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 2005 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 R2,602 823
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.

Source: 2000-2004 - U.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://fhwa.dot.gov/environment/perform/wetrpt04.htm. 2005-2006 - USDOT, FHWA, personal communication, August 2007.