B09_Amendment0004_Attach_2_C7.08_REVISED.pdf

1'-1" 1'-2"

1'-3"

61 2"

6"

51 2"

1'-4"

5"

1'-5"

41 2"

V A

R

IE

S S

E E

P

LA

N S

SEE PLANS &

PROFILES FOR

TREAD WIDTH

TW

3' MIN. LANDING (TYP) - SEE PLANS &

PROFILES FOR TYPE AND SPACING

CONCRETE STEPS

SEE PLANS & PROFILES FOR RISER AND TREAD TYPE

CONCRETE STEPS

SEE PLANS & PROFILES FOR

RISER AND TREAD TYPE

1'-0"

WIDTH VARIES - SEE PLANS

3"

ADJACENT

TRAIL

3" MIN.

CLEAR

SEE PLANS &

PROFILES

TREAD/RISER RATIO

1' -0

M

IN

1' -0

M

IN

VARIES -SEE

SECTIONS (TYP)

TREAD

WIDTH

SEE PLANS &

PROFILES

STAINLESS STEEL

HANDRAIL FABRICATION

HANDRAIL POST AS

REQUIRED

WELD

CONFIGURATION A

2 X 6.5" RISERS +13" TREAD = 26

CONFIGURATION C

2 X 5.5" RISER +15" TREAD = 26

CONFIGURATION D

2 X 5.0" RISER +16" TREAD = 26

CONFIGURATION B

2 X 6.0" RISERS +14" TREAD = 26

CONFIGURATION E

2 X 4.5" RISER +17" TREAD = 26

STAIR CONFIGURATIONS

SCALE A

A C7.08

B C7.08

HANDRAIL POST SUPPORT

NOT TO SCALE

STEP NOSING DETAIL

NOT TO SCALE

PROVIDE INTERMEDIATE HANDRAIL

POST AND SUPPORTS AS REQUIRED TO

MEET SPECIFIED STRUCTURAL LOADS.

SEE STRUCTURAL SHEETS COORDINATE

LOCATION WITH STEP TREAD.

E C7.08

C C7.08

TYPICAL CAST-IN-PLACE CONCRETE

STEPS WITH LANDING

SCALE A

CAST IN PLACE CONCRETE

STEPS WITH NON SLIP

FINISH (TYP)

B C7.08

NOSING DETAIL

S U B G R A D E D E P T H V A R I E S

FILL DEPTH

VARIES (TYP)

E C7.08

NOTE: STAIR TREAD/RISER RATIO VARIES DEPENDING ON SPECIFIC STAIR LOCATION AND EXISTING SLOPE CONFIGURATION. MORE THAN ONE TREAD/ RISER COMBINATION MAY BE USED TO ADAPT THE STAIR TO AN EXISTING SLOPE TO REDUCE IMPACTS. ANY CHANGE IN TREAD/RISER RATIO SHALL BE SEPARATED BY A LANDING.

A C7.08

SEE PROFILES

FOR TREAD

RISER RATIO

ADJACENT

TRAIL

RADIUS BEND (TYP)

TOP OF CONCRETE

STEP

1 12" " DIAMETER STAINLESS

STEEL TUBE RAILING. SEE

PLANS FOR LOCATION.FINISH

AS SPECIFIED

STAINLESS STEEL

HANDRAIL. SEE PLANS

FOR SIZE, LOCATION,

AND SINGLE OR

DOUBLE SIDED

HANDRAILS

PROVIDE

INTERMEDIATE

HANDRAIL POST AND

SUPPORTS AS

REQUIRED TO MEET

SPECIFIED

STRUCTURAL LOADS.

SEE STRUCTURAL

SHEETS COORDINATE

LOCATION WITH STEP

TREAD.

STAINLESS STEEL

POST (beyond)

APPROXIMATE

GRADE OF

EXISTING DIRT

CAVE TRAIL

SURFACE

SECTION

E C7.08

EQUAL TO TREAD WIDTH

(TW)

RETURN TO HANDRAIL

AND WELD TO POST

(TYP)

PROVIDE MID-RAIL

FOR ALL

NON-REMOVABLE

HANDRAILS

REBAR TO BE

DETERMINED (TYP)

FILL DEPTH

VARIES - SEE

GRADING PLANS AND

PROFILES (TYP)

STEP

NOSING

DETAIL

CAST IN PLACE

CONCRETE STEPS

WITH LANDING (TYP)

EXISTING CONCRETE STEPS TO

REMAIN AND BE CLEANED.

DISPOSE OF EXCESS DIRT AS

DIRECTED BY CO OR USE FOR

TRAIL FILL (TYP)

BELOW GRADE EXISTING CONCRETE STEP

CONFIGURATION FOR STAIRS UNKNOWN. MODIFY

EXISTING STEP AS REQUIRED TO ACCOMMODATE

NEW IMPROVEMENTS.

EXTEND NEW RAILINGS AND CONNECT TO EXISTING TO

REMAIN. VERIFY EXISTING RAILING CONFIGURATION IN

FIELD. PROVIDES NEW WELDS AS SPECIFIED.

D C7.08

CAST-IN-PLACE CONCRETE STAIRS EXTENSION

SCALE A

END HANDRAIL

STAINLESS STEEL TUBE

RAILING TO MATCH

EXISTING. FINISH AS

SPECIFIED

SEE PLANS FOR TRAIL

TYPE.MINIMUM

3 FT. LANDING - LESS

THAN 1.5% SLOPE

GRIT SURFACE FIBERGLASS

SAFETY TREAD AT EACH

STEP, AS SPECIFIED WITHIN

SECTION 033053. INSTALL AS

PER MANUFACTURER'S

INSTRUCTIONS

ELEVATION

SEE STRUCTURAL

PLAN FOR REBAR

AND CONCRETE

STAIR FOUNDATIONS.

B C7.08

S E

E P

LA

N

S

P R

O F

IL

E

S F

O R

R

IS

E R

S3.0

1% (TYP) 1% (TYP) 1% (TYP) 1% (TYP) 1% (TYP)

1' -0

M

IN

COORDINATE STAIR

NOSING RADIUS WITH

SAFETY TREAD

3"

FINAL CONSTRUCTION DOCUMENTS

TIMOTHY J.

S

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HOGAN

05/20/191 0 1 2

SCALE IN FEET

SCALE A

REVISED PER CONTRACTORS PRE-BID QUESTIONS 07/15/2019