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Home My WebLink About96-144 Resolution No. 96-144 RESOLUTION APPROVING THE WALTON ISLAND RESTORATION PROJECT BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF ELGIN, ILLINOIS, that it hereby approves the Walton Island Restoration Project dated May 8, 1996 . s/ Kevin Kelly Kevin Kelly, Mayor Presented: May 8, 1996 Adopted: May 8, 1996 Omnibus Vote: Yeas 7 Nays 0 Attest: sl Dolonna Mecum Dolonna Mecum, City Clerk r • in r _ Agenda Item No . April 16 , 1996 TO: Mayor and Members of the City Council FROM: Richard B. Helwig, City Manager SUBJECT: Walton Islands Restoration PURPOSE The purpose of this memorandum is to provide the Mayor and members of City Council with information to consider the Walton Islands Restoration project. BACKGROUND During the 1996 budget sessions, the City Council chose to reduce the funds for the Walton Islands Restoration project with specific instructions to install the previously pur- chased bridges and incorporate soft edge shoreline treat- ment. Staff contacted a number of experts, including Mr. Don Roseboom, State of Illinois Office of Water Quality, who is considered to be the expert in stream bank restoration. A combination of Tri-Lock (or equal) , Lunkers and minimum use of Fiber Rolls was recommended for Walton Islands . In addi- tion to the shoreline treatment and bridge installation, the Highland Avenue stairs and accompanying peninsula will be removed, grading done and a paved path built for ADA accessi- bility. Reforestation would be bid as an alternate. Attachments to this memorandum include the Revised Master Plan for Walton Islands (soft edge treatment) , a Preliminary Cost Estimate, and product literature on the Tri-Lock erosion control system. COMMUNITY GROUPS/INTERESTED PERSONS CONTACTED The conceptual plans were reviewed by the River Front Develop- ment Committee, Parks and Recreation Advisory Board and a public meeting was held in March. FINANCIAL IMPACT Walton Islands Restoration improvements totaling $430, 000 has been budgeted in Account No. 275-0000-791-92 . 32 , project number 507400, Riverboat Fund - Land Improvements . Walton Islands Restoration April 16 , 1996 Page 2 LEGAL IMPACT None. ALTERNATIVES None. RECOMMENDATION It is recommended that the Mayor and City Council approve the Walton Islands Restoration project. Respectfully submitted, Monica Bates, Director Parks and Recreation 13 , Richard B. Helwig City Manager jp/kb r r �1 .FIBER RO!! (OR EOUAU IDN GETT EXTILE \ �"TTI C uenAR l'CONCRETE LLTIKER lyLUNKERS O� I i� CULTURAL ARTS CENTER ST— ATERIEVELONTRE iWNps RIVER 9`/' �i -- • L \ \/�J� �' AT sTARveD RDu.iwNps. \.• \ ,® a. Y� • �> 1{ \\\\ C-0 /--1 TRI-LOCK toR Eounu SCALE:NONE APPROVED BY �- \ ` \,& CITY COUNCIL SCALE.1'=40'-0' / MAY 8, 1996 E eP�o� NOTE: /a.tiO PJB WP Ep .RE ESTATp ANDL TlN S—RE.IDEREOANALTERNrE ND. ' ¢ d CITY OF ELGIN _ p WALTON ISLANDS E DEPARTMENT OF PARKS AND RECREATION d REVISED MASTER PLAN ..'�' ELGIN,ILLINOIS 60120-5555 (SOFT EDGE TREATMENT) �J PHONE:847/931-6786 FAX 847/931-6144 Walton Islands Preliminary Cost Estimate 26 February 96 CODE ITEM Qty. Unit Cost Sub. Total 1 . Removal/Demolition 2 $12 ,000 . 00 of Bridges 2 . Bridge abutment 6 $11, 000 . 00 $66 , 000 . 00 3 . Tree Trimming & $10,000 . 00 Removal 4 . Lawn 6925 SY. $3 . 00 $20, 775 . 00 5. Removal Highland $ 1, 000 . 00 Ave. Steps 6 . Excavation of $105,000 . 00 Peninsula and Regrading North and South Island 7 . Hauling/installation 3 $15, 000 . 00 $ 45,000 . 00 of bridges 8 . Highland Avenue $ 2, 000 . 00 Bridge repair 9 . Asphalt Path 10( 0 Lf. $25 . 00 $25, 000 . 00 10 . Tri-lock 40,000 SF $2 . 35 s . f . $94,000 . 00 (material only) 11 . Tri-lock installation 46, 000 SF $1 . 00 s . f. $40,000 . 00 Contingency $ 9,225 . 00 TOTAL PHASE 1 : $430, 000 . 00 1996 Budget Amount: $430, 000 . 00 Alternate Bids : ITEM AMOUNT 1 . Walton Point $14 , 900 . 00 2 . Reforestation $23,500 . 00 Shade Trees, Flowering Trees Shrubs, Ground Cover and Wetland Perennial 3 . Southern Connection 200 L.F. $5,000 . 00 Path to Hemmens 4 . Lights on Walton $95,000 . 00 Islands 5. Lights on Bridges $30, 000. 00 Note: Estimates are based on those prepared by EDAW and American Excelsior Company. WALTONCE.296/TEXT081/PDCOORDI .AT Tri-lock a"'SPECIFICATIONS: EROSION CONTROL SYSTEMS' TRI-LOCK BLOCKS 4010 4015 4020 8030 HEIGHT 4 in. 6 in. 8 in. 12 in. Q MODULE 16 in. 16 in. 16 in. 32 in. WEIGHT PER SO. FT. 32 lbs. 45 lbs. 64 lbs. 90 lbs. WEIGHT OF BLOCK PAIR (Approx.) 50 lbs. 70 lbs. 100 lbs. 560 lbs. CONCRETE STRENGTH, 3000 psi OPEN AREA (Approx.) 20% TRI-LOCK MATS Available Dimensions: STANDARD WIDTH 4 ft.-8 in. 4 ft.-8 in. Information 6 ft:10 in. STANDARD LENGTHS 16 ft. 16 ft. available Up to 48 ft. 18 ft.-8 in. 18 ft.-8 in. upon request 32 in. modules NOTE: Special lengths made to order in large quantities. MAT WEIGHTS PER LINEAR FOOT 150 lbs. 210 lbs. Varies 620 lbs. 16 FT. MAT 2400 lbs. 3360 lbs. 18 FT-8 IN. MAT 2800 lbs. 3900 lbs. AVAILABILITY TRI-LOCK is well established nationwide and is made available through a if required for the duty of the carrier as indicated above. A side flap of not portable wet casting operation or manufactured on standard concrete block less than 9"shall be provided to assure overlap of the filter panels assuring machines used in concrete block manufacturing plants. Generally,TRI-LOCK irtecrity of the filter blanket. is offered at or near the construction job-site on standard wooden pallets in mat form. llt'STALLATION GENERAL SPECIFICATIONS TRI-LOCK is installed by contractor's personnel using standard equipment whether the system is installed by hand placing or through the use of pre- TRI-LOCK flexible erosion control systems shall be comprised of three direc- assEmbled mats. A TRI-LOCK representative is generally available to advise tonal interlocking concrete components of the sizes shown above, overlay- and assist the contractor. It is not necessary for the contractor's crew to have ing a filter fabric, as specified. previous experience or special skills in order to economically install TRI-LOCK. The TRI-LOCK System may be hand assembled on the bank by interlocking Site Preparation: Before placing the TRI-LOCK system,the slope shall the components in a manner that allows maximum flexibility but discourages be inspected to insure that it is free from obstructions such as tree roots, vertical movement of any single component. projecting stones or other foreign matter.Voids or soft areas should be filled The concrete components shall be precast units having a compressive strength with suitable materials and well compacted. Although some variation in con- of not less than 3,000 psi. The oven-dry weight shall be not less than 125 tour will be allowed,no sudden changes in level can be accepted.Hand lbs. per cubic foot, as per ASTM C145, except that not more than 5% of dress where necessary. components on any single mat shall be accepted under this minimum. Com ssiv e testing shall be conducted on 2"cubes cut from random samples TRI-LOCK revetment systems are normally backfilled with topsoil at the rate pre of ssivTRI-eOCK components. of 1 cu. yd. of topsoil to 200 sq. ft. In the event that revegetation is not provided for,then the revetment must be backfilled to an average of 1"cover The carrier filter fabric shall be of sufficient strength to support not less than on the filter fabric for the protection of the filter fabric against UV rays.This 11/2 times the weight of the mat when slung by lifting at the ends.The carrier backfilling should be executed within 14 days of completion of revetment. filter fabric shall consist of a suitable fabric,as separately specified,reinforced Average material required will be 1 yd. to 500 sq. ft. American Excelsior Company AN EMPLOYEE OWNED COMPANY P.O. Box 5067 1850 Ave. H East/Arlington TX 76011 /(817)640-1555/Telex 735298 AMEXCO/Telefax(817)649-7816 r ryh�oo�c Qo LOCK BLOCKS 34 LBS. KEY BLOCKS 17 LBS. �S ''�•* ei oc�S•• 0t Block System Block Polr Height Unit Weight Open Area weigh Brea covered 4 Inches 30-32 lbs/sq.ft. 20 percent 50-52 lbs 1.54 sq.ft. Figure 2.3. Block geometry and system specifications, Tri-Lock 4010 revetment. 25 Resource Consultants & Engineers, Inc.