6-3 Wetlands Impacted and Mitigated Under the Federal-Aid Highway Program: 2000-2006

6-3 Wetlands Impacted and Mitigated Under the Federal-Aid Highway Program: 2000-2006

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  2000 2001 2002 2003 2004 R2005 2006
Acres:              
Impacted 2,041 1,905 1,942 1,278 847 1,139 591
Mitigated 7,671 4,017 5,198 3,431 1,763 3,741 1,414
Gained (net) 5,630 2,112 3,256 2,153 916 2,602 823
Mitigation ratio 3.8:1 2.1:1 2.7:1 2.7:1 2.1:1 3.3:1 2.4:1

Key: R = revised.

Notes: These data cover wetlands acreage affected by Federal-Aid Highway projects, approximately 24% of the total mileage of the U.S. public roads. These data are collected by states using varying collection methodologies. The mitigation ratio equals acres mitigated to acres impacted. Acres gained data have been revised for 2005.

Source: 2000-2004U.S. Department of Transportation, Federal Highway Administration, Federal Highway Administration Wetland Mitigation Performance Measure for Federal-Aid Highway Projects Fiscal Year (FY) 2004, available at http://www.fhwa.dot.gov/environment/perform/ as of November 2008. 2005-2006SDOT, FHWA, personal communication, August 2007.