp height at three or four feet. Going lower than three feet can cause damage to your boat and ramp, which is a huge headache for you in terms of repair. There are different materials for the construction of a boat ramp, but you should choose the highest quality materials in order to build a heavy duty ramp.

In a simple boat ramp, the basic materials you need are:. If you are using a boat trailer to launch or haul your boat, you need to measure the whole length of the vehicle and multiply the measurement by two. The sum is the recommended length of your ramp. And then you need to determine the size of the trench that you should to dig for the boat ramp construction.

There is no one way to build a precast boat ramp, so bring us your specifications. From there our engineers will design plans to meet jurisdictional code. In addition to custom products like boat ramps or railroad crossings, Columbia Precast Products also creates manholes , catch basins , vault structures , and more. Our managerial and production staff have more than years of precasting experience and are very familiar with Oregon and Washington State Department of Transportation requirements.

Whether you need standard products, custom pieces, or a combination of the two, Columbia Precast Products has the expertise to manufacture single boat launches or multiple wet wells with consistent quality. Our controlled facility allows us to control the precasting process from the mixing to the final strength testing. Have an upcoming project that requires concrete work? Contact us today.

We are the premier precaster in Washington and Oregon, offer fast turnaround times, and will deliver directly to your job site. Careers Washington Precast Oregon Precast.

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