MER-FF-097_Plans_Final1.pdf

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®of Engineers

US Army Corps

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FINAL

CONCRETE DEMOLITION AND SHOTCRETE REPAIR STA.11+07.78 TO STA.16+10.5+

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A .5

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EL. 345.0

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EL. 307+

EL. 300.0

EL. 295.0

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TOP OF WALL SLOPES UNIFORMLY

FROM EL. 335.0 @ STA. 11+97.78

TO EL. 337.0 @ STA. 15+83

CONST. JTS. (TYP.)

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EL. 335.0

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FLOW

NORMAL

WATER

SURFACE

EL. 307+

TOP OF WALL

EL. 337.0

LIMIT OF CONCRETE DEMOLITION

AND SHOTCRETE REPAIR

STA.11+07.78 TO STA.16+10.05

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A .7

CHANNEL FLOOR EL. 300.0

VERTICAL EXP. JOINTS

(TYP)

(SEE DETAIL B5)

EXISTING FENCE BONDING

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EL. 312

EL. 304.5

EL. 327.0

EL. 319.5

EXPANSION

JTS. (TYP.)

EXISTING WEEPHOLES

TILE GAGE

SHOWN WITHOUT HATCH

BASE CONTRACT AREA

WITHOUT HATCH

AREA SHOWN

BASE CONTRACT

DOWN TO EL. 312

3" CONCRETE REMOVAL

HEAVED AREAS

DELAMINATED/

ELEVATION

REFERENCE

RAILING

EXISTING

SPALLED AREAS

DEPTH

EMBEDMENT

UNKNOWN

FILL WITH GROUT

OF DEMOLITION AND

CUT PIPE AT BASE

DEPTH

DEMOLITION

MINIMUM

SHOWN FOR CLARITY

GATE AND FENCE NOT

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CONTROL TOWER

INLET WALL

SYSTEM DOWN CONDUCTOR

EXISTING LIGHTNING PROTECTION

SEE NOTE 2

(SEE NOTE 3)

REPLACE EXISTING CONDUIT

WITH ANSI C2.

RAILING IN ACCORDANCE

BOND NEW CONDUCTOR TO

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SCALE: 1" = 20' 20' 40'0

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EAST INLET WALL (STA. 11+07.78 TO STA. 16+10.5±)

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B1

SCALE: 1" = 1'

COMPLETE SURFACE DEMOLITION ABOVE EL. 312

0 1' 2'6"

B5

SCALE: 1/2" = 1'

BONDING AND CONDUIT REPLACEMENT

0 2' 4'1'

GENERAL NOTES

LIGHTNING PROTECTION NOTES

TO UL96 AND NFPA 780.

4. PROVIDE ALL REQUIRED DOWN CONDUCTOR CLIPS, CONNECTORS, ETC. THAT CONFORM

APPROPRIATE SIZE AND ATTACHMENT METHOD FOR THE STRUCTURE

3. NEW CONDUIT SHALL BE SCHEDULE 80 PVC. PROVIDE MOUNTING CLIPS OF THE

2. NEW DOWN CONDUCTOR SHALL MATCH EXISTING IN MATERIAL, SIZE, AND CONSTRUCTION

FOR THE TYPE OF CONDUCTOR BEING USED.

CONDUIT. SPLICE NEW CONDUCTOR TO EXISTING USING APPROPRIATE SPLICE METHOD

1. CUT EXISTING LIGHTNING PROTECTION SYSTEM DOWN CONDUCTOR 24" ABOVE EXISTING

DURING CONSTRUCTION.

9. CONTRACTOR SHALL PROTECT EXISTING WEEPHOLES FROM DAMAGE OR CLOGGING

6 FEET ON CENTER. EXISTING RAILING RUNS FROM STA. 11+98 TO STA. 16+01.

GALVANIZED STEEL PIPE WITH TWO RAILS AND POSTS SPACED AT APPROXIMATELY

8. EXISTING RAILING IS APPROXIMATELY 3.5 FEET TALL AND CONSTRUCTED OF

BEYOND THE TRASH RACKS AS SHOWN

7. CONCRETE DEMOLITION AND SHOTCRETE REPAIRS SHALL NOT EXTEND DOWNSTREAM

WHERE THE MAXIMUM DEPTH IS EXTENDED TO 8"

REFERENCE ELEVATION, EXCEPT FOR AREAS WITHIN 6" OF A VERTICAL JOINT

6. MAXIMUM DEPTH FOR SHOTCRETE REMOVAL AFTER INITIAL DEMOLITION IS 5" FROM

ENGINEER HAVE INSPECTED ALL CONCRETE REMOVAL WORK.

AREAS. CONTRACTOR SHALL NOT BEGIN SHOTCRETE WORK UNTIL COR AND DESIGN

LOCATIONS AND NEED FOR ADDITIONAL REMOVAL PRIOR TO DEMOLITION OF MARKED

AREAS REQUIRING DEEPER REMOVAL. COR AND DESIGN ENGINEER SHALL VERIFY

ORIGINAL CONSTRUCTION WALL SURFACE PROFILE AND THEN SOUND AND MARK ANY

5. CONTRACTOR SHALL REMOVE ALL CONCRETE TO A 3" DEPTH RELATIVE TO THE

DESIGN SLOPE PRIOR TO COMMENCING DEMOLITION

4. CONTRACTOR SHALL SET REFERENCE ELEVATION OF INLET WALL MATCHING ORIGINAL

AND SHOTCRETE REBOUND FROM ENTERING THE WATERWAY

3. CONTRACTOR SHALL PREVENT ALL DEMOLITION DEBRIS, CONSTRUCTION MATERIALS,

2. DEMOLITION AND SHOTCRETE SHALL BE LIMITED TO THE AREA ABOVE EL. 312

THE TILES DURING DEMOLITION AND SHOTCRETE WORK

1. CONTRACTOR SHALL SAW CUT AROUND EDGE OF TILE GAUGE AND AVOID DAMAGING

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FINAL

'-0

3"

REPAIR

SHOTCRETE

EMBEDMENT

4" MIN

2' CC. EACH WAY

#3 BENT BARS (3" LEG)

4' CC. LONG DIRECTION

2' CC. SHORT DIRECTION

#3 BENT BARS (3" LEG)

EXISTING

CONCRETE

DOWN TO EL 312

CONTINUE REPAIR

DEMOLITION

SURFACE OF

WELDED WIRE FABRIC

6X6 W2.0XW2.0

WELDED WIRE FABRIC

6X6 W2.0XW2.0

1 1 /2"

COVER

UPWARS

BENT LEG ORIENTED

NEW RAILING 7"

6" 6"

4" MIN EMBEDMENT

(3" LEG) 2' CC.

#3 BENT BARS

DEPTH

DEMOLITION

MAXIMUM

EXST. CONCRETE

SHOTCRETE REPAIR

7"

6" 6"

WITH EPOXY GROUT

WATER STOP ATTACHED

4" MIN EMBEDMENT

(3" LEG) 18" CC.

#3 BENT BARS

DEPTH

DEMOLITION

EXST. CONCRETE

SHOTCRETE REPAIR

2" MESH CHAIN LINK

VINYL COATED

45°

2"

RESTORE JOINT

1/8" SAW CUT TO

HORIZONTAL JOINT

45°

RESTORE JOINT

1/8" SAW CUT TO

3"

VERTICAL JOINT

CHAMFER

HAND TOOLED

CHAMFER

HAND TOOLED

OR APPROVED EQUAL

HILTI HIT HY-10 PLUS EPOXY

STEEL PLATE

1/2" GALVANIZED

WITH BOLT AND WASHER

1/2" THREADED ROD

2-7/8" O.D. (TYP)

1" 1"

7"

1"1"

5/8 "

2 7/8 "

1/4"

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TYPICAL SHOTCRETE REPAIR

SCALE: 1" = 1' 0 1' 2'6"

NOTES

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SCALE: 1 1/2" = 1' 1' 2'0 6"

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SCALE: 1 1/2" = 1' 1' 2'0 6"

A1

NEW CHAIN LINK FOR INLET WALL RAILING

SCALE: 1" = 1' 0 1' 2'6"

VERTICAL DEEP JOINT REPAIR (TYP)

STA 15+83 VERTICAL JOINT REPAIR WITH WATERSTOP

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SCALE: 6" = 1'

JOINT REPAIR SURFACE GEOMETRY (TYP)

3"0 6"1-1/2"

A5

SCALE: 1" = 1'

RAILING CROSS SECTION

0 1' 2'6" A8

SCALE: 6" = 1'

RAILING BASEPLATE DETAIL

3"0 6"1-1/2"

FULLY DEVELOP THE RAILING STRENGTH, AND SHALL NOT BE WELDED TO THE EXISTING RAIL.

SO AS TO ACHIEVE A CONTINOUS RAIL. COUPLING SHALL BE OF SUFFICIENT LENGTH TO

4. WHERE NEW RAILING INTERFACES WITH EXISTING RAILING, A COUPLING SHALL BE INSTALLED

STRAIGHT AND IN LINE WITH EXISTING JOINTS

3. CONTRACTOR SHALL USE TRACK OR GUIDE FOR SAW CUTTING TO ENSURE CUTS ARE

2. #3 BENT BARS SHALL BE ANCHORED WITH HILTI HIT-HY10 PLUS EPOXY OR APPROVED EQUAL

ELEVATION AT TOP OF WALL TO EL 312

1. WATER STOP AT STA. 15+83 VERTICAL JOINT SHALL BE RUN FROM 3" BELLOW REFERENCE

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