Appendix B - General Engineering

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Franklin Jacobs
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1 ppendix - General Engineering

. GEERL ESIG OSIERTIOS The proposed project is composed of the design of an in-lake sediment retention basin that will capture silt and increase the amount of aquatic wetlands.

2 . GEERL ESIG OSIERTIOS The proposed project is composed of the design of an in-lake sediment retention basin that will capture silt and increase the amount of aquatic wetlands. Three sites named 1, 2, and 3 were proposed from the initial investigation of aerial imagery and were determine by topography to minimize the length of the structure. fourth site named 1 was recommended to the project team by the sponsor based on the concern of access and the need for a reduced amount of real estate acquisition. Figure 1: Site Locations -1

3 Figure 2: Site 1 ankline Figure 3: Site 1 ankline -2

4 2. OSTRUTILITY OSIERTIOS 2.1 onstruction ccess The shoreline of the upper portion of Lake Lou Yaeger remains undeveloped with the exception of various camp sites with docks that are most only accessible by boat. The area is densely vegetated and the terrain near the lake is uneven. One of the major goals of the project was to minimize the impact to the existing ecosystem and existing cleared areas were explored for site access Site 1 ccess The proposed access to site 1 uses an existing road, a pasture, and a clearing in the vegetation for an electric line. The existing road is named Privacy Lane which is a privately owned gravel road that connects 3 residences to ounty Road 650 East. It is assumed that Privacy Lane will require improvement to sustain the transport of construction equipment and improvement upon completion of construction to restore the road to existing conditions. The remaining segment of access road will require the construction of a temporary gravel road across a pasture and existing clearing for an electric line that is an overhead line and turns into a buried line approximately 700 feet east of the lake. The access road will require grading to meet the maximum slopes allowed for construction equipment in EM Section 4 and will also require a culvert to allow for drainage through a gulley during rain events. The width of the haul route is constrained by the terrain, vegetation and the powerline. The contractor will have room to construct turnouts or wider sections of haul route to allow for 2 way traffic passage but a full 2 way haul route would require the removal of long stretches of vegetation which will be avoided. The contractor will also need a method of communication between vehicles or a control plan to coordinate traffic through constrained areas. The access road will also require a temporary construction easement for approximately 1.3 acres of land -3

Figure 4: Site 1 ccess Route 2.1.2 Sites 1 & 2 ccess The proposed access to sites 1 and 2 uses an existing road.

5 Figure 4: Site 1 ccess Route Sites 1 & 2 ccess The proposed access to sites 1 and 2 uses an existing road. The existing road is named emetery Lane which is a gravel road that connects 2 residences and a several of the lakes west bank camping sites to East 5 th Road. emetery Lane is partially located on private land and the sponsor s property. It is assumed that the entire length of emetery Lane will require improvement to sustain the transport of construction equipment and improvement upon completion of construction to restore the road to existing conditions. t some locations the access road would require to allow for the passage of large construction equipment. The access road will also require a permanent construction easement for approximately 1.4 acres of land. -4

Figure 5: Sites 1&2 ccess Route 2.1.3 Site 3 ccess The proposed access to sites 3 uses an existing road and path to a boat ramp on the lake shoreline.

6 Figure 5: Sites 1&2 ccess Route Site 3 ccess The proposed access to sites 3 uses an existing road and path to a boat ramp on the lake shoreline. The existing road is named orth 18 th venue which is a gravel road that connects several residences to ounty Road 650 East. orth 18 th venue is located on private land. It is assumed that the entire length of orth 18 th venue will require improvement to sustain the transport of construction equipment and improvement upon completion of construction to restore the road to existing conditions. The remaining segment of access road will require the construction of a temporary gravel road through an existing path through the wood line. site visit to determine the condition of the road and path was not conducted because site 3 was eliminated from consideration prior to a site visit being completed. 2.2 Rock erm esign onsiderations The results from the average flow velocity data calculated from steady-flow hydraulic modeling was used to determine the design average flow velocity. wide range of flow -5

7 rates moving through the lake were modeled. The selected design velocity was 10 feet per second. This is an average flow velocity was used for initial riprap sizing. However, unsteady-flow hydraulic modeling of a flood event is recommended to better determine the flow velocities at the in-lake berm. It is recommended that unsteady-flow hydraulic modeling of a significant flood event entering the lake be developed for the case in which the lake elevation is at the level of the annual winter drawdown. This case may result in the highest likely flow velocity at the in-lake berm. The product delivery team referenced EM , Hydraulic esign of Flood ontrol hannels for designing the in-lake berm riprap. It was assumed that this scenario would also develop turbulent flows within the in-lake berm. The proposed riprap gradation selected by the product delivery team was a 1000 pound top size gradation. The riprap meets gradation requirements of LMV, Report on Standardization of Riprap Gradation, revised March Gradation of riprap material is as follows: 1000-Pound Top Size Riprap Percent Lighter by Weight Limits of Stone Weight, lb Given the assumption that the lake bottom is comprised of soft sediments, a bedding filter layer was not designed. The product delivery team expects that during placement of the required riprap quantities that a filter layer would be lost into the soft lake bottom. This would make the filter layer ineffective. Furthermore, it was assumed that 50% of the riprap volume placed for the in-lake berm would be lost or settle into the lake bottom during construction. The proposed design for the in-lake berm is to have a 10 foot wide crown and 1V:3H slopes. The 10 foot crown was selected to allow for the construction of the berm in wet conditions. It is assumed that the contractor will dump the required large stone with a smaller choke stone on top starting on one side of the lake and working across until the in-lake berm is complete. For quantity analysis it was assumed that up to 50% of the stone could settle into the lake bed during the construction of the berm. Therefore this additional material was factored into the quantities that were used to determine the cost estimate of the structure. -6

8 Figure 6: Typical Section The top elevation of the in-lake berm is designed to be elevation V 88 based on hydraulic consideration. The elevation 591 V 88 is 0.5 feet below the spillway elevation of the dam. The structure ties into the bank at elevation 596 V 88 with a 1V:10H slope to keep the structure from being flanked during a high water event as shown in the figure below. Figure 7: Site 1 Profile 2.3 ankline Revetment The bankline revetment was designed using SE Manuals and Reports on Engineering Practice o. 124: Inland avigation hannel Training Works. The rock berm tie-in was similar to a dike bankhead and the bank paving option was more favorable then a root tie-in examples shown in hapter 5. To determine the amount of downstream revetment the report suggests using the bank height multiplied by 3 for average conditions. The bank height of 8 feet was assumed to be the bottom of revetment key-in to the top of the structure tie-in. This -7

9 resulted in 24 feet which was rounded up to 25 feet of downstream paving. The report recommended the upstream paving not exceed the bank height therefore the 8 feet was rounded up to 10 feet. The revetment typical section is shown in the figure below. Figure 8: Revetment Typical Section -8

10 TE PPR. WETL RESTORTIO PROJET ITY OF LITHFIEL ESRIPTIO MOTGOMERY OUTY, ILLIIS ESIGE Y: SOLIITTIO.: W Y: K Y: OTRT.: SUMITTE Y: FILE UMER: PLOT SLE:PLOT SIZE: FILE ME: SI LLY_G-001OV.dgn QUTI EOSYSTEM RESTORTIO MOTGOMERY OUTY LITHFIEL, ILLIIS OVER SHEET XXXXX XX, PLTE G-001

HESTER MISSISSIPPI VLI RLYLE IG M U Y R.

11 FIVE MILE LKE FIVE MILE RH W EST FORK SHOL REEK IOW E S M O I E S R I V E R HIL MISSISSIPPI I L L I O I S ILLIIS RIVER HV PEORI SPRIGFIEL LKE SHELYVILLE TE PPR. S L T R. EW MRK TWI LO T L/ RIVER SHELYVILLE PROJET LOTIO MISSOURI JEFFERSO ITY LKE PROJET LOTIO LEGE UIVRE RIVER HERM O U R E U M I S S O U R I R. SE R. ISTRIT OURIES TROY UIO MER M E R. L/ T ST.HRLES I G R. HRI L/ STE.GEEVIEVE L K R. LTO T T L/ ST.LOUIS LKE EST ST.LOUIS WPPPELLO K S K S K I R. HESTER MISSISSIPPI VLI RLYLE IG M U Y R. RIVER RLYLE LKE MURPHYSORO IRO RE LKE OHIO PUH KY RIVER ESRIPTIO ITERSTTE 55 VIIITY MP SLE: TS ESIGE Y: SOLIITTIO.: W Y: K Y: OTRT.: SUMITTE Y: FILE UMER: PLOT SLE:PLOT SIZE: FILE ME: SI LLY_G-002-VI.dgn LITHFIEL, IL ILLIIS ROUTE 16 QUTI EOSYSTEM RESTORTIO MOTGOMERY OUTY LITHFIEL, ILLIIS PROJET LOTIO VIIITY MP PROJET LOTIO MP SLE 1" = 3000' PLTE G-002

12 SHEET. TITLE GEERL G-001 OVER SHEET G-002 PROJET LOTIO VIIITY MPS G-003 IEX OF RWIGS IVIL TE PPR SITE 1 PL PROFILE -102 SITE 1 ESS PL SHEET 1 OF 3 FIVE MILE RH SITE 2 SITE 3-107/110 W EST FORK SHOL REEK -112 SITE 3 ESS ROUTE SITE 1 ESS PL SHEET 2 OF 3 SITE 1 ESS PL SHEET 3 OF 3 SITE 1 PL PROFILE SITE 1 ESS PL SHEET 1 OF 2 SITE 1 ESS PL SHEET 2 OF 2 SITE 2 ESS PL SHEET 1 OF 2 SITE 2 ESS PL SHEET 2 OF 2 SITE 3 ESS PL SHEET 1 OF 3 SITE 3 ESS PL SHEET 2 OF 3 SITE 3 ESS PL SHEET 3 OF 3 TYPIL SETIOS ESRIPTIO SITE 1 / 2 ESS ROUTE -106/ SITE ESIGE Y: SOLIITTIO.: W Y: K Y: OTRT.: SUMITTE Y: FILE UMER: PLOT SLE:PLOT SIZE: FILE ME: SI LLY_G-003-I.dgn SITE 1 SITE 1 ESS ROUTE QUTI EOSYSTEM RESTORTIO MOTGOMERY OUTY LITHFIEL, ILLIIS SHEET IEX SLE 1" = 500' SHEET IEX MP PLTE G-003

GEERL SHEET TES 1. ELEVTIOS RE I RTH MERI VERTIL TUM (..V.. 88) FLOW TE PPR.

STRUTURE SEE PLTE -301 FOR TYPIL SETIO 10' (TYP) 4+00 25

-301 FOR TYPIL SETIO 3+00 3-301 2+00 ROK ERM PL 1V:3H TYP.

1+00 0+00 10 LIER FEET OF RIPRP REVETMET UPSTREM OF

SETIO SOLIITTIO.: ESRIPTIO SLE 1" = 50' 0 50' 100' OTRT.

SIZE: FILE ME: SI LLY_-101.dgn 600 590 1V:10H TIE-I EL.

RESTORTIO MOTGOMERY OUTY LITHFIEL, ILLIIS SITE 1 PL

13 GEERL SHEET TES 1. ELEVTIOS RE I RTH MERI VERTIL TUM (..V.. 88) FLOW TE PPR LIER FEET OF RIPRP REVETMET UPSTREM OF STRUTURE SEE PLTE -301 FOR TYPIL SETIO 10' (TYP) LIER FEET OF RIPRP REVETMET OWSTREM OF STRUTURE SEE PLTE -301 FOR TYPIL SETIO ROK ERM PL 1V:3H TYP. 1V:3H TYP LIER FEET OF RIPRP REVETMET UPSTREM OF STRUTURE SEE PLTE -301 FOR TYPIL SETIO 25 LIER FEET OF RIPRP REVETMET OWSTREM OF STRUTURE SEE PLTE -301 FOR TYPIL SETIO SOLIITTIO.: ESRIPTIO SLE 1" = 50' 0 50' 100' OTRT.: FILE UMER: ESIGE Y: W Y: K Y: SUMITTE Y: PLOT SLE:PLOT SIZE: FILE ME: SI LLY_-101.dgn V:10H TIE-I EL. 596 TIE-I EL. 596 RML POOL EL 591 TOP OF ERM EL V:10H LKE E QUTI EOSYSTEM RESTORTIO MOTGOMERY OUTY LITHFIEL, ILLIIS SITE 1 PL PROFILE ROK ERM PROFILE 0 50' 100' HORIZ. SLE 1" = 50' VERT. SLE 1" = 10' ' 20' PLTE -101

14 GEERL SHEET TES 1. RIGHT OF WY FOR SITE 1 TEMPORRY ESS RO OUTSIE LKE PROPERTY LIMITS PPROXIMTELY 1.3 RES 2. UTILITY LOTIOS RE PPROXIMTE TE PPR. OSTRUTIO LIMITS LOTE WITHI LKE PROPERTY URIE ELETRI JUTIO OX (LOTIOS RE PPROXIMTE) 20' RIGHT OF WY FOR TEMPORRY ESS RO WITHI LKE PROPERTY LIMITS MIIML RUSH LERIG LOG SOUTH EGE OF RIGHT OF WY OVERHE ELETRI UTILITIES POLES (LOTIOS RE PPROXIMTE) 12' GRVEL RO MTH LIE SEE SHEET -103 SOLIITTIO.: OTRT.: FILE UMER: ESRIPTIO 0.1 RES OF TREE LERIG REQUIRE FOR ROK ERM REVETMET OSTRUTIO MIIML TREE LERIG FOR ROK ERM REVETMET OSTRUTIO OTRTOR STGIG RE ESIGE Y: W Y: K Y: SUMITTE Y: PLOT SLE:PLOT SIZE: FILE ME: SI LLY_-102.dgn QUTI EOSYSTEM RESTORTIO MOTGOMERY OUTY LITHFIEL, ILLIIS SITE 1 ESS PL SHEET 1 OF 3 ESS PL SLE 1" = 50' 0 50' 100' -13 PLTE -102

15 GEERL SHEET TES 1. RIGHT OF WY FOR SITE 1 TEMPORRY ESS RO OUTSIE LKE PROPERTY LIMITS PPROXIMTELY 1.3 RES 2. UTILITY LOTIOS RE PPROXIMTE TE PPR. MTH LIE SEE SHEET -102 PPROXIMTE LKE PROPERTY LIE 20' RIGHT OF WY FOR TEMPORRY ESS RO WITHI LKE PROPERTY LIMITS EXPE RIGHT OF WY FOR ULVERT SLOPES OF FILL (PPROXIMTE LOTIO) OVERHE ELETRI UTILITIES POLES (LOTIOS RE PPROXIMTE) MTH LIE SEE SHEET -104 ESIGE Y: W Y: K Y: SOLIITTIO.: SUMITTE Y: OTRT.: FILE UMER: PLOT SLE:PLOT SIZE: FILE ME: SI LLY_-103.dgn ESRIPTIO ULVERT TO E PLE I EXISTIG ITH FOR OSTRUTIO ESS RO SEE TYPIL SETIO O SHEET ' RIGHT OF WY FOR TEMPORRY ESS RO 12' GRVEL RO QUTI EOSYSTEM RESTORTIO MOTGOMERY OUTY LITHFIEL, ILLIIS SITE 1 ESS PL SHEET 2 OF 3 ESS PL SLE 1" = 50' 0 50' 100' -14 PLTE -103

16 GEERL SHEET TES 1. RIGHT OF WY FOR SITE 1 TEMPORRY ESS RO OUTSIE LKE PROPERTY LIMITS PPROXIMTELY 1.3 RES TE PPR. MTH LIE SEE SHEET -103 RIGHT OF WY TO FOLLOW EGE OF PRIVY LE PRIVY LE PPROXIMTE OUTY PROPERTY LIE OUTY RO 650 EST SOLIITTIO.: OTRT.: FILE UMER: ESRIPTIO ESIGE Y: W Y: K Y: SUMITTE Y: PLOT SLE:PLOT SIZE: FILE ME: SI LLY_-104.dgn 12' GRVEL RO QUTI EOSYSTEM RESTORTIO MOTGOMERY OUTY LITHFIEL, ILLIIS SITE 1 ESS PL SHEET 3 OF 3 20' RIGHT OF WY FOR TEMPORRY ESS RO ESS PL SLE 1" = 50' 0 50' 100' -15 PLTE -104

GEERL SHEET TES 1. LL ELEVTIOS RE I RTH MERI VERTIL TUM (..V.. 88) FLOW TE PPR.

FOR TYPIL SETIO 0+00 1+00 10' (TYP) 25 LIER FEET OF RIPRP REVETMET

OWSTREM OF STRUTURE SEE PLTE -301 FOR TYPIL SETIO SOLIITTIO.

: FILE UMER: ESIGE Y: W Y: K Y: SUMITTE Y: PLOT SLE:PLOT SIZE: FILE

17 GEERL SHEET TES 1. LL ELEVTIOS RE I RTH MERI VERTIL TUM (..V.. 88) FLOW TE PPR. 10 LIER FEET OF RIPRP REVETMET UPSTREM OF STRUTURE SEE PLTE -301 FOR TYPIL SETIO ' (TYP) 25 LIER FEET OF RIPRP REVETMET OWSTREM OF STRUTURE SEE PLTE -301 FOR TYPIL SETIO V:3H TYP. ROK ERM PL 1V:3H TYP LIER FEET OF RIPRP REVETMET UPSTREM OF STRUTURE SEE PLTE -301 FOR TYPIL SETIO 25 LIER FEET OF RIPRP REVETMET OWSTREM OF STRUTURE SEE PLTE -301 FOR TYPIL SETIO SOLIITTIO.: ESRIPTIO SLE 1" = 50' 0 50' 100' OTRT.: FILE UMER: ESIGE Y: W Y: K Y: SUMITTE Y: PLOT SLE:PLOT SIZE: FILE ME: SI LLY_-105.dgn 600 1V:10H TIE-I EL. 596 TIE-I EL. 596 RML POOL EL 591 TOP OF ERM EL V:10H LKE E QUTI EOSYSTEM RESTORTIO MOTGOMERY OUTY LITHFIEL, ILLIIS SITE 1 PL PROFILE ROK ERM PROFILE 0 50' 100' HORIZ. SLE 1" = 50' VERT. SLE 1" = 10' ' 20' PLTE -105

18 GEERL SHEET TES 1. RIGHT OF WY FOR SITE 1 TEMPORRY ESS RO OUTSIE LKE PROPERTY LIMITS PPROXIMTELY 1.5 RES TE PPR. MTH LIE SEE SHEET -107 ESRIPTIO RIGHT OF WY TO FOLLOW EGE OF EMETRY LE SOLIITTIO.: OTRT.: FILE UMER: ESIGE Y: W Y: K Y: SUMITTE Y: PLOT SLE:PLOT SIZE: FILE ME: SI LLY_-106.dgn PPROXIMTE OUTY PROPERTY LIE E 5TH R EMETRY LE QUTI EOSYSTEM RESTORTIO MOTGOMERY OUTY LITHFIEL, ILLIIS SITE 1 ESS PL SHEET 1 OF 2 ESS PL SLE 1" = 100' 0 100' 200' -17 PLTE -106

19 GEERL SHEET TES 1. RIGHT OF WY FOR SITE 1 TEMPORRY ESS RO OUTSIE LKE PROPERTY LIMITS PPROXIMTELY 1.5 RES 2. UTILITY LOTIOS RE PPROXIMTE TE PPR. ESRIPTIO MTH LIE SEE SHEET -106 RIGHT OF WY TO FOLLOW EGE OF EMETRY LE EMETRY LE PPROXIMTE LKE PROPERTY LIE RIGHT OF WY FOR TEMPORRY ESS WITHI LKE PROPERTY LIMITS OVERHE ELETRI (LOTIO PPROXIMTE) STGIG RE LOG EXISTIG PTH, LERIG T LLOWE MIIML TREE LERIG REQUIRE FOR ROK ERM REVETMET OSTRUTIO UERGROU ELETRI (LOTIO PPROXIMTE) 0.1 RES OF TREE LERIG REQUIRE FOR ROK ERM REVETMET OSTRUTIO ESIGE Y: QUTI EOSYSTEM RESTORTIO W Y: K Y: SOLIITTIO.: MOTGOMERY OUTY LITHFIEL, ILLIIS SUMITTE Y: OTRT.: FILE UMER: PLOT SLE:PLOT SITE 1 ESS PL SIZE: FILE ME: SHEET 2 OF 2 SI LLY_-107.dgn ESS PL SLE 1" = 100' 0 100' 200' -18 PLTE -107

20 GEERL SHEET TES 1. RIGHT OF WY FOR SITE 2 TEMPORRY ESS RO OUTSIE LKE PROPERTY LIMITS PPROXIMTELY 1.5 RES TE PPR. MTH LIE SEE SHEET -110 ESRIPTIO RIGHT OF WY TO FOLLOW EGE OF EMETRY LE SOLIITTIO.: OTRT.: FILE UMER: ESIGE Y: W Y: K Y: SUMITTE Y: PLOT SLE:PLOT SIZE: FILE ME: SI LLY_-109.dgn PPROXIMTE OUTY PROPERTY LIE E 5TH R EMETRY LE QUTI EOSYSTEM RESTORTIO MOTGOMERY OUTY LITHFIEL, ILLIIS SITE 2 ESS PL SHEET 1 OF 2 ESS PL SLE 1" = 100' 0 100' 200' -19 PLTE -109

21 GEERL SHEET TES 1. RIGHT OF WY FOR SITE 2 TEMPORRY ESS RO OUTSIE LKE PROPERTY LIMITS PPROXIMTELY 1.5 RES 2. UTILITY LOTIOS RE PPROXIMTE TE PPR. 0.1 RES OF TREE LERIG REQUIRE FOR ROK ERM REVETMET OSTRUTIO ESRIPTIO MTH LIE SEE SHEET -109 RIGHT OF WY TO FOLLOW EGE OF EMETRY LE EMETRY LE PPROXIMTE LKE PROPERTY LIE RIGHT OF WY FOR TEMPORRY ESS WITHI LKE PROPERTY LIMITS MIIML TREE LERIG REQUIRE FOR ROK ERM REVETMET OSTRUTIO STGIG RE LOG EXISTIG PTH, LERIG T LLOWE OVERHE ELETRI (LOTIO PPROXIMTE) UERGROU ELETRI (LOTIO PPROXIMTE) ESIGE Y: QUTI EOSYSTEM RESTORTIO W Y: K Y: SOLIITTIO.: MOTGOMERY OUTY LITHFIEL, ILLIIS SUMITTE Y: OTRT.: FILE UMER: PLOT SLE:PLOT SITE 2 ESS PL SIZE: FILE ME: SHEET 2 OF 2 SI LLY_-110.dgn ESS PL SLE 1" = 100' 0 100' 200' -20 PLTE -110

22 GEERL SHEET TES 1. RIGHT OF WY FOR SITE 3 TEMPORRY ESS RO OUTSIE LKE PROPERTY LIMITS PPROXIMTELY 1.4 RES TE PPR. EXISTIG VEHILE PTH TO E IMPROVE FOR OSTRUTIO ESS RIGHT OF WY FOR TEMPORRY ESS WITHI LKE PROPERTY LIMITS MTH LIE SEE SHEET -113 SOLIITTIO.: ESRIPTIO OTRT.: FILE UMER: 0.1 RES OF TREE LERIG REQUIRE FOR ROK ERM REVETMET OSTRUTIO ESIGE Y: W Y: K Y: SUMITTE Y: PLOT SLE:PLOT SIZE: FILE ME: SI LLY_-112.dgn MIIML TREE LERIG FOR OTRTOR STGIG ROK ERM REVETMET OSTRUTIO PPROXIMTE LKE PROPERTY LIE QUTI EOSYSTEM RESTORTIO MOTGOMERY OUTY LITHFIEL, ILLIIS SITE 3 ESS PL SHEET 1 OF 3 ESS PL SLE 1" = 50' 0 50' 100' -21 PLTE -112

23 GEERL SHEET TES 1 1. RIGHT OF WY FOR SITE 3 TEMPORRY ESS RO OUTSIE LKE PROPERTY LIMITS PPROXIMTELY 1.4 RES 18TH VE TE PPR. RIGHT OF WY TO FOLLOW EGE OF 18TH VE MTH LIE SEE SHEET -114 SOLIITTIO.: ESRIPTIO OTRT.: FILE UMER: ESIGE Y: W Y: K Y: SUMITTE Y: PLOT SLE:PLOT SIZE: FILE ME: SI LLY_-113.dgn MTH LIE SEE SHEET -112 RIGHT OF WY TO FOLLOW EGE OF EXISTIG PTH EXISTIG VEHILE PTH TO E IMPROVE FOR OSTRUTIO ESS QUTI EOSYSTEM RESTORTIO MOTGOMERY OUTY LITHFIEL, ILLIIS SITE 3 ESS PL SHEET 2 OF 3-22 SLE 1" = 50' ESS PL 0 50' 100' PLTE -113

24 GEERL SHEET TES 1. RIGHT OF WY FOR SITE 3 TEMPORRY ESS RO OUTSIE LKE PROPERTY LIMITS PPROXIMTELY 1.4 RES TE PPR. 18TH VE RIGHT OF WY TO FOLLOW EGE OF 18TH VE PPROXIMTE OUTY PROPERTY LIE SOLIITTIO.: ESRIPTIO OTRT.: FILE UMER: MTH LIE SEE SHEET -113 ESIGE Y: W Y: K Y: SUMITTE Y: PLOT SLE:PLOT SIZE: FILE ME: SI LLY_-114.dgn QUTI EOSYSTEM RESTORTIO MOTGOMERY OUTY LITHFIEL, ILLIIS SITE 3 ESS PL SHEET 3 OF 3 ESS PL SLE 1" = 50' 0 50' 100' -23 PLTE -114

25 GEERL SHEET TES 1V:1.5H 2% 9" RUSHE STOE 2% 1. ELEVTIOS RE I RTH MERI VERTIL TUM (..V.. 88) TE PPR ' MI PIPE OVER -WOVE GEOTEXTILE ESS RO TYPIL SETIO 3 SLE TS RML POOL EL 591 1V:3H 10' EL V:3H FLOW ESRIPTIO 48" ULVERT SSUME EXISTIG GRE LKE E SOLIITTIO.: OTRT.: FILE UMER: ESS RO ITH ROSSIG 3 SLE TS HORIZ. SLE 1" = 10' ROK ERM SETIO VERT. SLE 1" = 5' 0 5' 10' 10' 20' 0 ESIGE Y: W Y: K Y: SUMITTE Y: PLOT SLE:PLOT SIZE: FILE ME: SI LLY_-301.dgn EXISTIG GRE EL 596 1V:3H 30" RIPRP 5' 1V:2H EXISTIG GRE 1V:2H 5' 30" RIPRP 1V:3H EL " EIG MTERIL EXVTIO LIE WEST K REVETMET EL 588 SLE 1" = 10' 0 10' 20' EL EST K REVETMET SLE 1" = 10' 0 10' 20' EXVTIO LIE 6" EIG MTERIL QUTI EOSYSTEM RESTORTIO MOTGOMERY OUTY LITHFIEL, ILLIIS TYPIL SETIOS PLTE

A B C D E F G H EXCAVATE AS NEEDED TO CONSTRUCT NEW EMBANKMENT POTENTIAL BORROW PRISM, NOT MEASURED FOR PAYMENT FLAT POOL EL. 183.

A B C D E F G H EXCAVATE AS NEEDED TO CONSTRUCT NEW EMBANKMENT POTENTIAL BORROW PRISM, NOT MEASURED FOR PAYMENT FLAT POOL EL. 183. 8 7 EMNKMENT PLE 0. M EING N 0. M KG RIPRP EL. 8. -7 MIN. SEE 7-0 EXVTE S NEEE TO ONSTRUT NEW EMNKMENT NEW UNOMPTE ERTH EMNKMENT - 0 MIN POTENTIL ORROW PRISM, NOT MESURE FOR PYMENT EMNKMENT FLT POOL EL.