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SB1595 - 104th General Assembly

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104TH GENERAL ASSEMBLY
State of Illinois
2025 and 2026
SB1595
 
Introduced 2/4/2025, by Sen. Jil Tracy
 
SYNOPSIS AS INTRODUCED:
 
615 ILCS 5/40 new
    Amends the Rivers, Lakes, and Streams Act. Provides that, for construction related to worst-case analysis flood events, the Department of Natural Resources shall (1) for levee improvements, provide notice of submissions, a detailed timeline, specific requirements, and any internal review procedures to the submitter within 90 days; (2) for rural construction along navigable waterways, permit a water surface profile increase of 0.5 feet; (3) for urban construction, permit a water surface profile increase of 0.1 feet; and (4) require a mitigation analysis only if water surface profile increases exceed an induced head study. Effective immediately.


LRB104 06575 LNS 16611 b

 
 
A BILL FOR
 
SB1595LRB104 06575 LNS 16611 b

1    AN ACT concerning transportation.
 
2    Be it enacted by the People of the State of Illinois, 
3represented in the General Assembly:
 
4    Section 5. The Rivers, Lakes, and Streams Act is amended 
5by adding Section 40 as follows:
 
6    (615 ILCS 5/40 new)
7    Sec. 40. Department requirements. 
8    (a) For the purposes of this Section:
9    "Base condition" means the current pre-permit top of levee 
10elevation profile, cross-sections, and levee centerline 
11alignment. 
12    "Induced head" means:
13        (1) the change of the water surface profile; and
14        (2) any change in water elevations upstream or 
15    downstream of the proposed improvement due to the change 
16    of a base condition in levee height to a proposed 
17    condition in levee height or encroachment.
18    "Proposed condition" means the change requested for State 
19and federal permits. 
20    "Worst-case analysis" means flood events up to and 
21including 1% annual chance of exceedance (100-year frequency). 
22    (b) Notwithstanding any other provision of law, the 
23Department shall require the following for construction 
 
 
SB1595- 2 -LRB104 06575 LNS 16611 b

1related to worst-case analysis flood events:
2        (1) with respect to the Department's permit process 
3    for levee improvements, the Department shall provide 
4    notice of submissions, a detailed timeline, specific 
5    requirements, and any internal review procedures for 
6    review to the submitter within 90 days;
7        (2) with respect to Department standards for 
8    construction in rural areas along navigable waterways, the 
9    Department shall permit a water surface profile increase 
10    of 0.5 feet;
11        (3) with respect to Department standards for 
12    construction in urban areas, the Department shall permit a 
13    water surface profile increase of 0.1 feet; and
14        (4) with respect to mitigation analysis, a mitigation 
15    analysis shall only be performed if a water surface 
16    profile increase of 0.5 feet in rural areas, or of 0.1 feet 
17    in urban areas, exceeds an induced head study.
 
18    Section 99. Effective date. This Act takes effect upon 
19becoming law.