Bascule bridge

(redirected from Bascule span)
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a counterpoise or balanced drawbridge, which is opened by sinking the counterpoise and thus lifting the footway into the air.

See also: Bascule

References in periodicals archive ?
The structure of the existing bascule span will be replaced with variable depth steel girders, which will significantly extend the useful life of the bridge while significantly reducing maintenance costs.
When completed, the bridge will be 26 m wide and the bascule span 36 m long.
By 1995, the old bridge had deteriorated to the point where it was feared the bascule span might jam in the closed position cutting off shipping traffic.