Plans2_22040.pdf
PDF 6 MB Posted
- Attached to
- 751/22040. BDW; Petobego Dam Removal
- Solicitation number
- RFQ 171 260000000422 2
- Issued by
- Grand Traverse County, Michigan
About this file
This file contains engineering plans and drawings for the Petobego Dam removal and stream restoration project in Grand Traverse County, Michigan, involving the Michigan Department of Natural Resources and private property owners. The project scope includes complete removal of the existing Petobego Dam structure, including sheet pile, control structure with wingwalls, concrete abutments, and all associated debris (steel, concrete, and non-natural materials), with all excavated material to be hauled offsite. The contractor must submit a work plan outlining demolition sequence and water control measures for approval before commencing work. The project also involves stream restoration through installation of rock weir structures with pools and riffles, rounded aggregate-lined stream channels, and site stabilization including topsoil placement, seeding, and mulching on access roads and spoil disposal areas. Construction notes require contractor notification to the engineer and Michigan Department of Natural Resources one week prior to work commencement, coordination with property owners, installation of snow fence to identify disturbance limits, turbidity curtain installation for partial-width construction, and adherence to specified limits of disturbance shown on the plans.
The plans establish specific elevation and location requirements for the work, including ordinary high water marks (downstream at 594.80, upstream at 598.20), 100-year floodplain elevation at 596.30, and benchmark reference points. Access drive protection requires six inches of 21AA stone placed on the existing access drive, with four inches of topsoil added upon project completion. The contractor bears responsibility for obtaining a Michigan Department of Transportation permit for working within MDOT right-of-way for staging or laydown areas. Spoil from dam removal is designated for disposal in a previously disturbed area that will be leveled, seeded, and mulched upon completion. Stream cross-sections show mixed rock materials specified as equal volumes of MDOT heavy riprap, plain riprap, three-inch by one-inch course aggregate, and 21A stone, with rounded aggregate-lined channels featuring a D50 of one inch for the twelve-inch thick lining.
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Other files
| File | Type | Posted |
|---|---|---|
| Advertisement_22040.pdf | ||
| Plans1_22040.pdf | ||
| Specs_22040.pdf | ||
| Addendum_1_22040.pdf | ||
| Service Disabled Veteran Owned Business Info Sheet 2025.pdf |
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Text version
US
EDGE GRAVEL
ACCESS
BM200
REMOVE DAM AND CONTROL
STRUCTURE. INCLUDING FULL
DEPTH CONCRETE AND
SHEETPILING
CLEAR AND GRADE EMBANKMENT TO
MATCH ADJACENT GROUND.
SALVAGE EXCESS TOPSOIL.
01-004-009-30
TELGENHOF, G & B
01-004-005-00
MI DEPT OF NATURAL
RESOURCES
FLOW
PREVIOUSLY DISTURBED AREA.
AREA TO BE USED FOR SPOIL
DISPOSAL FROM DAM REMOVAL. 01-004-005-00
MI DEPT OF NATURAL
RESOURCES
DELINEATED
WETLAND
BOUNDARY
DELINEATED
WETLAND
BOUNDARY
PARCEL BOUNDARY
EXISTING
PETOBEGO DAM
STRUCTURE
DOWNSTREAM
OHWM EL 594.80
NO. 01 STA 1+08
0+00
0+50
1+00
1+50
2+00
2+50
3+00
3+50
4+00
4+50
5+00
5+50 6+
6+
7+00
7+50
8+00
8+50 8+75
NO. 02 STA 7+86
UPSTREAM
OHWM EL 598.20
EXISTING ACCESS ROAD
APPROXIMATE
STAGING/LAYDOWN AREA
MDOT ROW
33.0'
MDOT ROW
75.0'
100 YR FLOODPLAIN
EL 612.00
0+
1+
2+
3+
4+
5+
6+
7+
8+
8+
HP EL
588.43
HP EL
590.06 HP EL
592.42
HP EL
592.54
HP EL
592.47
HP EL
592.83 HP EL
591.59
HP EL
590.89
EX PROFILE GRADE
HP EL
591.30
HP EL
592.75
HP EL
592.35
TOP OF BANK RIGHT
TOP OF BANK LEFT
N O
. 0
- S
TA
+0
- C
L O
F U
S -3
7' O
F
' S P
A N
X
' R
IS
E C
O N
C B
O X
C U
LV
S
TA
+0
- P
E
TO
B E
G O
P O
N D
N O
. 0
- S
TA
+8
- C
L P
E
TO
B E
G O
D A
M
TO
P O
F D
A M
A B
U
TM
E N
TS
R
T E
L
1.
LT
E
L
1.
EX HEADWALL
EX HEADWALL
DOWNSTREAM
OHWM EL 594.80
100 YR FLOODPLAIN
EL 612.00
UPSTREAM
OHWM EL 598.20
N
0 603015
BENCHMARKS
BM 200 - SET 60D SPIKE, EAST SIDE OF 12" TWIN HEMLOCK.
HEMLOCK IN CENTER OF GRAVEL TURN-AROUND AT DAM.
EL 603.20
SECTION 5, T.28 N. - R.9 W.,
ACME TOWNSHIP,
GRAND TRAVERSE COUNTY, MICHIGAN
TOBECO CREEK
CONTRACTOR TO REMOVE THE FOLLOWING EXISTING ITEMS:
· SHEET PILE.
· CONTROL STRUCTURE W/ WINGWALLS.
· ANY CONCRETE ABUTMENTS OR OTHER BURIED STRUCTURES IN THE AREA OF
EXCAVATION OF THE PROPOSED IMPROVEMENTS. IN SUMMARY, COMPLETE
REMOVAL OF THE EXISTING STRUCTURE.
ALL DEBRIS TO BE HAULED OFFSITE. WHICH INCLUDES BUT NOT LIMITED TO ALL
STEEL, CONCRETE, AND NON-NATURAL MATERIALS AS PART OF THE ORIGINAL DAM
STRUCTURE. COST TO BE INCLUDED IN THE LUMP SUM PRICE BID FOR DEMOLITION.
ALL EXCAVATED NATIVE EARTH MATERIAL IS TO REMAIN ON-SITE. ALL FILL MATERIAL
IS TO BE SCREENED PRIOR TO PLACEMENT IN DESIGNATED AREA APPROVED BY
ENGINEER AND OWNER.
CONTRACTOR MUST SUBMIT WORK PLAN OUTLINING DEMOLITION SEQUENCE AND
WATER CONTROL MEASURES. WORK PLAN MUST BE APPROVED BY ENGINEER
BEFORE WORK MAY START.
CONTRACTOR IS RESPONSIBLE TO SECURE MDOT PERMIT FOR WORKING IN MDOT
ROW FOR STAGING OR LAY DOWN AREA.
DEMOLITION NOTES
LEGEND
- DELINEATED WETLAND BOUNDARY
PROFILE VIEW
SCALE: H: 1" = 100' V: 1" = 10'
EXISTING SITE PLAN
SCALE: 1" = 30'
EXISTING CROSS SECTION
SCALE: 1" = 30'
- CLEARING AND SALVAGING
- PARCEL BOUNDARY
- ORDINARY HIGH WATER (OHWM)
- 100 YR FLOODPLAIN
THE WORK REPRESENTED BY THIS DRAWING WAS DESIGNED BY THE ENGINEER FOR THIS
SPECIFIC APPLICATION AND SPECIFIC LOCATION DESCRIBED HEREON IN ACCORDANCE
WITH THE CONDITIONS PREVALENT AT THE TIME THE DESIGN WAS DONE. THE ENGINEER
DOES NOT GUARANTEE AND WILL NOT BE LIABLE FOR ANY OTHER LOCATION, CONDITION,
DESIGN OR PURPOSE.
BY MARK REVISIONS DATE
DE. BY:
DR. BY:
STDS.
SCALE
DATE
CH. BY:
APP. BY:
SHEET
FILE NO.
OF
PROJECT NO.
SAGINAW OFFICE
230 S. Washington Ave.
Saginaw, MI 48607 Tel. 989-754-4717 Fax. 989-754-4440 www.SpicerGroup.com
PETOBEGO DAM
GRAND TRAVERSE COUNTY, MICHIGAN
EXISTING SITE PLAN
& DEMOLITION PLAN
POC/WTM
CBS
WTM
WTM 132100SG2022
04 13
JULY, 2026
AS SHOWN DR-4344-04
DR
- PREVIOUS DISTURBED AREA
W/ PROPOSED CLEARING AND SALVAGING
NO. 01 - STA 1+08 - US 31
NO WORK
NO. 02 - STA 7+85 - MI DEPT OF NATURAL RESOURCES
REMOVE EXISTING DAM. INSTALL ROCK WEIR
STRUCTURE W/POOL/RIFFLE. SEE SHEET 06 FOR
PLAN AND PROFILE.
NOTES:
1. 100 YR FLOODPLAIN EL 596.30, DOWNSTREAM
OHWM EL 594.80, UPSTREAM OHMW 598.20.
2. 100 YR FLOODPLAIN WAS DETERMINED USING FEMA
FLOODPLAIN ZONE A LAYER AND EXISTING
CONTOUR INFORMATION.
3. OHWM WAS BASED OFF OF WATER SURFACE
ELEVATION COLLECTED ON 10-22-2022
- STAGING/LAYDOWN AREA
CBS ISSUED FOR PERMIT - REV 1 07/08/2026
P:
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4-
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P.
dw g, /3 0/
0:
:1
AM
, m ic ha el
.c ou rn ey
8'-0"
2% MAX SLOPE
NOTE: PRIOR TO COMPLETION OF PROJECT, 4" OF TOP SOIL SHALL BE PLACED ON ACCESS ROAD, SEEDED AND MULCHED.
PROTECTIVE ACCESS DRIVE DETAIL
NOT TO SCALE
EX ACCESS DRIVE
INSTALL 6" OF 21AA
STONE PROTECTION
UNDISTURBED
SUBGRADE
EX GRADE
EDGE GRAVEL
ACCESS
BM200
DELINEATED
WETLAND
BOUNDARY
DELINEATED WETLAND
BOUNDARY
100 YR FLOODPLAIN
EL 596.30
EXISTING
PETOBEGO DAM
STRUCTURE
SPOIL LEVELING DEPOSIT AREA.
AREA SHALL BE LEVELED,
SEEDED, AND MULCHED.
DOWNSTREAM OHWM
EL 594.80
US
01-004-009-30
TELGENHOF, G & B
01-004-005-00
MI DEPT OF NATURAL
RESOURCES
01-004-005-00
MI DEPT OF NATURAL
RESOURCES
0+00
0+50
1+00
1+50
2+00
2+50
3+00
3+50
4+00
4+50
5+00
5+50 6+
6+
7+00
7+50
8+00
8+50 8+75
UPSTREAM OHWM
EL 598.20
6" OF 21AA STONE
APPROXIMATELY 68 CYD
(SEE CONSTRUCTION NOTE 3)
6" OF 21AA STONE
APPROXIMATELY 69 CYD
(SEE CONSTRUCTION NOTE 3)
APPROXIMATE LIMITS OF
DISTURBANCE.
MDOT ROW
33.0'
MDOT ROW
75.0'
APPROXIMATE LIMITS OF
DISTURBANCE
100 YR FLOODPLAIN
EL 612.00
N
0 603015
BENCHMARKS
BM 200 - SET 60D SPIKE, EAST SIDE OF 12" TWIN HEMLOCK.
HEMLOCK IN CENTER OF GRAVEL TURN-AROUND AT DAM.
EL 603.20
SECTION 5, T.28 N. - R.9 W.,
ACME TOWNSHIP,
GRAND TRAVERSE COUNTY, MICHIGAN
TOBECO CREEK
LEGEND
- DELINEATED WETLAND BOUNDARY
PROPOSED SITE PLAN
SCALE: 1" = 30'
- APPROXIMATE ACCESS DRIVE PROTECTION
- SPOIL LEVELING DEPOSIT AREA
- PROPOSED STREAM RESTORATION
LIMITS
- PARCEL BOUNDARY
CONSTRUCTION NOTE
1. CONTRACTOR MUST NOTIFY ENGINEER AND MDNR 1 WEEK
PRIOR TO COMMENCING WORK ON-SITE.
2. CONTRACTOR MUST COORDINATE WITH ENGINEER PRIOR TO
ANY WORK TAKING PLACE ON TELGENHOF PROPERTY.
3. SNOW FENCE TO BE INSTALLED TO IDENTIFY LIMITS OF
DISTURBANCE. FENCE TO BE SECURED TO TREES WHERE
POSSIBLE. T-POST MAY BE USED AS DIRECTED BY ENGINEER.
4. ACCESS DRIVE PROTECTION SHALL BE 6" OF 21AA STONE TO
BE PLACED ON TOP OF EXISTING ACCESS DRIVE AS SHOWN
ABOVE. UPON COMPLETION OF THE PROJECT 4" OF TOP SOIL
TO BE PLACED ON TOP OF GRAVEL DRIVE, AND SHALL BE
SEEDED AND MULCHED.
5. CONTRACTOR MUST NOT WORK OUTSIDE OF LIMITS OF
DISTURBANCE SHOWN ON THIS PLAN SET.
6. CONTRACTOR SHALL INSTALL TURBIDITY CURTAIN FOR PARTIAL
WIDTH CONSTRUCTION. INSTALLATION SHALL BE DISCUSSED
DURING PRE CONSTRUCTION FIELD WALK W/ ENGINEER.
PARCEL BOUNDARY
- ORDINARY HIGH WATER (OHWM)
- 100 YR FLOODPLAIN
THE WORK REPRESENTED BY THIS DRAWING WAS DESIGNED BY THE ENGINEER FOR THIS
SPECIFIC APPLICATION AND SPECIFIC LOCATION DESCRIBED HEREON IN ACCORDANCE
WITH THE CONDITIONS PREVALENT AT THE TIME THE DESIGN WAS DONE. THE ENGINEER
DOES NOT GUARANTEE AND WILL NOT BE LIABLE FOR ANY OTHER LOCATION, CONDITION,
DESIGN OR PURPOSE.
BY MARK REVISIONS DATE
DE. BY:
DR. BY:
STDS.
SCALE
DATE
CH. BY:
APP. BY:
SHEET
FILE NO.
OF
PROJECT NO.
SAGINAW OFFICE
230 S. Washington Ave.
Saginaw, MI 48607 Tel. 989-754-4717 Fax. 989-754-4440 www.SpicerGroup.com
PETOBEGO DAM
GRAND TRAVERSE COUNTY, MICHIGAN
PROPOSED SITE PLAN
AND SESC PLAN
POC/WTM
CBS
WTM
WTM 132100SG2022
05 13
JULY, 2026
AS SHOWN DR-4344-05
DR
E6 E8
E6
E8
E9
E8 E9
S53
S61
E21
E1 - SESC MEASURE, PER "DTMB" SOIL EROSION
AND SEDIMENTATION CONTROL GUIDEBOOK
- ROUNDED AGGREGATE-LINED STREAM CHANNEL
- ROCK STRUCTURE
- SNOW FENCE / LIMITS OF
DISTURBANCE
NOTES:
1. 100 YR FLOODPLAIN EL 596.30, DOWNSTREAM
OHWM EL 594.80, UPSTREAM OHMW 598.20.
2. 100 YR FLOODPLAIN WAS DETERMINED USING FEMA
FLOODPLAIN ZONE A LAYER AND EXISTING
CONTOUR INFORMATION.
3. OHWM WAS BASED OFF OF WATER SURFACE
ELEVATION COLLECTED ON 10-22-2022
- STAGING/LAYDOWN AREA
E6
S53
S53
CBS ISSUED FOR PERMIT - REV 1 07/08/2026
TURBIDITY CURTAIN SHALL BE
INSTALLED (SEE CONSTRUCTION
NOTE 6 THIS SHEET)
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AM
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EXISTING
PETOBEGO DAM
STRUCTURE
DOWNSTREAM OHWM
EL 594.80
FLOW
01-004-009-30
TELGENHOF, G & B
01-004-005-00
MI DEPT OF NATURAL
RESOURCES
01-004-005-00
MI DEPT OF NATURAL
RESOURCES
TOBECO C
REEK
PROPOSED ROCK STRUCTURE A
CENTER EL 595.50
BANK TIE IN EL 597.00
PROPOSED ROCK STRUCTURE B
CENTER EL 594.50
BANK TIE IN EL 596.00
6+
7+00
7+50
8+00
8+50
UPSTREAM OHWM
EL 598.20
APPROXIMATE LIMITS OF
DISTURBANCE
PROPOSED STREAM CL
CONSTRUCT 4 FT WIDE
LOW FLOW NOTCH WITH
ELEVATION 595.50
CONSTRUCT 4 FT WIDE
LOW FLOW NOTCH WITH
ELEVATION 594.50
EX PROFILE GRADE
TOP OF BANK RIGHT
TOP OF BANK LEFT
6+
7+
8+
8+
HP EL
592.83
HP EL
592.29
HP EL
591.99
HP EL
592.35
N O
. 0
- S
TA
+8
- C
L P
E
TO
B E
G O
D A
M
TO
P O
F D
A M
A B
U
TM
E N
TS
R
T E
L
1.
LT
E
L
1.
HP EL
590.29
BACK POOL
EL = 592.80
BACK POOL
EL = 592.94
BOTTOM POOL
EL = 592.80
BOTTOM POOL
EL = 591.80
ROCK STRUCTURE A
EL = 595.50
ROCK WEIR STRUCTURE
W/POOL/RIFFLE
FL 592.94
UPSTREAM
OHMW EL 598.20
ROCK STRUCTURE B
EL = 594.50
DOWNSTREAM
OHMW EL 594.80
7+
100YR FLOODPLAIN
EL 612.00
N
0 20105
SECTION 05,T.28 N. - R.9 W.,
ACME TOWNSHIP,
GRAND TRAVERSE COUNTY, MICHIGAN
PROPOSED SITE PLAN
SCALE: 1" = 10'
BENCHMARKS
BM 200 - SET 60D SPIKE, EAST SIDE OF 12" TWIN HEMLOCK.
HEMLOCK IN CENTER OF GRAVEL TURN-AROUND AT DAM.
EL 603.20
CONSTRUCTION NOTE
1. SEE SHEET 04 FOR DAM REMOVAL PHASE AND EXISTING
CONDITION CROSS SECTION.
2. DURING EXCAVATION AND FILL TO PROPOSED STREAM BANK
EXISTING MATERIAL IS TO BE USED AS DIRECTED BY ENGINEER.
3. SEE SEEDING SPECIFICATION FOR REQUIRED NATIVE SEED MIX.
LEGEND
PR
O
PE
R
TY
L
IN
E
PROPERTY LINE
- DELINEATED WETLAND BOUNDARY
- ORDINARY HIGH WATER (OHWM)
NOTES:
1. 100 YR FLOODPLAIN EL 596.30, DOWNSTREAM
OHWM EL 594.80, UPSTREAM OHMW 598.20.
2. 100 YR FLOODPLAIN WAS DETERMINED USING FEMA
FLOODPLAIN ZONE A LAYER AND EXISTING
CONTOUR INFORMATION.
3. OHWM WAS BASED OFF OF WATER SURFACE
ELEVATION COLLECTED ON 10-22-2022
- TURBIDITY CURTAIN
THE WORK REPRESENTED BY THIS DRAWING WAS DESIGNED BY THE ENGINEER FOR THIS
SPECIFIC APPLICATION AND SPECIFIC LOCATION DESCRIBED HEREON IN ACCORDANCE
WITH THE CONDITIONS PREVALENT AT THE TIME THE DESIGN WAS DONE. THE ENGINEER
DOES NOT GUARANTEE AND WILL NOT BE LIABLE FOR ANY OTHER LOCATION, CONDITION,
DESIGN OR PURPOSE.
BY MARK REVISIONS DATE
DE. BY:
DR. BY:
STDS.
SCALE
DATE
CH. BY:
APP. BY:
SHEET
FILE NO.
OF
PROJECT NO.
SAGINAW OFFICE
230 S. Washington Ave.
Saginaw, MI 48607 Tel. 989-754-4717 Fax. 989-754-4440 www.SpicerGroup.com
PETOBEGO DAM
GRAND TRAVERSE COUNTY, MICHIGAN
PROPOSED
STREAM RESTORATION
POC/WTM
CBS
WTM
WTM 132100SG2022
06 13
JULY, 2026
AS SHOWN DR-4344-06
DR
OPEN CHANNEL PROFILE VIEW
SCALE: H: 1"=20' V: 1" =10'
- ROUNDED AGGREGATE-LINED STREAM CHANNEL
- ROCK STRUCTURE
CBS ISSUED FOR PERMIT - REV 1 07/08/2026
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7+91
0 10 20 30 40 500-10-20-30-40-50
7+70
0 10 20 30 40 500-10-20-30-40-50
7+49
0 10 20 30 40 500-10-20-30-40-50
8+45
0 10 20 30 40 500-10-20-30-40-50
6+55
0 10 20 30 40 500-10-20-30-40-50
8+11
0 10 20 30 40 500-10-20-30-40-50
SILL EL=591.36
EX FL EL 592.84
EX FL EL 592.15
EX FL EL 591.85
EX GRADE
EX GRADE
EX GRADE
G R
A V
E L
E D
G E
EX FL EL 591.43
EX GRADE
HP
EL 592.83
HP
EL 591.34
HP
EL 591.59
HP
EL 590.89
HP
EL 591.61
HP
EL 590.47
HP
EL 590.29
HP
EL 590.35
EX FL EL 591.01
EX GRADE
TOP WALL EL=597.01
TOP WALL EL=596.54 TOP WALL EL=596.60
TOP WALL EL=596.92
EX FL EL 592.56
EX GRADE
HP
EL 591.47
HP
EL 593.30
C L
TO
B
E C
O C
R E
E K
C L
TO
B
E C
O C
R E
E K
C L
TO
B
E C
O C
R E
E K
C L
TO
B
E C
O C
R E
E K
DOWNSTREAM
OHWM=594.80
DOWNSTREAM
OHWM=594.80
UPSTREAM
OHWM=598.20
UPSTREAM
OHWM=598.20
CUT 27.9 SQ FT
C L
TO
B
E C
O C
R E
E K
C L
TO
B
E C
O C
R E
E K
DOWNSTREAM
OHWM=594.80
UPSTREAM
OHWM=598.20
FILL 12.5 SQ FT
ROUNDED AGGREGATE
30.6 SQ FT
ROCK STRUCTURE
159.1 SQ FT
FILL 45.0 SQ FT
CUT 82.5 SQ FT
STRUCTURE REMOVAL
108.1 SQ FT
APPROXIMATE STRUCTURE
REMOVAL AND NATIVE FILL
105.7 SQ FT
EL 595.50
THE WORK REPRESENTED BY THIS DRAWING WAS DESIGNED BY THE ENGINEER FOR THIS
SPECIFIC APPLICATION AND SPECIFIC LOCATION DESCRIBED HEREON IN ACCORDANCE
WITH THE CONDITIONS PREVALENT AT THE TIME THE DESIGN WAS DONE. THE ENGINEER
DOES NOT GUARANTEE AND WILL NOT BE LIABLE FOR ANY OTHER LOCATION, CONDITION,
DESIGN OR PURPOSE.
BY MARK REVISIONS DATE
DE. BY:
DR. BY:
STDS.
SCALE
DATE
CH. BY:
APP. BY:
SHEET
FILE NO.
OF
PROJECT NO.
SAGINAW OFFICE
230 S. Washington Ave.
Saginaw, MI 48607 Tel. 989-754-4717 Fax. 989-754-4440 www.SpicerGroup.com
PETOBEGO DAM
GRAND TRAVERSE COUNTY, MICHIGAN
STREAM CROSS SECTIONS
STA 2+04 TO STA 8+10
POC/WTM
CBS
WTM
WTM 132100SG2022
07 13
JULY, 2026
1" = 10' DR-4344-07
DR
LEGEND
- CUT
- ROUNDED AGGREGATE LINE STREAM CHANNEL
- ROCK STRUCTURE
NOTES:
1. 100 YR FLOODPLAIN EL 596.30, DOWNSTREAM
OHWM EL 594.80, UPSTREAM OHMW 598.20.
2. 100 YR FLOODPLAIN WAS DETERMINED USING FEMA
FLOODPLAIN ZONE A LAYER AND EXISTING
CONTOUR INFORMATION.
3. OHWM WAS BASED OFF OF WATER SURFACE
ELEVATION COLLECTED ON 10-22-2022
- FILL
- STRUCTURE REMOVAL
- STRUCTURE REMOVAL AND NATIVE FILL
CBS ISSUED FOR PERMIT - REV 1 07/08/2026
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A
08B
08C
30°
TY
P
POOL
(ALL SIDE SLOPE 2:1)
POOL
(ALL SIDE SLOPE 2:1)
PROPOSED STREAM CLFLOW
ROUNDED AGGREGATE
12" THICK LINED STREAM CHANNEL
D50 = 1"
EQUAL MIX (BY VOLUME) OF 25% MDOT HEAVY RIPRAP,
25% MDOT PLAIN RIPRAP, 25% MDOT 3"X1" COURSE
AGGREGATE, AND 25% MDOT 21A
RIFFLE
NOT TO SCALE
ROCK DROP STRUCTURE
W/POOL/RIFFLE PLAN VIEW DETAIL
4' (MIN) TIE INTO BANK. (TYP)
(SEE PLAN VIEW ELEVATION)
PROPOSED TOE OF SLOPE
PROPOSED TOE OF SLOPE
A
25'±
(TYP)
3'
(T Y
P
4'±
(TYP)
EXISTING STREAM FLOWLINE
RECESS STONES IN
ROCK WEIR MIN 24"
NOT TO SCALE
PROFILE VIEW
2'
RECESS STONES IN
ROCK WEIR MIN 24"
ROUNDED AGGREGATE
12" THICK LINED STREAM CHANNEL
D50 = 1"
EQUAL MIX (BY VOLUME) OF 25% MDOT HEAVY RIPRAP,
25% MDOT PLAIN RIPRAP, 25% MDOT 3"X1" COURSE
AGGREGATE, AND 25% MDOT 21A
EQUAL MIX (BY VOLUME) OF 25% MDOT HEAVY RIPRAP,
25% MDOT PLAIN RIPRAP, 25% MDOT 3"X1" COURSE
AGGREGATE, AND 25% MDOT 21A
2'± OR MATCH INTO
EXISTING
EXISTING STREAM FLOWLINE
B CROSS SECTION
NOT TO SCALE
1' TO TIE
IN ELEVATION
EROSION CONTROL BLANKET WITH
PROPOSED SEEDING
PROPOSED ROCK STRUCTURE
PROPOSED POOL BOTTOM
10'
SEE PLAN VIEW FOR
TIE IN ELEVATION
4'
CONSTRUCT 4 FT WIDE
LOW FLOW NOTCH. SEE
ELEVATIONS ON SHEET 06
C
2'
10'
24'
ROUNDED AGGREGATE
12" THICK LINED STREAM CHANNEL
D50 = 1"
POOL BOTTOM2'
CROSS SECTION
NOT TO SCALE
EROSION CONTROL BLANKET WITH
PROPOSED SEEDING.
1' 1'
THE WORK REPRESENTED BY THIS DRAWING WAS DESIGNED BY THE ENGINEER FOR THIS
SPECIFIC APPLICATION AND SPECIFIC LOCATION DESCRIBED HEREON IN ACCORDANCE
WITH THE CONDITIONS PREVALENT AT THE TIME THE DESIGN WAS DONE. THE ENGINEER
DOES NOT GUARANTEE AND WILL NOT BE LIABLE FOR ANY OTHER LOCATION, CONDITION,
DESIGN OR PURPOSE.
BY MARK REVISIONS DATE
DE. BY:
DR. BY:
STDS.
SCALE
DATE
CH. BY:
APP. BY:
SHEET
FILE NO.
OF
PROJECT NO.
SAGINAW OFFICE
230 S. Washington Ave.
Saginaw, MI 48607 Tel. 989-754-4717 Fax. 989-754-4440 www.SpicerGroup.com
PETOBEGO DAM
GRAND TRAVERSE COUNTY, MICHIGAN
ROCK STRUCTURE
DETAIL
POC/WTM
CBS
WTM
WTM 132100SG2022
08 13
JULY, 2026
AS SHOWN DR-4344-08
DR
CBS ISSUED FOR PERMIT - REV 1 07/08/2026
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File details come from the government source that posted it. Updated .