07_-_CTDOT_TRAFFIC_STD_Individual.pdf

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Attached to
B027-23 Oregon Road Bridge Replacement
Solicitation number
State Project No. L079-0004-Oregon Road Bridge No. 04184
Issued by
New Haven County, Connecticut

About this file

This file comprises Connecticut Department of Transportation (CTDOT) standard sheets for traffic control signal installation and maintenance, specifically sheet index TR-STD_INDEX and related technical specifications including general clauses, test procedures, trenching and backfilling requirements, pedestrian signal pedestals, pedestrian push buttons, and sign placement and mounting details. The document establishes standardized construction and installation protocols for traffic control infrastructure in Connecticut, including specifications for inductive loop detectors, ground resistance testing, conduit installation, signal equipment placement, and signage. The standard sheets are referenced as part of project specifications and are applicable to various traffic control projects throughout the state, with multiple sheets revised or updated as recently as February 2024 (sheet TR-1001_01) and August 2018 (sheet TR-1208_01). While no specific project quantities, response dates, or contract award information is provided in these technical standard sheets, they establish the technical requirements and testing procedures that contractors must follow when performing traffic control signal work on CTDOT projects.

The standard sheets contain no information regarding pricing terms, set-asides, incumbent contractors, or specific funding sources. These documents function as reference materials for contractors bidding on and executing traffic control projects in Connecticut, outlining testing procedures such as megohmmeter insulation resistance testing (minimum 600 volts with resistance greater than 100 megohms required), wire resistance measurement (maximum 4 ohms acceptable), ground resistance testing using the fall-of-potential method (maximum 10 ohms), and installation specifications for conduit, pedestrian signals, push buttons, and sign supports. The sheets reference compliance with applicable standards including the National Electrical Code (NEC) Article 250, National Electrical Safety Code (NESC) Section 09, AASHTO crash test requirements, and ADA standards for accessible design, ensuring that all traffic control infrastructure meets current safety and accessibility requirements.

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SHEET NO. TITLE SHEET NO. TITLE

STANDARD SHEETS SHALL BE USED WITH STANDARD SPECIFICATIONS

DATE**

APPROVAL

DATE**

APPROVAL

ONLY STANDARD SHEETS MARKED WITH AN " " ARE IN THIS PROJECT #

8/2018SIGN PLACEMENT AND RETROREFLECTIVE STRIP DETAILSTR-1208_01

6/2017METAL SIGN POSTS AND SIGN MOUNTING DETAILSTR-1208_022/2024TRENCHING & BACKFILLING, ELECTRICAL CONDUIT TR-1001_01

2/2024CONCRETE HANDHOLE TR-1010_01

4/2012PEDESTALS, PEDESTRIAN SIGNALS TR-1102_01

8/2018TRAFFIC SIGNALS AND CABLE ASSIGNMENTS TR-1105_01

8/2018PEDESTRIAN PUSH BUTTON TR-1107_01

5/2013CONTROLLERS TR-1108_01

4/2014LOOP VEHICLE DETECTOR AND SAWCUT TR-1111_01

8/2018BONDING & UTILITY POLE ATTACHMENT DETAILS, SIGN HANGER, "Y" CLAMP DETAILS TR-1114_01

4/2014CONTROL CABLE TR-1113_01

1/2014GENERAL CLAUSES (TEST PROCEDURES) TR-1000_01

2/2024TRAFFIC CONTROL FOUNDATIONS TR-1002_01

STANDARD SHEET TITLE: STANDARD SHEET NO.:

C

ONNECTICU

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O F TRAN

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P O

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O N

STATE OF CONNECTICUT

TRANSPORTATION

OF

DEPARTMENT

SIGNATURE BLOCK:

TRAFFIC STANDARD SHEET INDEX

TR-STD_INDEX

NOT TO SCALE

STANDARD SHEET

CTDOT

SUBMITTED BY: APPOVED BY:

OR ADDED

**REVISED

L079-0004

LEGEND AS SHOWN ON TRAFFIC CONTROL SIGNAL PLAN:

HANDHOLE

RIGID METAL CONDUIT

SAW CUT

INDUCTIVE LOOP DETECTOR

FUNCTIONCOLORPIN

OHMETER

CA

LEAD-IN

MEGOHMETER

CA

LEAD-IN

D6B

D6A

D5

D4B REAR

D4A FRONT

D2B

D2A

D1 REAR

D1 FRONT

TOWN: LOCATION:

PROJECT:

DOCUMENT ALL LOOP DETECTOR VALUES BOTH CALCULATED AND MEASURED.

WHERE:

14/2

LOOP

14/2

LOOP

14/2

T

1 2 3

LOOP

LOOP

LOOP

14/2

14/2

14/2

R E S I S

T A

N C

E o h m s

R = E / I

VOLTAGE

SOURCE

AMMETER (I)

VOLTMETER (E)

V

(3000) (6000) (9000) (12000) (15000)

DISTANCE

10' 20' 30' 40' 50' (D)

LOOP

R R RR

TEST 1a

TEST 1b

INDUCTIVE LOOP TEST PROCEDURE

3 POINT FALL-OF-POTENTIAL GROUND RESISTANCE TEST

DETECTOR AMPLIFIER PIN DESIGNATION

DEFINITIONS:

1: RESISTANCE:

2: LOOP CIRCUIT INDUCTANCE:

LOOP INDUCTANCE (ENGLISH) LOOP INDUCTANCE (METRIC)

LEAD-IN INDUCTANCE LEAD-IN INDUCTANCE

L = (P/4) (N + N) L = (3.28P/4) (N + N)

L = (0.24 /FT) (D) L = (0.78 /m) (D)

2a: CALCULATE INDUCTANCE OF LOOP (L ) AND LEAD-IN CABLE (L ).

LOOP

14/2

T

T

L = 120

L = (6) (20)

L = (24/4) (4 + 4)

6' x 6', 4 TURNS, APPROXIMATELY 300' FROM THE CONTROLLER

EXAMPLE: (IN ENGLISH)

L , L , L = INDUCTANCE OF INDIVIDUAL LOOP SEGMENTS.

L = TOTAL INDUCTANCE OF THE SEGMENTED ARRANGEMENT.

WHERE:

L = 72

L = (0.24) (300)

L = (0.24 /FT) (300)

INSTRUMENT DESIGNED TO MEASURE LOOP CIRCUIT INDUCTANCE.

2b: MEASURE INDUCTANCE OF LOOP AND LEAD-IN AT CONTROLLER. USE

NUMBER

LOOP

INTERRUPTION

POWER

AMPLIFIER

(1a)

TO GROUND

(1b)

LOOP WIRE

(2a)

CALCULATED

(2b)

MEASURED

(3)

PASS/FAIL

(EXAMPLE)

LOOP CIRCUIT TEST DATA

TEST CIRCUIT

3 POINT GROUND RESISTANCE

(EXAMPLE)

GROUND RESISTANCE CHART

ROD (X)

GROUND

ELECTRODE (P)

POTENTIAL

ELECTRODE (C)

CURRENT

(3000)

10'

(6000)

20'

(9000)

30'

(12000)

40'

(15000)

50' (D)

GREY

GREEN

BLUE

YELLOW

ORANGE

RED

BLACK

BROWN

WHITE

Shell

J

H

G

F

E

D

C

B

A

Ground (shall be connected to pin H in the connector)

110 VAC Delay/Extend Override

Chassis Ground

Output Relay Contact (Opens with moving contact when detecting vehicle)

Output Relay Contact (Closes with moving contact when detecting vehicle)

Loop

Loop

110 VAC (Fused)

Output Relay Common (moving contact)

110 VAC Neutral

OHMS

RESISTANCE

MICROHENRIES ( )

INDUCTANCE

BY EXOTHERMIC WELDING TECHNIQUE.

GRID CONNECTIONS AND BONDS ON GROUND GRID SHALL BE MADE BY CLAMPS DESIGNED FOR DIRECT BURIAL OR

MINIMUM DEPTH OF 18" (450).

REFER TO NEC SECTION 250.

REFER TO NESC SECTION 09, RULE 94.B.3.

OR PLATES.

B. IN AREAS OF SHALLOW BEDROCK, INSTALL A GROUND GRID OR ARRAY CONSISTING OF BURIED WIRE, RODS, STRIPS

TOP OF ADDITIONAL GROUND ROD(S) SHALL BE 6" (150) BELOW GRADE.

WELDING TECHNIQUE.

BONDS TO ADDITIONAL GROUND ROD(S) SHALL BE MADE BY A CLAMP DESIGN FOR DIRECT BURIAL OR BY EXOTHERMIC

MINIMUM 6' (1800) APART.

DRIVE ADDITIONAL GROUND RODS NO CLOSER TO FOUNDATION THAN 6' (1800). IF MORE THAN ONE IS NEEDED, SPACE

REFER TO NESC SECTION 09, RULE 94.B.2.

A. INSTALL ADDITIONAL 10' (3000) GROUND ROD(S).

SUGGESTED CORRECTIVE ACTION:

- IF GROUND RESISTANCE IS GREATER THAN 10 OHMS, PERFORM CORRECTIVE ACTION AND RE-TEST.

SEE EXAMPLE CHART: CURVE FLATTENS OUT AT 10 OHMS, APPROXIMATELY 30' (9000) FROM FOUNDATION.

- THE ACTUAL GROUND RESISTANCE IS WHERE THE PLOTTED CURVE IS RELATIVELY FLAT, USUALLY AT 62%| OF D.

- PLOT THE VALUES ON A RxD GROUND RESISTANCE CHART.

- CALCULATE RESISTANCE (R) AT EACH LOCATION OF P USING THE FORMULA R=E/I.

- MEASURE VOLTAGE (E) AT EACH LOCATION OF P.

- INSERT POTENTIAL ELECTRODE (P) AT 5' (1500) INTERVALS IN A STRAIGHT LINE TO ELECTRODE C.

- MEASURE THE CURRENT FLOW (I) BETWEEN X AND C.

- CONNECT A VOLTAGE SOURCE AND AMMETER BETWEEN THE FOUNDATION GROUND ROD (X) AND C.

- INSERT ELECTRODE (C) A DISTANCE (D) FROM THE FOUNDATION. RECOMMEND A MINIMUM 50'.

TEST PROCEDURE:

NOTES:

AS A SPECIALIZED TEST INSTRUMENT.

AND COMMUNCATIONS FACILITIES.

LOOP: #14 AWG WIRE IN SAWCUT, TERMINATED IN HANDHOLE, IMSA SPEC 51-7.

LEAD-IN: 14/2 SHIELDED TWISTED PAIR CABLE FROM HANDHOLE TO CONTROLLER, IMSA SPEC 50-2.

LOOP CIRCUIT: LOOP SAWCUT WIRE SPLICED TO 14/2 LEAD-IN CABLE.

AMPLIFIER: ELECTRONIC DEVICE CONNECTED TO LOOP CIRCUIT. SENSES CHANGE IN RESONANT

FREQUENCY AND CREATES AN OUTPUT TO THE CONTROLLER.

MEGOHMETER: INSTRUMENT SPECIFICALLY DESIGNED TO TEST THE INSULATION RESISTANCE OF A

CIRCUIT. COMMON MANUFACTURERS: AMEC , AMPROBE , FLUKE , MEGGER .

1a: INSULATION RESISTANCE: PERFORM A 600 VOLT (MINIMUM) MEGOHMETER TEST ON LOOP CIRCUIT. THE

LOOP AMPLIFIER MUST BE DISCONNECTED FROM THE LOOP CIRCUIT OR THE LOOP AMPLIFIER WILL BE

DAMAGED. THE RESISTANCE OF THE LOOP WIRE TO GROUND MUST BE GREATER THAN 100 MEG OHMS.

1b: WIRE RESISTANCE: MEASURE THE DC RESISTANCE OF THE LOOP CIRCUIT. THE LOOP CIRCUIT MUST BE

DISCONNECTED FROM THE AMPLIFIER. USING AN OHMMETER CONNECTED ACROSS THE LOOP CIRCUIT, MEASURE THE DC RESISTANCE OF THE CONDUCTORS. THE RESISTANCE SHOULD BE LESS THAN 4 OHMS.

NOTE: ALL TESTS SHALL BE DONE AT THE CONTROLLER ASSEMBLY (CA), HOWEVER IT IS RECOMMENDED TO

PERFORM A PRELIMINARY MEGOHMETER TEST AT THE HANDHOLE PRIOR TO SEALING THE SAWCUT AND

SPLICING TO THE LEAD-IN. IF A DEFECTIVE LOOP WIRE IS FOUND, IT MAY BE EASILY REPLACED.

(TOTAL INDUCTANCE OF SEGMENTED LOOP SPLICED IN PARALLEL.

L = 1 / [(1 / L ) + (1 / L ) + (1 / L ) + etc.], (TOTAL INDUCTANCE OF SEGMENTED LOOP SPLICED IN SERIES.)

L = L + L + L etc., IN FEET OR METERS.

D = LENGTH OF LEAD-IN CABLE FROM SPLICE IN HANDHOLE TO CONTROLLER,

N = NUMBER OF TURNS.

P = PERIMETER OF INDIVIDUAL LOOP SEGMENT, IN FEET OR METERS.

L = INDUCTANCE OF LEAD-IN CABLE.

L = INDUCTANCE OF INDIVIDUAL LOOP SEGMENTS IN MICROHENRIES ( ).

CALCULATE RESISTANCE AT 5' | (1500|) INTERVALS

2" (50) RMC

2" (50) RMC

RE-TUNES AUTOMATICALLY WITHOUT ANY MANUAL ADJUSTMENTS.

FUSE OR HARNESS CONNECTOR. RETURN POWER TO THE AMPLIFIER AND CONFIRM IT

AFTER THE AMPLIFIER HAS TUNED AND IS OPERATING, DISCONNECT POWER BY REMOVING

DIMENSIONS ARE IN ENGLISH ('.")

& METRIC UNITS (mm).

- UNDER 1" TO NEAREST 1 mm.

- OVER 1" TO NEAREST 5 mm

METRIC DIMENSIONS ARE ROUNDED:

REV. DATE REVISION DESCRIPTION Plotted Date:

OF WORK WHICH WILL BE REQUIRED.

THE CONDITIONS OF ACTUAL QUANTITIES

IN NO WAY WARRANTED TO INDICATE

INVESTIGATIONS BY THE STATE AND IS

SHEETS IS BASED ON LIMITED

QUANTITIES OF WORK, SHOWN ON THESE

THE INFORMATION, INCLUDING ESTIMATED

1/7/2014

NOT TO SCALE

DEPARTMENT OF TRANSPORTATION

STATE OF CONNECTICUT

CTDOT_TRAFFIC_STD.DGNFilename: Model:

APPROVED BY:

TR-1000_01

SUBMITTED BY: NAME/DATE/TIME:

NAME/DATE/TIME:

C

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O F TRAN

S

P O

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STANDARD SHEET TITLE: STANDARD SHEET NO.:

OFFICE OF ENGINEERING

CTDOT

TR-1000_01

GENERAL CLAUSES

(TEST PROCEDURES)

4-2012 MINOR REVISIONS.

3: POWER INTERRUPTION:

1. WHEN REQUESTED BY THE ENGINEER, MEASURE RESISTANCE-TO-GROUND OF GROUND ROD AT

TRAFFIC CONTROL FOUNDATIONS. SEE FALL-OF-POTENTIAL METHOD. IF LESS THAN 10 ohms, INSTALL SUPPLEMENTAL ELECTRODES AS REQUIRED. NEC ARTICLE 250.

2. DURING THE TEST, THE GROUND ROD SHOULD NOT BE BONDED TO ANY RMC IN THE FOUNDATION.

3. THE VOLTAGE SOURCE, VOLTMETER, AMMETER, ELECTRODES P AND C, AND CONNECTING CABLES ARE AVAILABLE

4. REFER TO NATIONAL ELECTRICAL SAFETY CODE (NESC) SECTION 09, GROUNDING METHODS FOR ELECTRIC SUPPLY

5. REFER TO NATIONAL ELECTRICAL CODE (NEC) CHAPTER 2, ARTICLE 250, GROUNDING.

1-2014 REVISED GROUND RESISTANCE NOTES.

Tracy L. Fogarty

2014.01.07 16:11:26-05'00'

Charles S. Harlow

2014.01.08 09:02:11-05'00'

CT DOT

COMMUNICATION

CONDUIT

BURIED BELOW

CALL BEFORE

YOU DIG

1 - 800

922 - 4455

XX

OW

SAND

BEVELED END

GROUND LINE

CONDUIT

SAND BACKFILL LEVEL

SUITABLE BACKFILL

SIGN FACE DETAIL

INTERCONNECT TYPICAL CURB CROSSING

M

IN

M

IN

NOTES:

1. RESTORE AREAS DISTURBED BY TRENCH TO ORIGINAL CONDITION.

CONDUIT

NOTES:

1. 4" x 4" NOMINAL, PRESSURE TREATED WOOD POST.

NYLON WASHER ON FACE OF SIGN.

IS GREATER THAN 1500' APART.

36" (MIN)

10' (MIN)

36" (MIN)

6"

2" (MIN)

1¼"

1½"

SIGN FACE ON ALL FOUR SIDES

ATTACH NUMBERS TO SIDE OF POST FACING CONDUIT.

TO TRENCH CONTAINING COMMUNICATION CABLE.

2¾" (TYP)

⅜" (TYP)

½" (TYP)

4" MIN

8" MIN

24"

MAX

12"

T

O

SIGN # 41-4669

4" MIN.

SAW CUT EDGE

6" TO 12"

SAW CUT EDGE

CONDUIT

CONCRETE OVERLAY

EXISTING BITUMINOUS

EXISTING BITUMINOUS OR PCC PAVEMENT

EXISTING BITUMINOUS

T

O

CONCRETE OVERLAY

BEDDING MATERIAL OR SAND

1. TOTAL HOT MIX ASPHALT (HMA) THICKNESS TO MATCH EXISTING BITUMINOUS

SAW CUT EDGE, TACK COAT, AND

SEAL JOINT AFTER PAVING. (TYP)

EXISTING GRADE

2. ATTACH SIGN TO POST WITH ¼" x 1¼" STAINLESS STEEL LAG SCREW WITH

4. INSTALL POST APPROX 24" FROM RMC IN VICINITY OF EACH INTERCONNECT HANDHOLE.

5. INSTALL ADDITIONAL POST(S) WHERE SPACING BETWEEN INTERCONNECT HANDHOLES

6. PERMANENTLY ATTACH STAINLESS STEEL NUMBERS INDICATING DISTANCE IN FEET

SEE NOTE 6 3"

UNDER EXISTING UTILITYCROSSING

30" MAX TYP

CAUTION - CABLE BURIED BELOW

NOTE:

EXISTING UTILITY PIPE OR CONDUIT

NOTES:

DETECTABLE WARNING TAPE

8" MIN.

12" MIN.

NOTES:

CONCRETE AND PORTLAND CEMENT CONCRETE (PCC) THICKNESS.

2. WHEN ALLOWED BY ENGINEER, USE CONTROLLED LOW STRENGTH MATERIAL (CLSM)

AS BEDDING MATERIAL. TOP OF CLSM SHALL BE AT LEAST 20" BELOW SURFACE.

SIDEWALK EARTH

NOTES:

1. IN MOWED AREAS: PLACE TOPSOIL, FERTILIZER, SEED, & MULCH.

4" MIN

REFER TO NOTE 1

GENERAL NOTES:

1. TOP OF CONDUIT AT LEAST 24" DEEP.

2. COMPACT BACKFILL IN 6" LIFTS.

1. WHEN ENCOUNTERED AT APPROXIMATELY THE SAME

DEPTH, CROSS BENEATH.

INTERCONNECT CONDUIT

STANDARD SPECIFICATIONS, SECTION 9.50 OR SEEDING TYPE CALLED OUT ON THE PLANS.

DETECTABLE WARNING TAPE

COMMUNICATION - ORANGE BACKGROUND / BLACK LEGEND

STANDARD SPECIFICATIONS, ARTICLE: 1.05.15

1. TAPE COLORS:

2. PROTECT & SUPPORT EXPOSED EXISTING UTILITY.

HAND COMPACTION NOT PERMITTED.

POWER - RED BACKGROUND / BLACK LEGEND

IDENTIFICATION POST

LEGEND - BLACK (OPAQUE).

3. SIGN COLORS: BACKGROUND - ORANGE (RETROREFLECTIVE)

DETECTABLE

WARNING TAPE

OVERLAYED PORTLAND CEMENT CONCRETE

PAVEMENT - BITUMINOUS CONCRETE OR

12" 12"

BE 4"

MINIMUM COMPACTED PAVEMENT THICKNESS SHALL

S0.375 TRAFFIC LEVEL 2 IN MULTIPLE 2"-3" LIFTS

MATCH EXISTING PAVEMENT THICKNESS USING HMA

COMPACTED IN 4" LIFTS

PROCESSED AGGREGATE BASE MATERIAL

TRANSVERSE ENDS OF THE TRENCH

TRAFFIC LEVEL 2, AND SAWCUT

TRAFFIC LEVEL 2, OR 2" HMA S0.5

MILL 2" THEN PLACE 2" HMA S0.375

TACK COAT EDGES (TYP.)

SAND

WARNING TAPE

SUITABLE BACKFILL

CONDUIT

24"

MAX

8" MIN

4" MIN

T

O

12"

SIDEWALK

NOTES:

1. WHERE CONCRETE SIDEWALK IS DAMAGED OR CUT, REPLACE THE

ENTIRE SECTION BETWEEN JOINTS. REPLACEMENT SIDEWALK IS

PAID FOR UNDER THE ITEM "CONCRETE SIDEWALK".

STANDARD SPECIFICATIONS, SECTIONS 9.21 & 9.22

DETECTABLE

COMPACTED IN 4" LIFTS

GRANULAR FILL SHALL BE

8"

STANDARD SPECIFICATION, SECTION 3.04 AND STANDARD SPECIFICATION, ARTICLE 4.06.03

STANDARD SHEET TITLE: STANDARD SHEET NO.:

CONNECTICUT

D E

P A

R T

M E

N T

O F TRANS

P O

R T

A T I

O N

STATE OF CONNECTICUT

TRANSPORTATION

OF

DEPARTMENT

SIGNATURE BLOCK:

TRENCHING & BACKFILLING, ELECTRICAL CONDUIT

TR-1001_01

NOT TO SCALE

NEWINGTON, CT 06111

2800 BERLIN TURNPIKE

OFFICE OF ENGINEERING

STANDARD SHEET

CTDOT

SUBMITTED BY: APPOVED BY:

LEGEND AS SHOWN ON TRAFFIC CONTROL SIGNAL PLAN:

PROPOSED RMC (RIGID METAL CONDUIT)

SAND

EXISTING RMC (RIGID METAL CONDUIT)

CURB OR EDGE OF ROAD

INTERCONNECT

HANDHOLE

UNPAVED EARTH

22.5°- 48" RADIUS

BITUMINOUS SHOULDER

22.5°- 48" RADIUS 22.5°- 48" RADIUS

22.5°- 48" RADIUS

CONDUIT

CONDUIT

CABLE ITEM.

IDENTIFICATION POSTS WITH SIGNS SHALL BE PAID UNDER THE COMMUNICATION 7.

Lisa N. Conroy, P.E.

2024.01.23 08:17:40-05'00'

Digitally signed by Matthew C. Blume, P.E., PTOE

Date: 2024.02.21 08:25:47-05'00'

LEGEND AS SHOWN ON TRAFFIC CONTROL SIGNAL PLAN:LEGEND AS SHOWN ON TRAFFIC CONTROL SIGNAL PLAN:

STEEL SPAN POLE, MAST ARM ASSEMBLY SHAFT

TRAFFIC SIGNAL

PEDESTRIAN SIGNALP

PEDESTAL MOUNTED, TRAFFIC & PEDESTRIAN SIGNALS

POLE MOUNTED, TRAFFIC & PEDESTRIAN SIGNALS

P

P

ALUMINM PEDESTAL

CURBLINE

DETAIL

TYP

TYP

FROM TURNING VEHICLES.

SIDE MOUNT PEDESTRIAN OR TRAFFIC SIGNALS TO AVOID VISOR DAMAGE

WHEN PEDESTALS OR SPAN POLES ARE INSTALLED CLOSE TO THE CURB,

POLE MOUNTED

ONE WAY TRAFFIC SIGNAL

PEDESTAL MOUNTED

ONE WAY TRAFFIC SIGNAL

PEDESTAL MOUNTED

ONE WAY WALK SIGNAL

(25)

1"

TYP

TYP

(2400)

8’-0"

PEDESTAL BASE PLAN

OUTLET TEE, IRON, TYP

1�" (38) SSIDE

SCREW OR PIN

DRILL, INSTALL SET

B

B

A

A

C

D

D

C

B

A

2" (50)

NOT MORE THAN

CONDUIT HEIGHT

NOTES:

SECURE LOWER HUB PLATE WITH STAINLESS STEEL SET SCREW OR PIN PRIOR TO

BASE DESIGNED AS BREAK-AWAY.

INCANDESCENT WALK SIGNAL LAMPS ARE 67 WATTS, RATED AT 8000 HOURS LAMP LIFE.

ONE WAY WALK SIGNAL.

SIGNAL SHALL BE MOUNTED SAME AS

PEDESTAL MOUNTED ONE WAY VEHICLE

NOTE:

INSTALLATION DETAIL

ALUMINUM PEDESTAL

DOOR OPENING DETAIL

ALUMINUM PEDESTAL

(450)

18"|

(238)

9�"|

(325)

13"|

(200)

8"|

BOLT CIRCLE

11 �" - 12 �" (288 - 319)

MAX

1�" (30)

(285)

11�"

(325)

13"

(325)

13"

16"|

(400|)

BANDING IN PLACE. (TYP)

INDENT, TO HOLD

ADAPTER, IRON

POST TOP MOUNTED

ADAPTER, IRON

POST TOP MOUNTED

GROUND WIRE

GROUND CLAMP

GROUND ROD

TOP AND BOTTOM, TYP

1�" (38) HUB PLATE, IRON

INSTALLED.

AFTER WIRES HAVE BEEN

EXPANSION AEROSOL FOAM

FILL TOP OF PEDESTAL WITH

STEEL BANDING AND BUCKLE, TYP

�" (19) STAINLESS

SERRATED ELL, IRON, TYP

COMPARTMENT, IRON

ADAPTER WITH TERMINAL

POST TOP MOUNTED

TRANSFORMER BASE

HEX NUT AND WASHER

ANCHOR BOLT WITH

SHIM AS REQ’D

NUT - STAINLESS STEEL

TWO WASHERS AND

GROUNDING STUD

1�" (38) NIPPLE, STEEL, TYP

RMC SWEEP

COMPARTMENT, IRON

ADAPTER WITH TERMINAL

POST TOP MOUNTED

MIN

(450|)

18"|

10"|

(250|)

TYP

(2400)

8’-0"

TYPICAL INDICATION WHEN LIT

STEADY HAND FLASHING HAND

WALK PED CLEAR.DON’T WALK

9"

(225)

STEADY HAND/

FLASHING HAND

WALK

NON-COUNTDOWN DISPLAY, ONLY WHEN SHOWN ON PLAN.

DON’T WALK/PED CLEAR.

STEADY PERSON

STEADY PERSON

BANDING TO PREVENT MOVEMENT. INSTALL CABLE THROUGH BOTTOM OF HUB PLATE.

LED WALK SIGNAL LAMPS ARE MAXIMUM 15 WATTS, WARRANTEED AT 5 YEAR LIFE.

REFER TO CTDOT TRAFFIC STANDARD SHEET,

TR-1105_01, TRAFFIC SIGNALS & CABLE ASSIGNMENTS.

IF THREADED, MIN 1" (25) THREADED INTO BASE, SECURED WITH STAINLESS

STEEL SET SCREWS.

DRILL & DEBURR

DIMENSIONS ARE IN ENGLISH (’.")

& METRIC UNITS (mm).

- UNDER 1" TO NEAREST 1 mm.

- OVER 1" TO NEAREST 5 mm

METRIC DIMENSIONS ARE ROUNDED:

REV. DATE REVISION DESCRIPTION Plotted Date:

OF WORK WHICH WILL BE REQUIRED.

THE CONDITIONS OF ACTUAL QUANTITIES

IN NO WAY WARRANTED TO INDICATE

INVESTIGATIONS BY THE STATE AND IS

SHEETS IS BASED ON LIMITED

QUANTITIES OF WORK, SHOWN ON THESE

THE INFORMATION, INCLUDING ESTIMATED

4/14/2012

NOT TO SCALE

DEPARTMENT OF TRANSPORTATION

STATE OF CONNECTICUT

CTDOT_TRAFFIC_STD.dgnFilename: Model:

TR-1102_01

NAME/DATE/TIME:

C

ONNECTICU

T

D E

P A

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M E

N T

OF TRAN

S

P O

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A T I

O N

STANDARD SHEET TITLE: STANDARD SHEET NO.:

OFFICE OF ENGINEERING

1-2010 INCLUDED COUNTDOWN PEDESTRIAN SIGNALS.

TR-1102_01

PEDESTALS, PEDESTRIAN SIGNALS

4-2012 MINOR REVISIONS.

Tracy L. Fogarty

2012.05.01 12:55:27-04'00'

Timothy M. Wilson

2012.05.09 10:24:58-04'00'

LEGEND AS SHOWN ON TRAFFIC CONTROL SIGNAL PLAN:

SIGN #

8' (2400) PEDESTAL4'-4" (1300) PEDESTAL

PEDESTRIAN PUSH BUTTON

PEDESTRIAN PUSH BUTTON, PEDESTAL MOUNTED

PEDESTRIAN PUSH BUTTON, POLE MOUNTED

DETAIL A

3'-6" (1050) FROM FINISHED GRADE SUCH AS SIDEWALK TO CENTER OF PUSH BUTTON.

PUSH BUTTON INSTALLATIONS SHALL CONFORM TO THE REQUIREMENTS OF THE AMERICANS

ALLOY CAP

TYP

(1050)

3'-6"

SIGN # 31-0835

GROUND LINESUBBASE

SURFACE MOUNTED PEDESTAL MOUNTED

SEE DETAIL A.

PUSH BUTTON ASSEMBLY.

POLE MOUNTED PEDESTRIAN

MOUNTED

SPAN POLE/MAST ARM

GENERAL NOTES:

panelStyle:guide_fwy_recreational_major.ssipanelName:31-0845panelQuantity:1panelStation:nonepanelMaterial:0legendMaterial:0panelMounting:1panelWidthLock:1panelHeightLock:1marginAlign:9panelRoundCorners:0constructPanelMode:0constructPanels:36|24|18panelSizes:panelStandard:1levels:GSCOLORFILL|GSBWFILL|GSOUTLINE

TO BE

DETERMINED

DIMENSIONS ARE IN ENGLISH ('.")

& METRIC UNITS (mm).

- UNDER 1" TO NEAREST 1 mm.

- OVER 1" TO NEAREST 5 mm

METRIC DIMENSIONS ARE ROUNDED:

REV. DATE REVISION DESCRIPTION Plotted Date:

OF WORK WHICH WILL BE REQUIRED.

THE CONDITIONS OF ACTUAL QUANTITIES

IN NO WAY WARRANTED TO INDICATE

INVESTIGATIONS BY THE STATE AND IS

SHEETS IS BASED ON LIMITED

QUANTITIES OF WORK, SHOWN ON THESE

THE INFORMATION, INCLUDING ESTIMATED

8/9/2018

NOT TO SCALE

DEPARTMENT OF TRANSPORTATION

STATE OF CONNECTICUT

CTDOT_TRAFFIC_STD_2018-01-25.dgnFilename: Model:

TR-1107_01

NAME/DATE/TIME:

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STANDARD SHEET TITLE: STANDARD SHEET NO.:

OFFICE OF ENGINEERING

4-2012

TR-1107_01

PEDESTRIAN PUSH BUTTONS

MINOR REVISIONS & UPDATED SIGN #31-0845.

4-2014 ADDED PEDESTRIAN EXAMPLE ALIGNMENTS

TO THE CROSSWALK

NOT

CORRECT ALIGNMENT

CORRECT ALIGNMENT

TACTILE ARROW

POINTING PARALLEL

TACTILE ARROW POINTING

TO THE PEDESTRIAN RAMP

P P

NOT

CORRECT ALIGNMENT

CORRECT ALIGNMENT

POINTING PARALLEL

P P

TO THE CROSSWALK

POINTING TO THE

PEDESTRIAN RAMP

WHERE

APPROPRIATE

4'-4" (1300) PEDESTAL TO INCLUDE ALLOY CAP SECURED WITH STAINLESS STEEL SET SCREW.

FOR EXCLUSIVE PEDESTRIAN PHASE

EXAMPLE ALIGNMENTS

PEDESTRIAN PUSH BUTTON ALIGNMENT ACCESSIBLE PEDESTRIAN SIGNAL AND DETECTOR

OTHERWISE NOTED ON PLAN.

USE APPROPRIATE ARROW UNLESS

WITH SIDE STREET GREEN

FOR CROSSING

WITH DISABILITIES ACT (ADA) STANDARDS FOR ACCESSIBLE DESIGN, CURRENT EDITION GOVERNS.

UPDATED PEDESTRIAN SIGN LEGENDS AND NOTES.3 8-2018

SIGN # 31-0833

USE APPROPRIATE LEFT OR RIGHT ARROW

USE 9" x 15" SIGN NO. 31-0856.

FOR NEW PUSHBUTTON HOUSING,

WITH 9" x 12" SIZE, USE SIGN NO. 31-0845.

FOR EXISTING PUSHBUTTON HOUSING,

OR RIGHT ARROW

VARIABLE LEFT

TAPPED HOLE

SUPPORT ANGLE (2 REQUIRED)

TAPPED HOLE

SIGN

WITH RUBBER GROMMET

3/4" (19) DIA HOLE

STATION BODY

PUSH BUTTON

ARROW ON SIGN ARROW ON SIGN

Tracy L. Fogarty, P.E.

2018.08.16 12:13:35-04'00'

Mark F. Carlino, P.E.

2018.08.21 07:46:57-04'00'

REFER TO APPLICABLE TYPICAL

SHEETS FOR STRUCTURE SUPPORTS

FOR MINIMUM DISTANCE TO HIGHEST

POINT OF TRAVEL PATH.

SUPPORT

C VERTICAL

C HORIZONTAL

SUPPORT

L

L

LEFT SHOULDER

INSTALLATION

E

F

C VERTICAL

SUPPORT

L

F E

RIGHT SHOULDER

INSTALLATION

NOTES:

DIRECTION OF TRAVEL

SIGN

90°

POINT AT WHICH

SIGN SHALL BE READ

O

C E

R

D I

T

IO

N

F

RAVEL

T

SIGN

1) FOR PLACEMENT OF CANTILEVER SIGN SUPPORT USE APPLICABLE

3) IMPACT PROTECTION SHALL BE PROVIDED FOR THE SIGN SUPPORTS LOCATED

PORTION OF ABOVE DETAIL.

SEE NOTE 4

SEE NOTE 3

SEE NOTE 4

SEE NOTE 3

DIAGRAM "A"

DIAGRAM "B"

SIGN ORIENTATION DETAILS

TYPICAL PLACEMENT OF SIDE MOUNTED SIGNS ON

STRUCTURAL STEEL BREAKAWAY SIGN SUPPORTS

NOTES:

SHOULDER

F

E

CALLED FOR ON SIGNING PLANS

2) WHERE GUIDE RAIL IS USED, THE OFFSET TO THE NEAR EDGE OF SIGN FACE

SHALL BE AS SHOWN ELSEWHERE IN THE CONTRACT PLANS.

3) ON INTERSECTING ROADS AT RAMP TERMINI, THE OFFSET TO THE NEAR

REV. DATE REVISION DESCRIPTION Plotted Date:

OF WORK WHICH WILL BE REQUIRED.

THE CONDITIONS OF ACTUAL QUANTITIES

IN NO WAY WARRANTED TO INDICATE

INVESTIGATIONS BY THE STATE AND IS

SHEETS IS BASED ON LIMITED

QUANTITIES OF WORK, SHOWN ON THESE

THE INFORMATION, INCLUDING ESTIMATED

8/10/2018

NOT TO SCALE

DEPARTMENT OF TRANSPORTATION

STATE OF CONNECTICUT

TR_1208_01_1_2018.dgnFilename: Model:

TR-1208_01

NAME/DATE/TIME:

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STANDARD SHEET TITLE: STANDARD SHEET NO.:

OFFICE OF ENGINEERING

2-2011 MINOR REVISIONS.

TR-1208_01

30'-0" OR AS

7' (MIN)

1) MIN. VERTICAL CLEARANCE ABOVE SIDEWALKS SHALL BE 7'.

EDGE OF OF SIGN FACE SHALL BE 6' MIN. FROM POINT "E".

4) IF 30'-0" MIN. CANNOT BE MET, PLEASE CONTACT THE ENGINEER.

5) ALL SIGNS ARE TO BE LEVEL, REGARDLESS OF CAMBER IN SUPPORT.

0'

SHOULDER

B

C A

(OPTIONAL)

RETROREFLECTIVE STRIP

B

C

(OPTIONAL)

RETROREFLECTIVE STRIP

A

SHOULDER

SIDEWALK

SHOULDER

B

AC

ASSEMBLY LOCATION

SIDEWALKS

ALL SIGNS AND SHIELDS ON DIRECTIONAL ASSEMBLIES SHALL ABUT VERTICALLY.

DIM."B"

DIM."C"

1 OR AS DIRECTED BY THE ENGINEER

DIM."A"

2 3

4 5

TYPICAL SIGN PLACEMENT DETAIL

OR OTHER OBSTRUCTIONS LIMIT VISIBILITY

MIN SIGN

HEIGHT

MIN LATERAL

OFFSET

MIN PLAQUE

HEIGHT

BUSINESS & RESIDENTIAL AREAS WHERE PARKING

3"

3"

A

RETROREFLECTIVE STRIP DETAIL

48" LONG OR LESS:

RETROREFLECTIVE STRIPS

OVER 48" LONG:

RETROREFLECTIVE STRIPS

3"

3"

A/2

A/2

THE SUPPORT FROM THE BOTTOM OF THE SIGN TO WITHIN 2 FT ABOVE THE EDGE OF THE ROADWAY.

IF A RETFOREFLECTIVE STRIP IS USED ON SIGN SUPPORT, IT SHALL BE PLACED FOR THE FULL LENGTH OF

7'

2'

12'

6'

7'

6'

4'

5'

2 8 FT MINIMUM HEIGHT REQUIRED IF A SUPPLEMENTAL PLAQUE IS SUBMOUNTED BELOW THE MAJOR SIGN.

12 FT FROM EDGE OF TRAVELWAY, WHEN SHOULDER IS LESS THAN 6 FT WIDE.

6 FT FROM EDGE OF SHOULDER, WHEN SHOULDER IS OVER 6 FT WIDE

5 A CLEAR PATH OF NOT LESS THAN 4 FT SHALL BE PROVIDED IN SIDEWALK AREAS.

IS LIMITED OR WHERE EXISTING UTILITY POLES ARE CLOSE TO THE CURB.

A LATERAL OFFSET OF AT LEAST 1 FT FROM THE FACE OF THE CURB MAY BE USED WHERE SIDEWALK WIDTH

2' (MAX)

2' (MAX)

5'

7'

7'

2'

2'

RETROREFLECTIVE STRIP DETAILS

TYPICAL PLACEMENT OF OVERHEAD SIGNS ON SIGN SUPPORTS

NOTES:

"DO NOT ENTER" SIGNS SHALL BE RED.

OF THE SIGN, EXCEPT THAT THE COLOR OF THE STRIP FOR "YIELD" AND

RETROREFLECTIVE STRIP COLOR SHALL MATCH THE BACKGROUND COLOR

NOTES:

18' MIN.

WITHIN CLEAR ZONE.

DEFLECTION AREA.

BREAKAWAY SIGN SUPPORTS AS FOLLOWS:

FOR MAXIMUM EFFECTIVENESS, POSITION SIDE MOUNTED SIGNS ON STRUCTURAL STEEL

LINE BETWEEN THE SIGN AND THE POINT AT WHICH THE SIGN SHALL BE READ.

PLUMB AND THE HORIZONTAL AXIS IS AT AN ANGLE OF 90° WITH A STRAIGHT

ON A HORIZONTAL CURVE SECTION, POSITION THE SIGN SO THE VERTICAL AXIS IS

2) BARRIER SYSTEMS MAY BE REQUIRED FOR BOTH SIDES OF SUPPORTS IN MEDIANS.

4) SIGN SUPPORT FOUNDATIONS SHALL BE LOCATED OUTSIDE OF BARRIER SYSTEMS

AND SIGN MOUNTING DETAILS" FOR MOUNTING DETAILS.

REFER TO STANDARD SHEET No. TR-1208_02 "METAL SIGN POSTS

THE DETAILS ABOVE.

48 IN LONG SHALL BE ATTACHED USING 3 BOLTS AS SHOWN ON

BE ATTACHED USING 2 BOLTS AND RETROREFLECTIVE STRIPS OVER

RETROREFLECTIVE STRIPS WHICH ARE 48 IN LONG OR LESS SHALL

OR FACE OF CURB

EDGE OF SHOULDER

EDGE OF TRAVELWAY

OR FACE OF CURB

EDGE OF SHOULDER

EDGE OF TRAVELWAY

OR FACE OF CURB

EDGE OF SHOULDER

EDGE OF TRAVELWAY

SIGN PLACEMENT AND

PARKING SIGNS TYPICALLY USE 45° MOUNTING BRACKET.

SHALL BE TURNED APPROXIMATELY 3° TOWARD THE ROAD.

THE SIGN SERVES. SIGNS LOCATED 30 FT OR MORE FROM THE EDGE OF THE ROAD

THE HORIZONTAL AXIS IS AT AN ANGLE OF 90° WITH THE TRAFFIC LANE WHICH

ON A TANGENT SECTION, POSITION THE SIGN SO THE VERTICAL AXIS IS PLUMB AND

SIGN POSTS AND SIGN MOUNTING.

REFER TO STANDARD SHEET No. TR-1208_02 "METAL SIGN POSTS AND SIGN MOUNTING DETAILS" FOR

5' 2' N/A

4' 2'

SIGNS IN RURAL AREAS

DO NOT ENTER AND WRONG WAY SIGNS ALONG EXIT RAMPS

DO NOT ENTER AND WRONG WAY SIGNS ON LIMITED ACCESS HIGHWAYS

CENTRAL ISLANDS OF ROUNDABOUTS

STRUCTURAL STEEL BREAKAWAY SIGN SUPPORTS

FOR SIDE MOUNTED SIGNS ON

SIGNS ON FREEWAYS AND EXPRESSWAYS EXCEPT CHEVRON ALIGNMENT SIGNS,

FREEWAYS, EXPRESSWAYS, RAMPS, AND IN RURAL AREAS

CHEVRON ALIGNMENT SIGNS LOCATED ON

ONE-DIRECTION LARGE ARROW SIGNS LOCATED ON

FREEWAYS, EXPRESSWAYS, RAMPS, AND IN RURAL AREAS

4'

AND WRONG WAY SIGNS

ONE-DIRECTION LARGE ARROW SIGNS, DO NOT ENTER SIGNS,

4-2017 MINOR REVISIONS.

2"

MIN

2"

MIN

4' N/A

INCIDENT MANAGEMENT SIGNS AND MILE POST MARKER ASSEMBLIES

LOCATED ON FREEWAYS AND EXPRESSWAYS312'

6'

8-2018 INCLUDED INCIDENT MANAGEMENT AND MILE MARKER SIGNS.

Mark F. Makuch, P.E.

2018.08.17 09:06:06-04'00'

Mark F. Carlino, P.E.

2018.08.21 07:48:06-04'00'

2"

TYPICAL METAL SIGN POSTS

SIGN PANEL

NYLON WASHER

AA

CC

SECTION C-C

SECTION A-A

TAPER

SIGN PANEL

NYLON WASHER

DIRECTION

OF TRAVEL

42''

GROUND

LINE

S I G

N

S T

FF

B A

S E

S

T

FF

BREAKAWAY

SIGN POST

SUB-BASE

SCHEDULE 40 OR 80

PVC

G G

TAPER

GENERAL NOTES:

SELF LOCKING NUT WITH

SIGN PANEL

3„"

TYPICAL SLEEVE

FOR PAVED AREAS

OR CONCRETE

BITUMINOUS

DIRECTION

OF TRAVEL

BOLT WITH FLAT WASHER,

REQUIREMENTS CONTAINED IN THE CURRENT "STANDARD SPECIFICATIONS FOR

6. ALL SIGN POSTS SHALL HAVE BREAKAWAY FEATURES THAT MEET AASHTO

SHALL BE IN ACCORDANCE WITH MANUFACTURERS RECOMMENDATIONS.

THE BREAKAWAY FEATURES SHALL BE STRUCTURALLY ADEQUATE TO CARRY THE

STRUCTURAL SUPPORTS FOR HIGHWAY SIGNS, LUMINAIRES AND TRAFFIC SIGNALS."

2. AFTER FABRICATION, ALL STEEL POSTS, STRAPS AND PLATES SHALL BE

SIDEWALK

LIGHTLY

COMPACTED FILL

HEX HEAD BOLT

RADII SHALL BE AS SMALL AS PRACTICAL

PLASTIC OR FIBER INSERT.

•" I.D. X •" O.D. X ˆ" THICK

•" I.D. X †" O.D. X •" THICK

LENGTH AS REQUIRED

METAL DELINEATOR POST

6'-6''

3" (75)

HEX HEAD

WASHER •" I.D. X •" O.D. X ˆ" THICK

SELF LOCKING NUT WITH PLASTIC OR FIBER INSERT

…" I.D. X †" O.D. X •" THICK

TYPICAL BACK TO BACK SIGN PANEL ATTACHMENT

SELF LOCKING NUT WITH PLASTIC OR FIBER INSERT

HEX HEAD

TYPICAL BACK-UP PLATE

NYLON WASHER

…" I.D. X †" O.D. X •" THICK

WASHER •" I.D. X •" O.D. X ˆ" THICK

SECTION F-F

LOCK WASHER AND HEX NUT.

CADMIUM PLATED HEX HEAD

LENGTH

OR

AS

REQUIRED

STAINLESS STEEL WASHER

STEEL FOR ALL OTHER POSTS SHALL CONFORM TO THE MECHANICAL

REQUIREMENTS OF ASTM A 499 GRADE 80 AND TO THE CHEMICAL

REQUIREMENTS OF ASTM A1 CARBON STEEL TEE RAIL HAVING NOMINAL

3. WASHERS FOR BREAKAWAY INSTALLATIONS SHALL MEET ASTM F436, TYPE 1.

5. ALL BOLTS, NUTS, AND WASHERS FOR BREAKAWAY INSTALLATIONS SHALL BE

ALLOY GROUP 1 OR 2 (ALLOY TYPES 304 OR 316).

BOLTS - STAINLESS STEEL CONFORMING TO ASTM F593,

WASHERS - STAINLESS STEEL CONFORMING TO ASTM A240,

SELF LOCKING NUTS - STAINLESS STEEL CONFORMING TO ASTM F594,

ALLOY GROUP 1 OR 2 (ALLOY TYPES 304 OR 316).

5" LONG X ƒ" WIDE X •" Thk.

TYPICAL SIGN PANEL ATTACHMENT

(ALLOY TYPES 304 OR 316).

2-2011 MINOR REVISIONS.

METAL SIGN POSTS

AND SIGN MOUNTING DETAILS

HOLES 1" O.C.

…" DIA.

1"

1"

3"

Š" DIA. GRADE 9

4''

2"

3•"

…" DIA. HOLE

BACK-UP PLATE „" THICK

Š" BOLT

BACK-UP PLATE „" THICK

Š" BOLT

30 - …" DIA.

HOLES 1" O.C.

ƒ''

‡" MIN.

2" MIN.

1" MIN.

6" POLYVINYL CHLORIDE CONDUIT

6"

…" DIA. HOLE

1"

6‚"

5"

5"

" T

Y P

…" DIA. HOLE

Š" X 1"

.080 THICK ALUMINUM

DIRECTION

OF TRAVEL

SIGN POST

BREAKAWAY

SUB-BASE

GROUND LINE

LEDGE

B A

S E

P

O S

T

MATERIAL

SUB-BASE

COMPACTED

TYPICAL SIGN POST INSTALLATION IN LEDGE

WEIGHT (MASS) OF 91 LBS. OR GREATER PER LINEAR YARD.

GALVANIZED TO MEET THE REQUIREMENTS OF ASTM A123.

1. STEEL FOR DELINEATOR POSTS SHALL BE ASTM A36 STEEL.

GALVANIZED TO MEET THE REQUIREMENTS OF ASTM A153.

SIGNS SHOWN IN THE PLANS AT 60 mph WIND LOADINGS. INSTALLATIONS

VARIES

VARIES

REV. DATE REVISION DESCRIPTION Plotted Date:

OF WORK WHICH WILL BE REQUIRED.

THE CONDITIONS OF ACTUAL QUANTITIES

IN NO WAY WARRANTED TO INDICATE

INVESTIGATIONS BY THE STATE AND IS

SHEETS IS BASED ON LIMITED

QUANTITIES OF WORK, SHOWN ON THESE

THE INFORMATION, INCLUDING ESTIMATED

6/6/2017

NOT TO SCALE

DEPARTMENT OF TRANSPORTATION

STATE OF CONNECTICUT

TR-1208_02_May_2017_Revision.dgnFilename: Model:

TR-1208_02

NAME/DATE/TIME:

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STANDARD SHEET TITLE: GUIDE SHEET NO.:

CTDOT

OFFICE OF ENGINEERING

TR-1208_02

BREAKAWAY INSTALLATION

4" MIN

LEDGE SHALL BE REMOVED TO DRIVE THE BASE POST TO A DEPTH OF 38".

HOLE SHALL BE FILLED WITH SUB-BASE MATERIAL AND COMPACTED WITH A TAMPING

BAR, OR TECHNIQUE APPROVED BY THE ENGINEER, PRIOR TO BASE POST INSTALLATION.

42"

B A

S E

P

O S

T

WT./FT. = 1.12 LBS./FT. MIN.

FOR 4 LBS./FT. POSTS

45° MOUNTING BRACKET

REVEAL

4" MAX

EMBEDMENT

38" MINREVEAL

4" MAX

EMBEDMENT

38'' MIN

4. SPACER BAR FOR BREAKAWAY INSTALLATION SHALL CONFORM TO

THE MECHANICAL REQUIREMENTS OF ASTM A36.

7. SIGN POSTS SHALL BE 4 LBS./FT.

6-2017 SIGN POST REVISIONS.

GALVANIZED STEEL

BAR SPACER

OR ANOTHER BREAKAWAY SYSTEM

CRASH TEST REQUIREMENTS

FOR 4 LB/FT POSTS

THAT MEETS MASH OR NCHRP 350

DIA

3•"

1Š"

REVEAL

4" MAX

ƒ"

TYP.

SELF LOCKING NUT WITH

PLASTIC OR FIBER INSERT.

•" I.D. X •" O.D. X ˆ" THICK

STAINLESS STEEL WASHER

FOR INSTALLATION OF PARKING SIGNS

NYLON WASHER

•" I.D. X †" O.D. X •" THICK

Š" HEX HEAD BOLT

EMBEDMENT

24'' MIN

GROUND

LINE

Mark F. Makuch, P.E.

2017.06.07 07:30:30-04'00'

Mary E. Baker, P.E.

2017.06.13 15:28:14-04'00'

Gregory M. Dorosh, P.E.

2017.06.15 09:27:29-04'00'

TR-STD_INDEX
TR_1000_01
TR_1001_01
TR_1102_01
TR_1107_01
TR_1208_01
TR_1208_02
rsacchi@gm2inc.com
2026-10-29T08:43:08-0400
GM2 Associates, Inc.
Ronald Sacchi
I am approving this document

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