STEEL CANTILEVER SIGN TRUSS

STANDARDS

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SPECIFICATIONS.

INDEX FOR GALVANIZED STEEL NOTES: GENERAL NOTES:

STEEL CANTILEVER SIGN TRUSS STANDARDS ALL STEEL DIAGONALS AND STRUTS SHALL COMPLY WITH ASTM A53 GRADE B, ALL STEEL CANTILEVER TRUSS SIGN SUPPORTS ARE DESIGNED FOR 50 LB/FT¢
5 INCH" TO "1/2 INCH" IN CHARPY V-NOTCH TOUGHNESS NOTE FOR TEXT

TYPE E OR S; THE AMERICAN PETROLEUM INSTITUTE (API) 5L GRADE B; ASTM WIND PRESSURE ON SUPPORT MEMBERS AND 50 LB/FT¢ ON SIGNS.
A500 GRADE B; ASTM A500 GRADE C; ASTM A1085; API 5L GRADE X42; OR API 5L
SCST-01-17 INDEX AND NOTES GRADE X52. THESE MEMBERS DESIGNATED AS STEEL PIPE SHALL HAVE A MINIMUM SHOP DRAWINGS SHALL BE SUBMITTED BY THE CONTRACTOR IN ACCORDANCE WITH
YIELD STRENGTH OF 35 KSI. ARTICLE 1105.03 OF THE STANDARD SPECIFICATIONS.
SCST-02-17 SIGN SUPPORT VIEWS
¡REVISED 03-2019: MODIFIED GALVANIZED STEEL NOTES TO ADDRESS MATERIAL AVAILABILITY ISSUES. MODIFIED GALVANIZED STEEL FASTENER NOTES TO ADDRESS CHANGES IN ASTM

ALL STEEL CHORDS SHALL COMPLY WITH ASTM A500 GRADE B, ASTM A500 GRADE C, CLEAR DISTANCE FROM FACE OF CONCRETE TO THE NEAREST REINFORCING BAR SHALL
SCST-03-17 ISOMETRIC VIEW TYPICAL TRUSS
ASTM A1085, API 5L GRADE X42 OR API 5L GRADE X52. THESE MEMBERS DESIGNATED BE 2" UNLESS OTHERWISE SHOWN.
SCST-04-17 TRUSS-TO-POST CONNECTION DETAILS AS HOLLOW STRUCTURAL SECTIONS (`HSS`) SHALL HAVE A MINIMUM YIELD STRENGTH
OF 42 KSI. KEYWAY DIMENSIONS SHOWN ON THE PLANS ARE BASED ON NOMINAL DIMENSIONS
SCST-05-17 GUSSET PLATE CONNECTION DETAILS UNLESS STATED OTHERWISE. IN ADDITION, THE BEVEL USED ON THE KEYWAY SHALL
THE STEEL END POST SHALL COMPLY WITH API 5L GRADE X42 OR APL 5L GRADE X52. BE LIMITED TO A MAXIMUM OF 10 DEGREES FROM VERTICAL.
SCST-06-17 POST BASE SUPPORT DETAILS
THE POST SHALL HAVE A MINIMUM YIELD STRENGTH OF 42 KSI.
STEEL CANTILEVER SIGN TRUSSES SHALL NOT BE USED ON BRIDGES WITHOUT THE
SCST-07-17 SIGN ATTACHMENT DETAILS
ALL STEEL SHAPES, BARS AND PLATES SHALL COMPLY WITH ASTM A36, ASTM A572 APPROVAL OF THE BRIDGES AND STRUCTURES BUREAU.

SCST-08-17 FOUNDATION DETAILS - SPREAD FOOTING GRADE 50, ASTM A709 GRADE 36 OR ASTM A709 GRADE 50.

SCST-09-17 FOUNDATION DETAILS - DRILLED SHAFT STEEL WELDING SHALL BE IN ACCORDANCE WITH THE CURRENT EDITION OF THE
STRUCTURAL ALIGNMENT/TOLERANCE NOTES:
AWS SPECIFICATIONS D1.1, STRUCTURAL WELDING CODE--STEEL. THE PRECISE INSTALLATION AND ALIGNMENT OF ALL COMPONENTS OF THE CANTILEVER
¡REVISED 12-2021:CLARIFIED THAT A WRENCH WITH A 42-INCH HANDLE LENGTH IS REQUIRED TO TIGHTEN ANCHOR-BOLT NUTS TO SNUG-TIGHT CONDITION.

SIGN TRUSS AND ITS SUPPORT SHALL BE CONSIDERED ESSENTIAL. THE CONTRACTOR
ULTRASONIC TESTING SHALL BE PERFORMED ON THE POST-TO-BASE-PLATE SHALL SUBMIT DOCUMENTATION TO THE ENGINEER SHOWING THAT THE VARIOUS
COMPLETE-JOINT-PENETRATION GROOVE WELD. COMPONENTS HAVE BEEN MEASURED AND ARE LOCATED WITHIN THE TOLERANCES
TO AWS NOMENCLATURE.

LISTED BELOW.
ALL STEEL SECTIONS SHALL BE HOT-DIPPED GALVANIZED AFTER FABRICATION
IN ACCORDANCE WITH ASTM A123. PROVIDE VENT HOLES FOR GALVANIZING. 1) THE FOUNDATION SHALL BE ACCURATELY LOCATED, WITH THE CENTER OF THE
SHOW LOCATION AND SIZE OF VENT HOLES ON SHOP DRAWINGS. ANCHOR BOLT GROUP NOT MORE THAN 1 INCH FROM THE PLAN LOCATION IN THE
DIRECTION PARALLEL WITH THE TRUSS AND NOT MORE THAN 1 INCH FROM THE
CHARPY V-NOTCH TOUGHNESS REQUIREMENTS IN ACCORDANCE WITH ARTICLE PLAN LOCATION IN THE DIRECTION PERPENDICULAR TO THE TRUSS.
ANCHOR-BOLT`NUT`TIGHTENING`PROCEDURE: 4152.02, OF THE STANDARD SPECIFICATIONS SHALL APPLY TO ALL STEEL
GREATER THAN • INCH IN THICKNESS. 2) ANCHOR BOLTS SHALL BE PLUMB WITHIN ‚ INCH PER FOOT FROM VERTICAL.
1) THIS WORK SHALL BE PERFORMED ONLY ON DAYS WITH WINDS LESS THAN 15 MPH.
ALL TIGHTENING OF THE NUTS IS TO BE DONE IN THE PRESENCE OF THE 3) ANCHOR BOLTS SHALL PROJECT ABOVE TOP OF FOUNDATION WITHIN ‚ INCH OF
INSPECTOR. ONCE THE TIGHTENING PROCEDURE IS STARTED IT MUST BE
GALVANIZED STEEL FASTENER NOTES: THE PLAN DIMENSION.
¡REVISED 04-2020: CHANGED "OFFICE OF BRIDGES AND STRUCTURES" TO "BRIDGES AND STRUCTURES BUREAU". REVISED "0.

COMPLETED ON ALL OF THE BASE PLATE NUTS WITHOUT PAUSE OR DELAY. GALVANIZED STEEL FASTENERS SHALL BE IN ACCORDANCE WITH ARTICLE
UNIFORMITY. CHANGED "FULL-PENETRATION GROOVE WELD" TO "COMPLETE-JOINT-PENETRATION GROOVE WELD" TO CONFORM

2408.03, S AND ARTICLE 4187.01, C, 2 OF THE STANDARD SPECIFICATIONS. 4) THE TRUSS SUPPORT POST SHALL BE PLUMB WITHIN ˆ`INCH PER FOOT OF
2) PROPERLY SIZED WRENCHES DESIGNED FOR TIGHTENING NUTS AND/OR BOLTS REGULAR NUTS AND JAM NUTS SHALL BE ASTM A563 GRADE DH HEAVY HEX. VERTICAL IN TWO PERPENDICULAR DIRECTIONS.
SHALL BE USED TO AVOID ROUNDING OR OTHER DAMAGE TO THE NUTS. REGULAR NUTS MAY BE SUBSTITUTED FOR JAM NUTS. LOCK WASHERS SHALL NOT
ADJUSTABLE END WRENCHES OR PIPE WRENCHES SHALL NOT BE USED. BE SUBSTITUTED FOR JAM NUTS. ASTM A449 TYPE 1 BOLTS OR ASTM F3125 5) THE HORIZONTAL LINES BETWEEN CHORDS SHALL BE LEVEL WITHIN ˆ`INCH PER
GRADE A325-T TYPE 1 BOLTS MAY BE SUBSTITUTED FOR ASTM F3125 GRADE FOOT OF HORIZONTAL, AND THE VERTICAL LINES BETWEEN CHORDS SHALL BE
3) BASE PLATE, ANCHOR BOLTS AND NUTS ARE TO BE FREE OF ANY DIRT OR DEBRIS. A325 TYPE 1 BOLTS WHERE NECESSARY TO ASSURE PROPER BOLT LENGTH AND PLUMB WITHIN ˆ`INCH PER FOOT OF VERTICAL.
THREAD LENGTH.
4) APPLY STICK WAX OR BEES WAX TO THE THREADS AND BEARING SURFACES OF THE
ANCHOR BOLTS, NUTS AND WASHERS. UNLESS OTHERWISE NOTED ON THE PLANS, GALVANIZED STEEL FASTENERS SHALL
BE TENSIONED BY TURN-OF-NUT METHOD.
5) TIGHTEN TOP NUTS SO THEY FULLY CONTACT THE BASE PLATE. TIGHTEN SPECIFICATIONS:
LEVELING NUTS TO SNUG-TIGHT CONDITION. SNUG TIGHT IS DEFINED AS THE
FULL EFFORT OF ONE PERSON ON A WRENCH WITH A LENGTH EQUAL TO 42
U-BOLT NOTES: DESIGN: AASHTO LRFD SPECIFICATIONS FOR STRUCTURAL SUPPORTS FOR
HIGHWAY SIGNS, LUMINAIRES AND TRAFFIC SIGNALS, SERIES OF 2015.
INCHES. APPLY FORCE AS CLOSE TO THE END OF THE WRENCH AS POSSIBLE. U-BOLTS MAY BE MADE OF GALVANIZED STEEL OR STAINLESS STEEL AND SHALL BE
CONSTRUCTION: IOWA DEPARTMENT OF TRANSPORTATION STANDARD SPECIFICATIONS
PULL FIRMLY BY LEANING BACK AND USING ENTIRE BODY WEIGHT ON THE END OF IN ACCORDANCE WITH ARTICLE 4187.01, C, 2 OF THE STANDARD SPECIFICATIONS.
FOR HIGHWAY AND BRIDGE CONSTRUCTION, SERIES 2015, PLUS
THE WRENCH UNTIL THE NUT STOPS ROTATING. USE A MINIMUM OF TWO WASHERS, REGULAR NUTS AND JAM NUTS SHALL USE THE SAME ALLOY PROPERTIES
APPLICABLE GENERAL SUPPLEMENTAL SPECIFICATIONS, DEVELOPMENTAL
SEPARATE PASSES OF TIGHTENING. SEQUENCE THE TIGHTENING IN EACH PASS AS THOSE OF THE U-BOLTS SPECIFIED. REGULAR NUTS MAY BE SUBSTITUTED FOR
SPECIFICATIONS, SUPPLEMENTAL SPECIFICATIONS AND SPECIAL
SO THAT THE NUT ON THE OPPOSITE SIDE, TO THE EXTENT POSSIBLE, WILL BE JAM NUTS. LOCK WASHERS SHALL NOT BE SUBSTITUTED FOR JAM NUTS.
dg n - SCST-01-17 - THIS SHEET ISSUED 07-2017.

PROVISIONS SHALL APPLY TO CONSTRUCTION WORK ON THIS PROJECT.

SUBSEQUENTLY TIGHTENED UNTIL ALL NUTS IN THAT PASS HAVE BEEN TIGHTENED.

6) TIGHTEN TOP NUTS TO SNUG TIGHT AS DESCRIBED FOR THE LEVELING NUTS.
ANCHOR BOLT NOTES: DESIGN STRESSES:
ALL ANCHOR BOLT MATERIALS AND GALVANIZING SHALL BE IN ACCORDANCE WITH
DESIGN STRESSES FOR MATERIALS ARE IN ACCORDANCE WITH AASHTO LRFD
7) MATCH-MARK THE TOP NUTS AND BASE PLATE USING PAINT, CRAYON OR OTHER ARTICLE 4187.01, C, 3 OF THE STANDARD SPECIFICATIONS.
SPECIFICATIONS FOR STRUCTURAL SUPPORTS FOR HIGHWAY SIGNS, LUMINAIRES
APPROVED MEANS TO PROVIDE A REFERENCE FOR DETERMINING THE RELATIVE
AND TRAFFIC SIGNALS, SERIES OF 2015.
ROTATION OF THE NUT AND BASE PLATE DURING TIGHTENING. USING A BENDING OR WELDING OF ANCHOR BOLTS SHALL NOT BE ALLOWED.
STRIKING OR HYDRAULIC WRENCH, FURTHER TIGHTEN THE TOP NUTS IN TWO
REINFORCING STEEL IN ACCORDANCE WITH AASHTO LRFD BRIDGE DESIGN
PASSES AS LISTED BELOW. SEQUENCE THE TIGHTENING IN EACH PASS SO THAT ANCHOR BOLTS SHALL COMPLY WITH ASTM F1554 GRADE 105.
SPECIFICATIONS SERIES OF 2014, SECTION 5, GRADE 60.
THE NUT ON THE OPPOSITE SIDE, TO THE EXTENT POSSIBLE, WILL BE
SUBSEQUENTLY TIGHTENED UNTIL ALL NUTS IN THAT PASS HAVE BEEN TURNED.
SPREAD FOOTING FOUNDATION CONCRETE IN ACCORDANCE WITH AASHTO LRFD
DO NOT ROTATE THE LEVELING NUT DURING THE TOP NUT TIGHTENING.
BRIDGE DESIGN SPECIFICATIONS SERIES OF 2014, SECTION 5, f'c = 4.0 KSI.

ANCHOR-BOLT SIZE FIRST PASS SECOND PASS TOTAL ROTATION

DRILLED SHAFT FOUNDATION CONCRETE IN ACCORDANCE WITH AASHTO LRFD
BRIDGE DESIGN SPECIFICATIONS SERIES OF 2014, SECTION 5, f'c = 4.0 KSI.
3"½ 1/12 TURN 1/12 TURN 1/6 TURN

8) LUBRICATE, PLACE AND TIGHTEN THE JAM NUTS TO SNUG TIGHT.

APPROVED BY BRIDGE ENGINEER

LATEST REVISION DATE
¡STEELCANTILEVERSIGNTRUSS.

STANDARD DESIGN

12-2021
STEEL CANTILEVER SIGN TRUSS
JULY, 2017

INDEX AND NOTES SCST-01-17

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 TRUSS MAX.`SIGN MAX. SIGN POST
CAMBER
LENGTH HEIGHT AREA X*Y CHORDS WALL
L 2'-6 C
MAX. L Y FT² THICKNESS
2 MIN. X AS SHOWN ON SIGN INSTALLATION DETAILS SHEETS
40'-0 1 20'-0 400 HSS 6.625 x 0.500 2 0.625" 4"

`
MAX.)
`

-6
38'-0 20'-0 400 HSS 6.625 x 0.432 0.625" 3•"

6'

`
(
¡REVISED 03-2019: MODIFIED CHORD SCHEDULE TO ADDRESS MATERIAL AVAILABILITY ISSUES. REPLACED NOTE IDENTIFIER ASTRISKS WITH ENCIRCLED NUMBERS TO IMPROVE READABILITY.

36'-0 20'-0 400 HSS 6.625 x 0.432 0.625" 3"

3"½ STANDARD STEEL
ENCIRCLED NOTE 2 THAT ALLOWS

F PIPE (`TYP. DIAGONALS`) F CHORDS -- SEE SCHEDULE. F A G | TRUSS 34'-0 20'-0 400 HSS 6.625 x 0.375 3 0.625" 2•"
AND SIGN

32'-0 20'-0 400 HSS 6.625 x 0.375 3 0.625" 2•"

30'-0 20'-0 400 HSS 6.625 x 0.375 3 0.625" 2"

-6
3'
SIMILAR TO
DETAIL B
DETAIL C
-0

ALTHOUGH THESE STANDARDS ALLOW FOR A TRUSS MAXIMUM CANTILEVER

Y

1
7'

LENGTH OF 40'-0, THE DESIGNER SHOULD CHECK MATERIAL AVAILABILITY

BEFORE SELECTING A TRUSS LENGTH GREATER THAN 39'-6. HSS 6.625

-6
CHORDS ARE TYPICALLY STOCKED IN 42'-0 LENGTHS. A TRUSS LENGTH OF

3'
40'-0 REQUIRES A TOTAL CHORD LENGTH OF 42'-6.
OF SIGN SUPPORT ANGLES.
ENCIRCLED NOTE 2. ADDED NEW

2 HSS 6.625 x 0.562 MAY BE SUBSTITUTED FOR HSS 6.625 x 0.500 FOR
TRUSS LENGTHS FROM 39'-6 TO 40'-0.
2•"½ STANDARD STEEL
F F F A G
PIPE (`TYP. VERTICALS`)

)
SIGN BOARD

-0`
`
MAX.)
-6

3 HSS 6.625 x 0.432 MAY BE SUBSTITUTED FOR HSS 6.625 x 0.375 FOR

MAX.LENGTH 35'
SLOTTED CHORD DETAIL (TYP)
6'

TRUSS LENGTHS FROM 30'-0 TO 36'-0.

`

6 5 EQUAL SPACES 2'-4 2'-0 6

(

`
1"

STEEL POST (
SIGN TO BOTTOM

30"½ (O.D.) STEEL END POST --

SEE SCHEDULE FOR THICKNESS.
¡REVISED 12-2021:CHANGED DESIGNATION OF ENCIRCLED NOTE 2 TO ENCIRCLED NOTE 3 TO PERMIT INSERTION OF NEW

)
SCHEDULE.
SEE
OF SIGN SUPPORT ANGLES

C
CLEARANCE TO BOTTOM

`
(
)
-0.

`
HIGH POINT OF PAVEMENT BELOW

MIN.
-6 TO 40'

HORIZONTAL LINE
`
-6 (
17'
39'

CAMBER DIAGRAM
500 FOR TRUSS LENGTHS FROM

HIGH POINT OF PAVEMENT BELOW SIGN POST BASE DETAIL

dg n - SCST-02-17 - THIS SHEET ISSUED 07-2017.

DETAIL A

ELEVATION
CLEARANCE IS FROM

2•"½ STANDARD STEEL

PIPE (`TYP.`) DETAIL C

-0
2'
625 x 0.

| TRUSS

-0
4'
SEE STANDARD SHEET SCST-04-17 FOR SECTION A-A.

-0
2'
-6 MINIMUM

SEE STANDARD SHEET SCST-05-17 FOR DETAILS A, B AND C; SECTIONS F-F AND G-G;
562 FOR HSS 6.

AND SLOTTED CHORD DETAIL.

BOTTOM FACE DIAGONAL TOP FACE DIAGONAL

SEE STANDARD SHEET SCST-06-17 FOR POST BASE DETAIL.
6 10 EQUAL SPACES 2'-4 2'-0 6
¡REVISED 04-2020: CLARIFIED THAT 17'

APPROVED BY BRIDGE ENGINEER

PLAN
625 x 0.

LATEST REVISION DATE

¡STEELCANTILEVERSIGNTRUSS.

STANDARD DESIGN

12-2021
INDICATES THE CONNECTION OF INTERIOR
SUBSTITUTION OF HSS 6.

DIAGONALS IN VERTICAL PLANE TO THE STEEL CANTILEVER SIGN TRUSS

TOP CHORD MEMBERS. SEE SECTION F-F.

JULY, 2017

SIGN SUPPORT VIEWS SCST-02-17

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 6

-4
4' 4'
-0

)
LS
CA
ES TI

7'
C R
SP
A VE

-0
L OF
QUA ES
E N
5 LI
ER
ENT
C
AT
D
RE
SU
M EA
(

NOTE: END POST NOT SHOWN FOR CLARITY.

6
dg n - SCST-03-17 - THIS SHEET ISSUED 07-2017.
¡REVISED 03-2018: UPDATED BRIDGE ENGINEER SIGNATURE.
¡REVISED 03-2019: MODIFIED NOTE TO IMPROVE CLARITY.

APPROVED BY BRIDGE ENGINEER

LATEST REVISION DATE
¡STEELCANTILEVERSIGNTRUSS.

STANDARD DESIGN

03-2019
STEEL CANTILEVER SIGN TRUSS
JULY, 2017

ISOMETRIC VIEW
SCST-03-17
TYPICAL TRUSS

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 1" CAP {

•
SPECIFICATIONS. ADDED FASTENERS IN SECTION D-D

B B

•
1" {

-0
7'
| TRUSS

1" {

•
C C

•
1" {
TYP
Š

FOR CHORDS
4'-0
TO 1" {'S

SECTION A-A 4"½ GALVANIZING HOLES

IN BOTTOM 1" {.
2‚ 2‚ HOLES SHALL NOT BE
GALVANIZING HOLES IN PLATE TO IMPROVE CONSTRUCTIBILITY. MODIFIED CALLOUTS TO ADDRESS CHANGE IN ASTM

2 EQ. SPA. 2 EQ. SPA. CLOSER THAN …" TO INSIDE

DIAMETER OF POST.
2‚
3•

•" CLEAR TO EDGE

SLOTTED

OF COLLAR { TYP. CHORD

-4
4

2'
@`

-8
° Š
`

40
SPA.

1'
2‚

TYP
3`

CLIP 1"
4

(`45°`)
@`

D D
2‚

`
SPA.

-8
1" {

8
-0
1'
…
2'
3`

•" {
3•

2‚

2‚
ƒ (`TYP.`)
1Š"½ HOLE FOR
1‚"½ F3125 GRADE 3 6† •

A325 BOLT WITH •" STIFFENER SECTION D-D

dg n - SCST-04-17 - THIS SHEET ISSUED 07-2017.

WASHER AND NUT (`TYP.`) { (`TYP.`)

2-1" {

SECTION B-B

•" CLEAR TO EDGE

SLOTTED

OF COLLAR { TYP. CHORD

5ƒ
¡REVISED 03-2018: UPDATED BRIDGE ENGINEER SIGNATURE.

1" TOP PLATE

-4
4

2'
@`

-8
`
SPA.

1'

TYP
2‚

3
-
1'
3`

Š
=
R
CLIP 1" SEE STANDARD SHEET SCST-02-17 FOR LOCATION OF SECTION A-A.
(`45°`) …
4
@`

E E
AND SECTION E-E TO IMPROVE CLARITY.

2‚

… 1" {
`
SPA.

8
-8

APPROVED BY BRIDGE ENGINEER

Š
-0
1'

2'
3`

LATEST REVISION DATE

5ƒ
¡STEELCANTILEVERSIGNTRUSS.
¡REVISED 03-2019: ADDED 4"½

•" { STANDARD DESIGN

03-2019
ƒ (`TYP.`)
STEEL CANTILEVER SIGN TRUSS
2‚
1" BOTT. { 1Š"½ HOLE FOR
1‚"½ F3125 GRADE JULY, 2017
• 2‚ 7… • A325 BOLT WITH
WASHER AND NUT (`TYP.`)
SECTION E-E
5‚ TRUSS-TO-POST
SCST-04-17
CONNECTION DETAILS
SECTION C-C

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 ¡REVISED 04-2020: LENGTHENED DIMENSIONAL EXTENSION LINE IN DETAILS A AND B TO CLARIFY 2" DISTANCE BETWEEN END OF WEB MEMBERS AND CHORD. ADDED ƒ" DIMENSION TO CLARIFY LOCATION OF

| CHORD | CHORD

4'-0
4'-0
SET SCREWS IN END CAP DETAIL. LENGTHENED DIMENSIONAL EXTENSION LINE IN SLOTTED-PIPE-ENDS DETAIL TO CLARIFY THAT DIMENSIONAL EXTENSION LINE IS TANGENT TO CIRCULAR HOLE.

DETAIL D

2•"½ STANDARD STEEL

PIPE TOP-FACE

2
DIAGONALS

)
.`
Š

•
Y
T

(`
(`
Š

T
Y
•

P
.`
)
…" GUSSET PLATE
4
• .
(` M IN ‰
T IN | DIAGONAL M ) TYP.
Y . • .` 3
P 4 P ‰
.` Y
) T 2•"½ STANDARD
(` MIN.
STEEL PIPE
‰
TYP. INTERIOR
‰ DIAGONALS
…" GUSSET PLATE 2•"½`STANDARD STEEL
(`ALTERNATE PIPE VERTICALS
7° DIRECTION
29.
| STRUT
AT SUCCESSIVE
PANEL POINTS`)
DETAIL A DETAIL B

-0

-0
7'

7'
9 MIN. (`TYP.`)
7°
| CHORD 29.

3"½`STANDARD
DETAIL A,` DETAIL B, `AND DETAIL C STEEL PIPE FRONT
SHOW CONNECTIONS AT TOP CHORDS. AND BACK FACE
CONNECTIONS AT BOTTOM CHORDS DIAGONALS 1"½ HOLE (`TYP.`)

ARE SIMILAR.
1"½ HOLE (`TYP.`)

TRUSS CHORD (`TYP.`)

)
)

DIAGONAL`
STRUT`

TRUSS CHORD (`TYP.`)

Š
`
4• MIN.

2 (
`
TYP.)

`
4 (

2•"½ STANDARD STEEL PIPE BOTTOM

`
(

FACE DIAGONALS (`ALTERNATE DIRECTION

WITH TOP-FACE DIAGONALS`)
…" GUSSET PLATE
‰
TYP. SECTION F-F SECTION G-G
‰
| INTERIOR DIAGONAL OR STRUT
3'-4 10

2 4•
• •
1ˆ " SLOT

TYP. EA.
CHORD CHORD (`MIN. TYP.`)
Š SLOT 1" PLATE
dg n - SCST-05-17 - THIS SHEET ISSUED 07-2017.

DETAIL C
¡REVISED 03-2019: MODIFIED FORMATTING OF CALLOUTS TO IMPROVE CLARITY.

…" GUSSET
PLATE (`TYP.`) INDICATES THE CONNECTION OF INTERIOR
DIAGONALS IN VERTICAL PLANE TO THE

2
| CHORD TOP CHORD MEMBERS. SEE SECTION F-F.

‰ ‰
TYP.
‰

4
1" 1" 2"½ HOLE (TYP) TYP.
Š
¡REVISED 03-2018: UPDATED BRIDGE ENGINEER SIGNATURE.

‰ SLOTTED CHORD DETAIL

7°
TYPICAL AT CHORD-TO-1"-PLATE CONNECTIONS 29.

DRILL AND TAP THREE

‹" SLOT
‚"½ STAINLESS STEEL
DETAIL D SEE STANDARD SHEET SCST-02-17 FOR LOCATIONS OF DETAILS A, B AND

SOCKET HEAD SET SCREWS C AND SECTIONS F-F AND G-G.

GUSSET PLATE 90° APART
1" x 12 GAUGE ƒ
Š

CHORD

APPROVED BY BRIDGE ENGINEER

1"¸ (SQUARE) DRAIN END
MIN.

‰ 3• HOLE (`NOTCH END CAP

VARIES

LATEST REVISION DATE

4•`

AND CHORD`)
6†
Š
¡STEELCANTILEVERSIGNTRUSS.

| CHORD STANDARD DESIGN

{ ‚"`x`6†"½

04-2020
…

PIPE (`STRUTS „
STEEL CANTILEVER SIGN TRUSS
REMOVABLE
AND DIAGONALS`) 1"¸ (SQUARE)
END CAP ‚ 1"
1"½ HOLE JULY, 2017
DRAIN HOLE

SLOTTED PIPE ENDS END CAP DETAIL GUSSET PLATE

TYPICAL FOR ENDS OF CHORDS
SCST-05-17
TYPICAL FOR STRUTS AND DIAGONALS CONNECTION DETAILS

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 )"
A STANDARD-SIZED BACKING ELEMENT. CHANGED "FULL-PENETRATION GROOVE WELD" TO "COMPLETE-JOINT-PENETRATION GROOVE WELD" TO CONFORM
TYP.

3'-3‚
HOLE (

BOLT CIRCLE GALVANIZED STEEL

¡REVISED 04-2020: CHANGED "GALVANIZING VENT HOLE" TO "GALVANIZING HOLE" IN SECTION J-J TO REFLECT HOLE USE AS A GALVANIZING VENT HOLE AND/OR A GALVANIZING DRAIN HOLE. REVISED

HEX NUTS AND WASHERS

3‚"½ HOLE (TYP.)
HOLES" TO "3‚½

THREAD
-4
1'
°
45
9"½ HOLE ‚" TEMPLATE
(`NO GALVANIZING

-6
-9•

7'
REQUIRED`) BOTTOM OF
J

7'
LEVELING NUT
TO AWS NOMENCLATURE. ADDED CALLOUT IN ANCHOR BOLT ASSEMBLY DETAIL TO CLARIFY THAT ANCHOR BOLT HOLES IN ANNULAR PLATES HAVE A 3„" DIAMETER. CHANGED "3‚½

THREAD
3" THICK
3"½ ‚" x 2" BACKING RING IS TO BE CONTINUOUSLY

8
BASE {
ANCHOR BOLT WELDED TO THE BASE PLATE. THE BACKING RING
(`GALVANIZED`) SHALL BE ONE PIECE OR MADE CONTINUOUS BY A
COMPLETE-JOINT-PENETRATION GROOVE WELD. SEAL
WITH LIGHT GRAY NON-SAG URETHANE CAULK
AFTER GALVANIZING.
°
45

3•
CONTINOUS WELD
†" {
TO BASE PLATE
‰
‚ 45°

3'-3‚ B.C. …
1'-10‡ 1'-10‡
1"½ GALVANIZING HOLE.

3'-9ƒ GALVANIZING HOLES SHALL BE LOCATED

IN THE BASE PLATE IF NEEDED. NO HOLE

3
SHALL BE DRILLED THROUGH THE BACKING

45
RING OR POST. NO HOLE IN BASE PLATE
6"
SECTION H-H SHALL BE CLOSER THAN …" TO FILLET WELD.
1-
'4†
R=

SECTION J-J

H H 3„"½ HOLE (TYP.)

RODENT GUARD
`
MAX.)

BOTTOM OF
LEVELING NUT
ANCHOR BOLT ASSEMBLY
1• MAX.

`
4• (

ALL ANCHOR BOLT MATERIALS AND GALVANIZING

SHALL BE IN ACCORDANCE WITH ARTICLE
4187.01, C, 3 OF THE STANDARD SPECIFICATIONS.

TOP OF FOUNDATION WEIGHT OF ONE ANCHOR BOLT ASSEMBLY: 2063 LBS.

(INCLUDES TEMPLATE, EXCLUDES GALVANIZING
SEE FOUNDATION DETAILS WEIGHT)
dg n - SCST-06-17 - THIS SHEET ISSUED 07-2017.

POST BASE DETAIL

SHOWING THE RODENT GUARD

THE RODENT GUARD SHALL BE PLACED AROUND THE

BASE PLATE.

THE RODENT GUARD IS STAINLESS STEEL STANDARD

GRADE WIRE CLOTH, ‚" MAXIMUM OPENING WITH A
SECTION J-J POST-TO-BASE-PLATE WELD SYMBOL TO SHOW

MINIMUM WIRE DIAMETER OF AWG NO. 16 WITH A

MINIMUM 2" LAP. SEE STANDARD SHEET SCST-02-17 FOR LOCATION OF POST BASE DETAIL.

SECURE WIRE CLOTH TO BASE PLATE AFTER ERECTION SEE STANDARD SHEET SCST-08-17 FOR SPREAD FOOTING FOUNDATION DETAILS.
WITH ƒ" STAINLESS STEEL BANDING. THE RODENT
GUARD SHALL NOT EXTEND ABOVE THE TOP OF THE SEE STANDARD SHEET SCST-09-17 FOR DRILLED SHAFT FOUNDATION DETAILS.
BASE PLATE.

APPROVED BY BRIDGE ENGINEER

IN SECTION H-H FOR UNIFORMITY.

LATEST REVISION DATE

¡STEELCANTILEVERSIGNTRUSS.

STANDARD DESIGN

04-2020
STEEL CANTILEVER SIGN TRUSS
JULY, 2017

POST BASE SUPPORT DETAILS SCST-06-17

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 U-BOLT SIZE.
SECTION K-K,AND SECTION L-L. ADDED ADDITIONAL DETAIL TO SECTION L-L AND MODIFIED CALLOUTS TO CLARIFY THAT DIRECTION OF ANGLE LEG IS TO ALTERNATE AT SUCCESSIVE SUPPORTS FOR BOTH
-6 AS A MATING ANGLE FOR CLARITY IN PART SIGN TRUSS PLAN,

SIGN SUPPORT ANGLES AND MATING ANGLES. MOVED SECTION K-K CUT LINE IN PART SIGN TRUSS PLAN TO ACCURATLY REFLECT LOCATION OF SECTION K-K. MODIFIED DEPICTION OF MATING ANGLES IN

T
THAT DIRECTION OF ANGLE LEG ALTERNATES AT SUCCESSIVE SUPPORTS. REVISED DEPICTION OF U-BOLT IN SECTION F-F TO ACCURATELY SHOW

L
O
ƒ

B
3
=
R

|
O
T
| TRUSS

ƒ"½ U-BOLT

3
MATING ANGLE
(`RIGHT ORIENTATION SHOWN`).
SIGN PANEL ALTERNATE DIRECTION WASHER
K OF ANGLE LEG AT
1 1 1 1 NUT
SUCCESSIVE SUPPORT
2'-6 5'-0 5'-0 2'-6
7•
LOCATIONS. JAM NUT
MAX. MAX. SPACING MAX. SPACING MAX.

SIGN SUPPORT ANGLE

PART SIGN TRUSS PLAN (`RIGHT ORIENTATION SHOWN`). U-BOLT DETAIL
ALTERNATE DIRECTION
OF ANGLE LEG AT
SUCCESSIVE SUPPORT
SIGN SUPPORT ANGLE ***
1'

1"

LOCATIONS.
…`
x` x`

FLIPPED ORIENTATION OF TOP-CHORD-TO-MATING-ANGLE U-BOLT CONNECTION FOR UNIFORMITY WITH DETAIL ON SOST-11 STANDARDS.
3`
x`

-7 MAX.
5" MIN.
3`
¡REVISED 04-2020: CHANGED "OFFICE OF BRIDGES AND STRUCTURES" TO "BRIDGES AND STRUCTURES BUREAU". DESIGNATED L`

10‚ 10‚
6'

2ƒ 7• 8ƒ 2ƒ 7• 8ƒ

ƒ"½ U-BOLT
Ž"½` HOLE OR

1ƒ Ž" x 1ƒ" SLOT 1ƒ

L`3`x`3`x`… x 1'-6 L`3`x`3`x`… x 1'-6
MATING ANGLE IN L`3 x`3 x`… MATING ANGLE
3
SIGN SUPPORT

1ƒ
ANGLE
)
-10 MINIMUM`

1ƒ
L`3`x`3`x`…`x`1'-6
MATING ANGLE 3
SIGN SUPPORT
ANGLE
ƒ"½ A449 GALVANIZED ƒ"½ U-BOLT
CHORDS

BOLT WITH WASHER,

NUT AND JAM NUT 7• 7•
7'

ƒ"½ A449 GALVANIZED

`

BOLT WITH WASHER,

SIGN HEIGHT + 2" (

NUT AND JAM NUT

-0 | -|

Ž"½` HOLE OR Ž" x 1ƒ" SLOT (`LEFT ORIENTATION`) (`RIGHT ORIENTATION`)

2 IN L`3 x`3 x`…
dg n - SCST-07-17 - THIS SHEET ISSUED 07-2017.

SIGN PANEL
SECTION L-L
7'

ƒ"½ U-BOLT
ALTERNATE DIRECTION OF SIGN SUPPORT
ANGLE LEG AND MATING ANGLE LEG AT
SUCCESSIVE SUPPORTS AS SHOWN IN
PART SIGN TRUSS PLAN.

L L
1ƒ

-7 MAX.
5" MIN.
PART SIGN TRUSS PLAN TO ACCURATELY SHOW

6'
1"

1 DIMENSION RESTRICTIONS APPLY TO MAIN SIGN PANEL AND

ANY SUPPLEMENTAL SIGN PANELS THAT MAY BE PRESENT.
POINT ON PAVEMENT
CLEARANCE TO HIGH

2 CENTER THE MAIN SIGN PANEL VERTICALLY ON THE TRUSS

APPROVED BY BRIDGE ENGINEER

IF THE SUPPLEMENTARY SIGN PANEL LENGTH IS LESS THAN
-6 MIN.

2ƒ 7• 4'-0 |-| CHORDS HALF THE LENGTH OF THE MAIN SIGN PANEL, OTHERWISE CENTER

LATEST REVISION DATE

THE COMBINED HEIGHT OF THE MAIN SIGN PANEL AND
¡STEELCANTILEVERSIGNTRUSS.

SUPPLEMENTARY SIGN PANEL VERTICALLY ON THE TRUSS. STANDARD DESIGN

17'

04-2020
3 USE L`6`x`3•`x`• FOR SIGN HEIGHT OVER 10'-0 TO 20'-0 AND
L`5`x`3`x`… FOR SIGN HEIGHT OF 10'-0 OR LESS. A TOTAL SIGN
STEEL CANTILEVER SIGN TRUSS
HEIGHT GREATER THAN 20'-0, SIGN VERTICAL CANTILEVER LENGTH
GREATER THAN 6'-7, AND/OR SIGN SUPPORT ANGLE HORIZONTAL JULY, 2017

SPACING GREATER THAN 5'-0 REQUIRES APPROVAL BY THE

BRIDGES AND STRUCTURES BUREAU.
SECTION K-K
SIGN ATTACHMENT DETAILS SCST-07-17

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 5'-0 5'-0 5'-0
EPOXY COATED REINFORCING BAR LIST
"ANCHOR BOLT ASSEMBLY--FURNISH" AND "ANCHOR BOLT ASSEMBLY--INSTALL AND SURVEY")TO CLARIFY CONTRACTOR RESPONSIBILITY TO ACCURATELY

BAR LOCATION SHAPE NO. LENGTH WEIGHT

-3
3'-3‚

1'
3
8a1 FOOTING BOTT., LONGIT. 20 19'-8 1050
BOLT CIRCLE 6a2 FOOTING BOTT., TRANSV. 31 14'-8 683
6c1 10b1
8a3 FOOTING TOP, LONGIT. 20 19'-8 1050
6c2 6c2
6a4 FOOTING TOP, TRANSV. 31 14'-8 683

40-6c2 BARS

-0;

9 EQ.SPA.- 10b1
6c2
-0;

6'
10b1 FOOTING TO PEDESTAL DOWEL 36 13'-3 2053

28-6c3 BARS
=`
| TRUSS ANCHOR BOLT
-0 = 9'

-0`
ASSEMBLY

6-3

-0
6c1 PEDESTAL TIES 10 19'-8 295

1'

5'
6c2 PEDESTAL TIES 40 4'-4 260

@`
M M

-6
`
9 SPA.@ 1'

6c3 PEDESTAL TIES 28 6'-7 277

6 SPA.

9'
10-6c1 BARS &

6c3
EPOXY COATED REINFORCING STEEL - TOTAL (`LBS.`) 6351
6c1

BENT BAR DETAILS

4'-8

6c2

6c3
3 CL.
6a2 TOP VIEW

6
8a3 9 EQ. SPA. - 10b1
6a4
10b1

-2

-3
5'-0 D=4• D=4•

11'

1'
3

-3

6
D=10‚

2'

-8
8 3'-1
SECTION M-M 6c2

4'
4-6c3 BARS ARE TO BE PLACED WITH D=4• 2'-1 4'-8 6c3

3 CL.
8a1 EVERY LAYER OF 6c1 BARS IN THE TOP
6'-3 OF THE PEDESTAL.
ELEVATION 6c1
6c1 10b1 6c2 & 6c3
NOTE: ALL DIMENSIONS ARE OUT TO OUT. D = PIN DIAMETER.

4• 19 SPA. @ 9 = 14'-3; 20-8a3 4•

GENERAL NOTES:
CONCRETE PLACEMENT

6
STRUCTURAL CONCRETE, CLASS C, SHALL BE USED FOR THE FOUNDATION.

QUANTITIES ALL EXPOSED CORNERS 90° OR SHARPER SHALL BE FILLETED WITH A ƒ" DRESSED

PEDESTAL 8.8 AND BEVELED STRIP.

FOOTING 25.0
8a3 6a4 EXCAVATION FOR THE FOUNDATION SHALL BE TO NEAT LINES AND CONCRETE
TOTAL - C.Y. 33.8
SHALL BE PLACED AGAINST THE UNDISTURBED MATERIAL. ALL EXCAVATION FOR
THE FOUNDATION SHALL BE DISPOSED IN THE AREA ADJACENT TO THE
FOUNDATION AND SHAPED TO NORMAL GROUND CONTOUR, UNLESS OTHERWISE

)
-`
-6

-0;31-6a4
DIRECTED BY THE ENGINEER.

`
7'

30 SPA.@ 7†(
ONE ANCHOR BOLT ASSEMBLY INCLUDING ANCHOR PLATE, TEMPLATE, NUTS (5 PER
-0

TOP REINF.
10'

BOLT) AND WASHERS (2 PER BOLT) ARE REQUIRED PER FOUNDATION.

STEEL

= 19'
ALL ANCHOR BOLT MATERIALS AND GALVANIZING SHALL BE IN ACCORDANCE WITH
DISTANCE SHOWN ELSEWHERE IN PLANS THE REQUIREMENTS OF ARTICLE 4187.01, C, 3 OF THE STANDARD SPECIFICATIONS.
16`x 16 x 2
BEVELED KEYWAY
THE FOUNDATION DETAILS SHOWN ARE BASED ON A NET ALLOWABLE SOIL BEARING
EDGE OF SLAB | POST
PRESSURE (FOR SETTLEMENT) OF 1.0 TON/FT².
TOP-OF-PEDESTAL ELEVATION IS
TO BE SET AT SAME ELEVATION
-6

PRICE BID FOR CONTRACT ITEMS SHALL INCLUDE ALL LABOR AND MATERIALS
dg n - SCST-08-17 - THIS SHEET ISSUED 07-2017.
INSTALL ANCHOR BOLT ASSEMBLY. REORDERED NOTES TO IMPROVE READABILITY.

2'

AS HIGH POINT ON ROADWAY OR

NECESSARY TO CONSTRUCT CANTILEVER SIGN TRUSS FOUNDATION AS DETAILED
AS DIRECTED BY THE ENGINEER.
TRAFFIC

HEREON. THE COST OF FURNISHING AND INSTALLING RODENT GUARD SHALL BE

-0
20'

| TRUSS INCLUDED IN THE PRICE BID FOR "STRUCTURAL CONCRETE (MISCELLANEOUS)" AND
NO SEPARATE PAYMENT WILL BE MADE. THE COST OF FURNISHING ANCHOR BOLT
ASSEMBLY SHALL BE INCLUDED IN THE PRICE BID FOR "ANCHOR BOLT
-6
2'

ASSEMBLY--FURNISH". (NOTE THAT THIS IS A SPECIAL BID ITEM.) THE COST OF

ACCURATELY INSTALLING AND SURVEYING ANCHOR BOLT ASSEMBLY SHALL BE
INCLUDED IN THE PRICE BID FOR "ANCHOR BOLT ASSEMBLY--INSTALL AND

6" MIN.
SURVEY". (NOTE THAT THIS IS A SPECIAL BID ITEM.) SEE STRUCTURAL
¡REVISED 03-2018: UPDATED BRIDGE ENGINEER SIGNATURE.

ALIGNMENT/TOLERANCE NOTES ON SHEET SCST-01-17 FOR ANCHOR BOLT ASSEMBLY

)
-`

ALIGNMENT DOCUMENTATION REQUIREMENTS. CONTRACT ITEMS FOR OVERHEAD SIGN

-0;31-6a2
`
30 SPA.@ 7†(

TRUSS FOUNDATION CONSTRUCTION ARE:

¡REVISED 03-2019:ADDED TWO SPECIAL BID ITEMS (

REINFORCING STEEL, EPOXY COATED - POUNDS

-0

BOTTOM REINF.
10'

STRUCTURAL CONCRETE (MISCELLANEOUS) - CUBIC YARDS

EXCAVATION - CUBIC YARDS OF CLASS SPECIFIED
STEEL
= 19'

ANCHOR BOLT ASSEMBLY--FURNISH (SPECIAL BID ITEM) - POUNDS

-6
7'

ANCHOR BOLT ASSEMBLY--INSTALL AND SURVEY (SPECIAL BID ITEM) - EACH

-0 MIN.

APPROVED BY BRIDGE ENGINEER

LATEST REVISION DATE
8a1 6a2

4'
¡STEELCANTILEVERSIGNTRUSS.

STANDARD DESIGN

03-2019
STEEL CANTILEVER SIGN TRUSS
6

4• 19 SPA. @ 9 = 14'-3; 20-8a1 4•

JULY, 2017

7'-6 7'-6

15'-0
ELEVATION - TOP OF PEDESTAL FOUNDATION DETAILS -
SCST-08-17
AND BACKFILL SPREAD FOOTING
FOOTING PLAN

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 DRILLED SHAFT QUANTITIES REINFORCING BAR LIST - EPOXY COATED BENT BAR DETAILS
ASSEMBLY--INSTALL AND SURVEY")TO CLARIFY CONTRACTOR RESPONSIBILITY TO ACCURATELY INSTALL ANCHOR BOLT ASSEMBLY. REORDERED NOTES TO IMPROVE READABILITY. MODIFIED ALTERNATE 6c1

TRUSS LENGTH SHAFT LENGTH "L" EPOXY COATED REBAR STRUCTURAL CONCRETE ONE FOUNDATION
4'-6

8
30 FT. 24 FT. 4531 LBS. 17.45 C.Y.
"ANCHOR BOLT ASSEMBLY--FURNISH" AND "ANCHOR BOLT

TABULATED VALUE FOR L = 24'-0 EACH ADDITIONAL 1'-0 OF L

32 FT. 25 FT. 4701 LBS. 18.18 C.Y. BAR LOCATION SHAPE
34 FT. 27 FT. 5041 LBS. 19.63 C.Y. NO. LENGTH WEIGHT NO. LENGTH WEIGHT

-11
36 FT. 29 FT. 5381 LBS. 21.09 C.Y. D=4•
10b1 SHAFT VERTICAL 32 23'-3 3201 32 1'-0 138

-6

2'
38 FT. 31 FT. 5721 LBS. 22.54 C.Y.

4'
40 FT. 33 FT. 6061 LBS. 24.00 C.Y.
D=4•

8
6c1 SHAFT CIRCULAR TIES (`ALTERNATE`) 32 18'-1 0 1.33 18'-1 0

8
6c2 SHAFT TIES 72 4'-10 522 0 4'-10 0
HOOK=135° 1'-3
CSL PIPE
D=4• (TYP)
1'-9
#6 SHAFT SPIRAL 1 487'-11 733 1 19'-2 29 MIN LAP
32-10b1 VERTICAL BARS
SPIRAL SPACER L 1" x 1" x „ 4 23'-3 75 4 1'-0 3 6c1 6c2
TOTAL 4531 LBS. TOTAL 170 LBS. (`ALTERNATE TIE`)
#6 SPIRAL AT 9" PITCH NOTE: ALL DIMENSIONS ARE OUT TO OUT. D = PIN DIAMETER.
6c2 TIES AT 9" IN
OR 6c1 AT 9" CIRCULAR TIES
TOP 6'-3 OF SHAFT
WITH 135 STANDARD

GENERAL NOTES:
STRUCTURAL CONCRETE, CLASS C, SHALL BE USED FOR THE DRILLED SHAFT.

DISTANCE SHOWN ELSEWHERE IN PLANS

ALL EXPOSED CORNERS 90° OR SHARPER SHALL BE FILLETED WITH A ƒ" DRESSED AND

3 CL. BEVELED STRIP.

TOP-OF-SHAFT ELEVATION IS TO
EDGE OF SLAB | POST BE SET AT SAME ELEVATION AS
SPIRAL REINFORCING IS TO BE NO. 6 BAR WITH A 4'-6 OUTSIDE DIAMETER AND
HIGH POINT ON ROADWAY OR AS
LIST INCLUDES TWO SPECIAL BID ITEMS (

9" PITCH WITH 4 EQUALLY SPACED L 1" x 1" x „ SPACERS PUNCHED TO HOLD SPIRALS.
60"½ SHAFT DIRECTED BY THE ENGINEER.
SPIRALS ARE TO HAVE 1• EXTRA TURNS AT TOP AND BOTTOM OF SHAFT.

THE SPIRAL REINFORCING MAY BE SPLICED BY LAPPING 3'-1. THE LENGTH OF THE
SECTION N-N
SPIRAL SHOWN DOES NOT INCLUDE THE LAPPED LENGTH OF THE SPLICES. THE COST

MAX.
8`- 6c2 TIES ARE TO BE PLACED WITH EVERY OF THE LAPS AT SPLICES IS TO BE INCLUDED IN THE PRICE BID FOR OTHER

-0
REINFORCEMENT.

2'
LAYER OF #6 SPIRAL/6c1 CIRCULAR TIES IN
THE TOP 6'-3 OF THE SHAFT

6" MIN.
CIRCULAR TIES MAY BE SUBSTITUTED FOR THE SPIRAL REINFORCEMENT. PAYMENT WILL

3'-3‚ BE BASED ON THE WEIGHT OF SPIRAL REINFORCEMENT. NO ADJUSTMENTS IN REINFORCING

STEEL PAY WEIGHT WILL BE ALLOWED. SEE BENT BAR DETAILS FOR ALTERNATE TIE
BOLT CIRCLE
CONFIGURATION.

L
ALL REINFORCING IS TO BE SECURELY WIRED IN PLACE BEFORE CONCRETE IS POURED.

ONE ANCHOR BOLT ASSEMBLY INCLUDING ANCHOR PLATE, TEMPLATE, NUTS (5 PER BOLT)
AND WASHERS (2 PER BOLT) ARE REQUIRED PER FOUNDATION.
| TRUSS ANCHOR BOLT
ASSEMBLY
ALL ANCHOR BOLT MATERIALS AND GALVANIZING SHALL BE IN ACCORDANCE WITH THE
REQUIREMENTS OF ARTICLE 4187.01, C, 3 OF THE STANDARD SPECIFICATIONS.
BID ITEM

THE FOUNDATION DETAILS SHOWN ARE BASED ON COMMON COHESIVE SOIL CONDITIONS
(`SILTY OR SANDY CLAY`) WITH AN AVERAGE UNCONFINED COMPRESSIVE STRENGTH (q )
u
OF AT LEAST 1.25 TON/FT², WHICH MUST BE DETERMINED BY PREVIOUS SOIL

ELEVATION - TOP OF SHAFT

NOTE TO IMPROVE CLARITY. NEW

INVESTIGATIONS AT THE JOBSITE. WHEN OTHER CONDITIONS ARE INDICATED, THE BORING
DATA WILL BE INCLUDED IN THE PLANS AND THE FOUNDATION EMBEDMENT WILL BE THE

TOP VIEW AND BACKFILL RESULT OF SITE SPECIFIC DESIGNS.

dg n - SCST-09-17 - THIS SHEET ISSUED 07-2017.

IF THE CONDITIONS ENCOUNTERED ARE DIFFERENT THAN THOSE INDICATED, THE

CONTRACTOR SHALL NOTIFY THE ENGINEER TO DETERMINE IF THE FOUNDATION

2"½ ASTM A53 PIPE EMBEDMENT NEEDS TO BE MODIFIED. IF THE EMBEDMENT IS REVISED BY MORE THAN
5'-0 GENERAL NOTES (CONTINUED) : 12" BY THE CONTRACTOR, "AS-BUILT" PLANS SHALL BE PREPARED AND SUBMITTED
FOR CROSSHOLE SONIC
LOG (CSL) TESTING TO THE IOWA DOT FOR FUTURE REFERENCE.
DRILLED SHAFT SHALL HAVE CROSSHOLE SONIC LOGGING (`CSL`) PIPES AS SHOWN.
( 5 TOTAL EACH SHAFT )
CSL PIPES SHALL BE PLACED IN A PATTERN SO THAT EACH PIPE IS SPACED
-3

DESIGN EMBEDMENT LENGTHS LISTED IN THE SHAFT EMBEDMENT TABLE ARE BASED
1'
3

THE MAXIMUM DISTANCE POSSIBLE FROM ADJACENT PIPES. ON A SOIL UNDRAINED COHESION OF 0.625 TON/FT², A SOIL EFFECTIVE UNIT
WEIGHT OF 57.6 LB/FT³, AND A SOIL STRAIN FACTOR (E50) OF 0.007.
¡REVISED 03-2018: UPDATED BRIDGE ENGINEER SIGNATURE.

A NORMAL SURFACE FINISH FOLLOWED BY A CONCRETE SEALER APPLICATION IS

#6 SPIRAL REQUIRED ON CONCRETE SURFACES ABOVE THE LOWEST ELEVATION 6" BELOW EXCAVATIONS SHALL BE DEWATERED BEFORE CONCRETE PLACEMENT AT NO ADDITIONAL
(`TYP.`) FINISHED GROUND LINE.
¡REVISED 03-2019:ADDED NOTES INCLUDING BID ITEM

COST TO THE STATE.

6c2*
-0;

72-6c2 TIES
6'

PRICE BID FOR CONTRACT ITEMS SHALL INCLUDE ALL LABOR AND MATERIALS NECESSARY CONCRETE SHALL BE PLACED MONOLITHICALLY WITHOUT CONSTRUCTION JOINTS.
HOOKS.

=`

TO CONSTRUCT CANTILEVER SIGN TRUSS FOUNDATION AS DETAILED HEREON. THE COST OF

-3
9`

FURNISHING AND INSTALLING RODENT GUARD SHALL BE INCLUDED IN THE PRICE BID FOR
6'

L = VARIES
@`

N "STRUCTURAL CONCRETE (MISCELLANEOUS)" AND NO SEPARATE PAYMENT WILL BE MADE. THE

`

N
8 SPA.

COST OF FURNISHING ANCHOR BOLT ASSEMBLY SHALL BE INCLUDED IN THE PRICE BID FOR
SHAFT CIRCULAR TIES TO INCLUDE 135°

"ANCHOR BOLT ASSEMBLY--FURNISH". (NOTE THAT THIS IS A SPECIAL BID ITEM.) THE

APPROVED BY BRIDGE ENGINEER

COST OF ACCURATELY INSTALLING AND SURVEYING ANCHOR BOLT ASSEMBLY SHALL BE
INCLUDED IN THE PRICE BID FOR "ANCHOR BOLT ASSEMBLY--INSTALL AND SURVEY". (NOTE

LATEST REVISION DATE

9 PITCH FOR

THAT THIS IS A SPECIAL BID ITEM.) SEE STRUCTURAL ALIGNMENT/ TOLERANCE NOTES ON
# 6 SPIRAL
¡STEELCANTILEVERSIGNTRUSS.

SHEET SCST-01-17 FOR ANCHOR BOLT ASSEMBLY ALIGNMENT DOCUMENTATION STANDARD DESIGN

REQUIREMENTS. CONTRACT ITEMS FOR CANTILEVER SIGN TRUSS FOUNDATION

03-2019
CONSTRUCTION ARE:
10b1 REINFORCING STEEL, EPOXY COATED - POUNDS
STEEL CANTILEVER SIGN TRUSS
REINFORCING STEEL - POUNDS
JULY, 2017
STRUCTURAL CONCRETE (MISCELLANEOUS) - CUBIC YARDS
6

CONCRETE DRILLED SHAFT, 30 IN. DIAMETER - LINEAR FEET

CLASS 20 EXCAVATION - CUBIC YARDS
ELEVATION ANCHOR BOLT ASSEMBLY--FURNISH (SPECIAL BID ITEM) - POUNDS
FOUNDATION DETAILS -
SCST-09-17
* NOT ALL 6c2 TIES ARE SHOWN
ANCHOR BOLT ASSEMBLY--INSTALL AND SURVEY (SPECIAL BID ITEM) - EACH DRILLED SHAFT

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