Drawings.pdf

PDF 47 MB Posted Sep 20, 2022

Attached to: MT-FRESNO SAFETY OF DAMS
Solicitation number: 140R6022R0006
Issued by: Department of the Interior Bureau of Reclamation

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Written by GovTribe AI · Dec 27, 2023

This document provides details on a federal contract opportunity from the Department of the Interior Bureau of Reclamation for dam modifications. The solicitation number is 140R6022R0006 for the MT-FRESNO SAFETY OF DAMS project. The opportunity type is a solicitation to modify Fresno Dam and Reservoir, which is part of the Milk River Project located in Fresno Storage Division, Montana. The description indicates the project involves dam safety modifications to infrastructure at Fresno Dam and Reservoir. The related file is engineering drawings for the dam modifications project in PDF format.

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File	Type	Posted
Sol_140R6022R0006_Amd_0004.pdf	PDF	Nov 22, 2022
Amendment_0004_0004.pdf	PDF	Nov 22, 2022
Sol_140R6022R0006_Amd_0003.pdf	PDF	Nov 17, 2022
Amendment_3_0003.pdf	PDF	Nov 17, 2022
Amendment_2_0002.pdf	PDF	Nov 9, 2022
Sol_140R6022R0006_Amd_0002.pdf	PDF	Nov 9, 2022
Sol_140R6022R0006_Amd_0001.pdf	PDF	Oct 28, 2022
Amendment_0001_V2_0001.pdf	PDF	Oct 28, 2022
INVESTIGATIONS.pdf	PDF	Sep 20, 2022
Photographs.pdf	PDF	Sep 20, 2022
Sol_140R6022R0006.pdf	PDF	Sep 20, 2022
Lab_test.pdf	PDF	Sep 20, 2022
SOL.pdf	PDF	Sep 20, 2022

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LEGEND

State Capital

City/Town

US Interestate

US Highway

Water flow direction

Existing paved road

Existing unpaved road

River/Creek

Existing road (no contractor use)

Fr es no R es er vo ir R oa d

Fre sn o R d N

Milk River

Fresno Dam

0 2000'1000'

BOR Field offices

Fresno Reservoir

Canada

Wyoming

N or th D ak ot a S ou th D ak ot a

Montana

Idaho

NTS

Havre, MT 17 mi

Havre

Helena

Bozeman Billings

Great Falls

Lewistown

Fresno Beach campground

River Run campground

Boat ramp

SHEET

B U

U O

F R

O N

U .S

A R

O F

C A D

A ut oC A D

S T

C A D

A M

-D -6

-R D

-1 .D

W G

S T

S A V

D A

-0 3-

S T

S A V

B Y

C S

N D

K R

P R O

C T

N O

R A G

E D

N O

D A M

V O

D A M

M O

O N

VICINITY MAP

DENVER, CO

15-D-60001

2022-03-04

DESIGNED

DRAWN

CHECKED

TECH. APPR.

APPROVED

ADMIN APPROVAL -

ZACHARY ZUKOWSKI

CHRISTOPHER GEMPERLINE

Gemperline, Christopher M P.E.

Wormer, Jeffrey S P.E.

Spillway and bridge

Sheet No.

Drawing No. Title

Informational:

40 16-D-46 Fresno Dam - General Plan and Sections

41 16-D-61 Fresno Dam - Spillway - Excavation Plan and Sections

42 16-D-124 Fresno Dam - Spillway - Right Stilling Pool Wall - Sta.

11+97.50 to Sta. 12+54.50

43 16-D-136 Fresno Dam - Spillway - Right Wall Footing - Upstream from Sta. 11+57.00

44 16-D-225 Fresno Dam - Spillway - Plan and Sections

45 16-D-257 Fresno Dam - Spillway - Side Walls - Sta. 10+35.50 to Sta. 11+17.00

46 16-D-259 Fresno Dam - Left and Right Spillway Walls

47 15-D-282 Fresno Dam - Spillway - Right Inlet Wall - Sta.

8+77.50 to Sta. 10+35.50 - Concrete Details

48 15-D-289 Fresno Dam - Drainage Sump Pumping System - Plan and Section

49 16-D-439 Fresno Dam - Test Apparatus Installation

50 16-604-1 Fresno Dam - Earth Embankment - Parapet Wall and Curb - General Plan and Sections

51 16-604-2 Fresno Dam - Earth Embankment - Parapet Wall Details

Standard Drawings:

52 40-C-71 Enameled Weir Gages

53 40-D-6270 Stock Fencing - Woven or Barbed Wire - Steel Posts

54 40-D-6591 Miscellaneous Metalwork - Side Mounted Pipe Guardrails with Kick Plate

55 40-D-6604 Miscellaneous Metalwork - Ladder - Type 5

56 40-D-6720 Miscellaneous Metalwork - Cover for 36" or Less I.D.

CMP

57 40-D-7016 Chain Link Fencing - Chain Link Fencing Requirements - Soil Installation

58 40-D-60003 Standard Typical Designs - Concrete Outline and Reinforcement - General Notes for Concrete Outline and Reinforcement - Sheet 1 of 2

59 40-D-60004 Standard Typical Designs - Concrete Outline and Reinforcement - Minimum Requirements for Detailing Reinforcement - Sheet 2 of 2

FLOW

NOTES

1. See specifications section 53 20 00 - Records of Geologic and Subsurface Investigations for geology drawings, logs, and data.

Sheet No.

Drawing No. Title

General:

1 15-D-60001 Vicinity Map

2 15-D-60002 Existing Site Plan

3 15-600-60030 Survey Control Drawings

4 15-600-60031 Survey Control Drawings

5 15-D-60003 Plan - Contractor Use Areas 6 15-D-60023 North Borrow Area - Plan - Details 7 15-D-60024 South Borrow Area - Plan - Details 8 15-D-60005 Earth Material Distribution - Section

Civil:

9 15-D-60006 Initial Excavation - Plan

10 15-D-60007 Final Excavation - Plan

11 15-D-60026 Excavation Sections

12 15-D-60008 Spillway Excavation - Plan, Profile, and Details

13 15-D-60028 Right Abutment - Excavation Section and Details

14 15-D-60009 Toe Drain - Plan and Profile 15 15-D-60010 Vertical Sand Filter Trench - Plan and Profile 16 15-D-60011 Typical Buttress Fill - Sections

17 15-D-60012 Dam Crest and Toe Drain - Details 18 15-D-60013 Berm Fill - Plan and Profile 19 15-D-60014 Right Abutment - Plan Sections and Details

20 15-D-60027 Left Abutment Fill - Plan and Section

21 15-D-60038 Toe Drain Outfall Channel - Plan, Profile, Section and Point Table

22 15-D-60035 Miscellaneous Geotechnical Details - Typical Details

23 15-D-60016 Toe Drain Cleanout and Outfall - Sections and Details 24 15-D-60029 Dewatering - Plan

25 15-D-60030 Dewatering - Section and Details

26 15-D-60031 Dewatering - Well Location Tables

27 15-D-60004 Existing Instrumentation Plan

28 15-D-60037 Excavation - Instrumentation - Plan 29 15-D-60025 Finished Instrumentation Plan 30 15-D-60033 Bridge Approach Barrier - Plan, Section and Details

Structural:

31 15-D-60017 Outfall Inspection Well - Plans, Sections, and Details

32 15-D-60020 Toe Drain Inspection Well - Sections and Details

33 15-D-60019 Toe Drain Inspection Well and Flume Details - Plans, Sections, and Details

34 15-D-60015 Concrete Outline and Reinforcement - Well and Manhole Slab - Plans and Sections

35 15-D-60018 Concrete Outline - Weir Box - Plan and Sections

36 15-D-60022 Concrete Outline - Outfall Weir Box - Plan and Sections

37 15-D-60021 Concrete Reinforcement - Outfall Weir Box - Plan and Sections

38 15-D-60032 Concrete Reinforcement - Outfall Weirbox

Metalwork:

39 15-D-60036 Weir Box Aluminum Covers - Plan, Sections and Detail

Re le as ed

P P P P P P P P P P

Reservoir normal water surface Road - paved Road - gravel/dirt

Fence gate Fence - 6 ft.

Drainage ditch/channel

Rip-rap

Sand and gravel stockpiles

Utility pole Guy pole

LEGEND

300'150'

DESIGNED

DRAWN

CHECKED

TECH. APPR.

APPROVED

ADMIN APPROVAL -

NOTES

1. The contour interval is 2 feet.

2. See drawing (60004) for all existing instrumentation.

3. Existing electric line from hydraulic piezometer terminal well is partially overhead and partially underground. Underground location of existing electric line is approximate. Portion of electric line within excavation to be removed.

4. Refer to excavation plans (60006) and (60007) for approximate locations of the existing toe drain and abutment drain.

5. Hydraulic piezometer terminal well locations are approximate. See (16-D-439) for existing hydraulic piezometer terminal wells.

6. All stations are ground distance in feet unless otherwise noted.

7. Existing dam crest elevation varies; nominal dam crest is at El. 2596.

Electrical line, see Note 3

Power - overhead E Power - buried P Phone - buried

M ilk

R iv er

Fresno Reservoir Rd

Lake access road

Dam axis

Dam crest El. 2596, see Note 7

Toe drain outfall and sump pit building

Spillway axis

One lane spillway bridge, see (16-D-225)

Boat ramp and parking area

Outlet works control house access road

Outlet works control house

Tree

Grouted rip-rap surface drain

Surface drainage ditch outfall channel

Toe drain discharge channel

Surface water runoff channel

River access and picnic area

Approximate Location of South Borrow Area, see (60024)

To Reclamation field offices

Hydraulic piezometer terminal well (typ.), see Note 5

Fresno Rd N

Wetland

NWS El. 2575

Parapet wall, see (16-604-1) and (16-604-2)

SHEET

B U

U O

F R

O N

U .S

A R

O F

C A D

A ut oC A D

S T

C A D

A M

-D -6

-R D

-1 .D

W G

S T

S A V

D A

-0 3-

S T

S A V

B Y

C S

N D

K R

P R O

C T

N O

R A G

E D

N O

D A M

V O

D A M

M O

O N

EXISTING SITE PLAN

DENVER, CO

15-D-60002

2022-03-04

River Run campground, see (60003) for approximate location

Sign

Dam/Spillway axis

Wetland

Fresno Reservoir

REFERENCE DRAWINGS

PLAN - CONTRACTOR USE AREAS _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 15-D-60003

EXISTING INSTRUMENTATION PLAN _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 15-D-60004

INITIAL EXCAVATION PLAN - PLANS AND DETAILS _ _ _ _ _ _ _ _ _ _ _ 15-D-60006

FINAL EXCAVATION - PLAN AND PROFILE _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 15-D-60007

SOUTH BORROW AREA - PLAN - DETAILS _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 15-D-60024

FRESNO DAM - SPILLWAY - RIGHT WALL FOOTING - UPSTREAM FROM

STA. 11+57.00 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 16-D-136

FRESNO DAM - SPILLWAY - PLAN AND SECTIONS _ _ _ _ _ _ _ _ _ _ _ _ 16-D-225

FRESNO DAM - SPILLWAY - SIDE WALLS - STA. 10+35.50 TO

STA. 11+17.00 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 16-D-257

FRESNO DAM - LEFT AND RIGHT SPILLWAY WALLS _ _ _ _ _ _ _ _ _ _ _ _ 16-D-259

FRESNO DAM - SPILLWAY - RIGHT INLET WALL - STA. 8+77.50 TO

STA. 10+35.50 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 16-D-282

FRESNO DAM - TEST APPARATUS INSTALLATION _ _ _ _ _ _ _ _ _ _ _ _ _ 16-D-439

FRESNO DAM - EARTH EMBANKMENT - PARAPET WALL AND CURB - GENERAL PLAN

AND SECTIONS _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 16-604-1

FRESNO DAM - EARTH EMBANKMENT - PARAPET WALL DETAILS _ _ _ _ _ 16-604-2

Concrete curb, see (16-604-1) and (16-604-2)

Existing surficial erosion control channel (typ.), spaced about 20 ft

Conduit

FLOW Water flow direction

Approx. location of conduit

Fence - wire

Hydraulic piezometer terminal well

Approx. location of existing stockpiles

ConcreteRoad - 2 track

Walk-through gate

Concrete lined inlet wall, see (16-D-282)

Concrete lined spillway approach channel, see (16-D-225)

Right spillway wall, see (16-D-257), (16-D-259) and (16-D-136)

Left spillway wall, see (16-D-257) and (16-D-259)

Spillway chute, see (16-D-225)

Spillway stilling basin, see (16-D-225)

Left sloped concrete lined stilling basin wing wall

Right sloped concrete lined stilling basin wing wall, see (16-D-225)

Intersection of axes is dam axis Sta. 7+40.00 and spillway axis Sta. 10+00.00

Re le as

P P P P P P P P P P

0 300'150'

T H

S A

LAR M TA IOCE N

-0 2-

A D

A N

G R A

U R V

R M

O N

Re le as

T H

S A

LAR M TA IOCE N

0 400'200'

Re le as

NOTES

1. Approximate location of contractor use areas and stockpile areas as approved by COR. Boundaries are approximate.

2. Access to reservoir water during construction. Well must be repaired and rehabilitated if it will be used during construction.

3. Full road closure will be maintained during spillway excavation.

One lane road closure and one lane open will be maintained for the duration of construction and restoration. Traffic control plan to be approved by COR.

4. Road closure only necessary at the North Borrow Area if it is used for borrow, stockpiling, or waste.

One lane spillway bridge

BOR Field offices

Access to reservoir, see Note 2

Fre sn o R d N

Fresno R eservoir R d

North Borrow Area, stockpile, and waste area;

see Note 1 and (60023)

Fresno Dam

0 450' 900'

LEGEND

Water well

Spillway tailwater access location

Water flow direction

Existing road (No contractor use)

Existing unpaved road

Existing paved road

US Government owned property

River/Creek

Contractor use area

Borrow, stockpile, and waste area

Montana Department of Fish, Wildlife and Parks land

Hill County land

Private land

Fresno Reservoir

Contractor use area, see Note 1

Public access road closure, see Note 4

Public access road closure, see Note 3 and Note 4

Fresno Beach campground

Public access road closure, see Note 4

T H

S A

SHEET

B U

U O

F R

O N

U .S

A R

O F

C A D

A ut oC A D

S T

C A D

A M

-D -6

-R D

-1 .D

W G

S T

S A V

D A

-0 3-

S T

S A V

B Y

C S

N D

K R

P R O

C T

N O

R A G

E D

N O

D A M

V O

D A M

M O

O N

PLAN

CONTRACTOR USE

AREAS

DENVER, CO

15-D-60003

2022-03-04

DESIGNED

DRAWN

CHECKED

TECH. APPR.

APPROVED

ADMIN APPROVAL -

CHRISTOPHER GEMPERLINE

LEONEL MADRIGAL

ZACHARY ZUKOWSKI

Gemperline, Christopher M P.E.

Wormer, Jeffrey S P.E.

Montana Department of Fish, Wildlife and Parks land

South Borrow Area, stockpile, and waste area;

see Note 1 and (60024)

Milk River

River Run campground

REFERENCE DRAWINGS

NORTH BORROW AREA- PLAN - DETAILS _ _ _ _ _ _ _ _ 15-D-60023

SOUTH BORROW AREA - PLAN - DETAILS _ _ _ _ _ _ _ _ 15-D-60024

Hill County land

Private land

River access

Public access road closure, see Note 4

Kiehns Bay Rd.

K ie hn s

B ay

R d.

FLOW

Three-phase power transformer terminal

Re le as

Overhead power line

1/4 section indicator

26202625

252610

26202615

261526

TP16-05

2610.4

TP16-06

2627.0

TP16-08

2623.1

TP16-09

2637.8

TP16-10

2631.8

TP16-11

2627.6

TP16-12

2628.7

TP16-07

2608.4

TP16-01

2624.2

TP16-04

2625.5

TP16-03

2627.2

TP16-02

2630.8

TP-19-01

TP-19-02

TP-19-03

TP-19-04

TP-19-05

T H

S A

SHEET

B U

U O

F R

O N

U .S

A R

O F

C A D

A ut oC A D

S T

C A D

A M

-D -6

-R D

-1 .D

W G

S T

S A V

D A

-0 3-

S T

S A V

B Y

C S

N D

K R

P R O

C T

N O

R A G

E D

N O

D A M

V O

D A M

M O

O N

NORTH BORROW AREA

PLAN

DENVER, CO

15-D-60023

2022-03-07

DESIGNED

DRAWN

CHECKED

TECH. APPR.

APPROVED

ADMIN APPROVAL -

Christopher Gemperline

Christopher Strickland

Zachary Zukowski

Gemperline, Christopher M P.E.

Geotechnical Engineer

Wormer, Jeffrey S P.E.

Geotechnical Engineer

Barbed wire fence Existing gravel road

Utility pole Section indicator

LEGEND

Existing road, see Notes 2 and 6

Point Table Point #

Northing

91182.15

90710.81

90497.87

90405.94

90314.72

90315.91

90165.87

89864.64

89732.50

89757.78

88797.06

88543.97

90692.66

90768.03

90647.44

90657.19

91026.96

Easting

59683.55

59437.87

59414.48

59369.23

59168.07

58164.09

58018.26

58329.12

58897.87

59376.07

61304.74

61907.91

61908.77

61857.30

61435.76

61307.97

60325.97

Elevation

2606.84

2623.97

2627.59

2626.60

2625.66

2611.88

2608.88

2609.76

2607.93

2624.46

2607.49

2607.58

2614.35

2614.77

2611.71

2610.84

2610.37

Description

Borrow

See Note 3

See Note 4

Borrow area boundary

Grading divide line

NOTES

1. Contour interval is 1 foot.

2. Refer to specifications for off-sets from existing roads.

3. Refer to specifications for restoration requirements.

4. Final grading North and South of the grading divide line shall drain toward the North and South respectively.

5. Positive drainage grading directions shown are conceptual and subject to change based on depth of borrow area excavation, final quantity of material removed, and approval of COR. Refer to specifications for final grading plan submittal requirements.

6. Final grading in the North Borrow Area may require culverts to allow water to pass beneath roadways.

7. Topography shown is existing topography prior to borrowing material. Final grading is subject to change based on depth of borrow area excavation, final quantity of material removed, and approval of COR. Refer to specifications for final grading plan submittal requirements.

See (15-600-60031).

8. See Geology drawings (15-600-60059 through 60062) for TP logs and locations.

0 400'200'

PLAN

Test pit

Approximate location of stockpiled cobbles, gravel and sand

Overhead power line

Control point

REFERENCE DRAWINGS

SURVEY CONTROL_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 15-600-60031

GEOLOGY - NORTH BORROW AREA - PLAN _ _ _ _ _ 15-600-60059

NORTH BORROW AREA - SECTIONS A-A' _ _ _ _ _ _ 15-600-60060

NORTH BORROW AREA - SECTIONS B-B' _ _ _ _ _ _ 15-600-60060

NORTH BORROW AREA - SECTIONS C-C', D-D',

AND E-E'_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 15-600-60060

Re le as

102615

26002600

TP-20-01

TP-20-02

TP-20-03

TP-20-04

TP-20-05

TP-20-06

TP-20-07

TP-20-08

TP-20-09

TP-20-10

TP-20-11

TP-20-12

TP-20-13

TP-20-16

TP-20-17 A

T H

S A

SHEET

B U

U O

F R

O N

U .S

A R

O F

C A D

A ut oC A D

S T

C A D

A M

-D -6

-R D

-1 .D

W G

S T

S A V

D A

-0 3-

S T

S A V

B Y

C S

N D

K R

P R O

C T

N O

R A G

E D

N O

D A M

V O

D A M

M O

O N

SOUTH BORROW AREA

PLAN

DENVER, CO

15-D-60024

2022-03-09

DESIGNED

DRAWN

CHECKED

TECH. APPR.

APPROVED

ADMIN APPROVAL -

Christopher Gemperline

Christopher Strickland

Zachary Zukowski

Gemperline, Christopher M P.E.

Geotechnical Engineer

Wormer, Jeffrey S P.E.

Geotechnical Engineer

Existing road, see Note 2

0 100' 200'

LEGEND

Borrow area boundary Gravel road Paved road Barbed wire fence Utility pole Grading divide line Sign Power line Test pit Vegitation Guy anchor

NOTES

1. Contour interval is 1 foot.

2. Refer to specifications for off-sets from existing roads and power poles.

3. Refer to specifications for restoration requirements.

4. Final grading East and West of the grading divide line shall drain toward the East and West respectively.

6. Topography shown is existing topography prior to borrowing material. Final grading is subject to change based on depth of borrow area excavation, final quantity of material removed, and approval of COR. Refer to specifications for final grading plan submittal requirements. See (15-600-60030).

7. Test pits TP-20-14, TP-20-15 and TP-20-18 are located on Hill County Land are not shown.

8. See Geology drawings (15-600-60063 through 15-600-60067) for TP logs and locations.

See Note 3

Steep area

See Note 4

Point Table Point #

Northing

83871.01

84092.63

84583.38

84752.54

84899.47

84994.98

84902.73

84573.96

84628.36

84177.18

84108.05

83878.43

Easting

61676.93

61790.98

61720.46

61593.40

61276.03

61130.80

60910.74

60633.89

60517.95

60311.24

60108.86

60148.15

Elevation

2622.00

2617.88

2617.00

2616.65

2617.02

2616.37

2619.28

2624.27

2624.34

2632.00

2634.01

2636.91

Description

Borrow

See Note 2

PLAN

Existing road

REFERENCE DRAWINGS

SURVEY CONTROL_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 15-600-60030

GEOLOGY - SOUTH BORROW AREA - PLAN _ _ _ _ _ 15-600-60063

SOUTH BORROW AREA - SECTIONS A-A' _ _ _ _ _ _ 15-600-60064

SOUTH BORROW AREA - SECTIONS B-B' _ _ _ _ _ _ 15-600-60065

SOUTH BORROW AREA - SECTIONS C-C' _ _ _ _ _ _ 15-600-60066

SOUTH BORROW AREA - SECTIONS D-D' _ _ _ _ _ _ 15-600-60067

Re le as

00 -100 -200 -300 -4000 20' 40'10'

Existing parapet wall, see (16-604-1) and (16-604-2)

Existing asphalt paved crest, see Note 4

EMBANKMENT MATERIAL DESCRIPTIONS

Zone 1 - Existing sandy silt and low plasticity clay

Zone 2 - Existing Wastefill; sandy silt, and low plasticity clay

Zone 3 - Rockfill; boulders, cobbles and gravel

Zone 5a - Embankment filter sand

Zone 5b - Vertical sand filter trench placed within biopolymer supported slurry trench

Zone 6 - Gravel drain

Zone 7 - Buttress fill

NOTES

1. This chart was prepared to show the contractor anticipated sources of excavated materials and their proposed distribution for the project. This distribution of material should be used only as a guide and should be modified during progress of the work to fit field conditions.

2. The waste quantities and shrinkage factor are estimates and may vary.

3. Drawing depicts a typical embankment valley section. Embankment filter sand thickness increases near the left and right abutments. See (60011) for the typical abutment section.

4. Stripping and topsoil placement, erosion control channel excavation/placement, dam crest road sawcutting/disposal, and dam crest road base/asphalt concrete placement not shown.

5. Zone 1 required excavation includes bedrock excavation (where encountered) and outfall excavation.

6. Quantity estimate of Zone 5b material is the overbuilt quantity, which includes material used to construct the vertical sand filter trench from the initial excavation platform at El. 2535. The estimated neat line quantity after the final excavation is 4,100 CY.

7. Quaternary alluvium contact is interpreted. Actual foundation contact may differ from what is shown. Refer to specifications for geologic investigations and drawings.

8. All dimensions are in feet unless otherwise noted.

LEGEND

Approximate Quaternary Alluvium

Final ground surface

Existing dam axis

16 oz nonwoven geotextile

Zone 5a

Zone 5b

Zone 6

Erosion control cobbles and rip-rap

Erosion control gravel bedding

Crest road repaving

Toe drain pipe

Rip-rap

Gravel

Remaining portion of the hydraulic piezometer terminal well, backfilled with Zone 5a

DESIGNED

DRAWN

CHECKED

TECH. APPR.

APPROVED

ADMIN APPROVAL -

ZACHARY ZUKOWSKI

LUCIA SCHURR

Gemperline, Christopher M P.E.

Wormer, Jeffrey S P.E.

REQUIRED EXCAVATION

185,000 CY

Waste/Process

25,000 CY

Qal

10,000 CY

Rockfill

23,000 CY

BORROW MATERIAL

Borrow Material

185,000 CY

Zone 7

168,000 CY

Waste/Process

8,000 CY

Zone 7

318,000 CY

FURNISHED MATERIAL

Zone 5a

86,000 CY

Zone 5b**

8,100 CY

Zone 6

45,000 CY

C A V A

O N

A C

O N ft

Waste/Process

19,000 CY

Waste/Process

6,000 CY

Qal, see Note 7

Crest erosion control channel, see (60012)

Shrinkage

0.85

Zone 7

150,000 CY

Borrow Material

177,000 CY

Qal

4,000 CY

Zone 1*

160,000 CY

Rockfill

4,000 CY

Existing dam axis

Crest road repaving, see Note 4

REFERENCE DRAWINGS

TYPICAL BUTTRESS FILL - PLAN AND PROFILE _ _ _ _ _ _ _ _ _ _ _ _ 15-D-60011

DAM CREST AND TOE DRAIN - DETAILS _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 15-D-60012

FRESNO DAM - EARTH EMBANKMENT - PARAPET WALL AND CURB - GENERAL

PLAN AND SECTIONS _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 16-604-1

FRESNO DAM - EARTH EMBANKMENT - PARAPET WALL DETAILS _ _ _ _ 16-604-2

* See Note 5 ** See Note 6

T H

S A

SHEET

B U

U O

F R

O N

U .S

A R

O F

C A D

A ut oC A D

S T

C A D

A M

-D -6

-R D

-1 .D

W G

S T

S A V

D A

-0 3-

S T

S A V

B Y

C S

N D

K R

P R O

C T

N O

R A G

E D

N O

D A M

V O

D A M

M O

O N

MATERIAL DISTRIBUTION

CHART

SECTION

DENVER, CO

15-D-60005

2022-03-04

DISTANCE (ft)

Zone 1*Re le as

2 3

891011

21 22

2728293031

32 33 34 35 36

404142434445

Point Table Point #

Northing

85535.67

85530.03

85521.01

85526.68

85544.46

85588.52

85670.92

85958.77

86356.25

86796.74

86901.23

86921.90

86952.00

86991.70

Easting

60652.99

60633.72

60624.04

60616.40

60619.67

60646.22

60699.34

60898.67

61158.72

61444.39

61513.31

61511.48

61508.27

61485.06

Elevation

2567.64

2564.57

2569.81

2574.17

2572.34

2570.35

2569.97

2566.32

2566.36

2567.25

2567.08

2573.69

2580.90

2597.07

Description

87046.09

86960.77

86945.96

86869.44

86799.06

86749.98

86172.52

85834.86

85501.88

85462.24

85544.37

85555.28

85632.82

85922.65

86326.19

86761.05

86866.66

61519.50

61649.83

61671.27

61725.68

61727.81

61706.18

61304.43

61083.82

60865.83

60866.91

60730.05

60712.96

60763.71

60953.40

61217.53

61502.14

61571.27

2597.51

2535.00

2530.16

2536.95

2534.30

2534.43

2534.39

2535.70

2537.94

2537.76

2539.97

2540.08

2540.09

2540.10

86855.42

86736.98

86313.93

85910.39

85620.56

85367.84

85383.03

85421.18

85610.78

85902.69

86307.76

86720.10

86828.43

86895.70

86919.49

86944.09

61588.19

61510.67

61233.77

60969.63

60779.92

60847.80

60773.86

60738.23

60795.39

60984.12

61245.81

61515.81

61586.54

61632.96

61621.51

61638.90

2539.98

2540.00

2539.98

2539.97

2540.16

2546.00

2540.00

2535.00

0 140'70'

2.5H:1V

2.75H:1V

Start excavation existing embankment

Upstream edge of bench for dewatering well installation and maintenance, El. 2540

Initial excavation to El. 2535

Begin stripping surface

Dam axis

NOTES

1. Contour line intervals 2.0 feet.

2. Locations of the existing toe drain pipes are estimated based on historic plans.

3. See (60004) for approximate locations of the existing hydraulic piezometer terminal wells.

4. Initial excavation is for construction of the vertical sand filter trench.

5. Existing 8-inch diameter toe drain at the right abutment to be removed where encountered, see specifications for abandonment of remaining pipe.

6. Existing dam crest elevation varies.

7. See (15-600-60030) and (15-600-60031) for survey control points, survey control coordinate table, and Surveyor's Report.

8. All dimensions and stations are ground distance in feet.

LEGEND

Initial excavation control point Approximate location of existing hydraulic piezometer terminal well Initial excavation Reservoir normal water surface (NWS) El. 2575 Dam axis Existing toe drain pipe Existing road

End dewatering bench

Sloped concrete lined stilling basin wing wall, see (16-D-225)

Existing roads

Approx. location of existing 12-inch diameter toe drain pipe, see Note 3 and (16-D-46)

NWS El. 2575 Dam crest El. 2596, see Note 6

Downstream edge of bench for dewatering well installation and maintenance, El. 2540

2.5H:1V

Approx. location of existing 12-inch diameter toe drain pipe, see Note 2 and (16-D-46)

2.5H:1V

2.75H:1V

T H

S A

SHEET

B U

U O

F R

O N

U .S

A R

O F

C A D

A ut oC A D

S T

C A D

A M

-D -6

-R D

-1 .D

W G

S T

S A V

D A

-0 3-

S T

S A V

B Y

C S

N D

K R

P R O

C T

N O

R A G

E D

N O

D A M

V O

D A M

M O

O N

INITIAL EXCAVATION

PLAN

DENVER, CO

15-D-60006

2022-03-04

Approx. location of existing 8-inch diameter toe drain pipe, see Note 2, Note 5, and (16-D-46)

Fresno Reservoir

Parapet wall, see (16-604-1) and (16-604-2)

Concrete curb to be removed, see (16-604-1)

Spillway wall, see

(16-D-225)

Existing outfall structure, see (15-D-289)

Limits of excavation approximate to existing ground elevation

2.5H:1V

Grade road from existing ground to dewatering bench

Slope varies

Access road to conform to the abutment

Spillway bridge

Concrete line inlet wall, see (16-D-225)

Slope varies

REFERENCE DRAWINGS

EXISTING INSTRUMENTATION PLAN _ _ _ _ _ _ _ _ _ _ _ _ 15-D-60004

SURVEY CONTROL _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 15-600-60030

SURVEY CONTROL _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 15-600-60031

FRESNO DAM - DRAINAGE SUMP PUMPING SYSTEM -

PLAN AND SECTION_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 15-D-289

FRESNO DAM - GENERAL PLAN AND SECTION _ _ _ _ _ _ _ _ _ 16-D-46

FRESNO DAM - SPILLWAY - PLAN AND SECTIONS_ _ _ _ _ _ _ 16-D-225

FRESNO DAM - EARTH EMBANKMENT - PARAPET WALL AND CURB -

GENERAL PLAN AND SECTIONS _ _ _ _ _ _ _ _ _ _ 16-604-1

FRESNO DAM - EARTH EMBANKMENT - PARAPET

WALL DETAILS _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 16-604-2

DESIGNED

DRAWN

CHECKED

TECH. APPR.

APPROVED

ADMIN APPROVAL -

Christopher Gemperline

Christopher Strickland

Zachary Zukowski

Gemperline, Christopher M P.E.

Geotechnical Engineer

Wormer, Jeffrey S P.E.

Geotechnical Engineer

Re le as

2580 2580

105106107 108109

118 119

121 122 123

125126127128129

131 132 133 135

138139 140141142143

147148

149 150 151 152 153

154155

160 161

65.0

Point Table Point #

Northing

85437.04

85412.62

85536.06

85533.62

85543.71

85588.52

85670.92

85958.77

86356.25

86796.74

86901.23

86981.28

87051.39

86990.00

Easting

60786.70

60741.97

60644.81

60635.88

60628.04

60646.22

60699.34

60898.67

61158.72

61444.39

61513.31

61473.75

61509.17

61584.96

Elevation

2515.00

2540.00

2568.02

2571.70

2571.68

2570.35

2569.96

2566.31

2566.35

2567.25

2567.08

2596.49

2540.00

Description

87005.01

86928.84

86854.16

86761.19

86653.73

86233.71

85814.69

85527.61

85445.44

85544.37

85555.28

85632.82

85922.65

86326.19

86761.05

86866.66

86855.42

61594.56

61697.27

61731.43

61732.41

61662.40

61387.38

61114.69

60928.62

60879.48

60730.05

60712.96

60763.71

60953.40

61217.53

61502.14

61571.27

61588.19

2540.00

2540.39

2535.91

2534.19

2534.45

2534.39

2535.05

2535.82

2537.76

2539.96

2540.07

2540.08

2540.09

2540.10

2539.98

86748.24

86313.93

85910.39

85620.58

85412.31

85470.38

85505.99

85589.48

85873.83

86280.09

86710.13

86807.80

86871.10

86883.00

86990.93

86979.23

86995.23

61518.04

61233.77

60969.63

60779.90

60825.64

60841.39

60786.97

60841.73

61028.05

61294.46

61576.25

61640.11

61673.96

61689.84

61609.39

61593.33

61612.14

2539.98

2539.97

2538.20

2538.21

2515.00

2515.70

2539.99

86782.31

86674.20

86260.66

85821.23

85558.84

86319.67

86332.65

86305.42

86348.40

86377.31

86478.52

86467.15

86454.60

86401.86

85391.77

85349.13

85367.54

61700.13

61629.35

61358.68

61071.04

60899.29

61691.73

61699.29

61676.62

61689.32

61683.39

61548.01

61493.84

61485.63

61496.90

60731.64

60856.03

60847.94

2515.00

2515.50

2525.10

2519.02

2529.33

2534.55

2515.00

2534.16

2540.00

0 70' 140'

2.5H:1V

2.75H:1V

2H:1V

Start excavation existing embankment

Upstream edge of bench for dewatering well installation and maintenance El. 2540.0

℄ vertical sand filter trench, see Note 7 and (60010)

Parapet wall, see (16-604-l) and (16-604-2)

Begin stripping surface

Dam axis

Excavate and remove existing toe drain outfall, see Note 2

NOTES

1. Contour line intervals are 2.0 feet.

2. Locations of the existing toe drain pipes are estimated based on historic plans.

3. See (60004) for locations of the existing hydraulic piezometer terminal wells.

4. Excavation slopes shall not be steeper than 2.75V:1H in the Quaternary Alluvium. Excavation slopes shall not be steeper than 1.5V:1H in the existing compacted embankment and downstream wastefill.

5. Excavation surfaces are based on removal of the existing toe drain pipes and rockfill zone against the embankment.

Excavation may vary to ensure complete removal of the rockfill and toe drain pipes.

6. Excavation of the Quaternary Alluvium may be deeper in some areas to remove unsuitable material prior to placement of the Zone 5a, Zone 6 and Zone 7 as directed by COR.

7. Vertical sand filter trench to be constructed prior to final excavation.

8. Existing 8-inch diameter toe drain at the right abutment to be removed where encountered, see specifications for abandonment of remaining existing toe drain pipe.

9. Remove existing outfall structures. Exact location and size of the existing outfall structure is estimated.

10. Existing dam crest elevation varies.

11. All dimensions and stations are ground distance in feet.

End dewatering bench

Existing roads

Excavate and remove existing 12-inch diameter toe drain pipe, see Note 2 and (16-D-46)

Sloped concrete lined stilling basin wing wall see, (16-D-225)

NWS El. 2575Dam crest El. 2596, see Note 10

Downstream edge of bench for dewatering well installation and maintenance, El. 2540.0

2.5H:1V

Excavate and remove existing 12-inch diameter toe drain pipe, see Note 2 and (16-D-46)

2H:1V

2.5H:1V

2.75H:1V

Spillway wall, see

(16-D-225)

Concrete lined inlet wall, see (16-D-225)

Concrete curb to be removed, see (16-604-l)

2H :1

Fresno Reservoir

SHEET

B U

U O

F R

O N

U .S

A R

O F

C A D

A ut oC A D

S T

C A D

A M

-D -6

-R D

-1 .D

W G

S T

S A V

D A

S T

S A V

B Y

C S

N D

K R

P R O

C T

N O

R A G

E D

N O

D A M

V O

D A M

M O

O N

FINAL EXCAVATION

PLAN

DENVER, CO

15-D-60007

2022-03-04

DESIGNED

DRAWN

CHECKED

TECH. APPR.

APPROVED

ADMIN APPROVAL -

CHRISTOPHER GEMPERLINE

CHRISTOPHER STRICKLAND

ZACHARY ZUKOWSKI

Gemperline, Christopher M P.E.

Geotechnical Engineer

Wormer, Jeffrey S P.E.

Geotechnical Engineer

Remove existing outfall structure, see Note 9 and (15-D-289)

Existing 8-inch diameter toe drain pipe, see Note 2, Note 8 and (16-D-46)

LEGEND

Final excavation control point Approximate existing hydraulic piezometer terminal well, see Note 3 Final excavation Reservoir normal water surface (NWS) El. 2575 Dam axis Existing toe drain pipe Vertical sand filter trench Existing dirt roads

Slope varies

Grade from existing ground to dewatering bench

Access road and abutment excavation to conform to the abutment

Toe drain outfall ditch, see (60038)

Spillway bridge

Slope varies

REFERENCE DRAWINGS

EXISTING INSTRUMENTATION PLAN_ _ _ _ _ _ _ _ _ _ _ _ _ 15-D-60004

VERTICAL SAND FILTER TRENCH - PLAN AND PROFILE_ _ _ _15-D-60010

TOE DRAIN OUTFALL CHANNEL - PLAN, PROFILE,

SECTIONS AND POINT TABLE _ _ _ _ _ _ _ _ _ _ 15-D-60038

FRESNO DAM - DRAINAGE SUMP PUMPING SYSTEM -

PLAN AND SECTION _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 15-D-289

SURVEY CONTROL_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 15-600-60030

SURVEY CONTROL_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 15-600-60031

FRESNO DAM - GENERAL PLAN AND SECTION_ _ _ _ _ _ _ _ _ _ 16-D-46

FRESNO DAM - SPILLWAY - PLAN AND SECTIONS _ _ _ _ _ _ _ 16-D-225

FRESNO DAM - EARTH EMBANKMENT - PARAPET WALL AND CURB -

GENERAL PLAN AND SECTIONS_ _ _ _ _ _ _ _ _ _ _ 16-604-1

FRESNO DAM - EARTH EMBANKMENT - PARAPET

WALL DETAILS _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 16-604-2

Re le as

O N

00 -100 -200 -300 -400

O N

00 -100 -200 -300 -400

0 20' 40'10'

Existing parapet wall

Limits of excavation, see (60007) for control point table, see Note 6 20.0

65.0

2.5H:1V

2.75H:1V 2H:1V

Existing curb to be removed and wasted

Start stripping surface, see Note 1

Existing grouted riprap surface drain to be removed

Start excavation surface existing embankment material

Bench for dewatering well installation and maintenance El. 2540.0

Existing dam surface Approximate location of existing hydraulic piezometer terminal well to be abandoned, see Note 4 Remove existing chain link fence and waste

Remove existing 12-inch toe drain pipe and screened gravel envelope, see Note 3

Initial excavation depth to El. 2535, see Note 8

Existing dam axis, see Note 10

EMBANKMENT MATERIAL

DESCRIPTIONS

Zone 1 - Existing sandy silt, and low plasticity clay Zone 2 - Existing Wastefill; sandy silt, and low plasticity clay Zone 3 - Rockfill; boulders, cobbles and gravel Zone 4 - Gravel blanket placed in original river channel, see (16-D-46) Zone 5a - Embankment filter sand

Zone 5b - Vertical sand filter trench placed within biopolymer slurry supported trench

Zone 6 - Gravel drain Zone 7 - Buttress fill

NOTES

1. Strip approximately 12 inches of existing topsoil from the downstream slope of the embankment and stockpile for use as final embankment surface topsoil.

2. Quaternary alluvium and Judith River contact is interpreted. Actual foundation contact may differ from what is shown. Refer to specifications for geologic investigations.

3. Screened gravel envelope not shown. See existing dam plan and profile for approximate location of the existing toe drain pipe and screened gravel envelope.

4. Hydraulic piezometer terminal well instruments to be removed, tube bundle to be tied and secured to wall of remaining manhole, and manhole filled with Zone 5a.

5. Stockpiled Zone 1, Zone 2, and rockfill may be used for Zone 7 buttress fill, See specifications for buttress fill material size.

6. Excavation of the Quaternary alluvium may be deeper in some areas. Remove unsuitable materials prior to placement of the Zone 5a, and Zone 6 and as directed by COR

7. The top of Zone 5b must be cleaned and protected to provide a continuous contact with Zone 5a placed above the bottom of the excavation.

8. Initial excavation is for construction of the vertical sand filter trench. See (60010) for vertical sand filter trench plan and profile.

9. All dimensions are in feet unless otherwise indicated.

10. Depth and location of buried electric line within the crest is unknown. Electric line shall be located and moved if necessary. See specifications.

LEGEND

Approximate Quaternary Alluvium and Judith River Formation Existing dam surface line Stripping surface Initial excavation surface Final excavation surface

Final excavation depth El. 2515, see Note 6

0 20' 40'10'

Existing parapet wall

Limits of excavation, see (60007) for control point table, see Note 6

20.0

2.5H:1V

2.75H:1V 2H:1V

Existing curb to be removed and wasted

Start stripping surface, see Note 1 Existing grouted rip-rap surface drain to be removed

Start excavation surface existing embankment material

Bench for dewatering well installation and maintenance El. 2540.0

Existing dam surface

Remove existing chain link fence and waste

Remove existing 12-in toe drain pipe and screened gravel envelope, see Note 3Initial excavation depth to El. 2535, see Note 8

Existing dam axis, see Note 10

Final excavation depth elevation El. 2515, see Note 6

Vertical sand filter trench, see Note 7 and (60010)

T H

S A

SHEET

B U

U O

F R

O N

U .S

A R

O F

C A D

A ut oC A D

S T

C A D

A M

-D -6

-R D

-1 .D

W G

S T

S A V

D A

-0 3-

S T

S A V

B Y

C S

N D

K R

P R O

C T

N O

R A G

E D

N O

D A M

V O

D A M

M O

O N

EXCAVATION SECTIONS

DENVER, CO

15-D-60026

2022-03-03

5b Qal, see Note 2

Vertical sand filter trench, see Note 7 and (60010)

5b Qal, see Note 2

65.0

DESIGNED

DRAWN

CHECKED

TECH. APPR.

APPROVED

ADMIN APPROVAL -

Christopher Gemperline

Christopher Strickland

Zachary Zukowski

Gemperline, Christopher M P.E.

Wormer, Jeffrey S P.E.

REFERENCE DRAWINGS

GENERAL PLAN AND SECTIONS_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _16-D-46

EXISTING SITE PLAN_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 15-D-60002

FINAL EXCAVATION - PLAN AND PROFILE_ _ _ _ _ _ _ _ _15-D-60007

VERTICAL SAND FILTER TRENCH - PLAN AND PROFILE _ _15-D-60010

Zone 1

Zone 2

Zone 3

Zone 4

Zone 5b

Re le as

010203035

0100140

9+00

05 25

10 25

0 100 200 300 340

0 100 170

0 20' 40'10' B

0 10'5' A

Existing ground

Existing ground Excavation limits

Final excavation limits, see Note 6

0 60'30'

T H

S A

SHEET

B U

U O

F R

O N

U .S

A R

O F

C A D

A ut oC A D

S T

C A D

A M

-D -6

-R D

-1 .D

W G

S T

S A V

D A

-0 3-

S T

S A V

B Y

C S

N D

K R

P R O

C T

N O

R A G

E D

N O

D A M

V O

D A M

M O

O N

SPILLWAY EXCAVATION

PLAN, PROFILE AND

DETAILS

DENVER, CO

15-D-60008

2022-03-04

DESIGNED

DRAWN

CHECKED

TECH. APPR.

APPROVED

ADMIN APPROVAL -

CHRISTOPHER GEMPERLINE

CHRISTOPHER STRICKLAND

ZACHARY ZUKOWSKI

Gemperline, Christopher M P.E.

Wormer, Jeffrey S P.E.

NOTES

1. Location of spillway wall footing and counterforts are approximate.

2. Protect spillway wall from damage during excavation.

3. Screened gravel envelope note shown. See existing dam plan and profile for approximate location of the existing toe drain pipe and screened gravel envelope.

4. Excavate to the concrete spillway wall and footing, see specifications.

5. Side slopes shall not be steeper than 2H:1V.

6. Excavate to the Judith River Formation (Kjr) as directed by

COR.

7. Refer to (60007) for excavation point data table.

8. Strip approximately 12 inches of the downstream slope of the embankment and stockpile for use as final embankment surface topsoil.

9. All dimensions are in feet unless otherwise indicated.

10. All contour intervals at 1 foot.

LEGEND

Approximate Quaternary Alluvium and Judith River Formation

Final excavation surface Initial excavation surface Reservoir normal water surface (NWS) Existing 12-inch diameter toe drain pipe Existing ground Excavation point, see Note 7 Vertical sand filter trench Stripping

Spillway foundation footing

Counterforts

Spillway wall, see (16-D-259) Outline of warped inlet wall, see (16-D-259)

See Note 4

Right spillway wall, see (16-D-259)

Slope varies

Slope varies, see Note 5

See Note 4

NWS El. 2575

Begin stripping

Slope varies, see Note 5

2.5H:1V

Slope varies

Kjr 1

Kjr

2.75H:1V

2H:1V

Excavate and remove existing 12-inch diameter toe drain pipe, see Note 3, (60007), and (16-D-46)

End of dewatering bench

℄ of vertical sand filter trench, see (60010)

Spillway foundation footing

Right spillway wall, see (16-D-259)

0 20' 40'10' C

Stripping, see Note 8

Existing ground

Stripping, see Note 8

Final excavation limits

0 20' 40'10' D

Stripping, see Note 8

Right spillway wall, see (16-D-259)

Existing ground

EMBANKMENT MATERIAL

DESCRIPTIONS

Zone 1 - Existing sandy silt, and low plasticity clay Zone 2 - Existing Wastefill; sandy silt, and low plasticity clay Zone 3 - Rockfill; boulders, cobbles, and gravel Zone 5a - Embankment filter sand

Zone 5b - Vertical sand filter trench placed within biopolymer slurry supported trench

Zone 6 - Gravel drain Zone 7 - Buttress fill

Spillway chute floor

Kjr

Begin excavation existing embankment

Final excavation limits

Kjr

Qal

Existing curb to be removed

Existing grouted rip-rap surface drain to be removed

℄ vertical sand filter trench

Start vertical sand filter trench, see (60010)

Right spillway wall, see (16-D-259)

Initial excavation, see (60006)

Initial excavation

Existing road

Spillway bridge

Zone 5b

REFERENCE DRAWINGS

INITIAL EXCAVATION - PLAN_ _ _ _ _ _ _ _ _ _ _ _ _ _ _15-D-60006

FINAL EXCAVATION - PLAN _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 15-D-60007

VERTICAL SAND FILTER TRENCH - PLAN AND PROFILE _ 15-D-60010

FRESNO DAM - GENERAL PLAN AND SECTIONS _ _ _ _ _ _ _ 16-D-46

FRESNO DAM - LEFT AND RIGHT SPILLWAY WALLS _ _ _ _ 16-D-259

Stilling basin counterfort

℄ vertical sand filter trench

Zone 1

Zone 3

Remove existing 12-in toe drain pipe and screened gravel envelope, see Note 3

Re le as

00 -100 -200 -300 -400

0 100 200 300300

0 40' 80'20'

0 60'30'

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RIGHT ABUTMENT

EXCAVATION SECTION

AND DETAILS

DENVER, CO

15-D-60028

2022-03-07

EMBANKMENT MATERIAL DESCRIPTIONS

Zone 1 - Existing sandy silt, and low plasticity clay

Zone 2 - Existing Wastefill; sandy silt, and low plasticity clay

Zone 3 - Rockfill; boulders, cobbles and gravel

Zone 5a - Embankment filter sand

Zone 5b - Vertical sand filter trench placed within biopolymer slurry supported trench

Zone 6 - Gravel drain

Zone 7 - Buttress fill

NOTES

1. Contour line intervals is 2.0 feet.

2. Strip approximately 12 inches of topsoil from the downstream slope of the embankment and stockpile for use as final embankment surface topsoil.

3. Geologic contacts are interpreted. Actual foundation contact may differ from what is shown. Refer to geologic investigations in specifications. Excavate embankment to foundation soil or to El. 2515, whichever is deeper.

4. Screened gravel envelope not shown. See existing dam plan and profile (16-D-46) for approximate location of the existing toe drain pipe and screened gravel envelope. The bottom width of the excavation may vary based on the location of the existing toe drain pipe.

5. Refer to historical drawings (16-D-46) for upstream surface and cutoff trench.

6. Stockpiled Zone 1, Zone 2, Zone 3, and foundation material may be used for Zone 7. See specifications for Zone 7 material size.

7. Excavation of the Quaternary alluvium may be deeper in some areas to remove unsuitable materials prior to placement of Zone 5a and Zone 6 as directed by COR.

8. The vertical sand filter trench above El. 2515 will be excavated to reach final excavation elevations. The top of Zone 5b must be cleaned and protected to provide a continuous contact with Zone 5a to be placed above the bottom of the excavation.

9. Initial excavation is for construction of the vertical sand filter trench.

10. All dimensions are in feet unless otherwise indicated.

11. Existing 8-inch diameter toe drain to be removed where encountered.

12. Refer to (60007) for excavation point data table.

LEGEND

Approximate Quaternary Alluvium and Judith River Formation Existing dam surface line Stripping surface Dam axis Initial excavation depth Final excavation surface Existing toe drain pipe (16-D-46) Vertical sand filter trench Reservoir normal water surface (NWS) El. 2575 Zone 2 and Zone 3 seperation

Limits of excavation, see (60007) for control point table 20.0

2.5H:1V

2.75H:1V 2H:1V

Existing concrete curb surface drain to be removed Begin stripping surface, see Note 2

Bench for dewatering well installation and maintenance, El. 2540

Existing dam surface

Remove existing chain link fence and waste

Remove existing 12-inch diameter toe drain pipe and screened gravel envelope, see Note 4

Initial excavation depth El. 2535, see Note 9

Final excavation depth El. 2515, see Note 7

See Note 8 and (60010)

65.0

Existing dam axis

Existing parapet wall

Bench for dewatering well installation and maintenance El. 2540

Initial excavation depth El. 2535, see Note 9

Final excavation depth El. 2515, see Note 8

Limits of excavation, see (60007) for control point table

1H:1V

2H:1V

Existing 8-inch diameter toe drain pipe, see Note 11, (16-D-46) and (60007)

Slope varies

℄ vertical sand filter trench, see (60010)

Start excavation existing embankment, see

(60007) for survey control point point

Upstream edge of bench for dewatering well installation and maintenance, El. 2540

Begin stripping surface

NWS El. 2575

Downstream edge of bench for dewatering well installation and maintenance, El. 2540

:1 V

Fresno Reservoir

H :1

V 2H

:1 V

Remove existing 12-inch diameter toe drain pipe, see (16-D-46) and (60007)

Begin stripping surface

Existing grouted rip-rap surface drain to be removed

Start excavation existing embankment

Begin stripping surface, see Note 2

Start excavation abutment material

Existing abutment surface

Parapet wall, see (16-604-l) and (16-604-2)

Dam axis

Concrete curb to be removed, see

(16-604-l)

Qal, see Note 3

Kjr

20.0

52.0

Remove existing chain link fence and waste

O N

See Note 8 and (60010)

DESIGNED

DRAWN

CHECKED

TECH. APPR.

APPROVED

ADMIN APPROVAL -

Christopher Gemperline

Christopher Strickland

Zachary Zukowski

Gemperline, Christopher M P.E.

Wormer, Jeffrey S P.E.

REFERENCE DRAWINGS

FINAL EXCAVATION - PLAN AND PROFILE_ _ _ _ _ _ _ _ _ 15-D-60007

VERTICAL SAND FILTER TRENCH - PLAN AND PROFILE _ _15-D-60010

FRESNO DAM - GENERAL PLAN AND SECTIONS _ _ _ _ _ _ _ _ 16-D-46

FRESNO DAM - EARTH EMBANKMENT - PARAPET WALL AND CURB -

GENERAL PLAN AND SECTIONS_ _ _ _ _ _ _ _ _ _ 16-604-1

FRESNO DAM - EARTH EMBANKMENT - PARAPET

WALL DETAILS _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 16-604-2

Qal, see Note 3

Zone 1

Zone 2

Zone 3

Zone 5b

Re le as

E-60440

N-85600

E-61817

N-86697

0017+

18+00

19+00

19+50

0+001+002+003+004+005+006+007+008+009+0010+0011+0012+0013+0014+0015+0016+0017+0018+0019+0019+50

0 140'70'

2.5H:1V

2.75H:1V

2H:1V

Parapet wall, see (16-604-1) and

(16-604-2)

Dam axis

NOTES

1. Toe drain outfall pipes are 24-inch diameter solid wall perforated and non perforated HDPE SDR 17 as shown. Refer to specification.

2. Minimum slope of the toe drain and outfall pipe is 0.003.

3. Maximum toe drain pipe bend shall not exceed 22.5 degrees and a minimum of 5 feet long straight section will be placed between each bend.

4. Pipe slope varies at abutments. Maintain minimum sand and gravel thickness.

5. Place a minimum of 1.0 foot gravel drain around perforated pipe, and a minimum of 2.0 feet of filter sand beneath the gravel drain.

6. Existing 8-inch diameter toe drain to be removed where encountered, see specifications for abandonment of remaining pipe.

7. Non-perforated pipe to extend 10-feet on either side of inspection wells and 20-feet from concrete weir box, then connected to perforated seepage collector pipe.

8. Toe drain cleanouts are 45 degrees consisting of 24-inch diameter non-perforated pipe for 5 vertical feet below ground surface. See (60016).

9. All dimensions and stations are ground distance in feet.

10. Contour interval 2.0 feet.

11. Existing dam elevation varies.

LEGEND

Approximate location of existing hydraulic piezometer terminal well Dam axis and toe drain stationing Existing grade Final excavation Vertical sand filter trench 24-inch perforated solid wall HDPE pipe 24-inch non-perforated HDPE pipe Reservoir normal water surface (NWS) El. 2575 Existing dirt road Toe drain pipe

140'0 70'

Perforated toe drain outfall pipes, see Note 1 and (60016)

Perforated toe drain pipe, see Note 1

Toe drain cleanout N 87,006 E 61,577, see (60016)

Weir box, see (60018)

Perforated toe drain pipe, see Note 1

Dam crest, El. 2596, see Note 11

Toe drain cleanout N 85,365 E 60,823 see (60016)

℄ vertical sand filter trench, see (60010)

Sloped concrete lined stilling basin wing wall, see (16-D-225)

Bench for dewatering well installation and maintenance El. 2540.0

Right toe drain inspection well

N 85,943 E 61,149, see (60020)

Invert of perforated toe drain pipe

Bottom of excavation, see (60007)

Outfall inspection well, see (60017)

Non-perforated toe drain pipe to extend 10-feet from inspection well, see Note 7

Spillway wall, see (16-D-225)

Spillway bridge, see (16-D-225)

Concrete lined spillway approach channel, see (16-D-225)

Concrete lined inlet wall, see (16-D-225)

Existing grade

Upstream face of weir box headwall

N 86,333 E 61,685

Finished grade

Fresno Reservoir

Right toe drain inspection well, see (60020)

Toe drain cleanout, see Note 8 and (60016)

Outfall inspection well N 86,461 E 61,490 see (60017)

Dewatering bench

Left toe drain inspection well, see (60020)

Existing roads

Existing 8-inch diameter toe drain pipe, see Note 6

NWS El. 2575

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TOE DRAN

PLAN AND PROFILE

DENVER, CO

15-D-60009

2022-03-04

Toe drain cleanout, see Note 8 and (60016)

N 86,866 E 61,694

Left toe drain inspection well N 86,776 E 61,696, see (60020)

0.003, see Note 2

Slope varies, see Note 4

Toe drain outfall channel, see (60038)

N 85,452 E 60,822

DESIGNED

DRAWN

CHECKED

TECH. APPR.

APPROVED

ADMIN APPROVAL -

Christopher Gemperline

Christopher Strickland

Zachary Zukowski

Gemperline, Christopher M P.E.

Wormer, Jeffrey S P.E.

Non-perforated toe drain pipe to extend 10-feet from inspection well, see Note 7

End of dewatering bench

0.003, see Note 2

Slope varies

REFERENCE DRAWINGS

FINAL EXCAVATION PLAN - PLAN AND PROFILE_ _ _ _ _ _ _ _ 15-D-60007

VERTICAL SAND FILTER TRENCH - PLAN AND PROFILE _ _ _ _15-D-60010

TOE DRAIN CLEANOUT AND OUTFALL - SECTIONS

AND DETAILS _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _15-D-60016

OUTFALL INSPECTION WELL - PLANS, SECTIONS

AND DETAILS_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _15-D-60017

CONCRETE OUTLINE - WEIR BOX - PLAN AND SECTIONS_ _ _ 15-D-60018

TOE DRAIN INSPECTION WELL - SECTIONS AND DETAILS _ _15-D-60020

TOE DRAIN OUTFALL CHANNEL - PLAN, PROFILE,

SECTIONS AND POINT TABLE _ _ _ _ _ _ _ _ _ _ _ 15-D-60038

FRESNO DAM - SPILLWAY - PLAN AND SECTIONS_ _ _ _ _ _ _ _ 16-D-225

FRESNO DAM - EARTH EMBANKMENT - PARAPET WALL AND CURB -

GENERAL PLAN AND SECTIONS _ _ _ _ _ _ _ _ _ _ _ 16-604-1

FRESNO DAM - EARTH EMBANKMENT - PARAPET

WALL DETAILS_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 16-604-2

0.003, see Note 2

Re le as

2580 2580

1+00

E-60440

N-85600

E-61817

N-86697

O N

STATION

0+001+002+003+004+005+006+007+008+009+0010+0011+0012+0013+0014+0015+0016+0017+0018+00

Existing 12-inch diameter toe drain pipe, see (16-D-46)

Vertical sand filter trench, see profile

Aphalt paved crest road

NWS El. 2575

Dewatering bench

Bottom of vertical sand filter trench, El. 2495

140'0 70'

Spillway wall, see

(16-D-225)

0 140'70' NOTES

1. Trench to be supported by biopolymer slurry. See specifications for slurry composition and installation procedures.

2. Trench to be constructed prior to final excavation from the bottom of the initial excavation depth El. 2535.0, see (60006).

3. Biopolymer slurry to be degraded with chemical injection. See specifications for injection composition and procedures.

4. The top of the vertical sand trench must be cleaned and protected to provide a continuous contact with Zone 5b placed above the bottom of the excavation.

5. Geology interpretation is approximate, refer to drawings and specifications for geology investigations. Embankment zoning and geology are projected.

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File details come from the government source that posted it. Updated Sep 20, 2022.