Agencies
Services
Wetlands
IDOT complies with Section 404 of the Clean Water Act (CWA) and the Illinois Interagency Wetland Policy Act of 1989 (IWPA). Departmental procedures for ensuring compliance with the CWA and IWPA are detailed in the IDOT Wetlands Action Plan, Bureau of Design and Environment Manual, Chapter 26-8. Under the CWA and IWPA, IDOT must demonstrate that all measures were taken to first avoid and then minimize impacts to wetlands to the fullest extent practicable. Unavoidable impacts are mitigated by way of wetland compensation through either restoration or creation of wetlands.
IDOT. The INHS and Illinois State Geological Survey provide technical assistance to IDOT in locating, evaluating and monitoring compensatory wetlands. More information on the Wetlands Group can be found on INHS’s Wetland Science Program webpage.
IDOT Wetlands Compensation Sites
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| County | Site Name | Monitoring Reports | Route and FAP # | Links | ISGS# | Status |
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IDOT Mitigation Sites
Monitoring Reports
Additional Resources
Monitoring Reports
Additional Resources
Monitoring Reports
Additional Resources
Contracts and Plans
June 17, 2005 IDOT Letting
Item 269 Contract No. 72939 (Section D6 WETLAND MITIGATION NO. 1)
Wetland mitigation including earthwork to reestablish wetland ponds, deactivate field tile and drainage ditches located at the LaGrange Wetland Bank in the northeast corner of Brown County; includes clearing and grubbing; 46,039 cu yds earth excavation; 9.7 acres seeding; 2,700 lbs temporary erosion control seeding; 368 ft pipe culverts; 16 metal end sections; 17,400 ft exploration trench; plug 72 existing drains; 3,600 ft field tile deactivation and removal; mobilization; traffic control and protection. (Job No. C-96-510-05) (6-00332-0000)
September 23, 2005 IDOT Letting
Item 074 Contract No. 72967 (Section D6 WETLAND MITIGATION NO.2)
Wetland mitigation located at the LaGrange Wetland Bank in the northeast corner of Brown County; includes 40.7 acres interseeding; 40.7 acres mowing; 2,199 shade trees; tree care; 30 units tree intermediate and shrub watering; 2,932 tree trunk predator protection; 20 gals weed control, non-selective and non-residual; 244.4 acres maintenance mowing; mobilization. (Completion Date: October 15, 2008) (Job No. C-96-508-06) (6-00333-0000),/p>
June 13, 2008 IDOT Letting
Item 287 Contract No. 72968 (Section D6 WETLANDS MITIGATION NO. 3)
Earthwork to re-establish wetland ponds, de-activate field tile and drainage ditches and building embankments for future access roads at the LaGrange Wetland Bank located in the northeast corner of Brown County; includes plug 50 existing drains; clearing and grubbing; foundation removal; 1,500 ft field tile de-activation and removal; 89.6 acres seeding; 108,467 cu yds earth excavation; 18,380 lbs temporary erosion control seeding; 50 tons erosion control aggregate; 182 tons stone dumped riprap; 1,739 tons subbase granular material; 846 tons aggregate surface course; 1,291 ft pipe culverts; 8,000 ft exploration trench; 3,260 ft cable road guard; 3 cable gates; mobilization; traffic control and protection. (35 Working Days) (Job No. C-96-036-08) (6-00334-0000) (0.00% DBE)
April 23, 2010 IDOT Letting
Item 157 Contract No. 72969 (Section D6 WETLANDS MITIGATION 4)
Grading and shaping roadway, aggregate seeding, haul-road repair and other work needed to build access roads and parking areas at the wetland site; includes 117 units grading and shaping roadway; 3.5 acres seeding; 5,850 tons subbase granular material; 270 tons bituminous materials (cover and seal coats); 1,700 tons seal coat aggregate; 300 sq yds patching; mobilization; traffic control and protection. (35 Working Days) (Job No. C-96-071-08) (6-00335-0000)
April 23, 2010 IDOT Letting
Item 16 Contract No. 72970 (Section D6 WETLANDS MITIGATION 5)
Mowing, herbicide spraying, tree planting, tree care and seeding at the LaGrange Wetland Bank located in the northeast corner of Brown County; includes 30 acres interseeding; 14.1 acres seeding; 44.1 acres mowing; 2,160 shade trees; 28 gals weed control; tree care; 22 units tree and shrub watering; 108 acres maintenance mowing; mobilization. (Completion Date: July 15, 2014) (Job No. C-96-051-09) (6-00336-0000)
April 23, 2010 IDOT Letting
Item 17 Contract No. 72971 (Section D6 WETLANDS MITIGATION 6)
Mowing, herbicide spraying, seeding, tree planting and maintenance mowing at the LaGrange Wetland Bank located in the northeast corner of Brown County; includes 20 acres interseeding; 22.4 acres seeding; 42.4 acres mowing; 1,440 shade trees; 29 gals weed control; tree cares; tree and shrub watering; 72 acres maintenance mowing; mobilization. (Completion Date: July 15, 2014) (Job No. C-96-053-09) (6-00336-0100)
Monitoring Reports
Monitoring Reports
Additional Resources
Monitoring Reports
Additional Resources
Contracts and Plans
April 23, 2010 IDOT Letting
Item No. 271 Contract No. 98907
Wetland mitigation located along Sugar Camp Creek, 8 miles north of Benton; includes 405 shrubs; 156 units seedlings; 4,220 gals weed control; 13 cu yds concrete for drainage control structures; 33,755 cu yds earth excavation; 42.25 acres seeding; 80 acres mulch; 765 lbs reinforcement bars; 9,347 ft perimeter erosion barrier; mobilization. (Completion Date: June 30, 2011) (Job No. C-99-019-05) (9-00252-0200) (See Special Provisions for DBE %)
June 15, 2012 IDOT Letting
Item 164 - Contract No. 78278
This project consists of constructing 2 drainage control spillway structures and wetland plants and trees located along Sugar Camp Creek in Franklin County, approximately 8 miles northeast of Benton.