707-190_Raw_Water_Intake_Package_07-20-2026.pdf

PDF 406 KB Posted Jul 30, 2026

Attached to: Inlet Structure & Doors at TWRAs Lillards MILL
Solicitation number: Event 32801-13964
Issued by: Marion County, Tennessee

About this file

Written by GovTribe AI · Aug 4, 2026

This is a technical design document—specifically Sheet 5 of an intake structure details drawing—for a raw water intake package project (Project No. 707-190) developed by Griggs & Maloney, Inc. for the Tennessee Wildlife Resources Agency (TWRA) at Lillard's Mill Access Area in Marshall County, Tennessee. The project involves the design and installation of a raw water intake structure with associated pumping and filtration systems. Key components include a 72-inch precast inlet structure with a 48-square-inch opening, two Flygt NP3127 submersible pumps (80 GPM and 35 GPM capacity), a stainless steel wedge wire screen (44 inches wide by 56 inches tall), a Fontaine Model S-22 slide gate (3 feet wide by 4 feet high), and various appurtenances including check valves, gate valves, vent lines, and control systems. The structure incorporates mechanical connections with stainless steel hardware, neoprene gaskets, and reinforced precast concrete components meeting ACI 318 specifications with a minimum strength of 4,000 psi. The document specifies that the contractor must accept and install owner-supplied equipment including precast structures, pumps, pump controller, hatches, slide gates, and screens, while providing all necessary appurtenances to complete the work. The total dynamic head requirement is 114 feet for the primary pump and 69 feet for the secondary pump, with a 2-inch force main extending 527 feet to a discharge elevation of 665 feet.

The design document requires that all shop drawings for precast structures and connections be stamped by a registered professional engineer in Tennessee for use as an intake structure in a riverine environment. The inlet structure is classified as a confined space under OSHA regulations. The pump system operates at 230 volts, three-phase, 60 hertz power supply with variable frequency drive capability for phase conversion from single-phase power. The contractor is responsible for coordinating and providing startup of the pump system with the pump supplier, installing power and control conduit and wiring to the intake location, and ensuring the basin bottom has a smooth troweled surface for proper equipment placement. All concrete connections must comply with specified standards, including butyl mastic application at connections and joints, and stainless steel (316L and 304) hardware must be used throughout to withstand the riverine environment. The document was submitted to TWRA as the final review set on June 16, 2026, and was last saved and plotted on June 18, 2026.

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Other files

File	Type	Posted
Duck_River_sketch.pdf	PDF	Jul 30, 2026
Terms_Conditions.pdf	PDF	Jul 30, 2026
SPECS_FOR_INTAKE_STRUCTURE_VAULT_ACCESS_DOOR.pdf	PDF	Jul 30, 2026
LILLARD_S_MILL_INTAKE_SX_VAULT_DOOR.pdf	PDF	Jul 30, 2026
INLET_STRUCTURE_DOORS_AT_TWRAs_LILLARDs_MILL.pdf	PDF	Jul 30, 2026
707-190_Raw_Water_Intake_Package.pdf	PDF	Jul 30, 2026

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SUBMITTALS & REVISIONS

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P.O. BOX 2968, MURFREESBORO, TN 37133-2968

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(615) 895-8221 * FAX (615) 895-0632

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NO.

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DATE

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DESCRIPTION

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APPROVED BY:

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CHECKED BY:

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DRAWN BY:

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SHEET NO. 5

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PROJECT NO. 707-190

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JUNE

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AS NOTED

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SCALE:

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DATE:

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DSM

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RWM

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RWM

AutoCAD SHX Text C 2025 Griggs & Maloney, Inc.

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INTAKE STRUCTURE DETAILS

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FLOAT MTG. BRACKET

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2" S.S. CHECK VALVE

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2" S.S GATE VALVE

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2" S.S. CROSS

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2" FORCE MAIN

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2" S.S. ELBOW

AutoCAD SHX Text NOTE: BOTTOM OF BASIN MUST HAVE SMOOTH TROWELED SURFACE FOR PLACEMENT OF PRECAST STRUCTURE.

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JUNCTION BOX, SEE ELECTRICAL

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TOP OF SLAB EL. 615.0

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ALUMINUM BASIN HATCH W/HINGED ACCESS DOOR SEE DETAIL THIS SHT.

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TOP RAIL SUPPORT (BOLTS TO COVER FRAME)

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HINGED ACCESS DOOR (ALUMINUM) SEE DETAIL THIS SHT.

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SS LIFTING CHAIN

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%%U PLAN VIEW

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%%U SECTION

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#7 @ 12" O.C.E.W. TOP AND BOTTOM

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1/4" NEOPRENE GASKET, 3" WIDE X 1'-3" LONG, BETWEEN PLATE AND WALL

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OUTSIDE WALL OF WETWELL

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PLATE: 3/8" THICK, 1'-2" WIDE, CONTINUOUS, EACH SIDE WITH 12" CONNECTION SPACING

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WETWELL BASE OR LOWER SECTION

AutoCAD SHX Text %%uDETAIL TO MECHANICALLY

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%%UIF MORE THAN ONE SECTION IS USED

AutoCAD SHX Text %%uCONNECT WETWELL SECTIONS

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COAT ALL NUTS AND HOLES WITH SILICONE CAULK

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GASKET

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CORE 11/16" DIA. HOLE TO RECEIVE BOLT

AutoCAD SHX Text 5/8" STAINLESS STEEL BOLT WITH 2 NUTS, STAINLESS STEEL FLAT WASHER AND 1/4" NEOPRENE GASKET UNDER WASHERS

AutoCAD SHX Text NOTES: 1. ALL CONCRETE TO COMPLY WITH ACI 318 WITH A MINIMUM STRENGTH OF 4,000 psi AT 28 DAY TEST. 2. ALL PRECAST RISERS AND TOPS TO CONFORM TO ASTM C478. 3. MANHOLE STEPS TO BE NEENAH R-1982-W PROVIDE WITHIN 12" OF TOP, 16" O.C. 4. IF INLET STRUCTURE IS CONSTRUCTED OF MORE THAN ONE SECTION, THEN EACH SECTION SHALL BE MECHANICALLY CONNECTED TO THE LOWER SECTION AND/OR THE BASE. SEE DETAIL THIS SHEET. 5. INLET STRUCTURE IS CLASSIFIED AS "CONFINED SPACE" BY OSHA. 6. CONTROL PANEL TO BE PROVIDED BY PUMP PROVIDER INSTALLED AS SHOWN. CONTRACTOR TO INSTALL POWER AND CONTROL CONDUIT AND WIRE TO INTAKE LOCATION. PUMP VENDOR TO SUPPLY PUMPS, CONTROL PANEL, VFD, FLOATS, GUIDE RAILS, LIFTING CHAIN, BASE ELBOW, FLOAT MOUNTING BRACKET, AND CABLE HOLDER. 7. SHOP DRAWINGS PER PRECAST STRUCTURE AND ALL CONNECTIONS, INCLUDING CONNECTION TO BASE SLAB, SHALL BE STAMPED BY A REGISTERED PROFESSIONAL ENGINEER IN THE STATE OF TENNESSEE FOR THE APPLIED USE AS AN INTAKE STRUCTURE SUBJECTED TO A RIVERINE ENVIRONMENT. 8. OWNER WILL SUPPLY PRECAST STRUCTURES, PUMPS, PUMP CONTROLLER, HATCHES,SLIDE GATE, AND SCREEN. CONTRACTOR SHALL ACCEPT AND INSTALL OWNER SUPPLIED EQUIPMENT AND PROVIDE ANY AND ALL APPURTENANCES TO COMPLETE THE WORK.

AutoCAD SHX Text 5"

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2" ELBOW, 2" TEE, VALVE AND CAM-LOK FITTING, SEE SECTION BELOW

AutoCAD SHX Text PRECAST CLOUD (OR EQUAL) OR 12" BASE, 6" WALLS AND TOP SLAB ALL REINFORCED WITH #4 @ 12" O.C.E.W.

AutoCAD SHX Text N.T.S.

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%%U BRACKET DETAIL

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12" PVC DROP PIPE

AutoCAD SHX Text 3/16" X 1 1/2" GALV. STRAPS W/ 1/2" GALV. BOLT ANDEXPANSION ANCHORS. STRAPS TOP AND BOTTOM, 2" MIN. SPACING.

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1 1/2" X 1/2" GALVANIZEDBOLT AND NUT.

AutoCAD SHX Text 4" X 4" X 6" HARDWOOD BLOCKING CUT TO CONTOUR OF MANHOLE AND PIPE FOR BELL CLEARANCE.

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2" SS VENT WITH INSECT SCREEN

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SCALE: 1/2" = 1'-0"

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%%UINTAKE STRUCTURE, PUMPS & VALVE BOX

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PUMP STATION ID

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RAW WATER INTAKE

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DISCHARGE PIPING TABLE

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DISCHARGE ELBOW

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FLASHING RED ALARM LIGHT

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WEATHERPROOF CONTROL BOX, SEE NOTE 6.

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POWER SUPPLY CONDUIT FROM SERVICE POLE, SEE NOTE 6

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CORD SEAL CONNECTORS FOR POWER AND CONTROL CORDS (NOT SHOWN)

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CONCRETE BASE SLAB.

AutoCAD SHX Text L:\Engineering\707 TWRA\707-190 Lillard Mill\DRAWINGS\RAW WATER INTAKE\Drawings submitted to TWRA - Final Review Set\707-190 Sht 5 Intake Structure Details 6-16-26.dwg LAYOUT: MODEL SAVED: 6/17/2026 2:48 PM PAGESETUP: ---- PLOTTED: 6/18/2026 LAYOUT: MODEL SAVED: 6/17/2026 2:48 PM PAGESETUP: ---- PLOTTED: 6/18/2026 MODEL SAVED: 6/17/2026 2:48 PM PAGESETUP: ---- PLOTTED: 6/18/2026 SAVED: 6/17/2026 2:48 PM PAGESETUP: ---- PLOTTED: 6/18/2026 6/17/2026 2:48 PM PAGESETUP: ---- PLOTTED: 6/18/2026 PAGESETUP: ---- PLOTTED: 6/18/2026 ---- PLOTTED: 6/18/2026 PLOTTED: 6/18/2026 6/18/2026

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72" PRECAST INLET STRUCTURE

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48" SQ.

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3'-0" HATCH OPENING

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3'-0" HATCH OPENING

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3'-0" HATCH OPENING

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2'-6" HATCH OPENING

AutoCAD SHX Text 8"

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36" OPENING

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%%UCONTROLS DETAIL

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NOTE: CONTROLS TO BE MOUNTED NEAR HATCHERY BUILDING

AutoCAD SHX Text 8"

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BEDROCK

AutoCAD SHX Text DRILL AND EPOXY #7 REBAR @ 2' O.C. EACH WAY INTO BEDROCK AND TIE TO BASE SLAB REBAR

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SUPPORT SHELF DEPTH

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VARIES WITH SIZE

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%%UBILCO TYPE J-3ALH20 ACCESS DOOR

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CONTINUOUS EPDM DEBRIS GASKET

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LOCK STRIKE

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REMOVABLE ANCHOR

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1-1/2" DRAIN COUPLING TO INSIDE MANHOLE

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STAINLESS STEEL SLAM LOCK

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AUTOMATIC HOLD OPEN ARM AND COVER RELEASE

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REMOVABLE SQUARE KEY WRENCH W/DETENT

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REMOVABLE PLUG

AutoCAD SHX Text 1/4" (6.35mm) DIAMOND PLATE COVER

AutoCAD SHX Text 1/4" (6.35mm) CHANNEL FRAME EXTRUDED ALUMINUM

AutoCAD SHX Text 3 1/2"

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FORGED ALUMINUM HINGES STAINLESS STEEL PINS

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NEOPRENE BUMPER

AutoCAD SHX Text LIFTING MECHANISM WITH REINFORCED COMPOSITE TUBES AND ELECTRCOATED COMPRESSION SPRINGS

AutoCAD SHX Text 2'-6"

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AutoCAD SHX Text 11 11/16"

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RIVERBED EL. ±603.33

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EL. ±602.33

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GROUT TYPICAL ALL CORNERS

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48" OPENING

AutoCAD SHX Text 44" WIDE X 56" TALL S.S. WEDGE WIRE SCREEN W/ FRAME EXTERNALLY MOUNTED TO PRECAST STRUCTURE

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EL. ±603.83

AutoCAD SHX Text 6" X 6" X 3/8" ANGLE IRON WITH 5/8" STAINLESS STEEL ANCHOR BOLTS AND 1" SS WASHER INTO BASE SLAB AND PRECAST STRUCTURE EVERY 12" O.C., 3" MINIMUM AWAY FROM EDGES. COORDINATE 3/4" DIAMETER HOLE LOCATIONS WITH PRECASTER. THROUGH BOLT ANCHORS TO PRECAST STRUCTURE.

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3' WIDE X 4'HIGH SLIDE GATE TO BE FONTAINE MODEL S-22

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18" MIN. BELOW GROUND SURFACE

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2" DRAIN PORTSW/ GRATES

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2" THREADED CAM-LOK FITTING WITH PROTECTIVE CAP

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2" UNION, TYP.

AutoCAD SHX Text 3' WIDE X 4'HIGH SLIDE GATE TO BE FONTAINE MODEL S-22, COORDINATE INTERIOR MOUNTING WITH PRECASTER

AutoCAD SHX Text 3 1/8"

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EPDM

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WALL GASKET

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EPDM

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COMPRESSION

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CORD

AutoCAD SHX Text S.S. 316L

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SLIDE

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1/4" THICK

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UHMWPE

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SIDE SEAL

AutoCAD SHX Text S.S. 316L

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FRAME

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1/4" THICK

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SIDE SEAL CROSS SECTION

AutoCAD SHX Text 3 1/8"

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EPDM

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WALL GASKET

AutoCAD SHX Text S.S. 316L

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SLIDE

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1/4" THICK

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EPDM

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BOTTOM SEAL

AutoCAD SHX Text S.S. 316L

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FRAME

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1/4" THICK

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BOTTOM SEAL CROSS SECTION

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EPDM

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WALL GASKET

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EPDM

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COMPRESSION

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CORD

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SLIDE

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1/4" THICK

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UHMWPE

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TOP SEAL

AutoCAD SHX Text S.S. 316L

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FRAME

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1/4" THICK

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TOP SEAL CROSS SECTION

AutoCAD SHX Text NOTE A : ANCHORS SS 316 TO BE SUPPLIED BY CONTRACTOR. MECHANICAL: HILTI KWIK BOLT 3 OR BETTER, 1/2'' [13mm] DIA.X 3.5'' [89mm] EMBEDMENT IN 2000 PSI [14 Mpa] CONCRETE. ADHESIVE: HILTI HVA OR BETTER, 1/2'' [13mm] DIA.X 4.25'' [110mm] EMBEDMENT IN 2000 PSI [14 Mpa] CONCRETE. QTY: 28

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STEM EXTENSION PIPE S.S. 316L

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THRUST BEARING ASS'Y

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THRUST NUT BRONZE

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FRAME EXTENSIONS S.S. 316L

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YOKE S.S. 316L

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4"MIN

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5" OF STEM

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SECTION A-A

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AutoCAD SHX Text 1'-4 "14"

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AutoCAD SHX Text General Notes 1. Drawing is not to scale 2. Design pressure: 6.00 m seating and unseating 3. Gates are fully compliant to AWWA C561-14

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T-WRENCH (1 SUPPLIED)

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NOTE A

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GATE S.S. 316L

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STEM

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STEM GUIDE S.S. 316L & BUSHINGS UHMWPE QUANTITY 2 SEE NOTE A

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4'-0" CONCRETE OPENING

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INV. EL. ±603.83

AutoCAD SHX Text 8'-11 "14"

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OPERATING SQUARE NUT ALUMINUM

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%%USTAINLESS STEEL SLIDE GATE - SERIES 20

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OPERATING SQUARE NUT ALUMINUM

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TENNESSEE WILDLIFE RESOURCES AGENCY

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LILLARD'S MILL ACCESS AREA

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MARSHALL COUNTY, TENNESSEE

AutoCAD SHX Text 44" WIDE X 56" TALL S.S. WEDGE WIRE SCREEN W/ GUIDE RAILS/FRAME EXTERNALLY MOUNTED TO PRECAST STRUCTURE, COORDINATE MOUNTING WITH PRECASTER

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AutoCAD SHX Text 3'-8"

AutoCAD SHX Text 6 "12"

AutoCAD SHX Text 2'-0"

AutoCAD SHX Text 6 "12"

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FLYGHT PUMP NP 3127 (2) SEE NOTE 8

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FLYGHT PUMP NP 3127 (2)

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2" SS VENT WITH INSECT SCREEN

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MIN. DISTANCE REQUIRED FROM GATE INVERT TO OPERATING FLOOR IS 128.93 INCHES

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128.93" DISTANCE REQ'D

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2" ELBOW, 2" TEE AND VALVE

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2" FORCE MAIN

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PUMP OFF

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EL. 604.33

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AutoCAD SHX Text PRECAST CLOUD (OR EQUAL) OR 12" BASE, 6" WALLS AND TOP SLAB ALL REINFORCED WITH #4 @ 12" O.C.E.W.

AutoCAD SHX Text NOTE: BOTTOM OF BASIN MUST HAVE SMOOTH TROWELED SURFACE FOR MTG. SUPPORT CASTING.

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%%U SECTION

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#7 @ 12" O.C.E.W. TOP AND BOTTOM

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SCALE: 1/2" = 1'-0"

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%%UINTAKE STRUCTURE, SLAB

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12" MIN.

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BEDROCK

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DRILL AND EPOXY #7 REBAR @ 2' O.C. INTO BEDROCK AND TIE TO BASE REBAR

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RIVERBED EL. ±603.33

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EL. ±602.33

AutoCAD SHX Text 6" X 6" X 3/8" 304 S.S. ANGLE IRON WITH 5/8" STAINLESS STEEL ANCHOR BOLTS AND 1" SS WASHER INTO BASE SLAB AND PRECAST STRUCTURE EVERY 12" O.C., 3" MINIMUM AWAY FROM EDGES. COORDINATE 3/4" DIAMETER HOLE LOCATIONS WITH PRECASTER. THROUGH BOLT ANCHORS TO PRECAST STRUCTURE.

AutoCAD SHX Text 6"x6"x3/8" 304 S.S. ANGLE

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APPLY BUTYL MASTIC AT CONNECTIONS AND JOINTS

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AutoCAD SHX Text 10" X 10" X 1/8" PRIMED AND PAINTED STEEL PLATE COVER. SECURE WITH 4 TAPCON SCREWS. PLACE SILICON BEAD AROUND EDGES.

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CAST CONCRETE

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STRUCTURE SECTION PLATE CONNECTIONS ALL SIDES. COORDINATE WITH PRECASTER

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3/8" 304 S.S. WITH 5/8" S.S. STEEL BOLTS AND WASHER WITH LOCK RINGS.

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6" STEEL CASING THROUGH GABIONS AND STONE SEALED WITH FERNCO COUPLING

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6" STEEL CASING THROUGH GABIONS AND STONE SEALED WITH FERNCO COUPLING

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3" X 2" REDUCER

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3" X 2" REDUCER, TYP.

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6" STEEL CASING THROUGH GABIONS AND STONE SEALED WITH FERNCO COUPLING

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6" STEELSLEEVE

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LID TO RISERS PRECAST BOLTED CONNECTIONS

AutoCAD SHX Text NOTE: COORDINATE PRECAST TO CAST-IN-PLACE SLAB CONNECTION WITH PRECASTER, SEE NOTE 7.

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INSIDE WALL OF WETWELL

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3" CLR., TYP.

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3" CLR., TYP.

AutoCAD SHX Text 10'-0"

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8" MIN. EMBEDMENT

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DUPLEX PUMP STATION SCHEDULE

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PUMP DESIGN FLOW, Q (GPM)

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Q = 80 GPM Q = 35 GPM

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AutoCAD SHX Text FORCEMAIN LENGTH (ft.)

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AutoCAD SHX Text FORCEMAIN DIAMETER (inches)

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FORCEMAIN DISCHARGE ELEVATION

AutoCAD SHX Text ±665

AutoCAD SHX Text TOTAL DYNAMIC HEAD (ft.)

AutoCAD SHX Text 114 (Q ) 69 (Q )

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PUMP MODEL #

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FLYGT NP3127 SH3 ~ APAPTIVE 249 146 MM IMPELLER

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POWER (VOLTAGE, PHASE, FREQUENCY)

AutoCAD SHX Text 230, 3, 60

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NOTES

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1. PROVIDE VARIABLE FREQUENCY DRIVE PROVIDE VARIABLE FREQUENCY DRIVE FOR PHASE CONVERTER FOR SINGLE PHASE POWER SUPPLY. 2. CONTRACTOR TO COORDINATE AND CONTRACTOR TO COORDINATE AND PROVIDE STARTUP OF PUMP SYSTEM WITH PUMP SUPPLIER.

AutoCAD SHX Text 6/16/26

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SUBMITTED TO TWRA - FINAL REVIEW SET

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RWM

BH01634

Sticky Note

707-190 Sht 0 Cover Sheet 6-16-26

Sheets and Views

Model

707-190 Sht 1 Existing Conditions 6-16-26

Sheets and Views

Model

707-190 Sht 2 Erosion Control Plan 6-16-26

Sheets and Views

Model

707-190 Sht 3 Site Plan 6-16-26

Sheets and Views

Model

707-190 Sht 4 River Bank & Structure Intake and Section 6-16-26

Sheets and Views

Model

707-190 Sht 5 Intake Structure Details 6-16-26

Sheets and Views

Model

707-190 Sht 6 Erosion Control Details 6-16-26

Sheets and Views

Model

30925_Elect

File details come from the government source that posted it. Updated Aug 4, 2026.