00_00_00_00_0_GOVERNMENT_FURNISHED_INFORMATION.pdf

GOVERNMENT FURNISHED INFORMATION

DIVING INSPECTION DRAWINGS

DIVING REPORTS

C A N A D A

L/D 10

L/D 9

L/D 1

L/D 2 L/D 3

L/D 5

L/D 7

L/D 4

L/D 5A L/D 6

L/D 8

MINOT

ROCHESTER

MANKATO

BRAINERD

BEMIDJI

DULUTH

ST. PAULS.A.F. L/D'S

MINNEAPOLIS

GRAND RAPIDS

ST.CLOUD

FORKS

GRAND

EAU CLAIRE

MADISON

PORTAGE

CITY

VALLEY

S O U R

IS

R

R E

D R

IV

E R

O F

T H

E N

O R T

H

M

IS

S

IS

S

IP

P

IR.

S T

C

ROI

X

R.

M

INNE

S

OTA

RIVER

X X

X

X X

X

P R

O J E

T

A U

T H

O R

IT

Y

X X

X

D A

C W

Y R

B 0X

X

X-000

SCALE: 1''= 100'-0"

0 100'100' 50'

STATE BOUNDARIES

RIVERS & LAKES

DISTRICT BOUNDARIES

NATIONAL BOUNDARIES

L/D LOCK AND DAM

IOWA

SOUTH DAKOTA

NORTH DAKOTA

MINNESOTA

WISCONSIN

DEVIL'S

LAKE

LAKE OF

THE WOODS

UPPER

RED LAKE

LOWER

RED LAKE

LAKE

ITASCA

CASS

LAKE

LAKE

WINNIBIGOSHISH

LEECH

LAKE

MILLE

LACS

LAKE

LAKE

PEPIN

BIGSTONE

LAKE

LAKE

TRAVERSE

MICHIGAN

LAKE SUPERIOR

LEGEND

LOCATION MAP

LAKE

ASHTABULA

DARLING

LAKE

DIVING

INSPECTION

LOCK & DAM NO. 4

0 100'100' 50'

SCALE IN MILES

N

A

AREAS

& SURROUNDING

APRON, PIERS

D

IV

IN

G I

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P E

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R001_L4DIV_16SITE_V-1007.DGN

R002_L4DIV_16SITE_V-1002.DGN

R003_L4DIV_16SITE_V-1003.DGN

R004_L4DIV_16SITE_V-1004.DGN

R005_L4DIV_16SITE_V-1001.DGN

R006_L4DIV_16SITE_V-1005.DGN

R007_L4DIV_16SITE_V-1006.DGN

N A

D

U S S

U R

V E

Y F

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L

A D J

DIVER: ERIC LOCKINGTON

DIVER: NATE VAN LOON

DIVER: JON PETERS

RECORDER: MIRAY WELLE

SUPERVISOR: RANDY PIEL

S E

P T

E M

B E

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IT

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L A

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P O

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A

IN

T E

N A

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IS

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IS

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IP

P I

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L /D

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IS

C O

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IN

D w n b y

D e s ig n e d b y

D a t e

R e v

C k d b y

US Army Corps of Engineers

St. Paul District

Sheet reference number:

A

B

C

D

2 3 4 5

A u t h o r it y

F il e

N a m e

P lo t

D a t e

P lo t

S c a le

D r a w in g u m b e r

S o li c it a t io n o

S y m b o l

D e s c r ip t io n A p p r

D a t e

H o r iz o n t a l C o o r d in a t e

S y s t e m

V e r t ic a l C o o r d in a t e

S y s t e m

Sheet of

D E

P A

R T

M E

O F

H

E

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M Y

S T

P A

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IN

N E

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C O

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P A

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T R

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1 7

WI

SCONSIN R.

CH

IP

P E

W A

R

SHEYENNE R.

N

POOL - 666.48'

TAILWATER - 662.45'

SEPTEMBER 6-8, 2016 SEPTEMBER 7, 2016 @ 0800

DIVING INSPECTION TEAM

DATE OF DIVE WATER ELEVATIONS

DRAWING NO. SHT. DESCRIPTION CAD FILE

DRAWING INDEX

PIER 28

PIER 27

PIER 26

PIER 25

PIER 24

PIER 23

PIER 22

PIER 21

PIER 20

PIER 19

PIER 18

PIER 17

PIER 16

PIER 15

PIER 14

PIER 13

PIER 12

PIER 11

PIER 10

PIER 9

PIER 8

PIER 7

PIER 6

PIER 5

PIER 4

PIER 3

PIER 2

PIER 1

BAFFLE BLOCK & GATE DATA FOR ROLLER GATES

BAFFLE BLOCK & GATE DATA FOR TAINTER GATES

SITE PLAN

APRON, PIERS & SURROUNDING AREAS

BAFFLE BLOCKS

UPPER GUIDE WALL

LOWER GUIDE WALL

FLOW

w n b y

D e s ig n e d b y

D a t e

R e v

C k d b y

US Army Corps of Engineers

St. Paul District

Sheet reference number:

A

B

C

D

2 3 4 5

A u t h o r it y

F m e

P lo t

D a t e

P lo t

S c a le

D r a w m b e r

S o li c it a t

S y m b o l

D e s c r ip t io n A p p r

D a t e

H o r iz o n t a l C o o r d in a t e

S y s t e m

V e r t ic a l C o o r d in a t e

S y s t e m

Sheet of

D E

P A

R T

M E

M Y

S T

P A

U L

M

IN

N E

S O

T A

C O

R

G

IN

E E

R S

S T

P A

T R

IC

T X

X

X-000SCALE: 1''= 30'-0"

0 30'30' 10'20'

NF

L

O W

F L

O W

SCALE:

A DETAIL

1"=30'

SURROUNDING AREAS

APRON, PIERS & SHT 1

SCALE:

SURROUNDING AREAS

APRON, PIERS & SHT 1

D

IV

IN

G I

N S

P E

C T

IO

N N

A D

U S S

U R

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Y F

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A D J

M M

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D

IV

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V -1

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G N

AGGREGATE

FLOOR 3" EXPOSED

BLOCKS

BAFFLE

BROKEN

STRONG FLOW.

GATES ARE NOT SEALED,

TO GATE 16 AND 17.

UNABLE TO DIVE CLOSE

PIER 16 TO PIER 20.

FROM 6" TO 1' FROM

EXPOSED WALL VARIES

PIER 20 AND PIER 24.

FROM 6" TO 1' BETWEEN

EXPOSED WALL VARIES

DUE TO STRONG FLOW.

TO GATE 27 AND 28

UNABLE TO DIVE CLOSE

R E

P O

R T D

R A

W

IN

G D

IV

IN

G I

N S

P E

C T

IO

N

M A

IN

T E

N A

N C

E M

IS

S

IS

S

IP

P I

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IV

E R

L /D N

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M

A

W

IS

C O

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IN

A P

R O

N P

IE

R S S

U R

R O

U N

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IN

G A

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A S

2 7

M A

R C

H

P R

O J E

C T A

U T

H O

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IT

Y

D A

C W

-Y

R -B -0

3' EXPOSED

DOWNSTREAM EDGE OF WALL.

AND PIER 4. ROCK IS UP TO

FLUSH TO 1' BETWEEN PIER 1

EXPOSED WALL VARIES FROM

WALL IS APPROX. 10' HIGH

3" EROSION

BY PIER

1"-3" EXP. AGG

GATE NOT SEALED

4' x 3' ROCK

1/4" ERO.

AREAS 1" EXPOSED

AGGREGATE, FEW

FLOOR 1/2" EXPOSED

DOWNSTREAM EDGE OF WALL.

AND PIER 7. 2' ROCK IS UP TO

FLUSH TO 6" BETWEEN PIER 4

EXPOSED WALL VARIES FROM

HOLE

10" DIA x 1" DEEP

3' DIA ROCK

x 5" DEEP HOLE

3' DS PIER 12" DIA

AREAS 1" EXPOSED

AGGREGATE, FEW

FLOOR 1/2" EXPOSED

HERE

WALL

RIVERROCK

4' DIA x 3' H

ROCK PILE

HOLE

2' DIA x 1' DEEP

1' ROCK IN AREA

TO 1/4" EXP. AGG.

FLOOR SMOOTH

TO DOWNSTREAM EDGE WALL.

PIER 7 AND PIER 10. ROCK IS UP

TO ROCK OVER IT BETWEEN

EXPOSED WALL IS FLUSH

WALL.

UP TO DOWNSTREAM EDGE

PIER 10 AND PIER 15. ROCK IS

FROM FLUSH TO 1' BETWEEN

EXPOSED WALL VARIES

ERODED

TO FLOOR. TOP IS

8" TIMBER FASTENED OF ROCKS

6' DIA PILE

OF ROCKS

10' DIA PILE

EXP. AGG

FLOOR 1/4"-1/2"

EXPOSED

FLOOR 1/4"-1"

1" EROSION

EXPOSED

FLOOR 1"

HOLE 8' DIA x 2" DEEP

EXPOSED

FLOOR 1"

DOWNSTREAM EDGE WALL.

AND PIER 29. ROCK UP TO

FLUSH TO 1' BETWEEN PIER 24

EXPOSED WALL VARIES FROM

WALL

RIPRAP ALONG

EXPOSED

FLOOR 1/2"

EXPOSED

FLOOR 1/4"-1/2"

DEBRIS

HAND RAIL

P

IE

R N

O .1

P

IE

R N

O .2

P

IE

R N

O .3

P

IE

R N

O .4

P

IE

R N

O .5

P

IE

R N

O .6

P

IE

R N

O .7

P

IE

R N

O .8

P

IE

R N

O .9

P

IE

R N

O .1

P

IE

R N

O .1

P

IE

R N

O .1

P

IE

R N

O .1

P

IE

R N

O .1

P

IE

R N

O .1

P

IE

R N

O .2

P

IE

R N

O .2

P

IE

R N

O .2

P

IE

R N

O .2

P

IE

R N

O .2

P

IE

R N

O .2

P

IE

R N

O .2

P

IE

R N

O .2

P

IE

R N

O .2

P

IE

R N

O .1

P

IE

R N

O .1

P

IE

R N

O .1

P

IE

R N

O .1

CHAIN

PILE OF

18" ROCK PILE

SMALL 1' HIGH

OF ROCKS

6' DIA PILE

OF ROCKS

8' DIA PILE

OF ROCK

5' DIA PILE

AT PIER NOSE

5- 18" ROCKS

NOSE

ROCKS AT PIER

3' DIA PILE OF PEBBLES

3' ROCK AND

5' DIA x 2' HIGH

12" ROCK AND PEBBLES FLOOR AND RUNS UPSTREAM ALONG WALL. SOME PITTING.

THE CONSTRUCTION JOINT. STARTS ABOUT 5' ABOVE

THERE IS ALSO A HAIRLINE CRACK THAT STARTS NEAR

WIDEST POINT AND 2' DEEP AT DEEPEST POINT.

FLOOR AND IS APPROX. 3'-4' HIGH. HOLE IS 10" WIDE AT

HOLE AT JOINT IN WINGWALL. HOLE STARTS 5' ABOVE

DOWNSTREAM WINGWALL: WALL HAS A SIGNIFICANT

GATE 1 GATE 2 GATE 3 GATE 4 GATE 5 GATE 6

GATE 7 GATE 8 GATE 9 GATE 10 GATE 11 GATE 12 GATE 13 GATE 14

GATE 15 GATE 16 GATE 17 GATE 18 GATE 19 GATE 20 GATE 21 GATE 22 GATE 23 GATE 24 GATE 25 GATE 26 GATE 27 GATE 28

SUBMERSIBLES.

GATES 16 & 17 ARE

SUBMERSIBLES.

GATES 27 & 28 ARE

n b y

D e s ig n e d b y

D a t e

R e v

C k d b y

US Army Corps of Engineers

St. Paul District

Sheet reference number:

A

B

C

D

2 3 4 5

A u t h o r it y

F m e

P lo t

D a t e

P lo t

S c a le

D r a w m b e r

S o li c it a t

S y m b o l

D e s c r ip t io n A p p r

D a t e

H o r iz o n t a l C o o r d in a t e

S y s t e m

V e r t ic a l C o o r d in a t e

S y s t e m

Sheet of

D E

P A

R T

M E

M Y

S T

P A

U L

M

IN

N E

S O

T A

C O

R

G

IN

E E

R S

S T

P A

T R

IC

T X

X X

X X

X

P R

O J E

T H

O R

IT

Y

X X

X

D A

C W

Y R

B 0X

X

SCALE: 1''= 30'-0"

0 30'30' 10'20'

N

F L

O W

F L

O W

X X

X

X X

X

P R

O J E

T H

O R

IT

Y

X X

X

D A

C W

Y R

B 0X

X

X-000

D

IV

IN

G I

N S

P E

C T

IO

N N

A D

U S S

U R

V E

Y F

T

M S

L

A D J

M M

W

R L

D

IV

S

IT

E

V -1

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G N

R E

P O

R T D

R A

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IN

G

D

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IN

G I

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P E

C T

IO

N

M A

IN

T E

N A

N C

E M

IS

S

IS

S

IP

P I

R

IV

E R

L /D

A

L M

A

W

IS

C O

N S

IN

3 7

S E

P T

E M

B E

R

B A

F F

L E B

L O

C K L

A Y

O U

T

SCALE:

FOR ROLLER GATES

BAFFLE BLOCK DATA SHT 4

SCALE:

B DETAIL

SHT 5

FOR TAINTER GATES

BAFFLE BLOCK DATA

SCALE:

B DETAIL

SHT 5

FOR TAINTER GATES

BAFFLE BLOCK DATA

P I

54321 1 2 3 4 5 6 7

89101112

1 2 3 54 7

89101112

543216 7

89101112

6 54321 7

89101112

12 11 10 9 8

7654321

4 2 4 3 4 3 2 4 3 2 4 3 2 432 432 2 3 4 2

7 2 3 4 234 34 3 4 2 3 4 2 3 4 2 3 4 2 3 4 2 3 4 2 3 4 2 3 4

6 7

89101112131415 1314 1314 1314 1314 1314

13 567 12 1567 1567 1567 1 1 5 6 75 6 7 1 5 6 7 1

6 1 5 6 7 1567 12567 2 5 6 7 1 5 6 7 1 5 6 7 1 5 6 7 1 5 6 7 1 5 6 7 1 5 6 7 1 5 6 73 4 234 2 3 45 6 7 1567 1 5

P

IE

R N

O

.1 SET NO. 1

BAFFLE BLOCKS-

SET NO. 2

BAFFLE BLOCKS-

SET NO. 3

BAFFLE BLOCKS-

P

IE

R N

O .2

P

IE

R N

O .3

SET NO. 4

BAFFLE BLOCKS-

P

IE

R N

O .4

P

IE

R N

O .5

SET NO. 5

BAFFLE BLOCKS-

SET NO. 6

BAFFLE BLOCKS-

P

IE

R N

O .6

GATE 1 GATE 2 GATE 3 GATE 4 GATE 5 GATE 6

P

IE

R N

O .7

NO. 7

SET

BLOCKS-

BAFFLE

NO. 8

SET

BLOCKS-

BAFFLE

NO. 9

SET

BLOCKS-

BAFFLE

P

IE

R N

O .8

P

IE

R N

O .9

P

IE

R N

O .1

GATE 7 GATE 8 GATE 9

NO. 10

SET

BLOCKS-

BAFFLE

NO. 11

SET

BLOCKS-

BAFFLE

NO. 12

SET

BLOCKS-

BAFFLE

NO. 13

SET

BLOCKS-

BAFFLE

NO. 14

SET

BLOCKS-

BAFFLE

P

IE

R N

O .1

P

IE

R N

O .1

P

IE

R N

O .1

P

IE

R N

O .1

P

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R N

O .1

GATE 10 GATE 11 GATE 12 GATE 13 GATE 14

NO. 15

SET

BLOCKS-

BAFFLE

NO. 16

SET

BLOCKS-

BAFFLE

NO. 17

SET

BLOCKS-

BAFFLE

NO. 18

SET

BLOCKS-

BAFFLE

NO. 19

SET

BLOCKS-

BAFFLE

NO. 20

SET

BLOCKS-

BAFFLE

NO. 21

SET

BLOCKS-

BAFFLE

NO. 22

SET

BLOCKS-

BAFFLE

NO. 23

SET

BLOCKS-

BAFFLE

NO. 24

SET

BLOCKS-

BAFFLE

NO. 25

SET

BLOCKS-

BAFFLE

NO. 26

SET

BLOCKS-

BAFFLE

NO. 27

SET

BLOCKS-

BAFFLE

NO. 28

SET

BLOCKS-

BAFFLE

P

IE

R N

O .1

P

IE

R N

O .1

P

IE

R N

O .2

P

IE

R N

O .2

P

IE

R N

O .2

P

IE

R N

O .2

P

IE

R N

O .2

P

IE

R N

O .2

P

IE

R N

O .2

P

IE

R N

O .2

P

IE

R N

O .2

GATE 15 GATE 16 GATE 17 GATE 18 GATE 19 GATE 20 GATE 21 GATE 22 GATE 23 GATE 24 GATE 25 GATE 26 GATE 27

P

IE

R N

O .1

P

IE

R N

O .1

GATE 28

n b y

D e s ig n e d b y

D a t e

R e v

C k d b y

US Army Corps of Engineers

St. Paul District

Sheet reference number:

A

B

C

D

2 3 4 5

A u t h o r it y

F m e

P lo t

D a t e

P lo t

S c a le

D r a w m b e r

S o li c it a t

S y m b o l

D e s c r ip t io n A p p r

D a t e

H o r iz o n t a l C o o r d in a t e

S y s t e m

V e r t ic a l C o o r d in a t e

S y s t e m

Sheet of

D E

P A

R T

M E

M Y

S T

P A

U L

M

IN

N E

S O

T A

C O

R

G

IN

E E

R S

S T

P A

T R

IC

T X

X X

X X

X

P R

O J E

T H

O R

IT

Y

X X

X

D A

C W

Y R

B 0X

X

X-000

X X

X

X X

X

P R

O J E

T H

O R

IT

Y

X X

X

D A

C W

Y R

B 0X

X

X-000

D

IV

IN

G I

N S

P E

C T

IO

N

M S

L

A

D J

N

R V

Y

M M

W

R L

D

IV

S

IT

E

V -1

.D

G N

D A

T A F

O R R

O L L E

R G

A T

E S T

H R

U

B A

F F

L E B

L O

C K A

N D G

A T

E B

A Y

R E

P O

R T D

R A

W

IN

G

D

IV

IN

G I

N S

P E

C T

IO

N

M A

IN

T E

N A

N C

E M

IS

S

IP

P I

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IV

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L /D N

O .4

A

L M

A

W

IS

C O

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IN

4 7

F E

B R

U A

R Y

OF BLOCK IS 3' x 1' x 7" DEEP HOLE.

BLOCK 15 HAS A 5" x 5" CHUNK MISSING ON MN SIDE. FLOOR HAS 1" EROSION. JUST DS

A 6.5' x 2' x 2' DEEP HOLE.

IS A 4' x 3' x 2' DEEP HOLE, NO REBAR OR DEBRIS. ALSO 1' DS, MN SIDE OF BLOCK IS

BLOCK 14 IS IN GOOD CONDITION. FLOOR HAS 1/4 " EROSION. 1' DS, WI SIDE OF BLOCK

A 5' DIAMETER x 2' DEEP HOLE.

BLOCK 13 IS IN GOOD CONDITION. FLOOR HAS 1" PITTING. ON DS SIDE OF BLOCK IS

BLOCK 12 IS IN GOOD CONDITION, SAME FLOOR CONDITIONS AS 11.

IS TIGHT.

DS SIDE OF THE BLOCK. REST OF FLOOR HAS 1/4" EXPOSED AGGREGATE. JOINT

BLOCK 11 IS IN GOOD CONDITION. BLOCK HAS A 6" DEEP HOLE ON BOTH THE US AND

OF BLOCK.

BLOCK 10 IS IN GOOD CONDITION. SOME 1" PITTING ON THE FLOOR ON THE DS SIDE

BLOCK IS A 8' x 4' x 2' DEEP HOLE WITH EXPOSED REBAR.

BLOCK 9 HAS SOME ROUNDED CORNERS, BUT OVERALL GOOD CONDITION. 1' DS OF

NUTS AND BOLTS IN IT. REST OF FLOOR AROUND BLOCK HAS 1/4"-1/2" EROSION.

BLOCK 8 IS IN GOOD CONDITION. DS OF BLOCK IS A 5' DIA. x 6" DEEP HOLE THAT HAS

JOINT IS TIGHT.

2 THRU 4, ALMOST LIKE IT WAS MADE THAT WAY. NO FLOW OUT OF JOINT. REST OF

JOINT IS 3"-4" WIDE AT TOP, THEN ANGLES DOWN TO 1.5" AT BOTTOM NEAR BLOCKS

CONSTRUCTION JOINT RUNS ALONG THE US BASE OF THIS ROW OF BLOCKS.

BLOCK HAS 1/2" EROSION.

BLOCK 7 HAS A 8" x 8" x 6" CHUNK MISSING ON TOP WI CORNER. FLOOR AROUND

CORNERS. FLOOR AROUND THESE BLOCKS HAS 1/2" EROSION.

BLOCKS 3 THRU 6 ARE IN GENERAL GOOD CONDITION, SOME MINOR WEAR ON

IN GOOD CONDITION. FLOOR HAS 1/4"-1/2" EROSION.

BLOCK 2 HAS A 1' L. x 4" H. x 2" DEEP CHUNK MISSING ON MN SIDE. REST OF BLOCK

BLOCK HAS 1/4"-1/2" EROSION.

BLOCK 1 HAS ROUNDED CORNERS, OVERALL GOOD CONDITION. FLOOR AROUND

GATE BAY FLOOR HAS 1/2"-1" EXPOSED AGGREGATE. PIERS IN GOOD CONDITION.

6' DIA x 2' DEEP.

BLOCK 13 IS A 2" PIPE, STICKING UP 3". JUST DOWNSTREAM OF BLOCK 14 IS A HOLE

BLOCKS 12 THRU 14 ARE IN GOOD CONDITION. FLOOR HAS 1/4"-1/2" EROSION. NEAR

CHUNK. FLOOR AROUND BLOCK HAS 1/4"-1/2" EROSION.

BLOCK 11 HAS ROUNDED CORNERS AND THE DS MN CORNER IS MISSING A 6" DIA

HAS 1-3" EROSION.

BLOCK 10 IS IN GOOD CONDITION. 1' DS ON MN SIDE IS HOLE 4' x 1' x 9" DEEP. FLOOR

A HOLE 10' L. x 4' W. x 18" DEEP. FLOOR AROUND HOLE HAS 1" EROSION.

BLOCK 9 HAS A 6" DIA. CHUNK MISSING FROM THE TOP WI CORNER. DS OF BLOCK IS

3' DIA ROCK WITH ROUNDED EDGES FOUND IN HOLE.

BLOCK 8 IS IN GOOD CONDITION. DS OF BLOCK 8 IS A 5' DIA x 1.5' DEEP HOLE. A

BLOCK 7 IS IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

ON THE WI SIDE, THERE IS A 4" x 3" x 3" CHUNK MISSING. SAME FLOOR CONDITIONS.

BLOCK 6 HAS A 3" HOLE ON THE MN SIDE WHERE THE BLOCK MEETS THE FLOOR.

BLOCK 5 IS IN GOOD CONDITION. FLOOR HAS 1/4"-1/2" EROSION.

ALSO A 8" DIA CHUNK MISSING FROM THE MIDDLE DS SIDE OF BLOCK.

BLOCK 4 HAS A 6" DIA. CHUNK MISSING FROM THE TOP MN SIDE. THERE IS

BLOCK 3 IS IN GOOD CONDITION. FLOOR STILL SHOWS LITTLE EROISION.

SIDE OF BLOCK IS A 6" x 6" x 4" CHUNK MISSING. FLOOR HAS 1/4" EROSION.

BLOCK 2 HAS A 5" CHUNK MISSING ON THE MN SIDE OF THE BLOCK. ON WI

BLOCK 1 IS IN GOOD CONDITION. FLOOR SHOWS VERY LITTLE EROSION.

CONSTRUCTION JOINT RUNNING ON US SIDE OF BLOCKS IS TIGHT.

GATE BAY FLOOR HAS 1/4" EROSION. PIERS IN GOOD CONDITION.

DS OF BLOCK 14 IS A 4' DIA x 18" DEEP HOLE WITH MISC STEEL AND EXPOSED BAR IN IT.

BLOCKS 13 AND 14 ARE IN GOOD CONDITION. FLOOR HAS 1/4" EROSION AND SAND.

EROSION AND SAND.

BLOCK 12 AS A 4" x 4" CHUNK MISSING ON THE DS WI SIDE CORNER. FLOOR HAS 1/4"

STILL SOME SAND HERE.

BLOCKS 10 AND 11 ARE GOOD CONDITION. FLOOR VARIES FROM 1/4" TO 1" EROSION.

5' DIA x 2' DEEP, WITH NOTHING IN IT. FLOOR HAS 1" EROSION ALL AROUND BLOCK.

BLOCK 9 HAS ROUNDED CORNERS, OVERALL GOOD CONDITION. DS OF BLOCK IS A HOLE

BLOCK.

DS OF BLOCK IS A 8' DIA x 2' DEEP HOLE. ANOTHER HOLE 1' DIA x 10" DEEP JUST DS OF

A 6" DIA. CHUNK OUT OF THE TOP STEP. FLOOR AROUND BLOCK HAS 1/2"-1" EROSION.

BLOCK 8 HAS A CRACK THAT RUNS DOWN THE MIDDLE OF BLOCK. THERE IS ALSO

BLOCK 7 IS IN GOOD CONDITION. FLOOR AROUND BLOCK HAS 1/2" EROSION.

FLOOR IS IN GOOD CONDITION.

BLOCK 6 IS MISSING THE TOP STEP. THERE IS 3" OF EXPOSED AGGREGATE ON BLOCK.

BLOCK 5 IS IN GOOD CONDITION AS IS THE FLOOR (STILL SOME SAND HERE).

BLOCK 4 HAS A 3" CHUNK MISSING ON THE US MN SIDE. FLOOR HAS 1/4" EROSION.

HAS 1" PITTING AND SOME SAND AT FLOOR.

BLOCK 3 HAS A 3" x 3" x 6" CHUNK MISSING ON TOP MN CORNER. US SIDE OF BLOCK

GOOD CONDITION.

BLOCK 2 HAS ROUNDED CORNERS, OVERALL GOOD CONDITION. FLOOR IS IN

EROSION ALL AROUND BLOCK.

BLOCK 1 HAS A 4" x 6" CHUNK MISSING ON THE MN SIDE. FLOOR HAS 1/4"-1/2"

FILLED IT IN, IN SOME PLACES.

CONSTRUCTION JOINT RUNNING ON US SIDE OF BLOCKS IS TIGHT. SOME SAND

MANY FISH. PIERS ARE IN GOOD CONDITION.

STRONG FLOW ON MN SIDE OF GATE. GATE BAY FLOOR HAS 1/2" EROSION AND

HOLE. REST OF FLOOR AROUND BLOCK HAS 1/4" EROSION.

BLOCK 14 HAS WEAR AT THE BASE OF BLOCK. 2' DS OF BLOCK IS 3' DIA x 1.5' DEEP

DEBRIS IN IT.

GOOD CONDITION. 2' DS OF BLOCK IS A 6' x 4' x 2' DEEP HOLE WITH MISC METAL

BLOCK 13 HAS WEAR AT THE BASE OF BLOCK, 5' L x 4" DEEP. REST OF BLOCK IS IN

HAS 1/4" EROSION.

BLOCK 12 IS IN GOOD CONDITION. DS OF BLOCK IS A 8" x 2" DEEP HOLE. FLOOR

CORNER. 1/4" EROSION ON FLOOR.

BLOCK 11 IS IN GOOD CONDITION. SMALL CHUNK MISSING FROM US WI SIDE

BLOCK 10 IS IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

DS OF BLOCK IS A PIECE OF STEEL. FLOOR HAS 1/4" EROSION.

BLOCK 9 IS IN GOOD CONDITION. 1' DS OF BLOCK IS A 4' DIA x 1' DEEP HOLE. ALSO

SIDE OF BLOCK. REST FLOOR HAS 1/4"-1/2" EROSION.

WITH MISC NUTS AND BOLTS, NO ROCKS. FLOOR 1" EXPOSED AGGREGATE ON DS

US OF BLOCK IS A 6' DIA x 18" DEEP HOLE. DS OF BLOCK IS A 7' DIA x 1' DEEP HOLE

BLOCK 8 HAS A TIGHT CRACK RUNNING THRU BLOCK (CONSTRUCTION JOINT?).

HAS 1/8"-1/4" EROSION.

BLOCKS 4 THRU 7 ARE ALL IN GOOD CONDITION. SOME NORMAL WEAR. FLOOR

BLOCK IS GOOD. FLOOR IS SMOOTH.

BLOCK 3 HAS 2- 5" DIA AREAS BROKEN OUT OF MN SIDE CORNERS. RES OF

BLOCKS 1 AND 2 ARE IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

CONSTRUCTION JOINT RUNNING ON US SIDE OF BLOCKS IS TIGHT.

1/4"-1/2" EXPOSED AGGREGATE.

GATE IS NOT SEALED ALL THE WAY ON MN SIDE. FLOOR AND PIERS HAVE

REBAR. NOTHING ELSE IS IN THE HOLE.

HOLE WITH NOTHING IN IT. DS OF BLOCK 14 IS A 6' DIA x 2' DEEP HOLE WITH EXPOSED

BLOCKS 13 AND 14 ARE GOOD CONDITION. DS OF BLOCK 13 IS A 8" DIA x 3" DEEP

BLOCK 12 IS IN GOOD CONDITION. FLOOR SAME AS BLOCK 11.

DEEP. FLOOR HAS 1/4"-1/2" EROSION.

BLOCK 11 HAS HEAVY EROSION AT THE BASE OF BLOCK, 16" LONG x 4" HIGH x 1.5"

GOOD. JOINT IS TIGHT. 3" WEEP HOLES NOT WEEPING.

BLOCK 10 HAS NORMAL WEAR ON CORNERS. REST OF BLOCK AND FLOOR ARE

EROSION.

IS A 5' DIA x 1' DEEP HOLE WITH EXPOSED REBAR. REST OF FLOOR HAS 1/2"

BLOCK 9 HAS WORN CORNERS, BUT OVERALL GOOD CONDITION. DS OF BLOCK

BOLTS AND STEEL.

SHARP CORNERS. DS OF BLOCK IS A HOLE 5' DIA x 1.5' DEEP FILLED WITH NUTS, AREA 5" HIGH AND 2" DEEP OF EROSION. BEHIND BLOCK IS A 24" ROCK WITH

BLOCK 8 HAS 3-4" CHUNK OUT OF D/S WI CORNER. BASE OF BLOCK HAS AN

BLOCKS 6 AND 7 ARE IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

GOOD. FLOOR HAS 1/4" EROSION.

BLOCK 5 HAS 2 SMALL CHUNKS MISSING ON THE WI SIDE. REST OF BLOCK IS

BLOCK 4 IS IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

HAS 1/4" EROSION.

ALSO AT MN BASE, A CHUNK 4" x 2" x 1" DEEP IS MISSING. FLOOR AROUND BLOCK

BLOCK 3 HAS HEAVY EROSION AT THE BASE OF BLOCK, 20" LONG 3/4" DEEP.

EROSION.

REST OF BLOCK IS IN GOOD CONDITION. FLOOR AROUND BLOCK HAS 1/4"-1/2"

BLOCK 2 HAS AN AREA OF WEAR AT THE BASE OF BLOCK, 1' x 3" x 1/2" DEEP.

EROSION.

REST OF BLOCK IS IN GOOD CONDITION. FLOOR AROUND BLOCK HAS 1/4"-1/2"

BLOCK HAS A 10" x 10" x 4" DEEP CHUNK MISSING ON THE BOTTOM MN CORNER.

OF 1/2"-1" EXPOSED AGGREGATE ON DS EDGE.

CONSTRUCTION JOINT RUNNING ON US SIDE OF BLOCKS IS TIGHT. FEW AREAS

GOOD CONDITION.

GATE BAY FLOOR AND PIERS HAVE 1/4" EXPOSED AGGREGATE. BOTH ARE IN

x 1' DEEP HOLE WITH SOME CHAIN AND EXPOSED REBAR.

BLOCK 14 IS IN GOOD CONDITION AS WELL AS FLOOR. JUST BELOW BLOCK IS A 6' DIA

CUTTING THRU IT. FLOOR SAME AS BLOCK 12.

BLOCK 13 IS GOOD EXCEPT FOR 1/2"-3/4" DEEP SLICE ON MN SIDE, LIKE A CABLE WAS

FLOOR HAS 1/4"-1/2" EROSION.

BLOCK 12 IS GOOD EXCEPT FOR 4-6" OF EROSION ON TOP STEP TOWARDS MN SIDE.

JOINT BETWEEN 11 AND 12 IS TIGHT.

BLOCK 11 IS IN GOOD CONDITION. FLOOR HAS 1/4"-1/2" EROSION. CONSTRUCTION

FLOOR IN GOOD CONDITION.

BLOCK 10 ON MN SIDE HAS A 3" x 6" x 2" DEEP CHUNK MISSING. REST OF BLOCK AND

BLOCK 9 IS MISSING MN SIDE OF TOP STEP. FLOOR HAS 1/4"-1/2" EROSION.

FLOOR AROUND BLOCK HAS 1/2" EROSION.

BLOCK AND WALL THAT EXTENDS US-DS FROM PIER. ROCK IS PARTIALLY SMOOTH.

EROSION. WI SIDE HAS A 8" x 5" x 2" DEEP CHUNK MISSING. LARGE RIVER ROCK BY

BLOCK 8 HAS WORN CORNERS. MN SIDE HAS AN AREA 18" x 6" x 2" DEEP OF HEAVY

HAMPSHIRE.

HAS 1/4"-1/2" EROSION. JUST US OF BLOCK 7 IS A 18" ROCK SHAPED LIKE NEW

BLOCK 5 THRU 7 ARE IN OVERALL GOOD CONDITION WITH WORN CORNERS. FLOOR

IN GOOD CONDITION.

BLOCK 4 HAS A CRACK THRU ALL STEPS (JOINT?). REST OF BLOCK AND FLOOR ARE

IS MISSING. ALSO BLOCK HAS 1" EROSION NEAR BASE. FLOOR HAS 1/4"-1/2" EROSION.

BLOCK 3 IS HEAVILY ERODED ON TOP. ON WI SIDE BASE, A 4" DIA x 2" DEEP CHUNK

BLOCK AND FLOOR ARE IN GOOD CONDITION.

BLOCK 2 HAS A SMALL 3" DIA x 1.5" DEEP CHUNK MISSING ON THE WI SIDE. REST OF

1/4"-1/2" EROSION.

BLOCK 1 HAS WORN CORNERS BUT OVERALL IN GOOD CONDITION. FLOOR HAS

BLOCK 7, JOINT IS A LITTLE BEAT UP.

CONSTRUCTION JOINT RUNNING ON THE US SIDE OF BLOCKS IS TIGHT. NEAR

LARGE 2' LONG x 4' WIDE PILE OF CHAIN. PIERS ARE IN GOOD CONDITION.

FLOOR CLOSE TO GATE. ALSO ON WI SIDE NEXT TO PIER, JUST US OF BLOCKS IS A

GATE BAY FLOOR IS 1/4" EXPOSED AGGREGATE. A 6" x 8" x 1" DEEP HOLE ON WI SIDE

BAFFLE BLOCKS AND GATE BAYS FOR ROLLER GATES

BAFFLE BLOCKS - SET NO. 1 BAFFLE BLOCKS - SET NO. 2 BAFFLE BLOCKS - SET NO. 3 BAFFLE BLOCKS - SET NO. 4

BAFFLE BLOCKS - SET NO. 5 BAFFLE BLOCKS - SET NO. 6

n b y

D e s ig n e d b y

D a t e

R e v

C k d b y

US Army Corps of Engineers

St. Paul District

Sheet reference number:

A

B

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2 3 4 5

A u t h o r it y

F m e

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D a t e

P lo t

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D r a w m b e r

S o li c it a t

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D e s c r ip t io n A p p r

D a t e

H o r iz o n t a l C o o r d in a t e

S y s t e m

V e r t ic a l C o o r d in a t e

S y s t e m

Sheet of

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M Y

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IN

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IS

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R -B -0

HALFWAY UP THE SLOT ON D/S SIDE.

WI BULKHEAD SLOT HAS A SCOUR AREA OF 18" x 9" x 4" DEEP

1/4" EROSION.

BLOCKS 2 THRU 6 ARE ALL MISSING THE TOP STEP. FLOOR HAS

1/4" EROSION.

BLOCKS 1 AND 7 ARE GOOD, HAS ONLY SURFACE WEAR. FLOOR HAS

GATE BAY FLOOR IS SMOOTH, CONSTRUCTION JOINT IS TIGHT.

10" DIA WITH 1" EXPOSED AGGREGATE. REST SLOT IN GOOD CONDITION.

MN BULKHEAD SLOT 18" BELOW WATER LINE, IS AN AREA OF SCOUR

DAMAGE IS 1' HIGH AND 2" DEEP NEAR LADDER.

WI BULKHEAD SLOT HAS DAMAGE NEAR UPSTREAM WATER LINE.

SIDE. REST OF BLOCK AND FLOOR IN GOOD CONDITION.

BLOCK 7 HAS A SMALL CHUNK 4" DIA x 3" DEEP MISSING ON MN

BLOCKS HAVE 1/4" EXPOSED AGGREGATE.

BLOCKS 2 THRU 6 ARE MISSING TOP STEP. FLOOR AROUND

BLOCK 1 AND FLOOR AROUND BLOCK ARE IN GOOD CONDITION.

GOOD CONDITION. CONSTRUCTION JOINT IS TIGHT.

MN BULKHEAD SLOT IN GOOD CONDITION. GATE BAY FLOOR IN

WI BULKHEAD SLOT HAS SCOUR DAMAGE 6" BELOW WATER LINE.

BLOCK 7 TOP STEP IS GONE WITH EXPOSED REBAR. FLOOR SAME.

BLOCKS 3 THRU 6 THE TOP STEP IS GONE. FLOOR IS GOOD.

RUNS THRU IT. FLOOR SAME AS BLOCK 1.

BLOCK 2 IS CRACKED IN HALF WHERE CONSTRUCTION JOINT

BLOCK 1 IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

IN GOOD CONDITION. CONSTRUCTION JOINT IS TIGHT.

MN BULKHEAD SLOT IS GOOD. GATE BAY FLOOR AND PIERS ARE

WI BULKHEAD SLOT HAS 2' x 2" DEEP SCOUR AREA NEAR THE WATER LINE.

BLOCK 7 IS ALL THERE AND IN GOOD CONDITION. FLOOR IS SMOOTH.

MISSING. FLOOR IS GOOD.

BLOCK 6 IS MISSING TOP STEP. BOTTOM STEP HAS A 10" x 16" CHUNK

BLOCKS 3 THRU 5 IS MISSING TOP STEP. FLOOR GOOD.

IS MISSING FROM THE MN SIDE. FLOOR HAS 1/4" EROSION.

BLOCK 2 HAS BOTH STEPS ALTHOUGH A 3" L. x 4" W. x 10" DEEP CHUNK

BLOCK 1 IS IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

TIGHT. PIERS IN GOOD CONDITION.

WATER LINE. GATE BAY FLOOR HAS 1/4" EROSION. CONSTRUCTION JOINT IS

MN BULKHEAD SLOT HAS A 8" x 2" x 4" DEEP CHUNK MISSING 18" BELOW THE

WI BULKHEAD HAS SCOUR AREA 6" DIA x 3" DEEP, 18" BELOW WATER LINE.

BLOCK 7 IS IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

IS CLEAN, CONSTRUCTION JOINTS ARE TIGHT.

BLOCKS 2 THRU 6 ARE MISSING TOP STEP. FLOOR AROUND BLOCKS

BLOCK 1 IN IS GOOD CONDITION. FLOOR HAS 1/4" EROSION.

CONSTRUCTION JOINT IS TIGHT.

GOOD. GATE BAY FLOOR AND PIERS ARE IN GOOD CONDITION.

MN BULKHEAD HAS A 6" DIA x 3" DEEP CHUNK MISSING. REST OF SLOT IS

AGGREGATE ON DS SIDE.

MN BULKHEAD SLOT IS IN GOOD CONDITION. 1/2" EXPOSED

BLOCK 7 IS IN GOOD CONDITION. FLOOR IS CLEAN AND SMOOTH.

BLOCKS 3 THRU 6 ARE MISSING TOP STEP. FLOOR STILL SMOOTH.

GOOD CONDITION. FLOOR IS SMOOTH.

BLOCK 2 HAS CRACK DOWN MIDDLE OF BLOCK BUT IS STILL IN

BLOCK 1 IS IN GOOD CONDITION. FLOOR IS CLEAN AND SMOOTH.

IS TIGHT. PIERS ARE IN GOOD CONDITION.

WATER LINE. GATE BAY FLOOR IS SMOOTH. CONSTRUCTION JOINT

WI BULKHEAD SLOT IN GOOD CONDITION EXCEPT IS PITTED NEAR

MN BULKHEAD SLOT HAS MINOR EROSION AT WATERLINE.

1/4 " EROSION.

BLOCK 7 IS INTACT AND HAS 1/4" EROSION. FLOOR ALSO HAS

GOOD. FLOOR HAS 1/4 " EROSION.

BLOCKS 2 THRU 6 ARE MISSING TOP STEP. REST OF BLOCKS ARE

BLOCK 1 IS IN GOOD CONDITION. FLOOR HAS 1/4 " EROSION.

IS TIGHT. PIERS IN GOOD CONDITION.

WATER GATE BAY FLOOR HAS 1/4" EROSION. CONSTRUCTION JOINT

WI BULKHEAD SLOT HAS A 2' DIA x 2" DEEP CHUNK MISSING NEAR

WATER LINE

MN BULKHEAD SLOT HAS AREA 1' DIA x 3" DEEP OF SCOUR NEAR

BLOCK 7 IS IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

FROM JOINT.

IS AN AREA OF DAMAGE 18" L x 8" W x 4" DEEP. THERE IS NO FLOW COMING

BLOCK IS A 20" DIA x 9" DEEP HOLE. IN CONSTRUCTION JOINT NEAR BLOCK

BLOCK 6 IS MISSING TOP STEP. FLOOR IS IN GOOD CONDITION. DS OF

BLOCKS 2 THRU 5 ARE MISSING TOP STEP. FLOOR HAS 1/4" EROSION.

BLOCK 1 AND FLOOR IN GOOD CONDITION.

CONSTRUCTION JOINT IS TIGHT. PIERS ARE IN GOOD CONDTION.

6"-8" BELOW WATERLINE. GATE BAY FLOOR HAS 1/4" EROSION.

WI BULKHEAD SLOT HAS 1" EROSION IN BOTTOM OF SLOT. PITTED

THE WATERLINE.

WI BULKHEAD SLOT HAS ICE DAMAGE. AN 8" CHUNK IS MISSING NEAR

CONDITION.

BLOCK 7 IS CRACKED IN HALF. FLOOR AROUND BLOCK IS IN GOOD

REBAR. FLOOR IS SMOOTH.

BLOCKS 4 THRU 6 ALL THE TOP STEP MISSING WITH SOME EXPOSED

BLOCKS 2 AND 3 ARE CRACKED IN HALF. FLOOR HAS 1/4" EROSION.

BLOCK 1 IS IN GOOD CONDITION. FLOOR HAS 1/4"-1/2" EROSION.

NEAR GATE, CAN'T SEAL. PIER WALLS NORMAL WEAR.

AT THE FLOOR OF SLOT, WOULD BE UNABLE TO SEAL. UNABLE TO DIVE

STRONG FLOW AT GATE AND BLOCKS. MN BULKHEAD HAS SOMETHING

HAS MINOR DAMAGE AT WATERLINE.

MN BULKHEAD SLOT IS BEAT UP ON THE DOWNSTREAM CORNER AND

BLOCK 7 IS IN GOOD CONDITION. FLOOR HAS 1/4"-1/2" EROSION.

FLOOR HAS 1/4" EROSION.

JOINT RUNS THRU IT. TOP STEP ON WI SIDE READY TO SHEAR OFF.

BLOCK 6 IS INTACT BUT IS CRACKED IN HALF WHERE CONSTRUCTION

FLOOR SAME.

BLOCKS 4 AND 5 ARE MISSING TOP STEP AND HAS EXPOSED REBAR.

HAS 1/4" EROSION.

BLOCK 3 TOP WILL SOON FALL OFF. HAS A CRACK TO BASE. FLOOR

FLOOR HAS 1/4" EROSION.

THRU IT. PART OF THE FIRST STEP HAS SHEARED OFF NEAR THE JOINT.

BLOCK 2 IS ALL THERE AND HAS A CONSTRUCTION JOINT RUNNING

BLOCK 1 IS IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

CONSTRUCTION JOINT IS TIGHT. PIERS ARE GOOD.

HAS 1/4" EROSION. THERE IS SOME ROCK ALONG THE LEDGE.

WI BULKHEAD SLOT HAS DAMAGE NEAR WATERLINE. GATE BAY FLOOR

SLOT FLOOR IS 2" EROSION.

MN BULKHEAD SLOT IS IN GOOD CONDITION, NORMAL WEAR. AT

BLOCK 7 IS IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

BLOCK 6 IS CRACKED IN HALF. FLOOR SAME.

OF FLOOR IN GOOD CONDITION.

CONSTRUCTION JOINT HAS A 6"-8" L x 1.5" W x 1.5" DEEP HOLE. REST

BLOCKS 2 THRU 5 ARE MISSING TOP STEP. AT BASE OF BLOCK 2 THE

BLOCK 1 IS IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

INSPECT NEAR GATE, CAN'T SEAL. PIER WALLS ARE GOOD.

WI BULKHEAD SLOT HAS DAMAGE NEAR WATERLINE. UNABLE TO

MN BULKHEAD SLOT HAS ICE DAMAGE AT WATERLINE. REST IS GOOD.

BLOCK 7 IS IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

REBAR. FLOOR HAS 1/4" EROSION ALL AROUND BLOCKS.

BLOCKS 2 THRU 6 ARE MISSING TOP STEP, WITH SOME EXPOSED

BLOCK 1 IS IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

HAS 1/4" EROSION. CONSTRUCTION JOINT IS TIGHT. PIERS IN GOOD CONDITION.

WI BULKHEAD SLOT HAS ICE DAMAGE AT WATERLINE. GATE BAY FLOOR

MAINTAIN GOOD SEAL.

WI BULKHEAD SLOT HAS HEAVY EROSION - MAY NOT BE ABLE TO

BLOCK 7 IS IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

AROUND BLOCKS.

BLOCK 2 THRU 6 ARE MISSING TOP STEP. FLOOR HAS 1/4" EROSION

BLOCK 1 IS IN GOOD CONDITION. FLOOR HAS 1/4"-1/2" EROSION.

ARE IN GOOD CONDITION.

FLOOR HAS 1/4"-1/2" EROSION. CONSTRUCTION JOINT IS TIGHT. PIERS

MN BULKHEAD SLOT HAS ICE DAMAGE AT WATERLINE. GATE BAY

WATERLINE.

WI BULKHEAD SLOT HAS DAMAGE AND MISSING 6" CHUNK AT

BLOCK 7 IS IN GOOD CONDITION. FLOOR HAS /14" EROSION.

FLOOR AROUND BLOCKS HAS 1/4" EROSION.

BLOCKS 2 THRU 6 ARE MISSING TOP STEP WITH SOME EXPOSED REBAR.

BLOCK 1 IS IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

JOINT IS TIGHT. PIERS ARE IN GOOD CONDITION, NORMAL WEAR.

AT WATERLINE. GATE BAY FLOOR HAS 1/4" EROSION. CONSTRUCTION

MN BULKHEAD SLOT HAS ICE DAMAGE AT SLOT, MISSING 6" CHUNK

MN BULKHEAD SLOT SAME AS WI BULKHEAD SLOT.

BLOCK 7 IS IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

HAVE 1/4" EROSION.

BLOCKS 2 THRU 6 ARE MISSING TOP STEP. FLOOR AROUND BLOCKS

BLOCK 1 IS IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

JOINT IS TIGHT.

WATERLINE. GATE BAY FLOOR HAS 1/4"-1/2" EROSION. CONSTRUCTION

WI BULKHEAD SLOT HAS A 6" L. x 4" DEEP CHUNK MISSING JUST UNDER

EDGE AND HAS ICE DAMAGE AT WATERLINE.

MN BULKHEAD SLOT HAS A 1' PIECE MISSING ON THE DOWNSTREAM

BLOCK 7 IS IN GOOD CONDITION. FLOOR HAS 1/4"-1/2" EROSION.

FLOOR BEHIND BLOCK 6 HAS 2" EXPOSED AGGREGATE.

BLOCKS 3 THRU 6 ARE MISSING TOP STEP. FLOOR HAS 1/4" EROSION.

REST OF THE BLOCK. FLOOR IN GOOD CONDITION.

BLOCK 2 IS MISSING TOP STEP AND THERE IS NOT MUCH LEFT OF THE

BLOCK 1 IS IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

PIER WALLS GOOD CONDITION. CONSTRUCTION JOINT IS TIGHT.

6" x 8" IS MISSING NEAR WATERLINE. GATE BAY FLOOR HAS 1/4" EROSION.

WI BULKHEAD SLOT HAS 2" OF EROSION AT BOTTOM OF SLOT. A CHUNK

BOTTOM.

MN BULKHEAD SLOT IS IN GOOD CONDITION AND HAS 1/4" EROSION AT

BLOCK 7 IS IN GOOD CONDITION. FLOOR IS SAME.

HAS 1/4"-1/2" EROSION.

BLOCK 6 HAS A 5" DIA x 3" DEEP HOLE ON WI SIDE NEAR FLOOR. FLOOR

HAS 1/4"-1/2" EROSION.

BLOCKS 2 THRU 5 ARE MISSING TOP STEP. FLOOR AROUND BLOCKS

BLOCK 1 IS IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

AGGREGATE. CONSTRUCTION JOINT IS TIGHT. LOTS OF FISH HERE.

BAY FLOOR HAS 1/4" EROSION. PIERS ARE GOOD WITH 1/2" EXPOSED

CHUNK ON DOWNSTREAM EDGE JUST BELOW WATERLINE. GATE

WI BULKHEAD SLOT HAS 1/2" WEAR ON FLOOR AND IS MISSING A 1'

BELOW WATERLINE.

8" L. x 6" W. x 6" DEEP IS MISSING ON THE DOWNSTREAM EDGE

MN BULKHEAD SLOT HAS MINOR EROSION ON FLOOR. A CHUNK

BLOCK 7 IS IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

6" L. x 3" W. x 2" DEEP IS MISSING ON THE WI SIDE. FLOOR IS GOOD.

BLOCK 6 IS ALL THERE, HOWEVER, IT HAS MANY CRACKS. A CHUNK

BLOCKS 2 THRU 5 ARE MISSING TOP STEP. FLOOR HAS 1/4" EROSION.

BLOCK 1 IS IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

GOOD CONDITION. CONSTRUCTION JOINT IS TIGHT.

STUCK UNDER GATE. GATE BAY FLOOR HAS 1/4" EROSION. PIERS ARE IN

IS MISSING NEAR WATERLINE. GATE IS NOT SEALED WELL DUE TO A LOG

WI BULKHEAD SLOT IS HEAVILY ERODED. A 2' L. x 8" W. x 6" DEEP PIECE

MN BULKHEAD SLOT HAS ICE DAMAGE AND SCOURING IN SLOT.

BLOCK 7 IS IN GOOD CONDITION. FLOOR SAME.

HAS 1/4" EROSION.

BLOCK 6 IS ALL THERE BUT TOP STEP IS READY TO FALL OFF. FLOOR

HAS 1/4" EROSION.

BLOCKS 2 THRU 5 ARE MISSING TOP STEP. FLOOR AROUND BLOCKS

BLOCK 1 IS IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

PIERS ARE IN GOOD CONDITION. CONSTRUCTION JOINT IS TIGHT.

DAMAGE NEAR WATERLINE. GATE BAY FLOOR HAS 1/4" EROSION.

WI BULKHEAD SLOT HAS 2" EROSION AT BOTTOM OF SLOT. SLOT HAS

AT WATERLINE.

MN BULKHEAD SLOT HAS 1/2" EROSION IN IT. THERE IS ICE DAMAGE

BLOCK 7 IS IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

FLOOR HAS 1/4" EROSION.

BLOCK 6 IS ALL THERE AND HAS CONSTRUCTION JOINT THRU MIDDLE.

1/4" EROSION. FLOOR HAS 1/4" EROSION.

BLOCKS 3 THRU 5 ARE MISSING TOP STEP. REST OF BLOCKS HAVE

FLOOR IS IN GOOD CONDITION.

BLOCK 2 IS ALL THERE, BUT STARTING TO SEPARATE NEAR CRACK.

BLOCK 1 IS IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

IS TIGHT.

HAS 1/4" EROSION. PIERS IN GOOD CONDITION. CONSTRUCTION JOINT

WI BULKHEAD SLOT HAS ICE DAMAGE AT WATERLINE. GATE BAY FLOOR

MN BULKHEAD SLOT IS GOOD, EXCEPT ICE DAMAGE AT WATERLINE.

BLOCK 4 THRU 7 ARE ALL IN GOOD CONDITION. FLOOR IS SAME.

BLOCK 3 IS MISSING TOP STEP. FLOOR HAS 1/4" EROSION.

BLOCKS 1 AND 2 ARE IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

WATERLINE. DIVER CANNOT REACH GATE DUE TO STRONG CURRENT.

WI BULKHEAD SLOT HAS 1/2" EROSION IN IT AND ICE DAMAGE AT

MN BULKHEAD SLOT HAS ICE DAMAGE AT WATERLINE.

BLOCK 7 IS IN GOOD CONDITION. FLOOR HAS 1/4"-1/2" EROSION.

EROSION.

BLOCKS 3 THRU 6 ARE MISSING TOP STEP. FLOOR HAS 1/4"-1/2"

EROSION.

BLOCK 2 IS MISSING 1/4 OF WI SIDE OF BLOCK. FLOOR HAS 1/4"-1/2"

BLOCK 1 IS IN GOOD CONDITION. FLOOR HAS 1/4" EROSION.

CANNOT REACH GATE DUE TO STRONG CURRENT.

WI BULKHEAD SLOT IN GOOD CONDITION, NORMAL WEAR. DIVER

BAFFLE BLOCKS AND GATE BAY DATA FOR TAINTER GATES

BAFFLE BLOCKS - SET NO. 7 BAFFLE BLOCKS - SET NO. 8 BAFFLE BLOCKS - SET NO. 9 BAFFLE BLOCKS - SET NO. 10

BAFFLE BLOCKS - SET NO. 11

BAFFLE BLOCKS - SET NO. 12 BAFFLE BLOCKS - SET NO. 13

BAFFLE BLOCKS - SET NO. 14

BAFFLE BLOCKS - SET NO. 15

BAFFLE BLOCKS - SET NO. 16 BAFFLE BLOCKS - SET NO. 17

BAFFLE BLOCKS - SET NO. 18

BAFFLE BLOCKS - SET NO. 19

BAFFLE BLOCKS - SET NO. 20

BAFFLE BLOCKS - SET NO. 21 BAFFLE BLOCKS - SET NO. 22

BAFFLE BLOCKS - SET NO. 23

BAFFLE BLOCKS - SET NO. 24 BAFFLE BLOCKS - SET NO. 25 BAFFLE BLOCKS - SET NO. 26

BAFFLE BLOCKS - SET NO. 27 BAFFLE BLOCKS - SET NO. 28

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FIGURE 31

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

NOTE: NUMO = DEPTH (SOUNDING) FROM PNEUMO GAGE USED FOR MONITORING DIVERS DEPTH.

ARE ALSO HERE. NUMO AT WALL = 19'. FLOOR IS 12"-18" ROCK.

15. BULKHEAD SLOT CONCRETE IS GOOD. WALL IS ALL CONCRETE HERE, IN GOOD CONDITION. INTAKES

SAND IN BETWEEN.

12"-18" ROCK. NUMO 30' FROM WALL = 22'. FLOOR HERE IS 12"-15" ROCK, WITH SMALLER ROCK AND

NUMO AT WALL = 17.5'. FLOOR HAS 12"-18" ROCK. NUMO 15' FROM WALL = 20'. FLOOR HERE IS SAME

SHAPE HERE, BUT CROSS TIMBERS STILL HAVE EXPOSED BARS. CONCRETE WALL STARTS AFTER THIS.

14. BOTTOM AND SECOND CRIBS ARE FULL. THIRD CRIB HAS 4' VOID. US/DS TIMBERS ARE IN BETTER

AT WALL = 17'. FLOOR HAS 12"-18" ROCK.

ROCK. TIMBERS ARE WORN HERE AS WELL. CROSS TIMBERS HAVE SAME EXPOSED BARS. NUMO

13. BOTTOM CRIB IS FULL. SECOND CRIB HAS 1' VOID. THIRD CRIB HAS 9' VOID, BUT DIVER CAN FEEL

FLOOR HERE IS 2"-6" ROCK AND SAND. SOME LARGER 18" ROCK IS SCATTERED.

NUMO 15' FROM WALL = 21'. FLOOR IS 15"-18" ROCK WITH SOME SAND. NUMO 30' FROM WALL = 22'.

THE WOOD ARE. ALSO EXPOSED BARS IN TIMBERS. NUMO AT WALL = 17'. FLOOR HAS 15"-18" ROCK.

SOME ROCKS IN HERE, BUT NOT MUCH. TIMBERS ARE WORN ABOUT 2", CAN SEE WHERE KNOTS IN

12. BOTTOM CRIB HAS 1' VOID. SECOND CRIB HAS 2' VOID. THIRD CRIB HAS 11' VOID. DIVER CAN FEEL

MOSTLY 8"-12" ROCK.

WORN (1"-2" WEAR) HERE WITH SOME EXPOSED REBAR. NUMO AT WALL = 16'. FLOOR IS

11. BOTTOM AND SECOND CRIB ARE FULL. THIRD CRIB HAS A 6' VOID. TIMBERS ARE MORE

FROM WALL = 23'. FLOOR HERE HAS 12" ROCK AND SAND.

WALL = 20'. FLOOR HAS 15"-18" ROCK WITH SOME SMALLER ROCK AND SAND. NUMO 30'

ARE IN OK CONDITION. NUMO AT WALL = 17'. FLOOR HAS 12"-15" ROCK. NUMO 15' FROM

10. BOTTOM CRIB HAS 1' VOID. SECOND CRIB HAS A 2' VOID. THIRD CRIB HAS A 6' VOID. TIMBERS

AT WALL = 17'. FLOOR HAS 15"-18" ROCK.

9. BOTTOM CRIB HAS 1' VOID. SECOND CRIB HAS A 2' VOID. THIRD CRIB HAS A 5' VOID. NUMO

MOSTLY SAND WITH SOME 15" ROCK.

12"-15" ROCK WITH A LITTLE MORE SAND. NUMO 30' FROM WALL = 22'. FLOOR HERE IS

FLOOR HAS 12" ROCK WITH SAND IN BETWEEN. NUMO 15' FROM WALL = 20'. FLOOR HAS

IS BUMPING ROCKS. CROSS TIMBERS HAVE EXPOSED REBARS. NUMO AT WALL = 17'.

8. BOTTOM CRIB IS FULL. SECOND CRIB HAS 1' VOID. THIRD CRIB HAS 8.5' VOID, BUT DIVER

IN OK CONDITION. NUMO AT WALL = 16'. FLOOR HAS 12"-18" ROCK.

7. BOTTOM AND SECOND CRIB BOTH HAVE 1' VOIDS. THIRD CRIB HAS 4' VOID. TIMBERS ARE

MOSTLY SAND WITH SOME 12" ROCK SCATTERED.

12"-15" ROCK WITH SAND IN BETWEEN. NUMO 30' FROM WALL = 20'. FLOOR HERE IS

NUMO AT WALL = 16'. FLOOR HAS 12" ROCK. NUMO 15' FROM WALL = 20'. FLOOR HERE IS

6. BOTTOM, SECOND AND THIRD CRIBS ALL HAVE 1' VOIDS. TIMBERS ARE IN OK CONDITION.

NUMO AT WALL = 16'. FLOOR HAS 12" ROCK WITH SAND. SOME LARGER ROCK SCATTERED.

5. BOTTOM, SECOND AND THIRD CRIBS ALL HAVE 1' VOIDS. TIMBERS ARE IN OK CONDITION.

WITH SOME 6"-12" ROCK SCATTERED.

ROCK WITH SAND IN BETWEEN. NUMO 30' FROM WALL = 21'. FLOOR HERE IS MOSTLY SAND,

NUMO AT WALL = 15'. FLOOR HERE IS 12" ROCK. NUMO 15' FROM WALL = 20'. FLOOR IS 8"-12"

SMALL GAP BETWEEN TIMBER AND CONCRETE, BUT FEELS LIKE IT WAS FORMED THAT WAY.

4. BOTTOM CRIB HAS 1' VOID. SECOND CRIB HAS 3' VOID, BUT CAN FEEL ROCKS. THERE IS A

NUMO AT WALL = 16'. FLOOR IS 8"-12" ROCK WITH SAND.

3. BOTTOM CRIB IS FULL. SECOND CRIB HAS 3' VOID. TIMBERS ARE PITTED, BUT OK CONDITION.

MOSTLY SAND, SOME 8"-10" ROCK.

FLOOR HERE IS 12"-15" ROCK WITH SAND. NUMO 30' FROM WALL = 21'. FLOOR HERE IS

NUMO AT WALL = 16'. FLOOR IS SAND WITH SOME 8"-10" ROCKS. NUMO 15' FROM WALL = 19'.

2. BOTTOM CRIB HAS 1' VOID. SECOND CRIB HAS 3' VOID, BUT DIVER CAN STILL FEEL ROCKS.

BETWEEN 1 & 2 FLOOR IS MOSTLY SAND WITH 8" ROCK. TIMBERS ARE PITTED.

PLUGGED WITH GRASS. DIVER CLEARED PIPE.

FLOOR HERE HAS 1'-2' ROCK WITH SAND. DIVER ALSO CHECKED GAGE PIPE WHICH WAS

1. DIVER CAN ONLY FEEL 1 CRIB WHICH HAS 1' VOID. TIMBERS ARE PITTED. NUMO AT WALL = 14'.

CHANNEL. FLOOR HERE IS MAINLY SAND WITH 8"-10" ROCK. NUMO HERE = 17'.

IS STILL 3'-4' ROCK WITH SAND. NUMO HERE = 11'. FROM HERE, DIVER MOVES TOWARD

A. 3'-4' ROCKS AT END OF WALL. NUMO 15' FROM WALL = 12'. 30' FROM END OF WALL, FLOOR

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NOTE: NUMO = DEPTH (SOUNDING) FROM PNEUMO GAGE USED FOR MONITORING DIVERS DEPTH.

15. NUMO ON APRON = 17'. CONCRETE WALL IS GOOD.

BUMPING ROCKS. NUMO AT WALL = 17'. FLOOR IS CONCRETE HERE.

14. BOTTOM CRIB HAS 1' VOID. 2ND AND 3RD CRIBS HAVE 2' VOIDS. 4TH CRIB HAS 8' VOID, BUT DIVER IS

IS 1'. AT I-WALL, APRON/SILL IS COVERED WITH ROCK. 2'-4' ROCK IS AGAINST APRON ALL THE WAY ACROSS.

ACROSS, EXPOSURE IS 12"-18". 1/2 WAY ACROSS, EXPOSURE IS 4". 3/4 OF THE WAY ACROSS, EXPOSURE

APRON/SILL FOUND BETWEEN 13 & 14. STARTING AT LANDWALL SILL IS 2"-6" EXPOSED. ABOUT 1/4 WAY

FLOOR HERE HAS 24"-30" ROCKS. NUMO 30' FROM WALL = 17'. FLOOR REMAINS THE SAME.

ARE IN OK CONDITION. NUMO AT WALL = 18'. FLOOR HAS SOME 3' ROCKS HERE. NUMO 15' FROM WALL = 17'.

13. BOTTOM CRIB HAS 2' VOID. 2ND CRIB HAS 4' VOID. 3RD CRIB HAS 2' VOID. 4TH CRIB HAS 1' VOID. TIMBERS

STICKING UP 1' FROM WALL. NUMO AT WALL = 18'. FLOOR HERE IS 12"-18" ROCK.

4TH CRIB HAS 3' VOID. TIMBERS ARE IN FAIR CONDITION. THERE IS A PIECE OF SHEET PILING THAT IS

12. BOTTOM CRIB HAS 2' VOID. 2ND CRIB HAS 3' VOID. 3RD CRIB HAS 6' VOID, BUT DIVER IS BUMPING ROCKS.

FLOOR HERE IS MORE SAND THAN ROCK.

NUMO 15' FROM WALL = 20'. FLOOR HERE IS 12" ROCK WITH SOME SAND. NUMO 30' FROM WALL = 22'.

ARE IN FAIR CONDITION, BUT CROSS TIMBERS ARE POOR. NUMO AT WALL = 17'. FLOOR IS 12"-18" ROCK.

11. BOTTOM AND 2ND CRIBS HAVE 1' VOIDS. 3RD CRIB HAS A 2' VOID. 4TH CRIB HAS 5' VOID. US/DS TIMBERS

FAIR CONDITION. NUMO AT WALL = 16'. FLOOR HAS 12"-18" ROCK ALONG THE WALL.

10. BOTTOM AND 2ND CRIBS HAVE 1' VOIDS. 3RD CRIB HAS 1.5' VOID. 4TH CRIB HAS 5' VOID. TIMBERS ARE IN

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FIGURE 30

FLOOR HERE IS MOSTLY SAND.

15' FROM WALL = 21'. FLOOR HERE HAS 12" ROCK WITH A LITTLE MORE SAND. NUMO 30' FROM WALL = 23'.

FAIR CONDITION. NUMO AT WALL = 17'. FLOOR HAS 12"-18" ROCK WITH SOME SAND IN BETWEEN. NUMO

9. BOTTOM CRIB HAS 1' VOID. 2ND AND 3RD CRIBS HAVE 2' VOIDS. 4TH CRIB HAS 4' VOID. TIMBERS ARE IN

SOME 6" ROCK HERE AND THERE.

LITTLE ROCK HERE. TIMBERS ARE IN FAIR CONDITION. NUMO AT WALL = 17'. FLOOR HAS 12"-24" ROCK, WITH

8. BOTTOM AND 2ND CRIBS HAVE 1.5' VOIDS. 3RD CRIB HAS 2' VOID. 4TH CRIB HAS 10'+ VOID. DIVER CAN FEEL

FLOOR IS THE SAME. NUMO 30' FROM WALL = 21'. FLOOR IS 24" ROCK WITH A LITTLE MORE SAND.

NUMO AT WALL = 16'. FLOOR IS 18" ROCK WITH SOME SAND IN BETWEEN. NUMO 15' FROM WALL = 18'.

7. BOTTOM, 2ND AND 3RD CRIBS HAVE 2' VOIDS. 4TH CRIB HAS 5' VOID. TIMBERS ARE IN OK CONDITION.

NUMO AT WALL = 15'. FLOOR HAS 24" ROCK UP TO TIMBERS.

BUMPING ROCKS. TIMBERS ARE STILL THE SAME, US/DS ARE IN OK CONDITION, CROSS TIMBERS ARE POOR.

6. BOTTOM CRIB HAS 1' VOID. 2ND AND 3RD CRIBS HAVE 1.5' VOIDS. 4TH CRIB HAS 7' VOID, BUT DIVER IS

SAND WITH SOME SMALLER ROCKS.

HERE IS 12" ROCK WITH SOME SAND IN BETWEEN. NUMO 30' FROM WALL = 20'. FLOOR HERE IS MORE

BUMPING ROCKS. NUMO AT WALL = 15'. FLOOR HAS 18"-24" ROCK. NUMO 15' FROM WALL = 18'. FLOOR

5. BOTTOM CRIB HAS 1' VOID. 2ND CRIB HAS 2' VOID. 3RD AND 4TH CRIBS HAVE 5' VOIDS, BUT DIVER IS

12"-18" ROCK UP TO TIMBERS.

IS HITTING FEW ROCKS HERE. TIMBERS SAME CONDITION AS #3. NUMO AT WALL = 16.5'. FLOOR HAS

4. BOTTOM CRIB HAS 1.5' VOID. 2ND CRIB HAS 2' VOID. 3RD CRIB HAS 3' VOID. 4TH CRIB HAS 8.5' VOID. DIVER

NUMO 30' FROM WALL = 23'. FLOOR HERE IS SANDY WITH 6" ROCKS, SOME LARGER ROCKS SCATTERED.

= 15'. FLOOR IS 18" ROCK WITH SAND IN BETWEEN. NUMO 15' FROM WALL = 18'. FLOOR HERE IS THE SAME.

BUMPING ROCKS. US/DS TIMBERS ARE IN FAIR CONDITION. CROSS TIMBERS ARE POOR. NUMO AT WALL

3. BOTTOM CRIB HAS 1' VOID. 2ND AND 3RD CRIBS HAVE 2' VOIDS. 4TH CRIB HAS A 7' VOID, BUT DIVER IS

FLOOR IS 18"-24" ROCK UP TO WALL.

FEEL ROCKS TOWARD THE BACK OF CRIB. TIMBERS ARE IN GOOD CONDITION. NUMO AT WALL = 16'.

2. BOTTOM AND 2ND CRIB HAVE 1.5' VOIDS. 3RD CRIB HAS 1' VOID. 4TH CRIB HAS A 6' VOID. DIVER CAN ONLY

THOUGH WITH A FEW ROCKS. DIVERS ALSO CHECKED THE GAGE PIPE AND CLEARED IT.

GAGE HOUSE: DIVERS DID NOT LOCATE PREVIOUS HOLE IN SAND NEAR GAGE HOUSE. FLOOR IS SAND

AND SAND. NUMO 30' FROM WALL = 18'. FLOOR HERE IS MOSTLY SAND WITH SCATTERED ROCK.

AT CRACK = 15'. FLOOR IS 18"-24" ROCK AND SAND. NUMO 15' DS OF END OF WALL = 18'. FLOOR IS 24" ROCK

5' VOID. CRACK IN WALL EXTENDS TO FLOOR, 3" WIDE AT FLOOR AND 5"-6" WIDE AT TOP. NUMO AT WALL

JUST EAST OF CURVE NEAR CRACK: BOTTOM CRIB HAS 6" VOID. 2ND CRIB HAS 2' VOID AND 3RD CRIB HAS

WELL, THAT GOES US/DS OF END OF WALL.

ARE OK. NUMO AT WALL = 16'. FLOOR HAS 18"-24" ROCK HERE. THERE IS A PIECE OF SHEET PILING HERE AS

WALL, BOTTOM AND 2ND CRIB HAVE 1' VOIDS. 3RD CRIB HAS 3' VOID AND 4TH CRIB HAS A 4' VOID. TIMBERS

1. LOWER GUIDE WALL EXTENSION TO LAND: CRIBBING STARTS ABOUT 3' BELOW WATER LINE. AT CURVE IN

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UPSTREAM SIDE AUXILIARY LOCK GATES

IS BUILT UP. NUMO ON TOP OF MUCK HERE = 18’.

CORNER OF RIVERWALL GATE, LOG AND BRUSH DEBRIS

GATE, NUMO = 19’ (ON CONCRETE FLOOR). IN

THE TWO GATES. IN MIDDLE OF THE RIVERWALL

GATES, NUMO = 19’. SMALL OPENING BETWEEN

TOP OF MUCK = 18’. IN THE MIDDLE OF THE

THE CENTER OF THE I-WALL GATE, NUMO ON

NUMO THERE ON TOP OF MUCK IS 17’. TOWARDS

BUILT UP IN THE CORNER NEAR THE I-WALL.

IN GREAT SHAPE. LOG AND BRUSH DEBRIS IS

STEEL OVER ENTIRE UPSTREAM SIDE OF GATES

DOWNSTREAM SIDE AUXILIARY LOCK GATES

= 8’.

RIVERWALL IS A LOT OF SILT AND MUCK. NUMO HERE

GATE AND CONCRETE. AT CORNER OF GATE AND

ANOTHER SMALL LEAK 5’-6’ FROM RIVERWALL, BETWEEN

RIVERWALL GATE, NUMO = 9’ ON TOP OF MUCK.

HAVE FLOW BETWEEN THEM. IN THE CENTER OF THE

OF THE TWO GATES NUMO = 10.5’. THE TWO GATES

OF THE I-WALL GATE, NUMO = 11’. IN THE MIDDLE

BETWEEN GATE AND CONCRETE. TOWARDS THE CENTER

= 10’. ABOUT 5’-6’ FROM I-WALL, SMALL LEAKS

ARE IN THE CORNER NEAR THE I-WALL. NUMO HERE

IS IN GOOD CONDITION. MUCK AND ZEBRA MUSCLES

STEEL OVER ENTIRE DOWNSTREAM SIDE OF GATES

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FIGURE 31

12 AND 13.

FEEL ROCK ON BOTH SIDES. FLOOR IS ALL RIPRAP, NO SAND. FLOOR REMAINS THE SAME BETWEEN

12. BOTTOM CRIB IS FULL. SECOND CRIB HAS 1’ VOID. THIRD CRIB HAS A 7’ VOID, BUT DIVER CAN

BETWEEN 11 & 12 FLOOR HAS 12" ROCK WITH ZEBRA MUSCLES ALONG WALL.

SAME. NUMO 30’ OUT FROM WALL = 21’, FLOOR IS THE SAME.

FLOOR IS 8" ROCK WITH SAND, SOME ZEBRA SHELLS. NUMO 15’ OUT FROM WALL = 18’. FLOOR IS

11. BOTTOM AND SECOND CRIB ARE BOTH FULL. THIRD CRIB HAS 4.5’ VOID. NUMO AT WALL = 15’.

BETWEEN 10 & 11 FLOOR IS LARGER RIPRAP.

DIVER CAN FEEL ROCK. FLOOR IS SAME.

10. BOTTOM CRIB HAS 1.5’ VOID. SECOND CRIB ALSO HAS 1.5’ VOID. THIRD CRIB HAS A 5’ VOID, BETWEEN 9 & 10 FLOOR IS MOSTLY RIPRAP WITH SOME SAND.

30’ OUT FROM WALL = 20’. SAME ROCK AS BEFORE.

AT WALL = 16’. SAND AND RIPRAP ON FLOOR. NUMO 15’ FROM WALL = 20’. SMALL ROCK. NUMO

9. BOTTOM CRIB IS FULL. SECOND CRIB HAS A 1’ VOID. THIRD CRIB HAS A 2.5’ VOID. NUMO

BETWEEN 8 & 9 FLOOR IS SAND WITH 12"-18" ROCK. SOME ZEBRA MUSCLES.

8. BOTTOM CRIB IS FULL. SECOND AND THIRD CRIBBING BOTH HAVE A 6" VOID. FLOOR SAME.

BETWEEN 7 & 8 FLOOR IS 18" ROCK WITH SAND.

WITH 8" ROCK. NUMO 30’ OUT FROM WALL = 20’. FLOOR IS SAME HERE.

MIXED IN. NUMO AT WALL = 15’. NUMO 15’ OUT FROM WALL = 18’. FLOOR IS MOSTLY SAND

7. BOTTOM CRIB IS FULL. SECOND CRIB HAS A 2.5’ VOID. FLOOR IS MOSTLY RIPRAP WITH SAND

6. BOTTOM CRIB IS FULL. SECOND CRIB HAS A 2’ VOID. FLOOR IS 18" ROCK AND SAND.

BETWEEN 5 & 6 FLOOR IS MOSTLY SAND WITH SOME 8"-12" ROCK.

ROCK. NUMO AT 30’ OUT FROM WALL = 21’. FLOOR IS SAME.

SAND WITH SOME RIPRAP MIXED IN. NUMO 15’ FROM WALL = 19’. FLOOR IS SAND WITH 4" SIZE

5. BOTTOM CRIB IS FULL. SECOND CRIB HAS AN 18" VOID. NUMO AT WALL = 15’. FLOOR IS MOSTLY

BETWEEN 4 & 5 FLOOR SAME AS AT 4.

4. BOTTOM AND TOP CRIBBING BOTH HAVE A 6" VOID. FLOOR IS SAND AND SOME 18" ROCK.

BETWEEN 3 & 4 FLOOR HAS 8"-12" SIZE ROCK & SAND.

OUT FROM WALL = 21.5’, FLOOR IS SAME.

AT WALL = 15’. NUMO 15’ FROM WALL = 18’ WITH FLOOR BEING SAND AND ROCK. NUMO 30’

3. BOTTOM CRIB IS FULL. TOP CRIB HAS A 4’-5’ VOID, BUT DIVER CAN STILL FEEL ROCK. NUMO

2. BOTTOM CRIB AND TOP CRIB ARE FULL OF ROCK. FLOOR IS MOSTLY SAND WITH SOME 8" ROCK.

BETWEEN 1 & 2 FLOOR IS MOSTLY SAND WITH 8" ROCK.

SIZE ROCK SCATTERED AROUND WITH SAND.

DOWN TOWARDS NUMO SITE. NUMO AT 30’ OUT FROM WALL = 18’. FLOOR AT NUMO HAS 3"

CRIB HAS ROCK UP TOP - NO VOIDS, UNDERMINING, SCOUR OR EROSION. FLOOR SLOPES

1. NUMO READING AT WALL = 12’. 1’ SIZE ROCK WITH SAND BETWEEN ON FLOOR AT WALL.

NUMO 30’ OUT FROM END OF WALL = 12’.

A. NUMO AT END OF WALL = 12.5’. RIPRAP AND BOULDERS ARE LOCATED AT END OF WALL.

DO NOT NEED TO GO THIS FAR.

17. THERE IS NO SILL HERE. DIVER DID FIND SOME ZEBRA MUSCLES AND A CATFISH. NEXT INSPECTION,

16. NUMO AT WALL = 17’.

OF THE WAY TO I-WALL, EXPOSED SILL IS 3’-1.5’-FLUSH AT WALL.

IS 1’- 3’ OF EXPOSED SILL. TO 75’ FROM LANDWALL, THERE IS 3’-3.5’ EXPOSED SILL. THE REST

TO 25’ FROM LANDWALL, THERE IS 8"-1’ OF EXPOSED SILL. TO 50’ FROM LANDWALL, THERE

SILL IS LOCATED BETWEEN 15 & 16. STARTING ON THE LANDWALL, ROCK IS FLUSH WITH WALL.

FLOOR HERE IS SAME.

15’ OUT FROM WALL = 20’, ROCK WITH SAND AND ZEBRA SHELLS. NUMO 30’ OUT FROM WALL = 22’.

15. BULKHEAD SLOT CONCRETE IS GOOD. NUMO AT WALL = 19’. FLOOR IS ALL RIPRAP SIZE ROCK. NUMO

CONCRETE WALL STARTS AFTER THIS.

14. BOTTOM CRIB IS FULL. SECOND AND THIRD CRIB HAS A 3’ VOID. FLOOR REMAINS THE SAME.

14 IS STILL MOSTLY RIPRAP, LITTLE SAND.

FLOOR SAME. NUMO 30’ FROM WALL = 20’, FLOOR SAME BUT WITH SOME SAND. FLOOR BETWEEN 13 &

FEEL SOME ROCK. NUMO AT WALL = 16’. FLOOR IS 1.5’ ROCK. NUMO 15’ OUT FROM WALL = 17’,

13. BOTTOM CRIB HAS 2’ VOID. SECOND CRIB IS FULL. THIRD CRIB HAS 6’-7’ VOID, BUT DIVER CAN

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US Army Corps of Engineers

St. Paul District

Sheet reference number:

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V e r t ic a l C o o r d in a t e

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Sheet of

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16. CONCRETE WALL IS GOOD.

15. NUMO ON APRON = 16’. CONCRETE WALL IS GOOD.

THERE IS A PILE OF CONCRETE ON FLOOR HERE, POSSIBLY FROM THE TOP THE WALL REPAIR.

14. BOTTOM CRIB HAS 1’ VOID, 2ND CRIB HAS 1’ VOID, 3RD CRIB HAS 3’ VOID, AND 4TH CRIB HAS 6’+ VOID.

VOID STARTS AT 1.5’ AND AT 40’ FROM RIVERWALL, THE VOID IS 6’+.

TO 3"-6" EXPOSURE AT I-WALL. A VOID UNDER THE CONCRETE SLAB STARTS ABOUT 10’ OFF THE I-WALL. THE

TO 3’ AT CENTER OF SILL. ABOUT 75’ FROM LANDWALL, SILL IS EXPOSED 5’ AND GRADUALLY TAPERS BACK

SILL FOUND BETWEEN 13 & 14. STARTING AT LANDWALL SILL IS 4"-8" EXPOSED. EXPOSURE GRADUALLY GOES

NUMO 15’ FROM WALL = 18’. FLOOR SAME. NUMO 30’ FROM WALL = 19’. FLOOR SAME.

CRIB HAS 2.5’ VOID, AND 6TH CRIB HAS 6’+ VOID. NUMO AT WALL = 17’. FLOOR IS SAND AND SMALL ROCK.

13. BOTTOM CRIB HAS 1’ VOID, 2ND CRIB HAS 1’ VOID, 3RD CRIB HAS 1’ VOID, 4TH CRIB HAS 1.5’ VOID, 5TH

PILING THAT IS STICKING UP 1’ FROM WALL.

5TH CRIB HAS 4’ VOID. FLOOR HAS LARGE AND MEDIUM ROCKS, SOME ZEBRAS. THERE IS A PIECE OF SHEET

12. BOTTOM CRIB HAS 1’ VOID, 2ND CRIB HAS 1’ VOID, 3RD CRIB HAS 1’ VOID, 4TH CRIB HAS 4’ VOID, AND

LOWER GUIDE WALL

LG-49 LG-48 LG-47 LG-46 LG-45 LG-44 LG-43 LG-42 LG-41 LG-40 LG-39 LG-38LG-50 L-33L-34L-35L-36L-37

R-75 R-74 R-73 R-72

CLPINTLE=STA.2+55.0B

B 2

SCALE IN FEET

030 30 60

FLOW

1615141312111098765432

FIGURE 30

30’ FROM WALL = 20’. FLOOR , DERRICK STONE AND SAND.

NUMO AT WALL = 14’. FLOOR 1’ SIZE ROCK. NUMO 15’ FROM WALL = 18’. FLOOR SAND, MINOR ROCKS. NUMO

11. BOTTOM CRIB HAS 1’ VOID, 2ND CRIB HAS 1.5’ VOID, 3RD CRIB HAS 2’ VOID, AND 4TH CRIB HAS 6’+ VOID.

FLOOR HAS 2’ SIZE ROCK ALONG THE WALL.

10. BOTTOM CRIB HAS 6" VOID, 2ND CRIB HAS 6" VOID, 3RD CRIB HAS 2.5’ VOID AND 4TH CRIB HAS 6’+ VOID.

WALL = 20’. FLOOR HERE IS MOSTLY SAND AND ZEBRAS.

VOID. NUMO AT WALL = 15’. ROCKS AND SAND. NUMO 15’ FROM WALL = 19’. FLOOR SAME. NUMO 30’ FROM

9. BOTTOM CRIB HAS 1.5’ VOID, 2ND CRIB HAS 2’ VOID, 3RD CRIB HAS 3’ VOID AND 4TH CRIB HAS 6’+

VOID. DIVER CAN FEEL SOME ROCK IN 4TH CRIB. FLOOR IS MOSTLY 1.5’ ROCK WITH SOME ZEBRA SHELLS.

8. BOTTOM CRIB HAS 2’ VOID, 2ND CRIB HAS 1.5’ VOID, 3RD CRIB HAS 2.5’ VOID AND 4TH CRIB HAS 6’+

MIXED ROCK AND ZEBRA SHELLS.

ROCK. NUMO 15’ FROM WALL = 16’. FLOOR HERE IS SAME. NUMO 30’ FROM WALL = 19’. FLOOR IS

VOID. DIVER CAN FEEL SOME ROCK IN THE 4TH CRIB. NUMO AT WALL = 15’. FLOOR IS MOSTLY 1.5’ DIA.

7. BOTTOM CRIB HAS 2.5’ VOID, 2ND CRIB HAS 1’ VOID, 3RD CRIB HAS 1.5’ VOID, AND 4TH CRIB HAS 6’+

VOID. DIVER CANNOT FEEL MUCH ROCK IN 4TH CRIB. FLOOR HERE IS RIPRAP AND SAND, SOME ZEBRAS.

6. BOTTOM CRIB HAS 1’ VOID, 2ND CRIB HAS 2’ VOID, 3RD CRIB HAS 2.5’ VOID, AND 4TH CRIB HAS 6’+

= 18’. FLOOR NOW IS VARIOUS SIZE ROCK AND SAND.

FLOOR IS 1.5’-2’ ROCK. NUMO 15’ FROM WALL = 16’. FLOOR REMAINS THE SAME. NUMO 30’ FROM WALL

5. BOTTOM CRIB HAS 1’ VOID, 2ND CRIB HAS 1’ VOID, AND 3RD CRIB HAS 6’ VOID. NUMO AT WALL = 13’.

ZEBRA SHELLS.

VOID, BUT DIVER CAN FEEL SOME ROCK. FLOOR IS MOSTLY 1.5’-2’ ROCK WITH MINIMAL SAND. SOME

4. BOTTOM CRIB HAS 1’ VOID, 2ND CRIB HAS 1’ VOID, 3RD CRIB HAS 2’ VOID, AND 4TH CRIB HAS 6’-7’

FLOOR SAME. NUMO AT 30’ OUT FROM WALL = 21’. FLOOR SAME.

VOID. NUMO AT WALL = 14’, 1.5’ DIAMETER ROCK AND SAND ON FLOOR. NUMO AT 15’ FROM WALL = 17’.

3. BOTTOM CRIB HAS 1’ VOID, 2ND CRIB HAS 1’ VOID, 3RD…