I have a canal 16 feet across. I want to put a 4 foot wide bridge over it using 2 beams spread 3 ft. What size beams are needed. Load = 700?
- Anonymous7 months ago
Steel? Wood? Something else?
What do you plan to lay on the beams?
- oldschoolLv 78 months ago
Bridge design on yahoo answers? 700lbs? 16ft is a little long without some support midway. The stronger the beams, the heavier they are. Maybe two pine tree trunks properly anchored at both ends
- 8 months ago
700, huh? 4 foot wide bridge with 2 beams 3 feet apart. 700 what by that way?
- JosephLv 78 months ago
And are the beams made of high strength steel or Swiss cheese? It does make a difference, you know.
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- Anonymous8 months ago
- Ronald 7Lv 78 months ago
20 inches would do the job