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Upper level GWB

Length of GWB: 4750’

Eight lanes: 38,000’

Six lanes: 28,500’

Four lanes: 19,000’

Two lanes: 9500’

Avg length of Semi: 72’

Max semi weight: 80,000#

Avg semi weight: 50,000#

Avg space between semis in traffic jam (following distance): 4’

One semi length including following distance: 76’

Two lanes closed on GWB traveling east/north. Traffic at a dead stop. Total bridge length of two lanes @ 9500’.

9500’ / 76’ @ 125 semis.

Weight of semis on bridge (including following distance) @

Bridge weight Capacity:


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don johnson

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