Wood bridges offer ways of crossing natural settings with structures that fit the surroundings.? Although wood bridges are not practical for every application they are perfect for many – affordable, simple, durable, and beautiful.

Affordable:? Depending on the design, wood bridges can be built for as little as 1/3 the cost of steel and concrete bridges and have lower maintenance costs as well. Building wood bridges over crossings might be a great way for landowners and small municipalities to save money as well as add aesthetic value to their byways.

Simple:? Many practical wood bridge designs require less skilled labor (no welders or concrete workers and smaller equipment) to assemble and less time than steel and concrete bridges.? Simplicity equates to a savings of time and money.

Durable:? Effectively designed and constructed wood bridges should easily last 50 years and there are many that have been in services for much longer than that. Wood treatments and coatings available today should protect the foundational structure of a bridge so it will last virtually forever.

Materials for Wood Bridges

Like any project, wood bridges will last longer when built with three major components in mind.

• Quality Design
• Quality Materials
• Quality Construction

We will focus on quality materials for wood bridges here.? You can buy bridge plans or have yours custom engineered and you can hire a bridge building company, local contractor, or build the bridge yourself with the proper design and instructions.

Use properly treated wood for your bridge components, especially for the pilings and other foundation materials.? .60 pcf treated wood should be sufficient for most locations but if you are building around saltwater, you should probably use a stronger treatment for the foundation components – especially if the bridge will actually be in contact with saltwater.

To add longevity to your bridge use poly coated wood like the stuff from American Pole And Timber (they also have a full line of bridge timbers and bridge decking) for all of the ground contact components.? It is sprayed onto treated wood before installation and provides an extra layer of protection that should easily add another 25 years to the wood (at least). It actually bonds to the wood but you can still cut, nail, or drill into it.? It is really good stuff – initially designed for use on saltwater marine pilings (where is has a 25 year warranty).

Your wood bridge’s hardware should all be stainless steel, galvanized, or zinc coated.? There are other special hardware coatings out there but stainless, galvanized, and zinc are proven and affordable.

Plans for Wood Bridges

Buy Wood Bridge Plans Online:? There are numerous places to buy wood bridge plans online – so many, that I will not even link to them here.

Bridge Plans from Competition:? Here are some great bridge designs and plans I found recently. It is a wood bridge building competition for University-level engineering students. “The? National Timber Bridge Design Competition? is open to student chapters of American Society of Civil Engineers (ASCE) and Forest Products Society (FPS) in the United States and Canada. Joint or cooperative entries (ASCE and FPS working together) are eligible and even encouraged. A chapter may also submit multiple entries.”

The young folks in this competition come up with some creative, effective, and practical designs for wood bridges.? You might be able to apply a few of them to your wood bridges. Note:? That is not a suggestion to copy the designs or use them directly as reliable and tested plans but there are some great ideas there.

Book about How to Build Wood Bridges:? This is a really nice book that has some designs and plans for building wood bridges as well as plans for building other wood projects.

Wood bridges can certainly be built as a diy project. Please make sure you have your bridge professionally designed, though, or at least hire a professional contractor to help you. Using the right materials will not only improve the safety of your structure but will ensure that your bridge will be long-lasting as well. Wood bridges should be built to last – they should stand as legacies to be used for generations to come. That might sound nostalgic or something but, well, I guess it is.

Need to build your privacy fence on a slope? It’s not hard as long as you plan and build carefully. You have four options. You get to decide which is best for you. Here they are:

Level Rails, Level Pickets: As my amazing drawing below shows, this method gives the top of the fence line a stair-step look. The tops of the pickets will be more stable and supported than the bottoms of the pickets. You could strengthen the bottom of the fence with a rot board running parallel to the ground. Using level rails means you either have to put your rails closer together or use fewer rails.

Level Rails, Sloped Pickets: The top of the fence line is parallel to the ground but the tops and the bottoms of the pickets are left unsupported. You can strengthen the fence pickets at the top with a top rail, which also makes the fence look nice, and you can strengthen the bottom with a rot board.

Sloped Rails, Sloped Pickets: I like this one the best but you have to decide how level you want the top of the fence. Do you want to trim the tops off the fence pickets or do you want to leave them untrimmed with a small rise from picket to picket? It’s up to you and it barely matters. This is my favorite method because it easily allows for three rails AND the pickets are well-supported from top to bottom along the length of the fence.

Sloped Rails, Level Pickets: This is my second favorite method because it allows for three rails but the drawback is that you still end up with pickets that are unsupported at their tops. If you want the stair-step look in your fence, this is probably the way to go.

IMPORTANT (REALLY): If you are building a gate on the slope portion of your fence, put the hinges on the DOWNHILL side so it will open towards the downhill side instead of swinging into the hill.

Level Rails versus Sloped Rails:? Unless you are building your fence on unusually rough or unlevel terrain, I would suggest always sticking with sloped rails and sloped pickets. Levels rails are easier to build if you are building in an area where you have to move a lot of rocks or something. Some people might just prefer the straighter lines of the level pickets.

Whichever method you choose to build your fence on a slope, you can use a rot board at the bottom to strengthen the fence and protect the bottoms of the pickets and a top rail will improve the looks of your fence and provided additional strength up there as well. Screws are better than nails and always use properly treated wood.

Here are more tips on how to build a fence that lasts.