Excerpted Groveland Avenue Levee project description Full report is available at: http://www.lrc.usace.army.mil/ Missions/CivilWorksProjects/DesPlainesRiverPhaseII.aspx UPPER DES PLAINES RIVER AND TRIBUTARIES, AND

INTEGRATED FEASIBILITY REPORT AND ENVIRONMENTAL ASSESSMENT

January 2015

Study Partnership

Cook County Highway Department (CCHD) Forest Preserve District of Cook County (FPDCC) Kenosha County Lake County Stormwater Management Commission (LCSMC) Lake County Forest Preserve District (LCFPD) Metropolitan Water Reclamation District of Greater (MWRDGC) Illinois Department of Natural Resources (IDNR) Southeastern Wisconsin Regional Planning Commission (SEWRPC) U.S. Army Corps of Engineers (USACE) U.S. Fish and Wildlife Service (USFWS) U.S. Army Corps of Engineers Upper Des Plaines River and Tributaries, IL & WI Chicago District Integrated Feasibility Report and EA

Section 10 Combined Plans January 2015

The design pavement elevation for the bridge modification is 629.1 ft NAVD88. Existing storm drainage lines and inlets would be evaluated and the inlets would be raised as appropriate. Traffic signals at the intersection of River Rd and First Ave would also be evaluated and raised as appropriate.

Operation and maintenance of the roadway would continue according to current IDOT practices. The embankments would be inspected annually and filled and/or repaired as needed. Maintenance activities would include control of vegetation, debris removal, and cleaning and repair of retaining walls and culverts.

Costs associated with this project are identified in Table 10.4 at the end of this section.

Groveland Avenue Levee (CAP DPLV01), Riverside (Plate 24)

The existing Groveland Avenue levee would be extended horizontally to tie back the structure to high ground and vertically to provide additional protection to apartments and residences between Park and Pine Avenues. Two feet would be added to the existing levee height, with the levee tying in to existing high ground at elevation 618 ft NAVD88. The probability that this levee would not be overtopped during a 100 year flood event would be greater than 95%. The community may request the Corps to apply to FEMA for accreditation of the levees under the National Flood Insurance Program (NFIP) at the completion of construction.

The height of the existing levee at Groveland Avenue would be increased using a sheet pile wall along the levee, extending approximately 870 feet. At the north end, approximately 1,250 feet of Park Lane and Lincoln Avenue would be raised to connect the levee to high ground. At the south end of the existing levee, a floodwall would extend approximately 700 feet south from Forest Avenue to tie in to high ground, with a road closure structure connecting the segments at Forest Avenue.

The levee and floodwall alignment would be inspected annually. Annual maintenance activities at levee segments would include landscaping and control of vegetation, fill and/or repair as needed, control of vermin that could comprise the structure. Toe drains would be inspected regularly and flushed as needed. Annual maintenance activities at floodwall segments would include cleaning and treating the structure with repairs to waterstops, cracks, railings, and walkways as needed. Road closure structures would be inspected annually with and periodic maintenance would include painting, cleaning, and repairing the gates.

Costs associated with this project are identified in Table 10.4.

Cook County Non-structural (NED Plan and Comprehensive Plan Increment)

The incrementally justified non-structural component of the NED plan in Cook County would protect homes and businesses through a variety of measures. The non-structural measures would be implemented at structures at risk of flooding in the communities of Buffalo Grove, Rosemont, Des Plaines, Wheeling, Unincorporated Wheeling Township and Unincorporated Leyden Township. The measure implemented at each site will be determined according to the feasibility and cost- effectiveness of implementation determined through a site specific evaluation of the structure. Implementation of non-structural measures at individual properties would be voluntary and dependant on verification of structure characteristics and first floor elevations. With regard to the buyouts, to the

247 U.S. Army Corps of Engineers Upper Des Plaines River and Tributaries, IL & WI Chicago District Integrated Feasibility Report and EA

Section 10 Combined Plans January 2015

Table 10.4 – Cook County Estimated Costs ($1,000)

Preliminary Construction Total First Annual Project Plan LERRDs1 Construction PED Mgmt 2 Costs OMRR&R C09 NED/NER $7,003 $11,260 $1,127 $670 $20,059 $18 Dam #1 CAP $8 $594 $52 $30 $684 N/A Dam #2 CAP $8 $601 $53 $30 $691 N/A C15 NED/NER $8,468 $10,529 $1,055 $639 $20,690 $16 Dempster Ave CAP $8 $512 $45 $26 $591 N/A Dam WLRS04 NED/NER $1,228 $12,525 $1,969 $918 $16,640 $56 DPLV09 NED/NER $2,687 $20,263 $3,219 $1,501 $27,670 $12 Touhy Ave CAP $8 $634 $56 $32 $730 N/A Dam Dam #4 CAP $8 $543 $48 $27 $626 N/A DPLV05 NED/NER $1,112 $14,684 $2,333 $1,088 $19,217 $25 DPLV04 NED/NER $2,829 $14,588 $2,590 $1,208 $21,215 $19 DPRS04 NED/NER $836 $9,888 $1,571 $733 $13,028 $59 DPLV01 CAP $1,452 $3,560 $628 $285 $5,925 $15 Non-Structural NED/NER $22,828 $7,935 $1,198 $559 $32,520 $1 Non-Structural Comprehensive $599 $2,096 $287 $124 $3,106 Nominal (Comp) FPCI01 Comprehensive $146 $959 $131 $60 $1,296 $33 DPBM04 Comprehensive $474 $12,464 $1,706 $766 $15,411 $23 Total Cook County $49,701 $123,636 $18,068 $8,695 $200,099 $277 Comprehensive Plan Total Cook County $46,991 $101,672 $15,062 $7,314 $171,039 $206 NED/NER Plan Total Cook County $1,491 $6,444 $882 $430 $9,247 $15 CAP Plan 1 Includes Lands & Damages and Relocations 2 Includes Construction Management, Monitoring, and Adaptive Mgmt (FY2015 Price Level)

249 612

NOTES:

612 613 TEMPORARY EASMENT

5 615

1 610 6 616 PERMANENT EASMENT 1. THE SURVEY CONDITIONS SHOWN ON THESE 606 6 DRAWINGS ARE FROM LOCAL GIS DATA AND

17 610 REPRESENT CONDITIONS EXISTING AT THAT 616 PARK LN TIME.

0+00

00

00 00

615

00

00

00

+

00

+ W

00

+

+

+

+

0

+

1 +

2 OOD

3 4 8 +

00 5 2. ALL COORDINATES SHOWN ARE REFERENCED

6 7 TO THE ILLINOIS STATE PLANE COORDINATE 611 1+00 PROPOSED S PERMANENT I

SYSTEM, EAST ZONE, NORTH AMERICAN

ROADRAISE D

9 + 00 EASEMENT/ TOP EL. 618 E WORKLIMITS DATUM OF 1983 (NAD83) U.S. FEET.

612 R

2+00 D

10 + 00 615 3. ALL ELEVATIONS SHOWN ARE REFERENCED PROPOSED SSP WALL 616 STA.610 0+00 TO 8+67 TO THE NORTH AMERICAN VERTICAL DATUM

3+00 612

TOP EL. 618 K 616

612 L 6 OF 1988 (NAVD88) U.S. FEET.

I

608 11 + 00 17 I

M

613

613 609

N

B

C

A

D 4+00 O 4. STEEL SHEET PILE WILL BE DRIVEN INTO THE

R 610 E

L

K

S 12 + 00 N EXISTING LEVEE ALONG GROVELAND AVE. TO

AV

P

AV 614 RAISE THE TOP ELEVATION TO 618. THE LENGTH

12 12 + + 49 L 5+00 49

E A

E OF SHEET PILE IS 867 LF.

G I

R N

OV E

S 6+00 5. THE PROPOSED FLOODWALL ON THE SOUTH SIDE

EL

R OF FOREST AVE HAS A LENGTH OF 699 LF AND

AND I

V TOP ELEVATION OF 618.

E 7+00

R

AV

615 613

606607 PROPOSED ROAD 608 6. THE PROPOSED ROADRAISE HAS A TOP ELEVATION

E 609 CLOSURE STRUCTURE

8+00 OF 618 AND SIDE SLOPES OF 1(V):2(H).

610

611 612

616 FOREST AVE 7. ONE ROAD CLOSURE STRUCTURE WILL BE REQUIRED TEMPORARY EASMENT 00 9+ AT FOREST AVE TO CONTINUE THE LINE OF FLOOD PERMANENT EASEMENT/

WORKLIMITS 616 PROTECTION. 610 10+00

STAGING AREA 611 610 617

W

E 610

S

T 11+00 612

AV 613

E

617

12+00 615 PINE AVE

7

611 610 610

60

PROPOSED FLOODWALL 3

1

612 18 6 STA614 9+25 TO 16+24

13+00 6 200' 100' 0 200'

3 TOP EL. 618 619

614

1 615 N 6 612 615 617

14

+00

618 610 619

616 616 SCALE: 1''= 200'-0"

15 +00 620 UPPER DES PLAINES RIVER

609 620 617 AND TRIBUTARIES 606 EXISTING

1 621 6 610 U.S. Army Corps +00 FEASIBILITY REPORT AND 608 16 RAILROAD TRACKS D of Engineers +24 R ENVIRONMENT ASSESSMENT 610 618 615 Chicago District BANK NG 619 MI OO

BL DPLV01 FLOODWALL 611 620 606607 CONCEPTUAL SITE PLAN

RIVERSIDE , COOK COUNTY, IL

SCALE: DATE: DRAWING CODE: 1" = 200' MAR 2014 DPLV01_Siteplan.dgn PLATE 24