Glen Erie South_For Bid Drawings_07.01.2025.pdf

Drawing Date:

WESTERN WATER SOLUTIONS, LLC

PO BOX 3741

BASALT, COLORADO 81621

COLORADO DEPARTMENT OF PUBLIC

HEALTH

4300 CHERRY CREEK DRIVE SOUTH, B2

DENVER, COLORADO 80246-1530

GLEN ERIE SOUTH

WATER STORAGE

TANK

REHABILITATION

PROJECT

CITY OF CRAIG

300 W 4TH ST

CRAIG, COLORADO 81625

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COVER SHEET

G000

CITY OF CRAIG

GLEN ERIE SOUTH WATER STORAGE TANK REHABILITATION PROJECT

CRAIG, COLORADO

DRAWING SHEET INDEX

G000 COVER SHEET

G001 GENERAL NOTES AND ABBREVIATIONS

VICINITY MAP

NOT TO SCALE

PROJECT LOCATION

LOCATION MAP

NOT TO SCALE BID SET

S101 FLOOR AND ROOF PLANS

TANK DETAILS

DRAWING SCALES SHOWN BASED ON A 22x34 DRAWING

G002 GENERAL SITE PLAN

S001 STRUCTURAL GENERAL NOTES

S501

S301 TANK SECTIONS

S502 VENT DETAILS

MEEKER

PROJECT LOCATION

HWY 40

CRAIG

HWY 40

MAYBELL

HAYDEN

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AutoCAD SHX Text Sheet Title

PO BOX 3741

BASALT, COLORADO 81621

COLORADO DEPARTMENT OF PUBLIC

HEALTH

4300 CHERRY CREEK DRIVE SOUTH, B2

DENVER, COLORADO 80246-1530

GLEN ERIE SOUTH

WATER STORAGE

TANK

REHABILITATION

PROJECT

CITY OF CRAIG

300 W 4TH ST

CRAIG, COLORADO 81625

Revision/Issue Date

Checked By:

Drawn By:

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No.

2025-COC-GES

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ABBREVIATIONS:

ADD'L

ALUM

ANSI

API

APPROX

ASCE

ASTM

AWS

AWWA

BAC

B.O.

CDOT

CDPHE

DIAM.

D.I.

EL/ELEV

EPA

EQ

EQUIV.

ETC.

EX / EXIST

FG

FL

FT

FY

GPM

HWL

HSS

IBC

I.D.

IN

K

KSI

LBS

MAX

MFL

MIN

MNFR

MPH

NACE

NO.

NSF

O.D.

OPNG

PE

PSF

PSI

QTY

RE:

RECT

REQ'D

SCH

SEAC

SEC

SP

SPEC

SQ

SS

SSPC

STD

T.O.

TYP

UE

USGS

W/ Ø

ADDITIONAL

ALUMINUM

AMERICAN NATIONAL STANDARDS INSTITUTE

AMERICAN PETROLEUM INSTITUTE

APPROXIMATELY

AMERICAN SOCIETY OF CIVIL ENGINEERS

AMERICAN SOCIETY OF TESTING AND MATERIALS

AMERICAN WELDING SOCIETY

AMERICAN WATER WORKS ASSOCIATION

BACTERIOLOGICAL

BOTTOM OF

COLORADO DEPARTMENT OF TRANSPORTATION

CO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT

DIAMETER

DUCTILE IRON

ELEVATION

ENVIRONMENTAL PROTECTION AGENCY

EQUAL

EQUIVALENT

ETCETERA

EXISTING

FINISHED GRADE

FLANGE

FOOT

YIELD STRENGTH

GALLONS PER MINUTE

HIGH WATER LEVEL

HOLLOW STEEL SECTION

INTERNATIONAL BUILDING CODE

INSIDE DIAMETER

INCH

THOUSAND

KIPS PER SQUARE INCH

POUNDS

MAXIMUM

MAGNETIC FLUX LEAKAGE

MINIMUM

MANUFACTURER

MILE PER HOUR

NATIONAL ASSOCIATION OF CORROSION ENGINEERS

NUMBER

NATIONAL SANITARY FOUNDATION

OUTSIDE DIAMETER

OPENING

PLAIN END

POUNDS PER SQUARE FOOT

POUNDS PER SQUARE INCH

QUANTITY

REFERENCE

RECTANGULAR

REQUIRED

SCHEDULE

STRUCTURAL ENGINEERS ASSOCIATION OF COLORADO

SECOND

SPACING

SPECIFICATION

SQUARE

STAINLESS STEEL

SOCIETY FOR PROTECTIVE COATINGS

STANDARD

TOP OF

TYPICAL

UNDERGROUND ELECTRIC

U.S. GEOLOGICAL SURVEY

WITH

INCH

FOOT

CENTERLINE

DIAMETER

AND

PERCENT

DEGREE

NUMBER

GENERAL NOTES:

1. THE GLEN ERIE SOUTH TANK IS AN ABOVE-GRADE, WELDED STEEL

WATER STORAGE TANK WITH A DIAMETER OF 66 FEET AND HEIGHT OF 20

FEET FOR A TOTAL STORAGE CAPACITY OF APPROXIMATELY 500,000

GALLONS. THE TANK IS LOCATED ON THE CORNER OF E 11TH STREET

AND BRYAN WAY IN CRAIG, COLORADO.

2. ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH THE CONTRACT

DOCUMENTS AND BE SUBJECT TO CONSTRUCTION OBSERVATION BY

THIRD PARTY INSPECTORS, ENGINEER OF RECORD, AND CITY OF CRAIG

REPRESENTATIVES OR PERSONNEL.

3. WESTERN WATER SOLUTIONS AND CITY OF CRAIG DO NOT GUARANTEE

THE ACCURACY OF LOCATIONS OF EXISTING PIPELINES AND UTILITIES.

LOCATIONS, ELEVATIONS, AND DIMENSIONS OF EXISTING UTILITIES,

STRUCTURES, AND OTHER FEATURES ARE SHOWN ACCORDING TO THE

BEST INFORMATION AVAILABLE AT THE TIME OF THE PREPARATION OF

THESE DRAWINGS, BUT DO NOT PURPORT TO BE ABSOLUTELY CORRECT

OR ACCURATE. THE CONTRACTOR SHALL VERIFY THE LOCATIONS,

ELEVATIONS, AND DIMENSIONS OF ALL EXISTING UTILITIES, STRUCTURES,

AND OTHER FEATURES AFFECTING THE WORK. SHOULD THE

CONTRACTOR IDENTIFY ANY UTILITIES, STRUCTURES OR OTHER

FEATURES NOT SHOWN ON THE PLANS, THE CONTRACTOR SHALL NOTIFY

THE ENGINEER. ANYTHING NOT SHOWN ON THESE DRAWINGS SHALL NOT

CONSTITUTE AN EXTRA, UNLESS RECOMMENDED BY THE ENGINEER AND

APPROVED BY THE OWNER.

4. PROJECT SHALL BE CONSTRUCTED TO MEET THE REQUIREMENTS OF

THE STATE OF COLORADO DESIGN CRITERIA FOR POTABLE WATER

SYSTEMS PUBLISHED BY THE COLORADO DEPARTMENT OF PUBLIC

HEALTH AND ENVIRONMENTS WATER QUALITY CONTROL DIVISION,

LATEST EDITION.

5. ANY CHANGES OF MATERIAL OR DEVIATIONS FROM THE APPROVED

PLANS OR THE PROJECT SPECIFICATIONS MUST BE DONE WITH WRITTEN

PERMISSION FROM THE NTM DISTRICT ENGINEER.

6. ALL UTILITIES SHALL BE KEPT IN OPERATION EXCEPT WITH THE EXPRESS

WRITTEN CONSENT OF THE CITY OF CRAIG. IT IS THE CONTRACTORS

RESPONSIBILITY TO PRESERVE EXISTING UTILITIES. ANY AND ALL

DAMAGE TO EXISTING UTILITIES AS A RESULT OF THE CONTRACTOR'S

ACTIONS SHALL BE REPAIRED IMMEDIATELY AT THE CONTRACTOR'S

EXPENSE.

7. USE EXTREME CAUTION WHEN WORKING NEAR OVERHEAD OR

UNDERGROUND POWER, GAS, OR OTHER UTILITIES SO AS TO SAFELY

PROTECT ALL PERSONNEL AND EQUIPMENT.

8. ALL WORK IN THE RIGHT-OF-WAY SHALL INCLUDE TRAFFIC CONTROL. ALL

BARRICADING AND TRAFFIC CONTROL DEVICES OR METHODS USED

DURING CONSTRUCTION SHALL BE IN ACCORDANCE WITH LOCAL AND

CDOT STANDARDS.

9. THE CONTRACTOR SHALL CONTACT COLORADO 811 AT 1-800-922-1987

WITH REQUIRED NOTICE PRIOR TO ANY EXCAVATION TO OBTAIN UTILITY

LOCATES. UTILITY LOCATIONS, WHETHER OR NOT SHOWN ON THESE

DRAWINGS, IN NO WAY RELIEVES THE CONTRACTOR FROM THE

RESPONSIBILITY OF CALLING FOR AND OBTAINING UTILITY LOCATIONS

FROM THE APPROPRIATE AUTHORITIES PRIOR TO BEGINNING

EXCAVATION

10. THE NOTES ON THIS SHEET AND THE STRUCTURAL GENERAL NOTES ARE

GENERAL AND APPLY TO THE ENTIRE PROJECT. QUESTIONS SHOULD BE

SUBMITTED TO THE ENGINEER AND ANSWERED IN WRITING PRIOR TO

CONSTRUCTION.

11. CONTRACTOR SHALL FIELD VERIFY ALL DIMENSIONS AND ELEVATIONS.

SUBMIT REQUIRED CHANGES FOR APPROVAL.

12. CONTRACTOR TO COMPLY WITH THE LIMITS OF CONSTRUCTION.

13. CONTRACTOR WILL BE RESPONSIBLE FOR CLEANUP OF SEDIMENT AND

CONSTRUCTION DEBRIS TRACKED ONTO ADJACENT PAVED ROADS AND

ACCESS AREAS.

14. CITY OF CRAIG WILL REMOVE LEVEL SENSING INSTRUMENTATION AND

THE TANK MIXER FROM THE TANK PRIOR TO CONSTRUCTION.

15. REFER TO SHEET NOTES AND PROJECT SPECIFICATIONS FOR DETAILED

MATERIAL REQUIREMENTS.

16. NO HOLES, OPENINGS, OR ALTERATIONS TO THE TANK MAY BE MADE

WITHOUT PRIOR WRITTEN APPROVAL OF THE ENGINEER, OR AS SHOWN

ON THE DRAWINGS.

17. CONTRACTOR WILL BE RESPONSIBLE FOR RESTORING DISTURBED

AREAS PRIOR TO FINAL COMPLETION.

18. CLEANING AND DISINFECTION OF THE TANK IS THE CONTRACTORS

RESPONSIBILITY. DISINFECT THE TANK AND PIPING IN ACCORDANCE WITH

AWWA C652, LATEST EDITION.

GENERAL NOTES CONTINUED:

19. OWNER TO HIRE A THIRD-PARTY COATING INSPECTOR AND WELDING

INSPECTOR. CONTRACTOR RESPONSIBLE FOR SCHEDULING INSPECTORS

AND PROVIDING NECESSARY ACCESS TO PERFORM INSPECTIONS.

20. CONTRACTOR WILL BE RESPONSIBLE FOR THE COMPLETION OF RECORD

DRAWINGS. A SET OF FOR-CONSTRUCTION DRAWINGS SHALL BE KEPT ON

SITE WITH REDLINES FOR AS-CONSTRUCTED CONDITION OF NEW WORK.

SUBMITTALS TO BE PROVIDED FOR ENGINEER REVIEW:

REFER TO PROJECT SPECIFICATIONS FOR SUBMITTAL REQUIREMENTS. NOT

ALL REQUIRED SUBMITTALS ARE LISTED BELOW.

1. LOCATION AND SIZE OF DOOR SHEET, ILLUSTRATING LOCATION OF

NEARBY VERTICAL AND HORIZONTAL WELD SEAMS. DOOR SHEET TO

COMPLY WITH THE REQUIREMENTS OF API 653-14 FOR SHELL PLATE

INSTALLATION.

2. FABRICATION AND ERECTION DRAWINGS SHOWING A COMPLETE

MATERIAL LIST WITH ASTM DESIGNATION AND WELD SYMBOLS,

INDICATING SHOP VERSUS FIELD WELDING FOR ALL COMPONENTS OF

THE CENTER COLUMN CAPITAL, HATCH RISER, VENT RISER, DRAIN SUMP,

AND WELDED ON PATCH PLATES.

3. PRODUCT DATA SHEETS FOR INTERIOR AND EXTERIOR COATING

SYSTEMS.

4. PRODUCT DATA SHEETS FOR EXTERIOR JOINT REPAIR SYSTEM.

5. PRODUCT DATA SHEET FOR FLEXIBLE JOINT SEALANT.

6. NONDESTRUCTIVE TESTING COMPANY QUALIFICATIONS,

CERTIFICATIONS, AND COMPLETE MAGNETIC FLUX LEAKAGE SCAN

REPORT WITH AUTOCAD FILE OF FLOOR PLATE AND RECOMMENDED

REPAIRS.

7. WELDER QUALIFICATIONS, PROCEDURES, CERTIFICATIONS AND WELD

MATERIALS.

8. VENT AND ACCESS HATCH FABRICATION DRAWINGS AND WARRANTY

INFORMATION.

9. CENTER COLUMN CAPITAL AND DRAIN SUMP FABRICATION SHOP

DRAWINGS.

10. COMPLETE DESIGN AND INSTALLATION SUBMITTAL FOR AN IMPRESSED

CURRENT CATHODIC PROTECTION SYSTEM.

11. TANK AND PIPING DISINFECTION PLAN.

INSPECTION, TESTING, AND QUALITY ASSURANCE:

1. STRUCTURAL STEEL CONSTRUCTION WILL BE INSPECTED IN

ACCORDANCE WITH THE INTERNATIONAL BUILDING CODE (IBC) SECTION

1704.3, AND TABLE 1704.3.

2. THE OWNER WILL HIRE AN AWS CERTIFIED WELDING INSPECTOR TO

PERFORM WELD INSPECTIONS AS NOTED IN IBC TABLE 1704.3, ITEM 4 AND

5, IN ADDITION TO ITEMS NOTED IN THE DOCUMENTS TO BE INSPECTED

BY A WELD INSPECTOR.

3. SURFACE PREPARATION AND COATINGS SHALL BE INSPECTED BY A NACE

CERTIFIED COATING INSPECTOR HIRED BY THE OWNER.

GENERAL NOTES

AND

ABBREVIATIONS

G001

BID SET

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AutoCAD SHX Text Sheet No

PO BOX 3741

BASALT, COLORADO 81621

COLORADO DEPARTMENT OF PUBLIC

HEALTH

4300 CHERRY CREEK DRIVE SOUTH, B2

DENVER, COLORADO 80246-1530

GLEN ERIE SOUTH

WATER STORAGE

TANK

REHABILITATION

PROJECT

CITY OF CRAIG

300 W 4TH ST

CRAIG, COLORADO 81625

Revision/Issue Date

Checked By:

Drawn By:

Project No.:

No.

2025-COC-GES

TAW

WWS

05.19.2025

N

SCALE BASED ON FULL-SIZE

22x34 DRAWING SHEET

1" = 200'

0 200' 400'

EXISTING 10"Ø INLET / OUTLET

BR

YA

N

W

AY

EXISTING 8"Ø

DRAIN / OVERFLOW

GLEN ERIE

NORTH TANK

EXISTING 8" DRAIN / OVERFLOW;

FLAP GATE INSTALLED AT DAYLIGHT

GLEN ERIE

SOUTH TANK

E 11TH ST

LOCKED

ACCESS GATE

GENERAL SITE

PLAN

G002

SECURITY FENCING, TYP

BID SET

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AutoCAD SHX Text Sheet No

PO BOX 3741

BASALT, COLORADO 81621

COLORADO DEPARTMENT OF PUBLIC

HEALTH

4300 CHERRY CREEK DRIVE SOUTH, B2

DENVER, COLORADO 80246-1530

GLEN ERIE SOUTH

WATER STORAGE

TANK

REHABILITATION

PROJECT

CITY OF CRAIG

300 W 4TH ST

CRAIG, COLORADO 81625

Revision/Issue Date

Checked By:

Drawn By:

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No.

2025-COC-GES

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STRUCTURAL STEEL INSTALLATION AND INSPECTION (CONTINUED):

5. FIELD WELDING SHALL BE INSPECTED VISUALLY AND BY NON-DESTRUCTIVE TESTING BY AN AWS

CERTIFIED WELDING INSPECTOR.

6. ACCEPTANCE CRITERIA FOR VISUALLY INSPECTED WELDS SHALL BE IN ACCORDANCE WITH

TABLE 6.1 OF AWS D1.1.

7. 100% OF THE FIELD INSTALLED FILLET WELDS SHALL BE VISUALLY INSPECTED UNLESS THE

WELDING INSPECTOR IDENTIFIES GROUNDS FOR MORE RIGOROUS INSPECTION AND NDS

TESTING.

GENERAL TANK NOTES:

1. ACCESS SHALL BE LIMITED TO AUTHORIZED PERSONNEL ONLY, WITH APPROPRIATE SIGNAGE.

2. ALL ACCESS LADDERS SHALL BE FITTED WITH A LOCKING SECURITY GATE.

3. ALL ROOF ACCESS HATCHES AND VENTS SHALL BE FITTED WITH OWNER SUPPLIED LOCKS.

4. LEVEL SENSING EQUIPMENT TO BE PROVIDED BY THE OWNER.

5. ALL MATERIALS USED IN CONSTRUCTION SHALL BE ANSI/NSF 61 AND ANSI/NSF 600 CERTIFIED.

6. OVERFLOW WEIR SHALL PROVIDE A MINIMUM OF 1'-0" FREEBOARD.

7. VENTS MUST BE SCREENED WITH 12 OR 16 MESH SCREEN (OPENINGS LESS THAN 0.07 INCHES).

ABOVE GRADE TANK VENTS MUST PROVIDE A MINIMUM OF 24-INCHES OF CLEARANCE FROM THE

ROOF SURFACE TO THE VENT OPENING.

MATERIAL NOTES:

STRUCTURAL STEEL MATERIALS:

1. REFER TO THE DIVISION 05 SPECIFICATIONS FOR ADDITIONAL REQUIREMENTS.

2. NEW STRUCTURAL STEEL ITEMS SHALL CONFORM TO THE FOLLOWING STANDARDS AND

REQUIREMENTS.

CARBON STEEL WIDE FLANGES: ASTM A992, FY = 50 KSI

CARBON STEEL CHANNELS, ANGLES, PLATES: ASTM A36, FY = 36 KSI

PIPES: ASTM A53, GRADE B, FY = 35 KSI

HSS: ASTM A500, GRADE B, FY 46 KSI

WELDING ELECTRODES: E7018, AWS A5.1

2. NEW 316 STAINLESS STEEL ITEMS SHALL CONFORM TO THE FOLLOWING STANDARDS AND

REQUIREMENTS.

STAINLESS STEEL BOLT ASSEMBLIES: BOLTS: ASTM F593

STAINLESS STEEL FLAT PLATE: ASTM A240

STAINLESS STEEL SOLID ROUND BAR: ASTM A276

WELDING PROCEDURE SPECIFICATION: AWS D1.6.

WELDING ELECTRODES: E316L-16 (SMAW, AWS A5.4), ER316L (GTAW TIG FILLER ROD, AWS A5.9)

AND ER316L (GMAW MID WIRE, AWS A5.9)

3. FIELD WELDING WILL BE INSPECTED VISUALLY BY THIRD-PARTY OWNER HIRED AWS CERTIFIED

WELDING INSPECTOR.

ALUMINUM:

1. STRUCTURAL ALUMINUM YIELD STRENGTH, FY = 36 KSI.

2. ALUMINUM ALLOY 6061-T6.

3. WELDING PROCEDURE SPECIFICATION: AWS D1.2.

4. WELDING ELECTRODES: ER5356 (AWS A5.10).

SURFACE PREPARATION AND COATINGS:

1. REFER TO SPECIFICATION 09 97 13 FOR SURFACE PREPARATION AND COATING REQUIREMENTS.

2. FIELD APPLIED COATINGS SHALL BE INSPECTED BY OWNER HIRED NACE CERTIFIED INSPECTOR.

ACCESS HATCHES:

1. BILCO 30"x36" ALUMINUM, SINGLE-LEAF ROOF ACCESS HATCH. ALL HATCH HARDWARE AND

COMPONENTS TO BE 316 STAINLESS STEEL.

2. AVOID CONTACT BETWEEN CONCRETE AND ALUMINUM SURFACES TO PREVENT ADVERSE

CHEMICAL REACTION AND PRODUCT FAILURE. INSULATE AREAS BY COATING ALUMINUM

MEMBERS AS REQUIRED IN THE SPECIFICATIONS.

CATHODIC PROTECTION SYSTEM:

1. IMPRESSED CURRENT CATHODIC PROTECTION SYSTEM DESIGNED AND INSTALLED BY

QUALCORR ENGINEERING.

STRUCTURE DESIGN LOADS:

1. THE FOLLOWING DESIGN CODES AND STANDARDS WERE USED.

2. DESIGN CODES:

A. INTERNATIONAL BUILDING CODE (IBC), 2018.

B. ASCE 7-16 MINIMUM DESIGN LOADS FOR BUILDINGS AND OTHER STRUCTURES.

C. AWWA D100 WELDED CARBON STEEL TANKS FOR WATER STORAGE.

D. API 653 TANK INSPECTION, REPAIR, ALTERATION, AND RECONSTRUCTION.

3. DESIGN LOADS:

A. DEAD LOAD MEMBER SELF WEIGHT

B. ROOF LIVE LOAD 48 PSF

C. MINIMUM ROOF SNOW LOAD 40 PSF (CITY OF CRAIG)

EXPOSURE FACTOR 0.9

THERMAL FACTOR 1.0

IMPORTANCE FACTOR 1.20

D. WIND

WIND SPEED 115 MPH (3-SECOND GUST)

EXPOSURE B

SURFACE ROUGHNESS B

TOPOGRAPHIC FACTOR 1.0

WIND PRESSURES ±30.0 PSF (SIDEWALL), AWWA D100

±30.0 PSF (ROOF), AWWA D100

E. SEISMIC

OCCUPANCY IV

IMPORTANCE FACTOR, Ie 1.50

SOIL SITE CLASS D, ASSUMED

Ss 0.332g

S1 0.077g

SDS 0.340g

SD1 0.123g

SEISMIC DESIGN CATEGORY B (CITY OF CRAIG)

MAGNETIC FLUX LEAKAGE SCAN AND FLOOR PLATE REPAIR NOTES:

1. FOLLOWING INTERIOR CLEANING, CONTRACTOR TO DRY FLOOR PLATES AND ALLOW ACCESS TO PREMIERE NDT SERVICES, INC. TO PERFORM MFL TESTING. RESULTS WILL BE REVIEWED WITH

OWNER AND ENGINEER. ENGINEER WILL DEVELOP A REPAIR PLAN BASED ON RESULTS OF MFL

SCAN.

2. ALL BOTTOM SURFACE DISCONTINUITIES SHALL BE PATCHED WITH WELDED ON PATCH PLATES PER THE REQUIREMENTS OF API 653-14 AND THE DIRECTION OF THE ENGINEER. TOP SURFACE

DISCONTINUITIES WILL BE REPAIRED WITH WELDED ON PATCH PLATES OR BY DEPOSITION OF

WELD METAL FOLLOWED BY EXAMINATION TESTING IN ACCORDANCE WITH API 653-14, SECTION

12.1.7.3 AND PER DIRECTION OF THE ENGINEER.

3. QUANTITIES LISTED IN THE BID FORM ARE ESTIMATED FOR BIDDING PURPOSES. PER THE

REQUIREMENTS OF API 653-14, FLOOR PATCH PLATE SIZES WILL VARY BASED ON LOCATION OF

DISCONTINUITY TO WELD SEAM, SHELL PLATE, OTHER PATCH PLATES, ETC. PAYMENT

APPLICATIONS SHALL BE BASED ON THE QUANTITY AND TOTAL SQUARE FOOTAGE OF WELDED

ON PATCH PLATES AND NUMBER OF DEPOSITION OF WELD METAL REPAIRS. THE CONTRACTOR IS RESPONSIBLE FOR VERIFYING EXISTING CONDITIONS AND QUANTITIES BASED ON ACTUAL FIELD

CONDITIONS AS MARKED BY THE THIRD-PARTY NON-DESTRUCTIVE TESTING COMPANY.

STRUCTURAL STEEL INSTALLATION AND INSPECTION:

1. FURNISH AND INSTALL TEMPORARY BRACING FOR NEW FRAMING AS NECESSARY TO PROVIDE

STABILITY DURING ERECTION AND TO PREVENT DAMAGE OR DISTORTION TO THE FRAME DUE TO

WIND, SEISMIC, OR ERECTION FORCES. REMOVE TEMPORARY BRACING WHEN ERECTION IS

COMPLETE.

2. UNLESS OTHERWISE NOTED, ALL BOLTED CONNECTIONS ARE BEARING TYPE, AND SHALL BE

TIGHTENED TO THE SNUG TIGHT CONDITION.

3. ALL HIGH STRENGTH BOLTS SHALL HAVE THE TURNED PORTION MARKED WITH REFERENCE TO

THE STEEL BEING CONNECTED AFTER THE NUT HAS BEEN MADE SNUG AND PRIOR TO FINAL

TIGHTENING.

4. FIELD WELDING SHALL BE DONE ONLY WHERE SHOWN ON THE DRAWINGS OR SPECIFIED AND

ONLY BY WELDERS CURRENTLY QUALIFIED AND APPROVED FOR THE PROCEDURES USED. NO

WELDING SHALL BE COMPLETED WHEN SURFACES ARE WET, EXPOSED TO RAIN OR WIND, OR

WHEN WELDERS ARE EXPOSED TO INCLEMENT CONDITIONS THAT WILL AFFECT THE QUALITY OF

WORKMANSHIP.

THREADED ANCHOR STUDS, WEDGE ANCHORS, AND EPOXY ADHESIVE:

1. DRILL AND EPOXY ANCHORS: HILTI HEADED ANCHOR STUDS 316 STAINLESS STEEL.

2. WEDGE ANCHORS: HILTI KWIK BOLT TZ2 WEDGE ANCHOR 316 STAINLESS STEEL.

3. EPOXY ADHESIVE SHALL BE HILTI HIT-RE 500 V3.

WELDED STEEL PIPE AND FLANGES:

1. STEEL PIPE FLANGES FOR WATERWORKS SERVICES PER AWWA C207, CLASS B OR D.

WELDED STEEL PIPE, SCHEDULE 40 PER AWWA C200.

TANK SCOPE OF WORK NOTES:

1. THE FOLLOWING IS AN OUTLINE OF THE KEY PROJECT SCOPE OF WORK TASKS. THE COMPLETE

PROJECT SCOPE OF WORK INCLUDES OTHER ITEMS WHICH MAY BE DOCUMENTED IN OTHER

PORTIONS OF THE REHABILITATION DOCUMENTS. THE ACTIVITIES LIST PRESENTS SCOPE OF

WORK ONLY. SEQUENCING OF THE WORK IS THE RESPONSIBILITY OF THE CONTRACTOR. SOME

OF THESE ITEMS ARE CONSIDERED BID ALTERNATES, REFER TO THE BID FORM.

A. FOLLOWING THE OWNER'S DRAINING OF THE TANK, THE CONTRACTOR MAY CREATE

ACCESS TO THE TANK INTERIOR TO BEGIN REHABILITATION WORK BY CUTTING A DOOR

SHEET. A DOOR SHEET SUBMITTAL IS REQUIRED FOR REVIEW AND APPROVAL PRIOR TO

CREATING ACCESS.

B. CLEAN ALL INTERIOR SURFACES AND PIPING. CLEAN AND DRY FLOOR PLATES.

C. PREMIERE NDT SERVICES, INC. TO PERFORM A MAGNETIC FLUX LEAKAGE (MFL) SCAN OF

THE TANK FLOOR PLATES.

D. ENGINEER TO REVIEW THE MFL SCAN RESULTS AND PREPARE A FLOOR PLATE REPAIR

PLAN.

E. INSTALL 1

4" THICK WELDED ON PATCH PLATES PER DEVELOPED REPAIR PLAN. INSTALL

WELD DEPOSITION REPAIRS PER THE FLOOR PLATE REPAIR PLAN.

F. DEMO AND REMOVE EXISTING COLUMN CAPITAL; FABRICATE AND INSTALL BY WELDING

NEW OPEN FRAMING COLUMN CAPITAL.

G. DEMO AND REMOVE EXISTING ROOF VENT AND STEEL RISER; FABRICATE AND INSTALL BY

WELDING NEW VENT RISER AND VENT.

H. DEMO AND REMOVE EXISTING ROOF HATCH AND RISER; FABRICATE AND INSTALL BY

WELDING NEW HATCH RISER AND NEW ROOF ACCESS HATCH.

I. DEMO AND REMOVE EXISTING INTERIOR LADDER; FABRICATE AND INSTALL BY WELDING

NEW INTERIOR LADDER.

J. MODIFY EXISTING OVERFLOW WEIR.

K. SELECTIVELY DEMOLISH EXISTING FLOOR PLATE AROUND DRAIN PIPE; INSTALL BY

WELDING NEW RECESSED DRAIN SUMP.

L. SURFACE PREPARE AND RECOAT THE COMPLETE INTERIOR OF THE TANK AND PIPING PER

SPECIFICATION 09 97 13. INSTALL FLEXIBLE SEALANT TO THE UNDERSIDE OF ROOF PLATE

UNWELDED SEAMS AND ROOF TO SHELL PERIMETER.

M. PROVIDE ACCESS TO THIRD PARTY COATING INSPECTOR FOR SURFACE PREPARATION

AND COATING INSPECTIONS. TO INCLUDE HOLIDAY TESTING OF ALL INTERIOR SURFACES.

N. CURE INTERIOR PER MANUFACTURER REQUIREMENTS. HEAT AND VENTILATION ARE THE

RESPONSIBILITY OF THE CONTRACTOR, IF REQUIRED, TO MEET COMPLETION DATES.

O. COORDINATE DESIGN AND INSTALLATION OF NEW IMPRESSED CURRENT CATHODIC

PROTECTION SYSTEM WITH QUALCORR ENGINEERING.

P. EXTERIOR: PERFORM LEAD ABATEMENT, SURFACE PREPARE AND RECOAT THE COMPLETE

EXTERIOR AND APPURTENANCES PER SPECIFICATION 09 97 13.

Q. EXTERIOR: FABRICATE AND INSTALL A SWINGING AND LOCKING SECURITY GATE AT THE

BASE OF THE EXISTING LADDER CAGE.

R. FOLLOWING FINAL INSPECTION BY OWNER, ENGINEER AND INSPECTOR, PERFORM FINAL

CLEAN AND DISINFECT.

S. EXPOSE CONCRETE RINGWALL AND COMPLETE EXTERIOR JOINT REPAIR. VISCOTAQ TANK

CHIME SEALING SYSTEM. REFER TO TECHNICAL SPECIFICATIONS.

STRUCTURAL

GENERAL NOTES

S001

BID SET

AutoCAD SHX Text Prepared For

AutoCAD SHX Text Project

AutoCAD SHX Text Client

AutoCAD SHX Text Sheet No

PO BOX 3741

BASALT, COLORADO 81621

COLORADO DEPARTMENT OF PUBLIC

HEALTH

4300 CHERRY CREEK DRIVE SOUTH, B2

DENVER, COLORADO 80246-1530

GLEN ERIE SOUTH

WATER STORAGE

TANK

REHABILITATION

PROJECT

CITY OF CRAIG

300 W 4TH ST

CRAIG, COLORADO 81625

Revision/Issue Date

Checked By:

Drawn By:

Project No.:

No.

2025-COC-GES

TAW

WWS

05.19.2025

SCALE BASED ON FULL-SIZE

22x34 DRAWING SHEET

1/8" = 1'-0"

FLOOR PLAN

SCALE: 1/8" = 1'-0"

N

ROOF PLAN

SCALE: 1/8" = 1'-0"

TANK

TANK INSIDE DIAM 66'-0"

8"Ø CENTER COLUMN

AND FOOTING

EXISTING 24"Ø

SHELL MANWAY

EXISTING 24"Ø

SHELL MANWAY

TANK INSIDE DIAM 66'-0"

ROOF

FRAMING

VIEW

ROOF

SHELL

VIEW

ROOF

FRAMING

VIEW

ROOF

SHELL

VIEW

NEW 30" x 36" BILCO S-50

ROOF ACCESS HATCH ON

NEW STEEL RISER W/ NEW

INTERIOR LADDER BELOW,

RE: 1 AND 5/S501

NEW 24" ALUMINUM VENT

ON NEW STEEL RISER,

RE: 2/S501 AND S502

0 8' 16'4'B S301

EXISTING WIDE FLANGE ROOF

FRAMING RAFTERS, QTY 34

10"Ø COMMON

INLET/OUTLET W/

6" SILT STOP

8"Ø DRAIN AND NEW

RECESSED DRAIN

SUMP, RE: 3/S501

8"Ø OVERFLOW

A S301

EXISTING EXTERIOR

LADDER AND CAGE

EXISTING ROOF HANDRAIL

TANK

EXISTING 24"Ø

SHELL MANWAY

EXISTING 24"Ø

SHELL MANWAYC

S301

FLOOR AND ROOF

PLANS

S101

BID SET

A S301

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PO BOX 3741

BASALT, COLORADO 81621

COLORADO DEPARTMENT OF PUBLIC

HEALTH

4300 CHERRY CREEK DRIVE SOUTH, B2

DENVER, COLORADO 80246-1530

GLEN ERIE SOUTH

WATER STORAGE

TANK

REHABILITATION

PROJECT

CITY OF CRAIG

300 W 4TH ST

CRAIG, COLORADO 81625

Revision/Issue Date

Checked By:

Drawn By:

Project No.:

No.

2025-COC-GES

TAW

WWS

05.19.2025

SCALE BASED ON FULL-SIZE

22x34 DRAWING SHEET

A SECTION

SCALE: 1/4" = 1'-0"

1/4" = 1'-0"

NOTES:

1. PERFORM LEAD ABATEMENT ON EXTERIOR.

2. SURFACE PREPARE INTERIOR AND EXTERIOR OF TANK TO SSPC-SP 10 TO BARE METAL.

3. COAT TANK, PIPING, AND APPURTENANCES PER SPECIFICATION 09 97 13.

4. INSTALL SIKAFLEX 1A FLEXIBLE SEALANT ON THE UNDERSIDE OF UNWELDED ROOF

PLATES AND THE ROOF-TO-SHELL JOINT.

TANK SECTIONS

S301

TANK INSIDE DIAM 66'-0"

EXISTING

FINISH GRADE

EXISTING W6 ROOF FRAMING

GIRDERS, QTY OF 34

3/4

EXISTING 8"Ø

CENTER COLUMN

SLOPE SLOPE

EXISTING FLOOR PLATE

VISCOTAQ TANK CHIME REPAIR,

RE: SPECIFICATIONS

TANK

NEW 24"Ø ALUMINUM

ROOF VENT, RE: S502

NEW 24"Ø CARBON

STEEL RISER, RE: 2/S501

DEMO EXISTING SOLID CONE CAPITAL

AND INSTALL NEW OPEN FRAMING

CAPITAL, RE: B/S301

B SECTION

SCALE: 3/8" = 1'-0"

0 4' 6'2'

0 4' 8'2'

3/8" = 1'-0"

NEW 24"Ø ALUMINUM VENT,

RE: S502

NEW 24"Ø CARBON

STEEL RISER

3'-0" EXISTING ROOF PLATE BEYOND

L4x4x1/4 ROLLED ANGLE

L3x3x3/16 - QTY 8 EQUALLY

SPACED AROUND ROLLED ANGLE

1/4

5'-0"

2'-6"

NOTES:

1. HEIGHT OF NEW COLUMN CAPITAL SHALL BE

FIELD VERIFIED PRIOR TO FABRICATION.

HEIGHT TO MATCH REMOVED CONE.

2. OPEN FRAMING CENTER COLUMN CAPITAL

SHALL BE FABRICATED FROM CARBON

STEEL (ASTM A36) ANGLES AND FLAT PLATE.

3. SURFACE PREPARE FRAMING TO SSPC-SP 10

TO BARE METAL TO REMOVE MIL SCALE.

4. COAT PER SPECIFICATION 09 97 13.

C SECTION

SCALE: 1/4" = 1'-0"

20'-0"

SHELL

HEIGHT

EXISTING ROOF PLATE

3/4

EXISTING TANK

FLOOR EXISTING FINISH GRADE

CARBON STEEL RISER FLANGE TO

MATCH VENT FLANGE, RE: S502

6"

EXISTING ROOF HANDRAIL,

EACH SIDE OF LADDER

NEW 30" x 36" BILCO S-50 ALUMINUM

ACCESS HATCH ON NEW CARBON

STEEL RISER, RE:1/S501

3'-0"

6"

3'-6" EXISTING EXTERIOR

LADDER AND CAGE

INSTALL FABRICATED SWINGING

AND LOCKING SECURITY GATE,

RE: 4/S501

EXISTING TANK SHELL

EXISTING ROOF PLATE

EXISTING 8"Ø COLUMN

20'-0"

SHELL

HEIGHT

33'-0" 33'-0"

6" DEMO AND REMOVE

3'-0"

3'-10"

1'-0" FREEBOARD

*SELECTIVELY DEMOLISH THE

TOP 6" OF THE EXISTING

OVERFLOW WEIR TO PROVIDE A

MINIMUM OF 12" OF FREEBOARD

FROM ROOF TO SHELL JOINT

EXISTING CIRCULAR WEIR

EXISTING WEIR SUPPORTS

EXISTING 8"Ø OVERFLOW PIPE

3/16 3/16 1/4

1" THICK x 18"Ø PLATE

L3x3x3/16, QTY 8, EQUALLY

SPACED AS SHOWN

1" THICK x

18"Ø PLATE

8"Ø CENTER

COLUMN,

BELOW

BID SET

NEW INTERIOR

LADDER, RE:5/S501

5"

2 - 1/2"Ø BOLTS PER RAFTER

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PO BOX 3741

BASALT, COLORADO 81621

COLORADO DEPARTMENT OF PUBLIC

HEALTH

4300 CHERRY CREEK DRIVE SOUTH, B2

DENVER, COLORADO 80246-1530

GLEN ERIE SOUTH

WATER STORAGE

TANK

REHABILITATION

PROJECT

CITY OF CRAIG

300 W 4TH ST

CRAIG, COLORADO 81625

Revision/Issue Date

Checked By:

Drawn By:

Project No.:

No.

2025-COC-GES

TAW

WWS

05.19.2025

1 DETAIL

SCALE: 1" = 1'-0"

SCALE BASED ON FULL-SIZE

22x34 DRAWING SHEET

2 DETAIL

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

3/8" = 1'-0"

1" = 1'-0"

HATCH

EXISTING

HANDRAIL

GASKET PROVIDED BY

HATCH MANUFACTURER

STAINLESS STEEL

BOLTS; QTY AND SIZE

PER HATCH

MANUFACTURER

30" x 36" ALUMINUM BILCO

S-50 ACCESS HATCH

SELECTIVELY DEMO

EXISTING ROOF PLATE TO

CREATE A 30" x 36" OPNG AT

EXISTING 24" SQUARE OPNG

NOTES:

1. HATCH RISER SHALL BE FABRICATED OF ASTM A36 CARBON STEEL 1/4" FLAT PLATE.

2. PROVIDE A MINIMUM OF 4" OF CLEARANCE ON THE LOW SIDE.

3. FRAME FLANGE TO BE 3-1/2" WIDE TO MATCH BILCO HATCH FLANGE.

4. WELD FRAME TO EXISTING ROOF PLATE.

5. FIELD LOCATE OPENING BETWEEN ROOF FRAMING RAFTERS, CONFIRM LOCATION

WITH OWNER AND ENGINEER PRIOR TO INSTALLATION.

6. SURFACE PREPARE RISER FRAME TO SSPC-SP 10 TO REMOVE MIL SCALE. COAT PER

SPECIFICATION 09 97 13.

7. ALUMINUM HATCH TO BE SURFACE PREPARED AND COATED PER SPECIFICATION 09

97 13.

NEW ALUMINUM VENT,

RE: S502

TANK

1/4

NEW 1/4" STEEL RISER

NOTES:

1. VENT RISER SHALL BE FABRICATED OF ASTM A36 CARBON STEEL 1/4" FLAT

PLATE OR SCHEDULE 40 STEEL PIPE.

2. WELD RISER TO EXISTING ROOF PLATE.

3. SURFACE PREPARE RISER TO SSPC-SP 10 TO REMOVE MIL SCALE. COAT PER

SPECIFICATION 09 97 13.

4. ALUMINUM VENT TO BE SURFACE PREPARED AND COATED PER SPECIFICATION

09 97 13.

5. REFER TO DRAWING SHEET S502 FOR VENT DETAILS.

0 1' 2'1/2'

1/4

1'-6"

FIELD VERIFY

3'-0"

4" 3'-0"

6"

3'-6"

2'-0"

DIAM

MIN 1/8" NEOPRENE GASKET

8 - 3/4"Ø SS BOLTS

3 DETAIL

SCALE: 1/2" = 1'-0" 5 DETAIL

SCALE: 3/8" = 1'-0"

NOTES:

1. ALL LADDER COMPONENTS SHALL BE ASTM A36 CARBON STEEL.

2. FIELD VERIFY DIMENSIONS PRIOR TO PREPARATION OF FABRICATION SHOP DRAWINGS.

3. LENGTH OF SUPPORTS WILL DEPEND ON LOCATION OF FIELD LOCATED HATCH OPENING.

4. FIELD WELD TO EXISTING TANK SHELL.

5. SURFACE PREPARE NEW EXTERIOR LADDER AND SUPPORTS TO SSPC-SP 10 TO BARE

METAL TO REMOVE MIL SCALE.

6. COAT PER SPECIFICATION 09 97 13.

20 LADDER

RUNGS, EQ

SPACED, 12"

MAX SPACING

LADDER

1'-4"

20'-11"

1/4

LADDER SUPPORT,

3/8" x 3" x 2'-0" PLATE

SIDE RAILS,

3/8" x 3" PLATE

3'-0"

6 LADDER

SUPPORTS EQ

SPACED AT 3'-6"

EXISTING

FLOOR PLATE

1'-11" FIELD VERIFY 9"

4"

1/2" = 1'-0" 0 2' 4'1'

0 4' 6'2'

PIPE

PIPE

EXISTING CONCRETE

RINGWALL

EXISTING CONCRETE

RINGWALL

EXISTING TANK SHELL

EXISTING TANK SHELL

1/4" x 24"Ø DOUBLER PLATE

4'-0"

4'-0"

~3'-0" FIELD VERIFY

EXISTING 8"Ø DRAIN

EXISTING FLOOR PLATE

6"

NOTES:

1. PRIOR TO CUTTING FLOOR PLATE, AND PRIOR TO FABRICATION OF NEW RECESSED STEEL DRAIN

SUMP, FIELD MEASURE TO LAYOUT DIMENSIONED SUMP.

2. USE 14" PLATE TO FABRICATE RECESSED DRAIN SUMP AND DOUBLER PLATES.

3. SEAL WELD ALL AROUND DRAIN PIPE AND FABRICATED DRAIN SUMP.

4. THIRD PARTY WELD INSPECTOR TO INSPECT WELDS AND PERFORM DYE-PENETRATE TESTING.

5. TRIM EXISTING DRAIN PIPE TO APPROXIMATELY 1" ABOVE NEW DOUBLER. PLATE.

TANK DETAILS

S501

BID SET4 DETAIL

SCALE: 1" = 1'-0"

1'-33 4"

R1'-2"

HINGE

HINGE

FABRICATE SECURITY GATE

FROM 1/4" x 2" FLAT PLATE

NOTES:

1. FIELD VERIFY EXISTING LADDER CAGE DIMENSIONS.

2. FABRICATE A CARBON STEEL LOCKING AND SWINGING SECURITY GATE TO CONNECT TO

AND FIT WITHIN THE EXISTING LADDER CAGE.

3. SURFACE PREPARE RISER TO SSPC-SP 10 TO REMOVE MIL SCALE. COAT PER SPECIFICATION

09 97 13.

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AutoCAD SHX Text Sheet No

PO BOX 3741

BASALT, COLORADO 81621

COLORADO DEPARTMENT OF PUBLIC

HEALTH

4300 CHERRY CREEK DRIVE SOUTH, B2

DENVER, COLORADO 80246-1530

GLEN ERIE SOUTH

WATER STORAGE

TANK

REHABILITATION

PROJECT

CITY OF CRAIG

300 W 4TH ST

CRAIG, COLORADO 81625

Revision/Issue Date

Checked By:

Drawn By:

Project No.:

No.

2025-COC-GES

TAW

WWS

05.19.2025

SCALE BASED ON FULL-SIZE

22x34 DRAWING SHEET

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

0 1' 1 1/2'1/2'EXISTING TANK ROOF PLATE

ASTM A36 1/4"

STEEL PLATE OR

24"Ø SCHEDULE 40

STEEL PIPE

1/4 1/4

3/16 3/16A

S502

VENT

ASTM A36 1/4"

STEEL PLATE

1/8" GASKET

8-1/2"Ø x 2" STAINLESS STEEL BOLTS

6061 ALUMINUM 0.19" PLATE

4" 6061 ALUMINUM PLATE

1/4" STAINLESS STEEL ROLLED PLATE

HOLE FOR OWNER SUPPLIED PADLOCK

B S502

DETAIL 1

DETAIL 2

A SECTION

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

1 DETAIL

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

B SECTION

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

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

2 DETAIL

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

24" INSIDE DIAMETER

3'-0"

6"

4 - 14" WIDE x 12" TALL

OPENINGS

4" 6061 ALUMINUM

PLATE

VENT

6061 ALUMINUM

0.19" PLATE

C S502

B S502

A S502

16 MESH STAINLESS STEEL

SCREEN; ATTACH TO RISER

WITH 2 PIPE CLAMPS

2'-3"

24" INSIDE

DIAMETER

8"

STAINLESS STEEL SCREEN:

316 STAINLESS STEEL MESH SCREEN: 16 x 16 SQUARE, 0.0455" x 0.0455" OPENING, 0.018" THICK WIRE DIAMETER, 51% OPEN AREA AS MANUFACTURED BY McNICHOLS OR

APPROVED EQUAL.

BIRD SCREEN:

3/4-INCH NO. 051 FLATTENED EXPANDED ALUMINUM

METAL BIRD SCREEN AS MANUFACTURED BY McNICHOLS

OR APPROVED EQUAL.

BIRD SCREEN

VENT

1/4" STAINLESS

STEEL ROLLED PLATE

1" TALL x 18" THICK

PLASTIC; RIVET TO

ALUMINUM RISER

6061 ALUMINUM

0.19" PLATE

2'-10" OUTSIDE

DIAMETER

2'-4"

3'-0" OUTSIDE

DIAMETER

4"

2'-0" I.D.

2'-7" O.D.

2'-5" BOLT DIAM.

8 - 9/16"Ø HOLES,

EQUALLY SPACED

STEEL FLANGE: ASTM A36

1/4" STEEL PLATE

ALUMINUM FLANGE: 6061

ALUMINUM 1/4" PLATE

6061 ALUMINUM 0.19" PLATE

STAINLESS STEEL 16 MESH SCREEN

VENT

1'-10" INSIDE

DIAM

2'-03

8" OUTSIDE

DIAMETER

VENT

6061 ALUMINUM

1" x 1/4" FLAT BAR

3/16 3/16

6061 ALUMINUM

0.19" PLATE

1"Ø SOLID BAR 6061

ALUMINUM

3/16 3/16

2'-03

8" OUTSIDE

DIAM

VENT DETAILS

S502

BID SET

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