Atch_2_Medicine_Lake_Obser_Tower_Drawings.pdf

SERVICE

FISH AND WILDLIFE

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U.S.

SERVICE

FISH AND WILDLIFE

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U.S.

U.S. FISH & WILDLIFE SERVICE

VICINITY MAP: NOT TO SCALE

APPROVAL SIGNATURES

REGIONAL ENGINEER

PROGRAM SUPERVISOR

ASS'T. REGIONAL DIRECTOR

FACILITIES

SAFETY

CULTURAL RESOURCES

NOTE TO BIDDERS:

ANY PRINT ACCOMPANYING THIS INVITATION TO BID MAY BE A REDUCED REPRODUCTION OF THE WORKING DRAWINGS. IF THE LINE BELOW DOES NOT MESURE SIX INCHES IN LENGTH, THE INDICATED SCALES ARE TO

BE ADJUSTED ACCORDINGLY.

6" LINE

UNITED STATES DEPARTMENT OF THE INTERIOR

FISH AND WILDLIFE SERVICE

REGION 6 ENGINEERING - DENVER, COLORADO

MEDICINE LAKE NWR

-DATE-

-DATE-

-DATE-

-DATE-

-DATE-

-DATE-

DESIGNED: HH DRAWN: HH CHECKED: KBH

DATE: 12/18/20 DRAWING #: 6R-##-##-##-###

SHERIDAN COUNTY MONTANA

MEDICINE LAKE

NATIONAL WILDLIFE REFUGE

C1COVER SHEET

100% DESIGN DRAWINGS

OBSERVATION TOWER

OBSERVATION TOWER

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mlemieux Rectangle mlemieux Rectangle mlemieux Rectangle mlemieux Rectangle mlemieux Rectangle mlemieux Rectangle

OWNER

ARCHITECTSTRUCTURAL

PROJECT INFORMATION:

FISH AND WILDLIFE SERVICE

223 NORTH SHORE ROAD

MEDICINE LAKE, MT, 59247

ATTN: ANDREW PETTIBONE

EMAIL : andrew_pettibone@fws.gov

TEL: (406)789-2305

JACKOLA ENGINEER & ARCHITECTURE, P.C.

129 WEST MAIN STREET, SUITE B-3

BOZEMAN, MT 59715

ATTN: MELISSA STEINER

TEL: (406) 586-0707

JACKOLA ENGINEER & ARCHITECTURE, P.C.

2250 HWY. 93 SOUTH

PO BOX 1134

KALISPELL, MT 59903

ATTN: KARL HENSHAW

TEL: (406) 755-3208

FAX: (406) 755-3218

DESIGN LEAD

DOWL

222 N. 32ED ST, SUITE 700

BILLINGS, MT 59101

ATTN: GARY ELWELL

EMAIL : GEIwell@dowl.com

TEL: (406) 861-9549

SITE LOCATION PLAN

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MEDICINE LAKE, MT.

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TITLE SHEET

HH PROJECT #:JEA_200705KBHHH

MEDICINE LAKE

OBSERVATION TOWER

MEDICINE LAKE NATIONAL WILDLIFE REFUGE

233 N. SHORE RD, MEDICINE LAKE, MT 59247

SHEET INDEX

NUMBER NAME ISSUE DATE

TITLE

T0.00 TITLE SHEET 2/22/21

T0.10 CODE SUMMARY 2/22/21

CIVIL

C1.00 SITE PLAN 2/22/21

ARCHITECTURE

A1.00 CAB PLANS AND DETAILS 2/22/21

A2.00 STAIR PLANS AND DETAILS 2/22/21

STRUCTURAL

S1.00 TOWER ELEVATION AND NOTES 2/22/21

S2.00 9TH LANDING AND FOUNDATION 2/22/21

S3.00 LANDINGS 2/22/21

S3.01 LANDINGS 2/22/21

S4.00 STAIRS 2/22/21

S4.01 STAIRS, DECK DETAIL 2/22/21

S4.02 HATCH DETAILS 2/22/21

4.

3.

2.

1.

GENERAL CONDITIONS GENERAL NOTES

1. CONTRACTOR TO REVIEW AND BECOME FAMILIAR WITH ALL EXISTING CONDITIONS PRIOR TO

COMMENCING WORK. ANY CONDITIONS NOT INDICATED ON CONTRACT DOCUMENTS ARE TO BE

REPORTED TO THE OWNER PRIOR TO BEGINNING WORK.

2. CONTRACTOR TO CONTACT LOCAL UTILITIES, IF NECESSARY, SUBMIT ALL APPLICABLE PERMIT

DOCUMENTS, QUALIFICATIONS, ETC., AND BE RESPONSIBLE FOR ALL FEES ASSOCIATED WITH

PERMITS, UTILITY EXTENSIONS, TAP-INS, ETC.

3. THE CONTRACTOR SHALL REMOVE ALL DEBRIS AS A RESULT OF THIS PROJECT. THE CONTRACTOR

WILL REMOVE EXISTING EQUIPMENT, FIXTURES, ETC. IN THE SPACE PRIOR TO CONSTRUCTION AND

RELOCATE PER OWNER.

4. THE CONTRACTOR SHALL SCHEDULE HIS WORK AND MATERIAL AND EQUIPMENT DELIVERIES SO

AS NOT TO INTERFERE WITH THE DAILY OPERATIONS OF THE REMAINDER OF THE FACILITY.

5. THE CONTRACTOR SHALL PROTECT EXISTING FACILITIES, EQUIPMENT, FIXTURES, ETC. FROM

DAMAGE DURING THE COURSE OF CONSTRUCTION.

6. ALL SURFACES AND/OR FINISHES DAMAGED AS A RESULT OF AND ADJACENT TO THE WORK

SHALL BE REPAIRED AND FINISHED TO THEIR ORIGINAL CONDITION.

7. EACH SUBCONTRACTOR IS RESPONSIBLE TO COORDINATE AND SCHEDULE HIS WORK WITH THE

GENERAL CONTRACTOR AND ALL OTHER SUBCONTRACTORS WHOSE WORK WILL BE AFFECTED.

8. USE DETAILS MARKED 'TYPICAL' (TYP) WHEREVER APPLICABLE.

9. ALL ITEMS REQUIRED BY THE DRAWINGS AND SPECIFICATIONS SHALL BE PERFORMED IN A

WORKMANLIKE MANNER BY PERSONS SKILLED IN THEIR RESPECTIVE TRADE AND WHO NORMALLY

PARTICIPATE IN THE WORK OF THAT TRADE.

10. WORDS WHICH HAVE WELL KNOWN TECHNICAL OR TRADE MEANINGS ARE USED IN THE

DRAWINGS AND SPECIFICATIONS IN ACCORDANCE WITH SUCH RECOGNIZED MEANINGS.

11. WITHIN THE DRAWINGS AND RELATED SPECIFICATIONS THERE SHALL BE THE FOLLOWING

PRECEDENCE:

A) ADDENDA OR MODIFICATIONS TO THE DRAWINGS AND SPECIFICATIONS TAKE PRECEDENCE OVER

THE ORIGINAL, WHEN ISSUED BY THE ARCHITECT.

B) SPECIFICATIONS SHALL TAKE PRECEDENCE OVER DRAWINGS.

C) WITHIN THE DRAWINGS THE LARGER SCALE TAKES PRECEDENCE OVER THE SMALLER, FIGURED

DIMENSIONS OVER SCALED AND NOTED MATERIALS OVER GRAPHIC INDICATIONS.

12. THE OWNER SHALL BE IN THE FIRST INSTANCE THE SOLE INTERPRETER OF THE DRAWINGS AND

SPECIFICATIONS WITH REGARD TO THEIR MEANING OR INTENT.

13. CONTRACTOR SHALL BE SOLELY RESPONSIBLE FOR ALL CONSTRUCTION MEANS, METHODS,

TECHNIQUES AND PROCEDURES.

14. CONTRACTOR SHALL BE RESPONSIBLE FOR ALL ASPECTS OF SAFETY DURING BUILDING

CONSTRUCTION.

THE GENERAL CONTRACTOR IS TO GUARANTEE ALL WORK

INCLUDING WORK DONE BY SUBCONTRACTORS FOR A PERIOD OF

ONE (1) YEAR COMMENCING WITH THE SUBSTANTIAL COMPLETION

OF THE CONTRACT.

ALL WORK IS TO BE PERFORMED IN ACCORDANCE WITH ALL GOV-

ERNING CODES, ORDINANCES AND AUTHORITIES HAVING

JURISDICTION. GENERAL CONTRACTOR IS RESPONSIBLE FOR

OBTAINING AND PAYING FOR ALL REQUIRED BUILDING PERMITS.

THE GENERAL CONTRACTOR IS TO HAVE A FULL TIME QUALIFIED

SUPERVISOR ON THE SITE AT ALL TIMES WHILE WORK IS BEING

PERFORMED.

ALL MATERIAL SPECIFIED IS TO BE NEW & INSTALLED IN

ACCORDANCE WITH MANUFACTURER'S INSTRUCTIONS AND

SPECIFICATIONS. GENERAL CONTRACTOR IS TO CONSTRUCT

PROJECT IN ACCORDANCE WITH THE DOCUMENTS. ANY DEVIATION

FROM THE INTENT OF THE DOCUMENTS, WITHOUT OWNERS

APPROVAL, ARE AT THE CONTRACTOR'S OWN RISK AND MAY

RESULT IN THE WORK BEING DONE OVER AT CONTRACTOR'S

EXPENSE (MATERIALS AND LABOR).

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IN

4" Ø SPHERE SHALL NOT PASS

THRU OPENING, TYP.

WIRE MESH INFILL PANEL

WIRE MESH INFILL PANEL

SEE STRUCTURAL DRAWINGS

FOR FRAMING DETAILS

M A

X

NEW GRIP STRUT TREADS

WITH NOSING (10 1/2"),

TYP. ALL.

4" Ø SPHERE SHALL

NOT PASS THROUGH

OPENING, TYP.

4" Ø SPHERE SHALL NOT PASS

THRU OPENING, TYP.

1 1/4" Ø STEEL HANDRAIL

6" Ø SPHERE SHALL

NOT PASS THROUGH

OPENING, TYP.

M

AX

4"

4" Ø SPHERE SHALL

NOT PASS THROUGH

OPENING, TYP.

4" Ø SPHERE SHALL NOT PASS

THRU OPENING, TYP.

TYP EXISTING

2' - 0"

1 1/4" Ø STEEL HANDRAIL

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STAIR TREAD

SEE 6/S4.01 FOR DETAILS

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CODE SUMMARY

MS PROJECT #:JEA_200705MSMS

REFERENCED CODES:

2018 IBC (INTERNATIONAL BUILDING CODE)

2018 IEBC (INTERNATIONAL EXISTING BUILDING CODE)

NFPA 101 - LIFE SAFETY CODE (12TH EDITION)

ICC A117.1-2009 ACCESSIBILITY AND USABLE BUILDING AND FACILITIES

IBC 2018

CHAPTER 3:

TOWER OCCUPANCY = 'U' (UTILITY)

- OCCUPANT LOAD BASED ON SQUARE FOOTAGE OF TOWER CAB = (7'-0" X 7'-0" = 49 SF) = 2 OCCUPANTS (MAX)

- ALLOWABLE OCCUPANT LOAD TO BE DETERMINED BY AHJ.

CHAPTER 10:

*FOR THE PURPOSE OF THIS CODE REVIEW, THE EXISTING STAIR WILL BE CONSIDERED A 'SHIPS LADDER' AND SHALL COMPLY TO THOSE REQUIREMENTS

1003.4 - ALL WALKING SURFACES AND CIRCULATION PATHS ARE REQUIRED TO HAVE A SLIP RESISTANT SURFACE AND BE SECURELY ATTACHED.

1001.2 AND 1011.5 - STAIR WIDTH AND RISE/RUN REQUIREMENTS DO NOT APPLY AS THIS IS AN EXISTING STRUCTURE AND TO COMPLY WITH THOSE REQUIREMENTS WOULD BE CONSIDERED

TECHNICALLY AND STRUCTURALLY INFEASIBLE.

1011.6 - A FLOOR LANDING IS REQUIRED AT THE TOP AND BOTTOM OF EACH STAIRWAY. THE DEPTH OF THE LANDING SHALL NOT BE LESS THAN THE WIDTH OF THE STAIR.

1011.13 - 42" HIGH GUARDRAILS ARE REQUIRED AT STAIRS AND LANDINGS LOCATED MORE THAN 30" ABOVE THE FLOOR BELOW AND SHALL NOT HAVE OPENINGS THAT ALLOW THE PASSAGE

OF A 4" DIAMETER SPHERE. SEE 1015.3 EXCL #5 FOR SHIPS LADDERS.

1011.15 - SHIPS LADDERS - HANDRAILS ARE REQUIRED ON BOTH SIDES OF SHIPS LADDERS.

1014.3.1 - HANDRAILS SHALL COMPLY WITH THE GRASPABILITY REQUIREMENTS OF TYPE I HANDRAILS AND HAVE CIRCULAR CROSS SECTION NOT LESS THAN 1 1/4" AND NOT GREATER THAN 2"

IN DIAMETER.

1015.3 - EXC. #5 - SHIPS LADDERS WHERE THE TOP RAIL SERVES AS A HANDRAIL ALSO, SHALL HAVE A HEIGHT OF NOT LESS THAN 30".

IEBC 2018

CHAPTER 4:

401.2 - REPAIR WORK DONE ON EXISTING STRUCTURES SHALL NOT MAKE IT LESS COMPLIANT.

404 - REPAIRS SHALL BE DONE IN A MANNER THAT MAINTAINS THE LEVEL OF PROTECTION PROVIDED FOR THE MEANS OF EGRESS.

CHAPTER 7:

702 - ALL NEW FINISHES MUST COMPLY WITH THE REQUIREMENTS IN CHAPTER 8 OF THE IBC 2018.

702.6 - ALL NEW WORK MUST COMPLY WITH THE MATERIALS AND METHODS REQUIRED BY THE IBC THAT SPECIFY MATERIAL STANDARDS AND DETAIL OF INSTALLATION AND CONNECTIONS.

707 - ALTERATIONS SHALL CONFORM TO THE REQUIREMENTS OF THE INTERNATIONAL CONSERVATION ENERGY CODE AS IT RELATES TO NEW CONSTRUCTION ONLY.

NFPA 101:

4.5 - MULTIPLE SAFEGUARDS THAT ARE APPROPRIATE TO THE STRUCTURE AND THE CAPABILITY OF ITS OCCUPANTS IS A FUNDAMENTAL REQUIREMENT SO THAT LIFE SAFETY DOES NOT

DEPEND SOLELY ON ANY SINGLE SAFEGUARD.

43.3 - REPAIRS SHALL BE MADE WITH LIKE MATERIALS AND SHALL NOT REDUCE THE LEVEL OF CODE COMPLIANCE.

11.3 - TOWERS ARE PERMITTED TO HAVE A SINGLE EXIT PER 11.3.2.4.1

1" = 1'-0"

GUARDRAIL @ LANDING/PLATFORM, TYP.

1" = 1'-0"

HANDRAIL ELEVATION @ STAIRS, TYP.

1" = 1'-0"

HANDRAIL SECTION @ STAIRS, TYP.

GENERAL NOTES:

1. GC TO PROVIDE PORTABLE FIRE EXTINGUISHER IN ACCESSIBLE LOCATION IN TOWER CAB.

MELISSA

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BASE COLOR: WHITE

1" BLACK RAISED TEXT

ACCENT BACKGROUND COLOR: BLACK

BASE AND ACCENT COLORS TO BE SELECTED

FROM MANUFACTURERS STANDARD RANGE.

SPEC ALUMINUM FOR SIGNAGE MATERIAL.

14"

MAXIMUM CAPACITY =

2 OCCUPANTS

CAUTION

1 1/2" SAFETY YELLOW RAISED TEXT

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SITE PLAN

MS PROJECT #:JEA_200705MSMS

1/16" = 1'-0"

SITE PLAN

EXISTING CHAIN LINK FENCE AROUND BASE OF

TOWER - CONTRACTOR TO REMOVE PORTION(S) OF

FENCE AS REQUIRED TO PERFORM SCOPE OF WORK.

CONTRACTOR RESPONSIBLE TO REPLACE FENCING

TO ORIGINAL CONDITION AT THE END OF

CONSTRUCTION.

INSTALL SIGNAGE AT BASE OF TOWER,

AHJ TO LOCATE. SEE DETAIL 2/C1.00

1 1/2" = 1'-0"

SIGNAGE

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A1.00

A1.00

A1.00

N3

VFY

V F

Y V

F Y

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SK-0.1

N1

N6

N9

F.F.

0' - 0"

T.O.PLATE

7' - 6"

N5

N4

N2

A1.00

N7

N8

A

NEW GLAZING TO BE

1/8" THICK SAFETY GLASS

PROVIDE DAP '33'

WINDOW GLAZING

COMPOUND STICKS

BETWEEN ALL PANELS

AND SASH TO

PROVIDE AIRTIGHT

AND WATERTIGHT

SEAL.

A1.00

A

B

D1

D2

D3

D4

D6

F.F.

0' - 0"

T.O.PLATE

7' - 6"

D2

D5

3"

7' - 0"

EXISTING METAL

WINDOW FRAME

DAP '33' WINDOW

GLAZING COMPOUND

INSTALL NEW 1/8" THICK

SAFETY GLAZING PANELS INTO

EXISTING METAL FRAME. ,

GC TO VERIFY ACTUAL

DIMENSIONS OF EXISTING

GLASS PANELS BEING

REPLACED, PRIOR TO

ORDERING

DAP '33' WINDOW

GLAZING COMPOUND

EXISTING METAL

WINDOW FRAME

EXISTING METAL

WINDOW FRAME

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CAB PLANS AND DETAILS

MS PROJECT #:JEA_200705MSMS

3/4" = 1'-0"

CAB FLOOR PLAN

3/4" = 1'-0"

SOUTH ELEVATION

1 1/2" = 1'-0"

TYP. WINDOW DETAIL

(ALL ELEVATIONS SIM.)

3/4" = 1'-0"

DEMOLITION CAB FLOOR PLAN

3/4" = 1'-0"

DEMOLITION SOUTH ELEVATION

DEMOLITION KEYNOTES

D1 REMOVE EXISTING 2X FLOOR DECKING

D2 REMOVE EXISTING GLAZING AND GLAZING COMPOUND. CLEAN AND PREP METAL FRAMES FOR NEW GLAZING INSTALLATION AND NEW PAINT.

D3 REMOVE EXISTING ACCESS DOOR AND HARDWARE

D4 REMOVE EXISTING WOOD FRAMED 'GUARD RAIL' WALL

D5 REMOVE EXISTING ANTENNA AND ACCESSORIES, LEAVING EXTERIOR HOUSING IN PLACE TO KEEP HISTORIC AESTHETIC. INSTALL VENTILATOR AT OPENING.

D6 REMOVE EXISTING RADIO CABINET AND EQUIPMENT.

NEW CONSTRUCTION KEYNOTES

N1 PROVIDE NEW 2X PRESSURE TREATED FLOOR DECKING, REPLACE LUMBER LAYOUT IN KIND

N2 INSTALL NEW GLAZING PER DETAIL 5/A1.00

N3 PROVIDE NEW ACCESS DOOR, VERIFY FINISHED OPENING DIMENSIONS AND ATTACH PER DETAIL 1,2,3/S4.02

N4 REPAINT EXTERIOR WALLS AND WINDOW FRAMES 'RED' COLOR TO MATCH EXISTING. REPAINT GOOSE ON EACH SIDE USING STENCIL CUT OUT. PAINT GOOSE 'WHITE' TO MATCH

EXISTING. GC TO PROVIDE COLOR SAMPLES TO OWNER FOR APPROVAL.

N5 PRIOR TO REPAINTING EXTERIOR, CONTRACTOR TO OBTAIN STENCIL OF BIRD IMAGE TO RECREATE WITH NEW PAINT. SEE 3/A1.00

N6 PROVIDE 42" HIGH WOOD FRAMIED GUARDRAIL ADJACENT TO ACCESS DOOR.

N7 NEW LOUVER CAP FOR EXISTING OPENING.SEE 5/A2.00 FOR EXISTING CAP. MATCH NEW TO ORIGINAL

N8 REPAINT EXTERIOR ROOF AND INTERIOR CEILING "RED" COLOR TO MATCH EXISTING. GC TO PROVIDE COLOR SAMPLES TO THE OWNER FOR APPROVAL.

N9 REPAINT INTERIOR WALLS AND WINDOW FRAMES " RED" COLOR TO MATCH EXISTING. GC TO PORVIDE COLOR SAMPLES TO THE OWNER FOR APPROVAL

1" = 1'-0"

GOOSE STENCIL

6" = 1'-0"

WINDOW DET.

GENERAL DEMO NOTES:

1. BASED ON THE ASB AND LEAD SURVEY REPORT BY NORTHERN INDUSTRIAL HYGIENE INC. DATED 11/19/2020, NO ASBESTOS WAS FOUND, BUT LEAD BASED PAINT IS NOTED TO BE

PRESENT. REFER TO REPORT FOR RECOMMENDATIONS ON REQUIREMENTS TO WORKING WITH SURFACES WHICH HAVE LEAD BASED PAINT

GENERAL PAINTING NOTES:

1. SURFACES RECEIVING NEW PAINT SHALL BE CLEANED THOROUGHLY WITH A WATER BASED CLEANER AND DEGREASER. TEST CLEANED SURFACE WITH A COPPER SULPHATE SOLUTION

TO ENSURE CLEANING IS COMPLETED.

2. ANY DEFECTS SHALL BE CORRECTED PRIOR TO APPLYING NEW PAINT. CONTRACTOR TO PREPARE SURFACES FOR PAINTING PER THE PAINT MANUFACTURER RECOMMENDATIONS .

PRIMERS, PAINTS AND SEALERS TO BE APPLIED PER MANUFACTURER RECOMMENDATIONS FOR ACHIEVING THE BEST RESULT FOR THE SUBSTRATE UNDER THE PROJECT CONDITIONS.

3. HIGH PERFORMANCE EXTERIOR EPOXY PRIMER AND (2) COATS OF EXTERIOR LATEX PAINT SHALL BE APPLIED TO THE SURFACES.

4. SUBMIT PAINT SPECIFICATION INCLUDING CLEANING , INSTALLATION PROCEDURE AND COLOR FOR APPROVAL.

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NEW GRIP STRUT DECKING

EACH PLATFORM

UP

DOWN

T Y

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9 1/2" 4 3/4" 9 1/2"

T Y

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NEW PLATFORM GUARD RAIL EACH

PLATFORM SEE DETAIL 1/T0.10 FOR CODE

CONSIDERATIONS AND STRUCTURAL FOR

DETAILS

SEE STRUCTURAL DRAWINGS FOR FRAMING

NEW GRIP STRUT STAIR

TREADS AND CLOSURE

NEW STAIRS HANDRAIL

AND GUARDRAIL

NEW STAIRS HANDRAIL

AND GUARD RAIL

NEW PLATFORM GUARD RAIL

NEW PLATFORM

GUARD RAIL

NEW VERTICAL TO TERMINATE

STAIR HANDRAIL

TYPICAL LANDING (4) SIMILAR TO THIS

CONFIGURATION (4) DIFFERENT. SEE

STRUCTURAL FOR DETAILS

P A

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U-EDGING BY PANEL

MANUFACTURER

EXISTING TOP RAIL TO REMAIN

@ LOCATIONS THAT ARE 42"

ABOVE DECKING, MIN.

STEEL WIRE MESH

VARIES

TYP. PANEL/PLANK

WIDTH @ LANDINGS

DECK RAILING COLUMNS

L3X3X3/16" @ 6' O.C. MAX

TOP RAIL L3X3X3/16

BOTTOM RAIL L3X3X3/16

A2.00

M A

X

HOT DIPPED GALVANIZED

1/8" PLATE STEEL RISER

ATTACHED TO BACK OF

TREAD, TYP ALL

NEW GRIP STRUT TREADS

WITH NOSING (10 1/2"),

TYP. ALL.

NEW TOP ANGLE TO

SUPPORT/FRAME

WIRE MESH PANEL

6" Ø SPHERE SHALL

NOT PASS THROUGH

OPENING, TYP.

4" Ø SPHERE SHALL NOT PASS

THRU OPENING, TYP.

HANDRAIL SUPPORT

PER STRUCTURAL

1 1/4" Ø STEEL HANDRAIL

STEEL WIRE MESH WITH

PANEL PARALLEL TO SLOPE

INFILL PLANK

NEW HANDRAIL SUPPORTS, L2 1/2X2

1/2X3/16 2 4'-0" O.C. MAX SEE

STRUCTURAL

4" Ø SPHERE SHALL

NOT PASS THROUGH

OPENING, TYP.

M

AX

4"

TYP EXISTING

2' - 0"

1 1/4" Ø STEEL HANDRAIL

/2

M

IN

HOT DIPPED GALVANIZED

PLATE STEEL RISER

ATTACHED TO BACK OF

TREAD, TYP ALL

M A

X

HOT DIPPED GALVANIZED

1/8" PLATE STEEL RISER

ATTACHED TO BACK OF

TREAD, TYP ALL

NEW GRIP STRUT TREADS

WITH NOSING (10 1/2"),

TYP. ALL.

NEW TOP ANGLE TO

SUPPORT/FRAME

WIRE MESH PANEL

6" Ø SPHERE SHALL

NOT PASS THROUGH

OPENING, TYP.

4" Ø SPHERE SHALL NOT PASS THRU OPENING, TYP.

HANDRAIL SUPPORT PER STRUCTURAL

1 1/4" Ø STEEL HANDRAIL

STEEL WIRE MESH WITH

PANEL PARALLEL TO SLOPE

NEW HANDRAIL SUPPORTS, SEE STRUCTURAL

M

AX

4"

4 3/4" PLANK

4" Ø SPHERE SHALL

NOT PASS THROUGH

OPENING, TYP.

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STAIR PLANS AND

DETAILS

MS PROJECT #:JEA_200705MSMS

1" = 1'-0"

TYPICAL LANDING

1" = 1'-0"

TYP. GUARDRAIL

1" = 1'-0"

TYP. STAIR SECTION @ LANDING

1" = 1'-0"

TYP. STAIR CROSS-SECTION

3/4" = 1'-0"

VENT CAP

NOTE:

1. CONTRACTOR TO MATCH TO PROVIDED DRAWINGS

(REFERENCE FROM C.P. FICKS 1935 HANDBOOK, PG 311)

2. ELIMINATE RIVIT CONSTRICTION. SUBSTITUTE SELF

TAPPING #8 METAL SCREW WITH NEOPRENE WASHER.

COLOR MATCH TO ROOFING.

1" = 1'-0"

TYP. STAIR SECTION @ LANDING 2

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1ST LANDING

2ND LANDING

3RD LANDING

4TH LANDING

5TH LANDING

6TH LANDING

7TH LANDING

8TH LANDING

CAB LANDING

9TH LANDING (GRADE)

22' - 0 3/4"

7' - 0"

STAIR #1

STAIR #2

STAIR #3

STAIR #4

STAIR #5

STAIR #6

STAIR #7

STAIR #8

STAIR #9

NOTES:

1) TOWER ELEVATION PROVIDED FOR REFERENCE

2) CONTRACTOR TO FIELD VERIFY EXISTING ELEVATIONS

PRIOR TO FABRICATION AND NOTIFY OWNER OF ANY

DISCREPANCIES

3) THE ELEVATIONS AND CALLOUTS ARE BASED ON THE

ORIGINAL 1935 US FOREST SERVICE FIELD MANUAL FOR

TOWER CONSTRUCTION

1.0

110 MPH

UNIFORM 100 PSF

48.5 PSF

II

2. FLOOR / PLATFORM/STAIR LIVE LOAD

3. ROOF LIVE LOAD -

4. ROOF SNOW LOAD

A. THE GROUND SNOW LOAD, Pg -

B. FLAT-ROOF SNOW LOAD, Pf -

C. SNOW EXPOSURE FACTOR, Ce -

D. SNOW LOAD IMPORTANCE FACTOR, I -

E. THERMAL FACTOR, Ct -

5. WIND LOAD

A. BASIC WIND SPEED (3-SECOND GUST) -

B. WIND IMPORTANCE FACTOR-

C. BUILDING CATEGORY -

D. WIND EXPOSURE -

6. EARTHQUAKE DESIGN DATA

10 PSF1. ROOF DEAD LOAD

C

B. DESIGN LOADS

STRUCTURAL DESIGN

A. GOVERNING CODES AND GENERAL NOTES

INTERNATIONAL EXISTING BUILDING CODE 2018

INTERNATIONAL BUILDING CODE (IBC) 2018

AMERICAN SOCIETY OF CIVIL ENGINEERS (ASCE)- MINIMUM DESIGN LOADS FOR BUILDINGS & OTHER STRUCTURES- ASCE 7-16

AMERICAN CONCRETE INSTITUTE (ACI) - BUILDING CODE & COMMENTARY ACI 318-14

AMERICAN CONCRETE INSTITUTE (ACI) - BUILDING CODE REQUIREMENTS FOR MASONRY STRUCTURES ACI 530-14

AMERICAN INSTITUTE STEEL OF CONSTRUCTION (AISC) - STEEL CONSTRUCTION MANUAL FOURTEENTH EDITION AISC 360-16

AMERICAN FOREST & PAPER ASSOCIATION (AF&PA) - NATIONAL DESIGN SPECIFICATION FOR WOOD CONSTRUCTION NDS 2018

AMERICAN INSTITUTE OF TIMBER CONSTRUCTION (AITC) 9TH EDITION

THE CONTRACTOR IS RESPONSIBLE FOR LOCATING OR HAVING LOCATED THE BUILDING ON THE SITE AND VERIFYING ALL

FOUNDATION DIMENSIONS, AND SETBACK REQUIREMENTS FROM EASEMENTS AND PROPERTY LINES WITH THE ARCHITECT PRIOR

TO CONSTRUCTION.

20 PSF

1.0

1.2

41.0 PSF

NA

CONCENTRATED 300 LBS

A. ALL CEMENT IN CONCRETE TO CONFORM TO ASTM C150 SPECIFICATION FOR PORTLAND CEMENT.

B. ALL AGGREGATE TO CONFORM TO ASTM C33 SPECIFICATION FOR CONCRETE AGGREGATES.

C. CONCRETE SUPPLIER TO MIX BASED ON THEIR TESTING TO ASSURE THIS MINIMUM COMPRESSIVE STRENGTH PER ACI 318

D. THE MAXIMUM NOMINAL AGGREGATE SIZE SHALL BE ONE FIFTH THE NARROWEST DIMENSION BETWEEN THE FORMS OR ONE THIRD THE

DEPTH OF THE SLAB, OR THREE-FOURTHS THE MINIMUM CLEAR SPACING BETWEEN INDIVIDUAL REINFORCING BARS OR WIRES, WHICHEVER

APPLIES. THESE PROVISIONS ARE TO ASSURE CONCRETE PLACEMENT WITHOUT VOIDS OR HONEYCOMBS AND MAY BE WAIVED ONLY BY THE

BUILDING OFFICIAL IF THEY JUDGE THAT LARGER SIZES ARE ADEQUATE BECAUSE OF WORKABILITY AND METHODS OF CONSOLIDATION.

E. CONCRETE CURING (OTHER THAN HIGH-EARLY) SHALL BE MAINTAINED ABOVE A TEMPERATURE OF 50°F AND IN A MOIST CONDITION FOR AT

LEAST THE FIRST SEVEN DAYS AFTER PLACEMENT. HIGH EARLY CONCRETE SHALL BE CURED ABOVE 50°F AND IN A MOIST CONDITION FOR AT

LEAST THE FIRST THREE DAYS.

F. ADEQUATE EQUIPMENT SHALL BE PROVIDED FOR HEATING CONCRETE MATERIALS AND PROTECTING CONCRETE DURING FREEZING OR NEAR-

FREEZING WEATHER. ALL CONCRETE MATERIALS, REINFORCEMENT, FORMS, FILLERS, AND GROUND WHICH THE CONCRETE IS TO BE IN

CONTACT WITH IS TO BE FREE OF FROST. FROZEN MATERIALS OR MATERIALS CONTAINING ICE SHALL NOT BE USED.

G. DURING HOT WEATHER, PROPER ATTENTION SHALL BE GIVEN TO INGREDIENTS, PRODUCTION METHODS, HANDLING, PLACING, PROTECTION, AND CURING TO PREVENT EXCESSIVE CONCRETE TEMPERATURES AND EVAPORATION THAT MAY IMPAIR REQUIRED STRENGTH OR

SERVICEABILITY OF THE MATERIAL.

H. ALL WALLS & FOUNDATIONS SHALL BE MECHANICALLY CONSOLIDATED. VIBRATORS SHALL BE INSERTED IN PREVIOUS POURED FRESH

CONCRETE TO PREVENT COLD JOINTS WHEN MULTIPLE LAYER OF CONCRETE ARE PLACED IN A WALL.

I. CONDUITS, PIPES, AND SLEEVES SHALL BE ALLOWED ONLY WHERE NOTED ON THE PLANS. ANY ADDITIONAL ALTERATIONS ARE NOT

PERMITTED WITHOUT OWNER APPROVAL THAT IT WILL NOT COMPROMISE STRUCTURAL INTEGRITY.

J. THE SURFACE OF ALL CONSTRUCTION JOINTS SHALL BE CLEANED AND LAITANCE REMOVED. IMMEDIATELY BEFORE NEW CONCRETE IS

PLACED, JOINTS SHALL BE WETTED AND STANDING WATER REMOVED. PROVISIONS SHALL BE MADE TO TRANSFER SHEAR FORCES THROUGH

THE CONSTRUCTION JOINT.

K. NA

L. CONCRETE IN SIDEWALKS OR EXTERIOR SLABS THAT WILL BE EXPOSED TO FREEZING/THAWING OR DEICING CHEMICALS SHALL HAVE A

MINIMUM 0.45 WATER/CEMENTITIOUS RATIO BY WEIGHT FOR NORMAL WEIGHT AGGREGATE CONCRETE AND BE 4000 PSI MINIMUM.

M. ALL REINFORCING BARS SPECIFIED SHALL BE DEFORMED BARS AT LEAST GRADE 60.

N. ALL BENDING OF REINFORCING MATERIAL SHALL BE DONE COLD AND MINIMUM BEND DIAMETER SHALL BE 6 TIMES THE NOMINAL BAR

DIAMETER FOR #3-#8 BAR AND 8 TIMES THE NOMINAL BAR DIAMETER FOR #9-#11 BARS. REINFORCEMENT PARTIALLY IMBEDDED IN

CONCRETE MAY BE FIELD BENT.

O. REINFORCEMENT, ANCHORS AND EMBEDDED ITEMS SHALL BE ACCURATELY PLACED AND SUPPORTED BEFORE CONCRETE IS PLACED AND

SHALL BE SECURED AGAINST DISPLACEMENT WITHIN TOLERANCES OF SECTION 1907.5 OF THE CURRENT VERSION OF CURRENT IBC.

P. N/A

Q. STANDARD HOOK ON REINFORCING BAR SHALL BE:

1. 180° BEND PLUS 4d EXTENSION, BUT NOT LESS THAN 2 1/2" AT FREE END OF BAR.

2. 90° BEND PLUS 12d EXTENSION AT FREE END OF BAR.

R. MINIMUM REBAR LAPS - FOR #3-15", #4-20", #5-24 & #6-30" WITH A CLEAR SPACING OF NOT LESS THAN 2d AND CLEAR COVER OF NOT LESS

THAN d. ALL OTHER SPLICES CONDITIONS SHALL BE BY THE EOR AND ILLUSTRATED ON FOUNDATION PLAN & DETAIL SHEETS.

S. REFER TO TABLE BELOW FOR MINIMUM COVER AND TOTAL AIR CONTENT FOR CONCRETE IN DIFFERENT SERVICE CONDITIONS.

T. BONDING AGENT: EUCLID CHEMICAL COMPANY DURAL 452 LV OR APPROVED EQUAL MEETING ASTM C881 TYPE 1I, II. IV & V GRADE 2 CLASS C

INSTALLED PER MANUFACTURERS RECOMMENDATIONS

SUCH AS A CONCRETE SLAB EXPOSED TO THE WEATHER:

No. 8 BAR AND SMALLER 1

CAST-IN-PLACE CONCRETE (NON-PRESTRESSED)

CONCRETE EXPOSED TO EARTH OR WEATHER:

No. 5 BAR, W31 OR D31 WIRE AND SMALLER

CONCRETE CAST AGAINST & PERMANENTLY EXPOSED TO EARTH 3

1-1/2

MINIMUM COVER (IN)DESCRIPTION

CONCRETE PROTECTION FOR REINFORCEMENT

EXTERIOR SLAB & PIER 4000 PSI

28 DAY COMPRESSIVE STRENGTH

5/3

SLUMP (IN) MAX/MIN

.45

MAX W/C RATIO

6 +/- 1.5%

AIR CONTENT (%)CONCRETE MIX

A. DETAIL, FABRICATE AND ERECT STRUCTURAL STEEL IN ACCORDANCE WITH THE AISC SPECIFICATIONS AND CODES, LATEST

EDITION

B. PROVIDE MATERIAL CONFORMING TO THE FOLLOWING REQUIREMENTS FOR ALL STRUCTURAL STEEL:

1. SHAPES (ANGLES, CHANNELS ETC.) AND PLATES (EXCEPT WIDE FLANGE) AND PLATES: ASTM A36, Fy=36KSI

2. WIDE FLANGE SHAPES: ASTM A992, Fy=50 KSI MIN. (65 KSI MAX.)

3. STRUCTURAL TUBING: ASTM A500, GRADE B, Fy=46 KSI

4. ANCHOR BOLTS: ASTM F1554 GR 36 - UNLESS NOTED OTHERWISE

5. THREADED ROD: ASTM A36

6. WELDING ELECTRODE: E7OXX

C. FABRICATOR SHOP DRAWINGS SHALL BE SUBMITTED TO THE OWNER FOR APPROVAL PRIOR TO FABRICATION.

D. MEMBERS SHALL BE FABRICATED PER AISC WITH 'STANDARD' HOLES 1/16" LARGER THAN BOLT DIAMETER UNLESS

SPECIFICALLY DETAILED OR APPROVED OTHERWISE. HOLES FOR ANCHOR BOLTS MAY BE 5/16" MAX. LARGER THEN BOLT

UNLESS NOTED OTHERWISE. (PROVIDE WASHERS AT ALL ANCHOR BOLTS.)

E. USE NON-SHRINK GROUT/DRYPACK BELOW STEEL BASE PLATES AND BEARING PLATES.

F. SHOP WELDING SHALL BE DONE IN A CERTIFIED FABRICATOR'S SHOP APPROVED BY THE BUILDING OFFICIAL (IBC 1704.2) OR

SHALL BE PERFORMED UNDER SPECIAL INSPECTION WITH SUCH INSPECTION AT THE FABRICATOR'S EXPENSE. SUBMIT

EVIDENCE OF CERTIFICATION PRIOR TO COMMENCING FABRICATION.

G. STEEL TO STEEL CONNECTIONS - A325 BOLTS SHALL BE INSTALLED 'SNUG-TIGHT' PER RCSC 'SPECIFICATION FOR STRUCTURAL

JOINTS USING ASTM A325 OR A490 BOLTS' AND COMMENTARY WITH PERIODIC INSPECTION PER SECTION 1704.3.3. STEEL

TO WOOD CONNECTIONS - ASTM A307 BOLTS TO BE USED.

H. MAXIMUM FILLET WELDS SIZE SHALL BE 1/16" LESS THAN MATERIAL THICKNESS IF THICKNESS IS 1/4" OR LARGER, 3/16" SHALL

BE USED ON MATERIAL 3/16" THICK.

I. FABRICATOR TO HAND CLEAN THE STEEL OF LOOSE RUST, LOOSE MILL SCALE, DIRT, AND OTHER FOREIGN MATTER PRIOR TO

GALVANIZING BY MEANS OF WIRE BRUSHING, OR OTHER MEANS TO MEET REQUIREMENTS OF SSDC-SP2.

J. ALL STEEL SHALL BE HOT DIPPED GALVANIZED TO ASTM A123 PRIOR TO SHIPMENT TO SITE. CONNECTIONS SHALL BE FIELD

GALVANIZED AFTER WELDING AND/OR BOLTING.

K. CONTRACTORS RESPONSIBILITY TO PROVIDE TOUCH-UP OF ABRASIONS CAUSED BY FIELD HANDLING.

L. PAINT IS NOT REQUIRED ON EMBEDDED STEEL.

M. NO CUTTING, DRILLING, OR OTHER ALTERATION OF STEEL FRAMEWORK IS PERMITTED EITHER TO ACCOMMODATE OTHER

TRADES OR TO REPAIR MISALIGNMENTS. CONTACT OWNER FOR ANY FIELD REVISIONS OR REPAIRS.

N. ALL NEW HOLES IN EXISTING STEEL SHALL BE DRILLED. NO FLAME CUTTING IS PERMITTED.

O. STEEL WIRE MESH TO BE MCNICHOLS OR APPROVED EQUAL GALVANIZED 14 GA STEEL WIRE MESH WITH 2"X1" RECTANGULAR

OPENING PARALLEL TO THE RAILS. MESH TO HAVE U-TRIMED EDGE SIZED FOR THE REQUIRED MESH. MESH TO BE ATTACHED

TO THE FRAMING

A. WALKWAYS, PLANKS, STAIR TREADS SHALL HAVE RETICULATED AND FORMED METAL CROSS STRUTS.

B. REGULAR AND HEAVY DUTY SAFETY GRATING PRODUCTS SHALL BE CONSTRUCTED FROM SINGLE -SHEET WITH INTEGRALLY

FORMED CHANNELS AT THE EDGES.

C. SLIP RESISTANCE WALKWAYS , PLANS AND STAIR TREADS SHALL HAVE STAMPED SURFACES TEXTURES

D. SUBMIT SHOP DRAWINGS FOR THE SAFETY GRATING PRODUCTS, ACCESSORIES AND ATTACHMENTS. INCLUDING

MANUFACTURERS PRODUCT DATA AND SHOP FABRICATION AND INSTALLATION DETAILS.

E. QUALITY ASSURANCE

a. MANUFACTURERS: FIRMS REGULARLY ENGAGED IN THE MANUFACTURER OF SAFETY GRATING OF THE TYPES

REQUIRE WHOSE PERFORMANCE HAVE BEEN IN SATISFACTORY USE IN SIMILAR SERVICE FOR NOT LESS THAN 5

YEARS

b. OSHA COMPLIANCE: All GRATING INSTALLATION MUST COMPLY WITH OSHA STANDARDS FOR WALKING SURFACES

c. FEDERAL SPECIFICATION RR-G-1602D (OR CURRENT VERSION) DEFINES THE CRITERIA FOR ITEMS CONSIDER 'SAFETY

GRATING' . SLIP RESISTANCE PERFORMANCE DATA MUST BE AVAILABLE TO SUPPORT COMPLIANCE .

d. MANUFACTURES MUST HAVE ISO REQUIRED QUALITY SYSTEM IN PLACE.

F. DELIVERY AND HANDLING

a. DELIVER SAFETY GRATING AND COMPONENTS CAREFULLY TO AVOID DAMAGE, DENTING AND SCORING OF

FINISHES. DO NOT INSTALL DAMAGED MATERIAL

b. STORE IN ORIGINAL PACKAGING AND IN CLEAN, DRY SPACE, PROTECT FROM WEATHER AND

CONSTRUCTION TRAFFIC, MATERIAL TO BE ELEVATION OFF GRADS BY BLOCKS OR SKIDS OR PALLETS .

G. PROVIDE MATERIAL CONFORMING TO THE FOLLOWING

SAFETY GRATING AS MANUFACTURER BY COOPER B-LINE GRIP STRUT SAFETY GRATING OR APPROVED EQUAL.

MILL GALVANIZED STEEL: COMMERCIAL STEEL PER ASTM A653 AND ASTM A924 WITH G-90 COATING DESIGNATION

MINIMUM

HOT-DIP GALVANIZED AFTER FABRICATION: COMMERCIAL STEEL PER ASTM A 1011, MINIMUM YIELD OF 33 KSI HOT DIPPED

GALVANIZED AFTER FABRICATION PER ASTM A 123

STAIR TREADS TO BE 10 1/2 WIDE WITH ABRASIVE NOSING 1 1/2" TALL 14 GA

PLATFORM GRIP STRUT TO BE 1 1/2 TALL 14 GA. WITH A MAXIMUM SPAN OF 4'. PLANK WIDTH TO BE DETERMINED BY

PLATFORM LAYOUT MAX 11 3/4

H. INSTALLATION

a. INSPECT AREA TO RECEIVE GRATING FOR OBSTACLES. NOTIFY OWNER OF CONDITIONS THAT WOULD ADVERSELY AFFECT

THE INSTALLATION OF SUBSEQUENT UTILIZATION OF THE AREAS. DO NOT PROCEED WITH INSTALLATION UNTIL

UNSATISFACTORY CONDITIONS ARE CORRECTED.

b. INSTALL GRATING ACCORDING TO MANUFACTURER'S RECOMMENDATIONS AND AS SHOWN ON THE CONSTRUCTION

DRAWINGS.

c. POSITION GRATING FLAT AND SQUARE WITH ENDS BEARING MINIMUM 1 1/2 ON SUPPORTING STRUCTURE.

d. KEEP AT LEAST 1/4" AWAY FROM VERTICAL STEEL SECTIONS

e. ALLOW CLEARANCE AT JOINT BETWEEN SECTIONS OF MAXIMUM 1/2" AT SIDE CHANNELS AND MAXIMUM 3/8" AT ENDS.

f. BAND RANDOM CUT ENDS AND DIAGONAL OR CIRCULAR CUT EXPOSED EDGES WITH MINIMUM 1/8" THICK BAR WELDED AT

CONTACT POINTS

g. JOIN ABUTTING WALKWAY SECTIONS WITH MANUFACTURERS SUPPLIED SPLICE PLATES, BOLTED OR WELDED AS SPECIFIED.

SAFETY GRATING NOTES

TESTING

1. FRESH CONCRETE SHALL BE TESTED PER THE REQUIREMENTS OF THE ACI FOR AIR, TEMPERATURE, SLUMP

AND CYLINDER TAKEN FOR 28 DAY COMPRESSIVE STRENGTH TEST.

2. STEEL. QUALITY CONTROL/ QUALITY ASSURANCE OF FIELD BOLTING SHALL BE COMPLETED PER THE

REQUIREMENTS OF AISC 360.

A. WOOD FLOOR DECKING IN THE CAB TO BE 2X PRESSURE TREATED LUMBER

B. INSTALL FLAT WITH A MAXIMUM GAP BETWEEN ADJOINING DECK DECKING MEMBER OF 1/4". PROVIDE 1/4" TO 1/2"

GAP AT PERIMETER NEXT TO METAL CAB FRAMING

C. BOLT DECKING TO EXISTING FRAMING WITH CARRIAGE BOLTS. USE WASHER WITH EITHER LOCK WASHER & SINGLE NUT

OR DOUBLE NUT.

SHEET

OF 12

DRAWING NO.DATE

SUB-SHEET

DRAWNDESIGNED CHECKED

/D

O W

L /D

R A

W

IN

G S

/R E

V

IT

S1.00

1/21/2021

MEDICINE LAKE OBSERVATION TOWER

100%

TOWER ELEVATION AND

NOTES

HH PROJECT #:JEA_200705KBHHH

1/8" = 1'-0"

TOWER REFERENCE ELEVATION

STRUCTURAL DESIGN INFORMATION

CONCRETE NOTES

STRUCTURAL STEEL NOTES

GRIP STRUT DECKING & STAIR TREADS

1" = 1'-0"

TESTING/ INSPECTIONS/ OBSERVATIONS

1" = 1'-0"

CAB WOOD DECKING

O P R

L

O N A

IF SSE

R E

E N

G I

N E

TANAM

NO

No.16018PE

KARL B.

HENSHAW

L I C E

S N

5' - 0"

2' - 0"

2' - 0"

1' - 4"

1' - 4"

/4

22' - 0 3/4"

1' - 4" 1' - 4"

NEW LANDING, SEE DETAIL 2/S2.00 FOR SLAB PREP

S2.00

FR

O

M S

TAIR

N

O

SI

N G T

O F

ACE O

F

CO

N

CRETE

44" M

IN

EXISTING GROUNDING WIRE

EXISTING DRAWING INDICATES A GROUNDING WIRE

LOCATED @ 3'-0" BELOW FINISHED GRADE

CONNECTED TO EACH OF THE LEGS

FIELD VERIFY

PIER 1 PIER 2

PIER 4

PIER 3

REMOVE EXISTING LANDING

SLOPE FOR DRAINAGE

SL

O

PE

2% M

AX

NOTES:

1. GRASS AND VEGETATION SHALL BE CLEANED FROM AROUND ALL PIERS AND LANDING.

2. PIER 1 AND 2 WERE PREVIOUSLY REPAIRED AND NO WORK IS PLANNED AT THESE PIERS.

3. PIER 3 AND 4 TO BE REPAIRED.

4. THE SPALLING ON PIER 4 SHALL BE REMOVED TO SOUND CONCRETE. GROUT SHALL BE REMOVED FROM PIER 4.

5. ANY SPALLING ON PIER 3 SHALL BE REMOVED TO SOUND CONCRETE. GROUT SHALL BE REMOVED FROM PIER 3.

6. EXISTING PIERS HAVE A GROUNDING WIRE AND ANY DAMAGE TO THE WIRE SHALL BE REPAIRED.

7. NEW LANDING TO BE LARGER THAN EXISTING TO PROVIDE A MINIMUM 44" FROM THE NOSING OF THE LAST

TREAD TO THE EDGE OF THE CONCRETE LANDING

S2.00

6' -

REMOVE EXISTING GROUT

REMOVE ALL SPALLING TO

SOUND CONCRETE

EXISTING

REPAIRED

#4 DOWEL. DRILL AND

EPOXY W 4" EMBEDMENT

(3) EACH SIDE

CLEAN EXISTING SURFACE TO MEET BONDING AGENT REQUIREMENTS

INSTALL NEW 4" WIDE CONCRETE AROUND EXISTING PIER

APPLY BONDING AGENT PRIOR TO POUR

NEW GROUT TO EXTEND ON FULL SURFACE OF ENLARGED PIER

EXISTING ANCHOR BOLT

VARIES

#3 TIES @ 12" O.C.

1' - 4"

2' - 0"

EXISTING 16X16 PIER

#3 TIES 1 1/2" CLR

DOWEL (4) LOCATIONS

@ 12" O.C. VERT

(8) #4 VERTS

NOTES:

1. CONCRETE PATCH SHOULD EXTEND MIN 24" BELOW ANY

SPALLING. IF SPALLING EXTENDS MORE THAN 12" BELOW GRADE

NOTIFY OWNER.

2. GROUT TO BE NON-SHRINK, NON-METALLIC, STRUCTURAL GROUT

WITH A MINIMUM 9,000 PSI COMPRESSIVE STRENGTH. SAKRETE

NON-SHRINK CONSTRUCTION GROUT OR APPROVED EQUAL.

3. BONDING AGENT PER CONCRETE NOTES

~1 1/2", MATCH EXISTING

EXISTING PIER

B A

S E

D O

N E

X

IS

T

IN

G D

R A

W

IN

G S

M

IN

EXISTING COLUMN

ABOVE PLATE

GRADE

GRADE

6" HOOK

NOTIFY OWNER ONCE SPALLED

CONCRETE IS REMOVED TO EXAMINE THE

SUBSTRATE PRIOR TO PATCHING

BASE PLATE SHALL BE SUPPORTED DURING REPAIR WITH

EXISTING OR NEW SHIMS OR EXISTING LEVELING NUTS

#4 @ 18" O.C. LOCATE REBAR IN

CENTER OF SLAB

S

LA

B

COMPACTED STRUCTURAL

FILL TO UNDISTURBED NATIVE

(-) 3/4" LEVELING COURSE, 4" THICK, MIN

GRADE

ATTACH STINGER TO CONCRETE, MATCH EXISTING

REMOVE ALL ORGANICS, TOPSOIL AND OTHER

DELETERIOUS MATERIAL BELOW NEW SLAB

EXISTING STRINGER

5/8" SIMPSON TITEN HD BOLT W/ 3"

EMBED. (VERIFY SIZE W/ HOLE SIZE)

SHEET

OF 12

DRAWING NO.DATE

SUB-SHEET

DRAWNDESIGNED CHECKED

/D

O W

L /D

R A

W

IN

G S

/R E

V

IT

S2.00

1/21/2021

MEDICINE LAKE OBSERVATION TOWER

100%

9TH LANDING AND

FOUNDATION

HH PROJECT #:JEA_200705KBHHH

1/2" = 1'-0"

9TH LANDING

1" = 1'-0"

PIER REPAIR

1" = 1'-0"

SLAB PREP

EXISTING LANDING SLAB

PIER 3

PIER 4

O P R

L

O N A

IF SSE

R E

E N

G I

N E

TANAM

NO

No.16018PE

KARL B.

HENSHAW

L I C E

S N

5' - 2"

UP

DOWN

WOOD NAILER

(TO BE REMOVED)

L-2 1/2" X 2 1/2" X 3/16"

WOOD NAILER

(TO BE REMOVED)

L-

X

X

/8

ST

R

IN

G

E R

L-6" X 4" X 9/16"

CARRIAGE BOLT TO CONNECT 2X

WOOD TO ANGLE IRON, TYP

L- 3"X 3"X 1/4"

2X WOOD PLANK (TO BE REMOVED)

2X WOOD PLANK (TO BE REMOVED)

2X WOOD PLANK (TO BE REMOVED)

WOOD TREADS (TO BE REMOVED)

EXISTING GUARDRAIL ASSEMBLY

TO BE REMOVED, TYP

WOOD TREADS (TO BE REMOVED)

L- 3" X

" X

/4

L-

X

X

/8

ST

R

IN

G

E R

L-

/2

X

/2

X

/1

L-

/2

X

/2

X

/1

L-

/2

X

/2

X

/1

UP

DOWN

L-

/2

X

/2

X

/1

(E

L-

X

X

/8

ST

R

IN

G

E R

(E

L-

X

X

/8

ST

R

IN

G

E R

L-6" X 4" X 9/16"

(E) L- 3" X 3" X 1/4"

NEW METAL TREAD

NEW METAL DECKING

(E

L- 3" X

" X

/4

L-2 1/2" X 2 1/2" X 3/16"

NEW METAL TREAD

NEW METAL TREAD

NEW METAL TREAD

(N) 9 1/2" WIDE PLANK

(N) 11 3/4" WIDE PLANK

SEE 1/S4.00 FOR STAIRS

(1) 4 3/4" WIDE PLANK INFILL

L-

/2

X

/2

X

/1

L-

/2

X

/2

X

/1

SEE 2/T0.10 FOR

HANDRAIL, TYP

DRILL AND ATTACH EXISTING

ANGLES

(N) L-3" X 3"X 3/16" RAILING POST

(N) L-3" X 3"X 3/16" RAILING POST

(N) RAILING)

(N) ANGLE FOR STAIR/PLATFORM

(N) ANGLES FOR STAIR AND

PLATFORM GUARDRAIL

(N) STAIR HANDRAILS

(N) STAIR HANDRAIL

(N

L-

/2

"X

/2

X

/1

(N

L-

/2

"X

/2

X

/1

(N) L-1 1/2"X 1 1/2" X 3/16

S4.01

2X WOOD PLANK (TO BE REMOVED)

2X WOOD PLANK (TO BE REMOVED)

2X WOOD PLANK (TO BE REMOVED)

2X WOOD PLANK (TO BE REMOVED)

2X WOOD PLANK (TO BE REMOVED)

WOOD NAILER

(TO BE REMOVED)

UP

DOWN

L-

X

X

/8

ST

R

IN

G

E R

WOOD TREADS (TO BE REMOVED)

EXISTING GUARDRAIL ASSEMBLY

TO BE REMOVED, TYP

WOOD TREADS (TO BE REMOVED)

WOOD NAILER

(TO BE REMOVED)

L-5" X 3 1/2" X 1/2"

L-5" X 3 1/2" X 7/16"L- 5" X

/2 " X

/1

6"

L-

X

X

/8

ST

R

IN

G

E R

L-

X

X

/8

ST

R

IN

G

E R

UP

DOWN

L-

X

X

/8

ST

R

IN

G

E R

NEW METAL TREADS

NEW METAL TREADS

L-5" X 3 1/2" X 1/2"

L-

X

X

/8

ST

R

IN

G

E R

L-

/2

X

/2

X

/1

L- 3" X 3" X 1/4"

L- 3" X

" X

/4

L-2 1/2" X 2 1/2" X 3/16"

(N) 4 3/4" WIDE PLANKS

(N) 11 3/4" WIDE DECK PLANKS

(1) 4 3/4" WIDE PLANK INFILL

SEE 1/S4.00 FOR STAIRS

SEE 2/S4.00 FOR STAIRS

(N) ANGLE CLIPS

(N) RAILING)

EXTEND GRATING TO EDGE OF EXISTING GUSSETS

4" MAX. ATTACH TO EXISTING SPLICE PLATE.

REPLACE BOLTS IF REQUIRED

(N) L-1 1/2"X 1 1/2" X 3/16

(N ) L

-1

/2 "X

/2 " X

/1

(N) STAIR HANDRAIL(N) STAIR HANDRAIL

CONNECTION PLATE SEE DETAIL 10/11/12/S4.01

S4.01

S4.01

L-5" X 3 1/2" X 7/16"

UP

DOWN

L-

X

X

/8

ST

R

IN

G

E R

L-

X

X

/8

ST

R

IN

G

E R

WOOD TREADS (TO BE REMOVED)

EXISTING GUARDRAIL ASSEMBLY

TO BE REMOVED, TYP

WOOD TREADS (TO BE REMOVED)

L-5" X 3 1/2" X 1/2"

2X WOOD PLANK (TO BE REMOVED)

2X WOOD PLANK (TO BE REMOVED)

2X WOOD PLANK (TO BE REMOVED)

2X WOOD PLANK (TO BE REMOVED)

WOOD NAILER

(TO BE REMOVED)

WOOD NAILER

(TO BE REMOVED)

L-2 1/2" X 2 1/2" X 1/2"

MEMBER NOT ATTACHED

L- 5" X

/2 " X

/1

6"

L-5" X 3 1/2" X 7/16"

UP

DOWN

L-

X

X

/8

ST

R

IN

G

E R

NEW METAL TREAD

NEW METAL TREAD

L-5" X 3 1/2" X 1/2"

L-2 1/2" X 2 1/2" X 1/2" , ATTACH WITH A325 BOLT

L- 5" X

/2 " X

/1

6"

L-

X

X

/8

ST

R

IN

G

E R

(2) 4 3/4" WIDE PLANKS

(N) 11 3/4" WIDE DECK PLANKS

SEE 2/S4.00 FOR STAIRS SEE 3/S4.00 FOR STAIRS

(2) (N) ANGLE

(2) (N) ANGLE CLIP

(N) RAILING)

(N) ANGLES

(N) ANGLES

S4.01

8 TYP

S4.01

10 TYP

(N) L-1 1/2"X 1 1/2" X 3/16

(N ) L

-1

/2 "X

/2 " X

/1

(N)STAIR HANDRAIL (N) STAIR HANDRAIL

SHEET

OF 12

DRAWING NO.DATE

SUB-SHEET

DRAWNDESIGNED CHECKED

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W

IN

G S

/R E

V

IT

S3.00

1/21/2021

MEDICINE LAKE OBSERVATION TOWER

100%

LANDINGS

HH PROJECT #:JEA_200705KBHHH

1" = 1'-0"

6TH, 7TH, 8TH LANDING -DEMO PLAN

1" = 1'-0"

6TH, 7TH, 8TH LANDING-NEW GRATING AND HANDRAIL

1" = 1'-0"

5TH LANDING - DEMO PLAN

1" = 1'-0"

5TH LANDING - NEW GRATING AND HANDRAIL

1" = 1'-0"

4TH LANDING - DEMO PLAN

1" = 1'-0"

4TH LANDING - NEW GRATING AND HANDRAIL

TYPICAL EXISTING LANDING NOTES:

1. REMOVE EXISTING DECKING AND MESH GUARD RAIL.

2. FIELD VERIFY EXISTING PLAN DIMENSIONS.

3. ANGLES AND FRAMING IN THIS DETAIL ARE EXISTING.

TYPICAL NEW LANDING NOTES:

1. MAX OPENING SIZE 4". INSTALL 4 3/4" PLANKS TO CORNER.

2. ADD L-1 1/2"X 1 1/2"X3/16 TO BEARING TO PLANE OUT

WITH INTERIOR SUPPORT

3. DECKING TO BE GRID STRUT SAFETY GRATING.

4. ALL FRAMING IS EXISTING UNLESS NOTED WITH (N)

TYPICAL EXISTING LANDING NOTES:

1. REMOVE EXISTING DECKING AND MESH GUARD RAIL.

2. FIELD VERIFY EXISTING PLAN DIMENSIONS.

3. ANGLES AND FRAMING IN THIS DETAIL ARE EXISTING.

TYPICAL EXISTING LANDING NOTES:

1. REMOVE EXISTING DECKING AND MESH GUARD RAIL.

2. FIELD VERIFY EXISTING PLAN DIMENSIONS.

3. ANGLES AND FRAMING IN THIS DETAIL ARE EXISTING.

O P R

L

O N A

IF SSE

R E

E N

G I

N E

TANAM

NO

No.16018PE

KARL B.

HENSHAW

L I C E

S N

2X WOOD PLANK (TO BE REMOVED)

2X WOOD PLANK (TO BE REMOVED)

2X WOOD PLANK (TO BE REMOVED)

UP

DOWN

L-

X

X

/8

ST

R

IN

G

E R

L-

X

X

/8

ST

R

IN

G

E R

WOOD TREADS (TO BE REMOVED)

EXISTING GUARDRAIL ASSEMBLY

TO BE REMOVED, TYP

WOOD TREADS (TO BE REMOVED)

L-

X

X

/8

L-2 1/2" X 2 1/2" X 1/4"

L- 2 1

/2 " X

/2 " X

/4

L-4" X 4" X 1/4"

UP

DOWN

L-

X

X

/8

ST

R

IN

G

E R

L-

X

X

/8

ST

R

IN

G

E R

L-

X

X

/8

L- 2 1

/2 " X

/2 " X

/4

L-4" X 4" X 1/4"

L-2 1/2" X 2 1/2" X 1/4"

(3) 11 3/4" WIDE DECK PLANKS

NEW METAL TREADS

SEE 3/S4.00 FOR STAIRS SEE 4/S4.00 FOR STAIRS

NEW METAL TREADS

(2) (N) ANGLE CLIPS (2) (N) ANGLE CLIPS

(N) GUARD RAIL

(N) STAIR HANDRAIL

(N) L-1 1/2"X 1 1/2" X 3/16

(N ) L

-1

/2 "X

/2 " X

/1

(N) STAIR HANDRAIL

(N) GUARDRAIL

GAP LESS THAN 4",

VERIFY ON SITE GAP LESS THAN 4",

VERIFY ON SITE

(N) ANGLE POST

(N) ANGLE POST

L-2 1/2" X 2 1/2" X 1/4"

L- 2 1

/2 " X

/2 " X

/4

2X WOOD PLANK (TO BE REMOVED)

2X WOOD PLANK (TO BE REMOVED)

2X WOOD PLANK (TO BE REMOVED)

UP

DOWN

L-

X

X

/8

ST

R

IN

G

E R

L-

X

X

/8

ST

R

IN

G

E R

WOOD TREADS (TO BE REMOVED)

EXISTING GUARDRAIL ASSEMBLY

TO BE REMOVED, TYP

WOOD TREADS (TO BE REMOVED)

L-

X

X

/8

L-2 1/2" X 2 1/2" X 1/4" L- 2 1

/2 " X

/2 " X

/4

UP

DOWN

L-

X

X

/8

ST

R

IN

G

E R

L-

X

X

/8

ST

R

IN

G

E R

L-

X

X

/8

(N) 11 3/4" WIDE DECK PLANKS

NEW METAL TREADS

SEE 4/S4.00 FOR STAIRS SEE 1/S4.01 FOR STAIRS

NEW METAL TREADS

(2) (N) ANGLE CLIPS (2) (N) ANGLE CLIPS

(N) RAILING

(N) ANGLE POST

GAP LESS THAN 4",

VERIFY ON SITE

GAP LESS THAN 4",

VERIFY ON SITE

(N) STAIR HANDRAIL

(N) ANGLE POST

(N) L-1 1/2"X 1 1/2" X 3/16

(N ) L

-1

/2 "X

/2 " X

/1

(N) STAIR HANDRAIL

L-

/2

X

/2

X

/4

L-2 1/2" X 2 1/2" X 1/4"

2X WOOD PLANK (TO BE REMOVED)

UP

L-

X

X

/8

ST

R

IN

G

E R

WOOD TREADS (TO BE REMOVED)

EXISTING GUARDRAIL ASSEMBLY

TO BE REMOVED, TYP

DO

W

NL-

2" X

" X

/8

" S

TRIN

GER

W O

O

D TREADS (TO

BE REM

O

VED)

L-3 1/2" x 3 1/2" x 1/4"

L-2 1/2" X 2 1/2" X 1/4"

2X WOOD PLANK (TO BE REMOVED)

L-

/2

X

/2

X

/4

L-

/2

X

/2

X

/4

L-2 1/2" X 2 1/2" X 1/4"

UP

L-

X

X

/8

ST

R

IN

G

E R

NEW METAL TREADS

DO

W

NL-

2" X

" X

/8

" S

TRIN

GER

NEW

M

ETAL TREADS

L-3 1/2" x 3 1/2" x 1/4"

L-2 1/2" X 2 1/2" X 1/4"

(N) METAL GRATING

L-

/2

X

/2

X

/4

(N)L-1 1/2" X 1 1/2" X 3/16"

(N )L

-1

/2

X

/2

X

/1

5' - 5 3/8"

/4

SEE 1/S4.01 FOR STAIRS

SEE 2/S4.01 FOR STAIRS

(N) ANGLE POST

(N) ANGLES

(N) RAILING

GUARDRAIL

OUTSIDE OF

PLATFORM

ADD (N) ANGLE TO

MAINTAIN CODE SPACING

(N) ANGLE CLIP

(N) ANGLE COLUMN

(N) STAIR ANGLE POST

(N) STAIR HANDRAIL

(N) STAIR HAND RAIL

SHEET

OF 12

DRAWING NO.DATE

SUB-SHEET

DRAWNDESIGNED CHECKED

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W

IN

G S

/R E

V

IT

S3.01

1/21/2021

MEDICINE LAKE OBSERVATION TOWER

100%

LANDINGS

HH PROJECT #:JEA_200705KBHHH

1" = 1'-0"

3RD LANDING- DEMO PLAN

1" = 1'-0"

3RD LANDING- NEW GRATING AND HANDRAILS

1" = 1'-0"

2ND LANDING- DEMO PLAN

1" = 1'-0"

2ND LANDING- NEW GRATING AND HANDRAILS

1" = 1'-0"

1ST LANDING- DEMO PLAN

1" = 1'-0"

1ST LANDING- NEW GRATING AND HANDRAILS

TYPICAL EXISTING LANDING NOTES:NOTES:

1. REMOVE EXISTING DECKING AND MESH GUARD RAIL.

2. FIELD VERIFY EXISTING PLAN DIMENSIONS.

TYPICAL NEW LANDING NOTES:

1. MAX OPENING SIZE 4". INSTALL 4 3/4" PLANKS TO CORNER.

2. ADD L-2"X2"X3/16 TO BEARING TO PLANE OUT WITH

INTERIOR SUPPORT

3. DECKING TO BE GRID STRUT SAFETY GRATING.

4. ALL FRAMING IS EXISTING UNLESS NOTED WITH (N)

TYPICAL EXISTING LANDING NOTES:NOTES:

1. REMOVE EXISTING DECKING AND MESH GUARD RAIL.

2. FIELD VERIFY EXISTING PLAN DIMENSIONS.

TYPICAL EXISTING LANDING NOTES:NOTES:

1. REMOVE EXISTING DECKING AND MESH GUARD RAIL.

2. FIELD VERIFY EXISTING PLAN DIMENSIONS.

TYPICAL NEW LANDING NOTES:

1. MAX OPENING SIZE 4". INSTALL 4 3/4" PLANKS TO CORNER.

2. ADD L-2"X2"X3/16 TO BEARING TO PLANE OUT WITH

INTERIOR SUPPORT

3. DECKING TO BE GRID STRUT SAFETY GRATING.

4. ALL FRAMING IS EXISTING UNLESS NOTED WITH (N)

TYPICAL NEW LANDING NOTES:

1. MAX OPENING SIZE 4". INSTALL 4 3/4" PLANKS TO CORNER.

2. ADD L-2"X2"X3/16 TO BEARING TO PLANE OUT WITH

INTERIOR SUPPORT

3. DECKING TO BE GRID STRUT SAFETY GRATING.

4. ALL FRAMING IS EXISTING UNLESS NOTED WITH (N)

O P R

L

O N A

IF SSE

R E

E N

G I

N E

TANAM

NO

No.16018PE

KARL B.

HENSHAW

L I C E

S N

L-

X

X

/8

ST

R

IN

G

E R

LANDING

LANDING

13'-6"

T.O. STEEL

0'-0"

CONCRETE/T.O. STEEL

LANDING

L-

X

X

/8

S T

R

IN

G E

R

EXISTING 2X10 TREADS (TO BE

REPLACED WITH METAL TREAD)

LANDING

R

IS

E R

S

T R

E A

D S

EXISTING STRINGERS

(N) CLIPS

(N) POST

(N) WIRE MESH

SEE 5/S4.01 FOR GUARD RAIL SIZING

SEE 5/S4.01 FOR HANDRAIL SIZE

LANDING

LANDING

12'-9"

T.O. STEEL

(RESPECTIVE)

0'-0"

T.O. STEEL

(RESPECTIVE)

EXISTING 2X10 TREADS (TO BE

REPLACED WITH METAL TREAD)

L-

X

X

/8

ST

R

IN

G

E R

LANDING

L-

X

X

/8

S T

R

IN

G E

R

LANDING

R

IS

E R

S

T R

E A

D S

EXISTING STRINGER

(N) POST

(N) WIRE MESH

SEE 5/S4.01 FOR GUARD RAIL SIZING

SEE 5/S4.01 FOR HANDRAIL SIZE

(N) CLIPS

LANDING

LANDING

10'-6"

T.O. STEEL

(RESPECTIVE)

0'-0"

T.O. STEEL

(RESPECTIVE)

EXISTING 2X10 TREADS (TO BE

REPLACED WITH METAL TREAD)

EXISTING STRINGERS

(N) CLIPS

(N) POST

(N) WIRE MESH

SEE 5/S4.01 FOR GUARD RAIL SIZING

SEE 5/S4.01 FOR HANDRAIL SIZE

L-

X

X

/8

ST

R

IN

G

E R

LANDING

L-

X

X

/8

S T

R

IN

G E

R

LANDING

R

IS

E R

S

T R

E A

D S

LANDING

LANDING

9'-0"

T.O. STEEL

(RESPECTIVE)

0'-0"

T.O. STEEL

(RESPECTIVE)

EXISTING 2X10 TREADS (TO BE

REPLACED WITH METAL GRATING)

(N) CLIPS

(N) POST

(N) WIRE MESH

SEE 5/S4.01 FOR GUARD RAIL SIZING

SEE 5/S4.01 FOR HANDRAIL SIZE

L-

X

X

/8

ST

R

IN

G

E R

LANDING

L-

X

X

/8

S T

R

IN

G E

R

LANDING

R

IS

E R

S

T R

E A

D S

SHEET

OF 12

DRAWING NO.DATE

SUB-SHEET

DRAWNDESIGNED CHECKED

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O W

L /D

R A

W

IN

G S

/R E

V

IT

S4.00

1/21/2021

MEDICINE LAKE OBSERVATION TOWER

100%

STAIRS

HH PROJECT #:JEA_200705KBHHH

1/2" = 1'-0"

STAIR 6,7,8,9

1/2" = 1'-0"

STAIR 5

1/2" = 1'-0"

STAIR 4

1/2" = 1'-0"

STAIR 3

NOTES:

1. NEW TREAD TO BE PER ARCH

2. NEW STAIR GUARD RAIL AND POSTS TO BE L-2 1/2"X 2 1/2" X

3/16" @ MAX SPACING OF 4'-0" O.C.

3. SEE 4/S4.01 FOR TREAD CONNECTION

NOTES:

1. NEW TREAD TO BE PER ARCH

2. NEW STAIR GUARD RAIL AND POSTS TO BE L-2 1/2"X 2 1/2" X

3/16" @ MAX SPACING OF 4'-0" O.C.

3. SEE 4/S4.01 FOR TREAD CONNECTION

NOTES:

1. NEW TREAD TO BE PER ARCH

2. NEW STAIR GUARD RAIL AND POSTS TO BE L-2 1/2"X 2 1/2" X

3/16" @ MAX SPACING OF 4'-0" O.C.

3. SEE 4/S4.01 FOR TREAD CONNECTION

NOTES:

1. NEW TREAD TO BE PER ARCH

2. NEW STAIR GUARD RAIL AND POSTS TO BE L-2 1/2"X 2 1/2" X

3/16" @ MAX SPACING OF 4'-0" O.C.

3. SEE 4/S4.01 FOR TREAD CONNECTION

O P R

L

O N A

IF SSE

R E

E N

G I

N E

TANAM

NO

No.16018PE

KARL B.

HENSHAW

L I C E

S N

LANDING

LANDING

6'-9"

T.O. STEEL

(RESPECTIVE)

0'-0"

T.O. STEEL

(RESPECTIVE)

EXISTING 2X10 TREADS (TO BE

REPLACED WITH METAL GRATING)

(N) CLIPS

(N) POST

(N) WIRE MESH

SEE 5/S4.01 FOR GUARD RAIL SIZING

SEE 5/S4.01 FOR HANDRAIL SIZE

L-

X

X

/8

ST

R

IN

G E

R

LANDING

L-

X

X

/8

S T

R

IN

G E

R

LANDING

R

IS

E

R S

T

R E

A D

S

LANDING

LANDING

6'-9"

T.O. STEEL

(RESPECTIVE)

0'-0"

T.O. STEEL

(RESPECTIVE)

EXISTING 2X10 TREADS (TO BE

REPLACED WITH METAL GRATING)

L-

X

X

/8

ST

R

IN

G

E R

LANDING

L-

X

X

/8

S T

R

IN

G E

R

LANDING

(9

R

IS

E R

S

(8

T R

E A

D S

(N) POST

(N) WIRE MESH

SEE 5/S4.01 FOR GUARD RAIL SIZING

SEE 5/S4.01 FOR HANDRAIL SIZE

(N) CLIPS

(N) L1 1/2X1 1/2X3/16

(E) EDGE ANGLE (VARIES)

TYP FULL PERIMETER

WASHER AND NUT

(i) MAG DRILL 3/8" HOLE FOR BOLT

(ii) REUSE (E) HOLES WHERE POSSIBLE

(2) 5/16" ⌀ CARRIAGE BOLTS

EA END OF EA PLANK

DIAMOND ANCHOR PUNCH

1 1/2" GRID STRUT

SAFETY GRATING

(N) L1 1/2X1 1/2X3/16 FULL

PERIMETER BOLT TO EXISTING ANGLE

IN EXISTING HOLES IF ANCHOR CLIP IS

USED

(E) EDGE ANGLE (VARIES)

ANCHOR AND CLAMP

ASSEMBLY, ACA-15

1 1/2" GRID STRUT

SAFETY GRATING

ADD FLAT PLATE TO SUPPORT ANGLE AS THE

EXISTING ANGLES ARE NOT LONG ENOUGH TO

SUPPORT THE GRIP STRUT GRATING

NEW GRIP STRUT GRATING

2" 4 1/2"

FIELD VERIFY EXISTING

7/16" Ø HOLES IN ANGLE

PL 3/16" X 5"

3/16 2-8

3/16 2-8

A

A

VIEW A-A

SIDE CLEARANCENEW TREAD

ANCHORING DEVICE GRIP STRUT

DIAMOND WASHER NO. 12262

(2) 5/16" CARRIAGE BOLTS,

EACH SIDE

(N) PL 1/4" X 2" X 0'-1 1/2"

(E) L- 2" X 2"

ALL EXISTING 2X STAIR TREADS TO BE

REPLACED WITH NEW GRIP STRUT

STAIRS ATTACHED PER THIS DETAIL

3 1/2" 2"

5 1/2" 2"

3 1/2" 1 1/4"

L-2" X 2" X 1/8"

L-2" X 2" X 1/8"

(E) STRINGER

(N) TREAD, TYP

1' - 5 3/4"

S4.01

S4.01

(N) L-2 1/2"X2 1/2"X 3/16" @ 4'-0" O.C.

(N) 1 1/4" ROUND TUBE STEEL HAND GRIP

ALL EXISTING STAIR HANDRAIL ,

MESH GUARDRAIL TO BE

REMOVED AND REPLACED

(N) CLIP

(N) CLIP

ATTACH MESH TO ANGLE

@ 12" O.C. USE 3/8" BOLT

(N) HANDRAIL

(N) BOTTOM RAIL

(N) SUPPORT

(E) STRINGER

(N) MESH

(N) BOTTOM RAIL

(E) STRINGER

(N) MESH

(N) HANDRAIL

SECTION SECTION AT VERTS

(E) L-2" X 2" X 3/16 X 4 1/2" LONG

S4.01

5/8" A325 BOLTS

USE EXISTING HOLES IN

STRINGER WHERE POSSIBLE

1 1/4"

(E) L-2" X 2" X 3/16 X 4 1/2" LONG

SLOTTED HOLE (IN CLIP)

1/8" PLATE CONT FOR MESH

ATTACHMENT

1/8" PLATE

S4.01

L 2" X 2" X 3/16" X 4 1/2" LONG

1"

1/

2" 1"

EXISTING

STRINGER

EXISTING

STRINGER

1 1/4" PIPE HANDRAIL

1/2" SOLID BAR

L 2" X 2" X 3/16"

L 2" X 2" X 3/16"

3/16

3/16

3/16

3/16

3/16

L- 2 1/2" X 2 1/2" X 3/16" POSTS

@ 4'-0" MAX

5/8" Ø A325 BOLT

L2 1/2X2 1/2X 3/16 POST

NOTE: MESH NOT SHOWN

RAILING VERT.

SLOTTED HOLE

(2) 5/8" A325 BOLT

TOWER FRAME ANGLES

GUSSET

S4.01

1/4" BENT PLATE

/4

TOWER FRAME

11/16" DIA HOLE

ANGLE SIZE VARIES

(2) 5/8" Ø BOLT

SLOTTED HOLE

(2) 1/4" GUSSET

RAILING VERT

L-3"X 3" X 3/16"

S4.01

1"

GA

VARIES

1/4" BENT PLATE, SEE

11/S4.01 FOR ELEVATION

MESH PER ARCH

(2) 5/8" A325 BOLT

GUARD RAILING, SEE 3/A2.00

FOR DETAIL

S4.01

TOWER FRAME ANGLE

3/8" BOLT @ 12" O.C. FOR MESH

1 3/4"

4" MAX

8" MAX

11 /16" HOLE FOR 5/8" BOLT

1/4" BENT PLATE

SLOTTED HOLE

1 3/4"

TOWER FRAME ANGLE

GUARD RAIL ANGLE

4" Ø SPHERE SHALL NOT PASS

THRU OPENING, TYP.

1/4" BENT PLATE, SEE DETAIL

10/S4.01 AND 11/S4.01

EXISTING TOWER FRAME ANGLE

TYPICAL POST

L3X3X3/16

L- 3"X 3"X 3/16"

L- 3"X 3"X 3/16"

L- 3"X 3"X 3/16"

S4.01

SHEET

OF 12

DRAWING NO.DATE

SUB-SHEET

DRAWNDESIGNED CHECKED

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R A

W

IN

G S

/R E

V

IT

S4.01

1/21/2021

MEDICINE LAKE OBSERVATION TOWER

100%

STAIRS, DECK DETAIL

HH PROJECT #:JEA_200705KBHHH

1/2" = 1'-0"

STAIR 2

1/2" = 1'-0"

STAIR 1

3" = 1'-0"

DECK CONNECTION DETAILS

1 1/2" = 1'-0"

TREAD TO STRINGER CONNECTION

1 1/2" = 1'-0"

STAIR ELEVATION

1 1/2" = 1'-0"

HANDRAIL SECTION, PERP.

1 1/2" = 1'-0"

SECTION AT STAIR VERT

3" = 1'-0"

PLAN @ RAILING BUMPOUT

3" = 1'-0"

SECTION VIEW @ RAILING BUMPOUT

3" = 1'-0"

PLAN @ CORNER BRACKETS

3" = 1'-0"

ELEVATION OF BENT PLATE

3/4" = 1'-0"

GUARD RAIL ATTACHMENT

NOTES:

1. NEW TREAD TO BE PER ARCH

2. NEW STAIR GUARD RAIL AND POSTS TO BE L-2 1/2"X 2 1/2" X

3/16" @ MAX SPACING OF 4'-0" O.C.

3. SEE 4/S4.01 FOR TREAD CONNECTION

NOTES:

1. NEW TREADS PER ARCH

2. NEW STAIR GUARD RAIL AND POSTS TO BE L-2 1/2"X 2 1/2" X

3/16" @ MAX SPACING OF 4'-0" O.C.

3. SEE 4/S4.01 FOR TREAD CONNECTION

O P R

L

O N A

IF SSE

R E

E N

G I

N E

TANAM

NO

No.16018PE

KARL B.

HENSHAW

L I C E

S N

NEW 2X PRESSURE

TREATED FLOOR

DECKING

NEW 2X PRESSURE

TREATED FLOOR

DECKING

HEAVY DUTY STEEL

T-STRAP HINGES(3)

1X ACCESS DOOR

PANEL. GC TO VFY OPENING/PANEL

DIMENSIONS

HEAVY DUTY

STEEL LOOP HASP

HATCH TO SWING

UPWARD ONTO

PLATFORM

STAINLESS STEEL

HEAVY DUTY SURFACE MOUNTED

HOOK WITH SQUARE BASE PLATE

AND CARABINEER SNAP HOOK ON

BOTH WALL AND HATCH DOOR

(LOCK TOGETHER WHEN OPEN)

LOCK, BY OWNER

PAD OUT (2) 1X'S OR 2X

FOR HINGE IF REQUIRED

CAB WALLC

A

B W

A

LL

VERIFY

(3) HEAVY DUTY

HINGES

S4.02

1X CEDAR BOARDS

AT PERIMETER AND

CENTER

1X6 CEDAR BOARDS

"NO STEP" SIGN

S4.02

(E) CAB WALL

(E) ANGLE

(2) #8 X 1 1/2" LONG SCREW

EACH CONNECTION TO

SUPPORT BOARDS

SHEET

OF 12

DRAWING NO.DATE

SUB-SHEET

DRAWNDESIGNED CHECKED

/D

O W

L /D

R A

W

IN

G S

/R E

V

IT

S4.02

1/21/2021

MEDICINE LAKE OBSERVATION TOWER

100%

HATCH DETAILS

HH PROJECT #:JEA_200705KBHHH 12

1" = 1'-0"

HATCH SECTION

1" = 1'-0"

HATCH PLAN

1" = 1'-0"

HATCH SECTION 2

O P R

L

O N A

IF SSE

R E

E N

G I

N E

TANAM

NO

No.16018PE

KARL B.

HENSHAW

L I C E

S N