Matters On The Ground

Matters On The Ground

A Surveying and Mapping Blog

We build too many walls and not enough bridges.

We find ourselves at the Laurel Street Bridge over the Hillsborough River in Tampa, Florida providing data that verifies the movement of the bascule bridge in 5 degree increments. 


A bascule bridge (sometimes referred to as a drawbridge) is a moveable bridge with a counterweight that continuously balances the span, or "leaf," throughout the entire upward swing in providing clearance for boat traffic.

Bascule is a French term for seesaw and balance, and bascule bridges operate along the same principle. They are the most common type of movable bridge in existence because they open quickly and require relatively little energy to operate.
More info on this facinating bridge and it's history can be found here

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