We've spanned the creek in our backyard with a bridge. The main deck was salvaged from a nearby home - it was an outdoor wheelchair ramp no longer needed. The ramp didn't quite span our creek - 16' wide from bank-to-bank. So I build a rough support of 4x4s - also salvaged from the woods. And then constructed a small 4' deck to span the gap. All the wood is salvaged pressure-treated wood. Home Depot sells cutout lumber for .50 to $2, depending on the length & quality.
The pre-cast concrete footings were purchased at HD for about $6 each.
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Sept. 22, 2009
Massive rains washed several logs and tree trunks down the stream. The water level was the highest I've ever seen. The water even jumped the bank downstream.
A large sodden stump came rolling down the stream and crashed into the bridge footings, taking them out. The bridge washed about ten feet downstream, damaged, but not broken.
I need to reset the footings and place the bridge back on them. Then some streambed fortifications are in order to divert future large logs from hitting the bridge supports.
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