Final Report - Department of the Environment

Mitigation Structure Pacific Hwy 2003 (estimated average) Gungahlin Drive Extension 2005 (estimated average) Pipe Culvert underpass (1.8m diameter) $ 50, 000 Box Culvert underpass (3x3) $ 225,000 $ 334,900 Arch Underpass (4.5 x 12) $ 300,000 $1.7 million Arch Underpass (8 x 21) $ 901,000 Arch Overpass, Twin (8.5 x 15) $1,000,000 Arch Overpass ... ................
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