their is no shape
The weakest type of bridge would be a board across gully.
Triangels are the strongest shape so make a triple triangle design i aced it that way +++ The plank bridge is the weakest as it is just a simple beam with no central support or stiffening for the span. The other two can be designed to comparable strength for a given span, but work in somewhat different ways: the truss bridge acts as a beam stiffened by the truss frames, the arch transmits the forces from the centre to its abutments.
gully erotion is something that makes trenches
The plural of gully is gullies. As in "this is the gullies".
The Don wants to be a gully!
Jack Emmott is THE Gully God
there was a murdering in Green Gully Lions .
gully means a bird with gray and white feathers on it.
Terreon Gully was born in 1982.
Gully of Petrushino happened in 1941.
The Gully Washer was created in 1992.
John Gully was born in 1783.