OFFICE OF STRUCTURES

STRUCTURAL DETAIL MANUAL

Chapter 02 - Substructure

SECTION 04

PIERS
(SUB-PR)
 * GUIDE SHEET FOR PLAN DEVELOPMENT ONLY - DO NOT INCLUDE THIS SHEET IN CONTRACT PLANS *

ALTERNATE CAP DETAIL

Scale: ‘'' = 1'-0''

1''
'
• '

Cap Length

5'' at lowest pad

'
-6'

n.

*
mi

9''
2'

1'' x •'' scoring

2'-6'' min. dia. 0.4 S max.
1'' x •'' scoring all around c of Column
cap to facilitate possible
future widening. 18'-0'' Maximum

S S

A B B B B

ELEVATION
Scale: ‘'' = 1'-0''

*All main bars to be extended into this area

so that the welded extension indicated on
REBAR-ER-101 can be utilized. Designer must keep
in mind this might necessitate more steel than
required for original design.

Note:
1.Detail is for roadway widths and skew * FOR OFFICE USE ONLY *
SUBSTRUCTURE - PI

angle requiring a cap length less than 50', APPROVAL

STATE OF MARYLAND
measured along center line of pier. DIRECTOR DEPARTMENT OF TRANSPORTATION
OFFICE OF STRUCTURES
2.When bridge seat elevations are such that STATE HIGHWAY ADMINISTRATION
the height of any pad becomes greater than DATE:07/26/2006 OFFICE OF STRUCTURES

1'-0'' and the sloping of cap can eliminate or

alleviate this condition then cap shall be
VERSION DESIGN CRITERIA FOR
sloped as indicated in ''Alternate Cap Detail''. TYPICAL REINFORCED CONCRETE PIER
3.For Section A-A and B-B see sheet 4 of 4. (CAP LENGTH LESS THAN 50')
1.0

1 OF 4
ER

DETAIL NO. SUB-PR-101 SHEET

 * GUIDE SHEET FOR PLAN DEVELOPMENT ONLY - DO NOT INCLUDE THIS SHEET IN CONTRACT PLANS *

ALTERNATE CAP DETAIL

Scale: ‘'' = 1'-0''

1''
'
• '

5'' at
lowest pad
Cap Length
'
-6'

n.
mi

9''
2'

1'' x •'' scoring 2'-6'' min. dia. 0.4 S max.

c of Column c of Column
all around cap
to facilitate
18'-0'' Maximum
possible future 1'' x •''
widening. scoring
S S S

B B A B B

ELEVATION
Scale: ‘'' = 1'-0''

*All main bars to be extended into this area

so that the welded extension indicated on
REBAR-ER-101 can be utilized. Designer must keep
in mind this might necessitate more steel than
required for original design.

Note:
1.Detail is for roadway widths and skew * FOR OFFICE USE ONLY *
SUBSTRUCTURE - PI

angle requiring a cap length between 50' and APPROVAL

STATE OF MARYLAND
68', measured along center line of pier. DIRECTOR DEPARTMENT OF TRANSPORTATION
OFFICE OF STRUCTURES
2.When bridge seat elevations are such that STATE HIGHWAY ADMINISTRATION
the height of any pad becomes greater than DATE:07/26/2006 OFFICE OF STRUCTURES

1'-0'' and the sloping of cap can eliminate or

alleviate this condition then cap shall be
VERSION DESIGN CRITERIA FOR
sloped as indicated in ''Alternate Cap Detail''. TYPICAL REINFORCED CONCRETE PIER
3.For Section A-A and B-B see sheet 4 of 4. (CAP LENGTH 50' - 68')
1.0

2 OF 4
ER

DETAIL NO. SUB-PR-101 SHEET

 * GUIDE SHEET FOR PLAN DEVELOPMENT ONLY - DO NOT INCLUDE THIS SHEET IN CONTRACT PLANS *

Bottom of adjacent caps

shall be at same elevation.

ALTERNATE CAP DETAIL

Scale: ‘'' = 1'-0''

1''
'
• '

cof Longitudinal Expansion

Joint in Superstructure.
n.
'm i

2 @ 3'' = 6''
-6'

5'' at lowest pad

2'

*
9''

Bottom of 2'-6'' min. dia. 0.4 S

adjacent caps Max.
shall be at 18'-0'' maximum 1'' x •''
same elevation.
scoring

S S 0.8 S *
* S S

A B B B B B B

A
1'' x •'' scoring all around
cap to facilitate possible
future widening.

ELEVATION
Scale: ‘'' = 1'-0''

*All main bars to be extended into this area

so that the welded extension indicated on
REBAR-ER-101 can be utilized. Designer must keep
in mind this might necessitate more steel than
required for original design.

*
*If possible
Note:
1.Criteria for individual pier units shall be as
shown on sheets 1 and 2 of 4. * FOR OFFICE USE ONLY *
SUBSTRUCTURE - PI

2.When bridge seat elevations are such that APPROVAL

STATE OF MARYLAND
the height of any pad becomes greater than DIRECTOR DEPARTMENT OF TRANSPORTATION
1'-0'' and the sloping of cap can eliminate or OFFICE OF STRUCTURES STATE HIGHWAY ADMINISTRATION
alleviate this condition then cap shall be DATE:07/26/2006 OFFICE OF STRUCTURES

sloped as indicated in ''Alternate Cap Detail''.

3.Whenever possible the S dimensions shall
VERSION DESIGN CRITERIA FOR
remain equal. TYPICAL REINFOCRED CONCRETE PIER
4.For Section A-A and B-B see sheet 4 of 4. (CAP LENGTH LESS THAN 50')
1.0

3 OF 4
ER

DETAIL NO. SUB-PR-101 SHEET

 * GUIDE SHEET FOR PLAN DEVELOPMENT ONLY - DO NOT INCLUDE THIS SHEET IN CONTRACT PLANS *

c c
of column and of column and
c c
of footing. of footing.
7'-0'' min. 3'-6''

2'-0'' 1'-6''
min.
*If rock is present
these notes must
Three #6 @ 4'' c/c each way appear on Plans.

3''cl. over each row of piles. 3''cl.

n.
n.

'm i
'm i

Rock

'
3'
(Rebar mat pattern Line

-6'
-0'

over piles shall be 3''cl.

2'
'
3'

3''cl.

-0'
shown on Plan View

1'
showing pile pattern.)

Steel H or CIP Concrete *

1'-0'' min.
3''cl. piling, as foundation 3''cl. into rock.
conditions warrant. 7'-0'' min.
To edge 9''
batter piles as necessary.
of pile. min. Maximum batter 5:12.
Note:
Where solid rock exists consideration
should be given to individual
footings, 7'-0'' x 7'-0'' x 2'-0'' minimum size.

SECTION A-A WITH PILES SECTION A-A SPREAD FOOTING

Scale: ‚'' = 1'-0'' Scale: ‚'' = 1'-0''

2'-6'' min.

Dowels
10'' x 10'' x Minimum Depressed Key,
centered in column at top Main column bars shown solid.
and bottom of column.
2'' clear to spiral.

Spirals

MAXIMUM NUMBER OF MAIN

COLUMN BARS

Reinforcing Bar Size

SECTION B-B
Column
Diameter Scale: •'' = 1'-0''
#9 #10 #1 1
2'-6'' 16 15 14
2'-8'' 18 16 15
2'-10'' 19 18 17
3'-0'' 20 19 18
3'-2'' 22 20 19
3'-6'' 25 23 22

* FOR OFFICE USE ONLY *

SUBSTRUCTURE - PI

APPROVAL
Note: STATE OF MARYLAND
1.Reinforcing steel for column spirals shall be DIRECTOR DEPARTMENT OF TRANSPORTATION
OFFICE OF STRUCTURES
cold drawn steel conforming to ASTM A 82. STATE HIGHWAY ADMINISTRATION
2.The design bearing pressure for spread DATE: <DATE> OFFICE OF STRUCTURES

footings shall be shown on applicable Pier

VERSION
Sheet thus: ''Maximum Design Bearing Pressure DESIGN CRITERIA FOR
for Pier is Tons/s.f. '' TYPICAL REINFORCED CONCRETE PIER
1.0

4 OF 4
ER

DETAIL NO. SUB-PR-101 SHEET

 L 8'' x 8'' x ‡''

c Pier

Flow

90
One vertical
rebar at
this bend.

'
2'
PLAN
Scale : ‚'' =1'-0''

Corner rebar to be
continuous around corner.

‡'' x 8'' long studs @ 1'-0''

Staggered ‡'' x 8'' long studs @ 1'-0''
Shop welded.

Design High Water

6'-0'', or top of pier,

whichever is less.

6'' Typical Normal

6'-0'', or top of footer, Water
whichever is less. Surface.

Top of Footing

ELEVATION
Scale : ‚'' =1'-0''

Note:
1.Angle to be steel conforming to ASTM A-36.
SUBSTRUCTURE - PI

APPROVAL
2.Angle to be hot dipped galvanized, after STATE OF MARYLAND
DIRECTOR DEPARTMENT OF TRANSPORTATION
fabrication, in accordance with ASTM A-123. OFFICE OF STRUCTURES
STATE HIGHWAY ADMINISTRATION
DATE: 01/22/2001 OFFICE OF STRUCTURES

VERSION

NOSE ANGLE FOR SOLID SHAFT WATER PIER

1.0

1 OF 1
ER

DETAIL NO. SUB-PR-201 SHEET

 ‚'' Thick Fiberglass
Jacket

2'
‚'' Thick Fiberglass Jacket

'
(no shop or field seams).

Cast-in-Place
Concrete Column
6 gage 4 gage

2'' Epoxy Coated Slab

Bolster (typ.). Embeddded in
fiberglass during
manufacturing process. 2'-0'' max.

2'' Epoxy Coated Slab Bolsters.

Bolsters equally spaced
Maximum spacing 2'-0''
(typical).
PLAN
Scale: ‚'' = 1'-0''

Outside diameter of fiberglass =

outside diameter of
Cast-in-place Concrete Column
Jacket * = L

Mean Waterline
(Average of

L/2
mean high
water and
mean low
water). **
ve
Protecti
t of

L/2
mi
Li

2'' Epoxy Coated Slab

Bolsters (Typical)

* Unless otherwise
specified L=8'.

ELEVATION ** Unless otherwise

specified, locate
Scale: ‚'' = 1'-0''
at this elevation.
SUBSTRUCTURE - PI

APPROVAL
Notes: STATE OF MARYLAND
DIRECTOR DEPARTMENT OF TRANSPORTATION
1. For fiberglass requirements see 921.11. OFFICE OF STRUCTURES
STATE HIGHWAY ADMINISTRATION
2. For other fiberglass jacket requirments DATE: 01/22/2001 OFFICE OF STRUCTURES
see Special Provisions.
VERSION
3. Inside of jacket shall be thoroughly cleaned. FIBERGLASS JACKET FOR
CAST-IN-PLACE CONCRETE COLUMN
1.0

1 OF 1
ER

DETAIL NO. SUB-PR-301 SHEET

 ‚'' Thick Fiberglass
jacket Outside Diameter =
•'' of
epoxy Solid Fiberglass Spacer pile outside diameter
grout. see Detail C below. plus 1 •''

'
3'

each at top and bottom .

Outside face
of Concrete Pile.

Jacket * = L
‚'' Thick Fiberglass Meanwater
Fiberglass Tape
Jacket (No shop or Line (Average
2'' Wide, shop

L/2
applied. field seams). of mean high

berglass Spacers
water and

ve
mean low

Protecti
water). **
Concrete Pile

- one
A

t of
2'-0'' max. at

Fi
face of jacket

mi

m um
Li

ni

L/2
row s m i
Spacers to be
placed at equal
Fill space with
intervals. Maximum

Tw o
pourable epoxy grout.
spacing 2'-0''

'
3'
(Typical)
*Unless otherwise
PLAN specified L=8'.
Scale: •'' = 1'-0''
** Unless otherwise
specified, locate
at this elevation. ELEVATION
Scale: …'' = 1'-0''

B
Top of Jacket

‚'' Protective •''

Jacket Fiberglass Spacer

'
3'
see Detail C below
n

ƒ''
'm i

Finish with
'

fillet for
'

1'

2'
2'

drainage
'
1'

Fiberglass spacer c of Spacer

'm i

bound to jacket with

2'

fiberglass tape in shop. 1 •'' 2'' Wide

Fiberglass
3''
Concrete Pile Tape (Typ).

SECTION B-B
B Scale: None
'
'
‹

SECTION A-A …'' R

'

Scale: None
'

3''
ˆ

DETAIL C
Scale: None
Notes:
1. No vertical joints allowed.
SUBSTRUCTURE - PI

2. Jackets to be placed before cap or footer

APPROVAL
is poured. STATE OF MARYLAND
DIRECTOR DEPARTMENT OF TRANSPORTATION
3. Fiberglass shall conform to 921.11. OFFICE OF STRUCTURES
STATE HIGHWAY ADMINISTRATION
4. For epoxy grout material requirements see
DATE: 01/22/2001 OFFICE OF STRUCTURES
Special Provisions.
5. Inside of jacket shall be thoroughly cleaned. VERSION

6. Jacket pile areas to be cleaned just prior

FIBERGLASS JACKET FOR
to placing jacket refer to Section 418. NEW CYLINDER PILE
1.0

1 OF 1
ER

DETAIL NO. SUB-PR-302 SHEET

 c Bent

Bent cap

Substructure

Concrete

'
1'
'
6'
Voids to be filled
with grout

B B
berglass jacket

'

Typ.
-0'
ƒ'' x 6'' long studs

1'
each side of web as

T
shown
berglass jacket
mi
Plans for li ts
n fi

Approximate

F
water surface
thi

D
grout w i

fi

A
See

of

Approximate
ts of

stream bed

R
mi
Li

One piece ‚'' minimum

fiberglass jacket
(no shop or field seams)

D
'
6'

‚'' x 2'' wide fiberglass

spacer (Typ.)

Steel H pile
ƒ'' x 6'' long
studs @ 1'-0'' c/c
each side of web ELEVATION
as shown Scale: •''= 1'-0''

'
5' One piece Notes:
‚'' fiberglass jacket 1. Fiberglass shall conform to 921.13.
2'' min.
(no shop or field seams) 2.For fiberglass and grout material
requirements see Special Provisions.
Steel H pile 3.Clean pile area to be jacketed
just prior to placing jacket.
Voids to be 4.Cost of studs to be included in
filled with ‚'' x 2'' wide pertinent protective jacket item.
grout fiberglass spacer bound to
inside face of jacket with
2''
fiberglass tape in shop (Typ.)
Continuous 1•'' slab * PRELIMINARY DRAFT *
SUBSTRUCTURE - PI

bolster embedded in APPROVAL

STATE OF MARYLAND
jacket (Typ.)
DIRECTOR DEPARTMENT OF TRANSPORTATION
OFFICE OF STRUCTURES
STATE HIGHWAY ADMINISTRATION
SECTION B-B DATE: OFFICE OF STRUCTURES

Scale: None VERSION FIBERGLASS PROTECTIVE JACKET

FOR H PILES
(NEW CONSTRUCTION)
DRAFT

1 OF 1
ER

DETAIL NO. SUB-PR-303 SHEET

 Equal spaces (min. Equal spaces (min. spacing 16'-0'')
spacing 12'-0'')
Typical each side No jacket joint shall
typ. each end.
occur inside or end
‚'' Protective jacket
within 4' of square
around entire footer
corner.
Optional jacket
joint.
Protective jacket anchor
see detail this sheet. Every effort shall be
made to minimize
number of jacket joints.
See protective jacket joint B
detail this sheet.

B
Cast-in-place
concrete footing.
PLAN
Scale: None

See Detail ''A'' Slope top of footing in this

below. area for drainage. 2- ƒ'' x 7'' long fiberglass
bolts with fiberglass nuts
c
spaced max. 12'' /c vertically.
'
8'

'

Top and bottom bolts to be

'4'

4' from end of jacket.

4'

Equal Spacing
spacing Limits of fiberglass
Joint to be sealed with
(max spacing tape through each
epoxy and epoxy grout.
2'-0'' typ.) trough (Typical).
2•''2•''
ng

2'' protective jacket 1‚''1‚'' Protective jacket

Footi

anchor (typical). A

'
‚ '
‚'' protective
jacket.

'
Cast-in-place
'

‚ '
'

‚ '

'
7'

… '
concrete footing.

3'' c jacket joint ‚'' Gap

Bottom of footing. Fiberglass plate
Footing …'' x 7'', full height
of joint.
SECTION B-B PROTECTIVE JACKET JOINT DETAIL
Scale:…'' = 1'-0'' Scale: 3'' = 1'-0''

Top of Footing
4''
‚'' Protective Jacket
'
4'

'

ng
3'

Footi
‚'' x 2'' Protective
Jacket Anchor.
2'' 2'' 8'' Fiberglass tape width of
each trough extend 3'' onto
jacket face each side of trough.
‚'' Protective Jacket

SECTION A-A
DETAIL A Scale: 1 •'' = 1'-0''

Scale: None
SUBSTRUCTURE - PI

APPROVAL
STATE OF MARYLAND
Notes: DIRECTOR DEPARTMENT OF TRANSPORTATION
1. For Fiberglass requirements see 921.11. OFFICE OF STRUCTURES
STATE HIGHWAY ADMINISTRATION
2. For other fiberglass and epoxy grout DATE: 01/22/2001 OFFICE OF STRUCTURES
material requirements see Special Provisions.
VERSION
3. Inside of jacket shall be thoroughly cleaned. FIBERGLASS JACKET FOR
CAST-IN-PLACE CONCRETE FOOTING
1.0

1 OF 1
ER

DETAIL NO. SUB-PR-304 SHEET