52073.12.301, ETC. - CURB RAMPS, PEDESTRIAN SIGNALS, & PAVEMENT MARKINGS AT VARIOUS INTERSECTIONS IN CATAWBA & GASTON COS. Addendum 1

Location:	North Carolina
Posted:	Aug 5, 2026
Due:	Aug 11, 2026
Agency:	Division of Highways
Type of Government:	State & Local
Category:	Y - Construction of Structures and Facilities Z - Maintenance, Repair or Alteration of Real Property
Publication URL:	To access bid details, please log in.

DL00387

POC

52073.12.301, ETC. - CURB RAMPS, PEDESTRIAN SIGNALS, & PAVEMENT MARKINGS AT VARIOUS INTERSECTIONS IN CATAWBA & GASTON COS.

081126_DL00387_CAT_GAST_ADD1.pdf

Doc. Type:
Addendum
Description: 52073.12.301, ETC. - CURB RAMPS, PEDESTRIAN SIGNALS, & PAVEMENT MARKINGS AT VARIOUS INTERSECTIONS IN CATAWBA & GASTON COS. POC
081126_DL00387_CAT_GAST_INVITE.pdf

Doc. Type:
Invitation to Bid
Description: 52073.12.301, ETC. - CURB RAMPS, PEDESTRIAN SIGNALS, & PAVEMENT MARKINGS AT VARIOUS INTERSECTIONS IN CATAWBA & GASTON COS. POC
081126_DL00387_CAT_GAST_PLAN.pdf

Doc. Type:
Plans
Description: 52073.12.301, ETC. - CURB RAMPS, PEDESTRIAN SIGNALS, & PAVEMENT MARKINGS AT VARIOUS INTERSECTIONS IN CATAWBA & GASTON COS. POC
081126_DL00387_CAT_GAST_PROPADD1.pdf

Doc. Type:
Proposals
Description: 52073.12.301, ETC. - CURB RAMPS, PEDESTRIAN SIGNALS, & PAVEMENT MARKINGS AT VARIOUS INTERSECTIONS IN CATAWBA & GASTON COS. POC

Attachment Preview

JOSH STEIN

GOVERNOR

STATE OF NORTH CAROLINA

DEPARTMENT OF TRANSPORTATION

August 5, 2026

DANIEL H. JOHNSON

SECRETARY

Contract No.: DL00387

WBS No.: 52073.12.301, Etc.

FA Number: TA12301

County:

Gaston & Catawba

Description: Pedestrian Improvements at Various Locations

August 11, 2026 Letting

RE: Addendum #1 to Contract No. DL00387

To Whom It May Concern:

Reference is made to the proposal furnished to you on this project.

The following revisions have been made to the proposal and proposal item sheets:

Sheet No.

TS-37

(52073.12.301)

Revision

Special Provision has been amended to include a pay item for

Central Control Unitfor APS Detector

TS-26 & 27 Special Provision has been amended to include a pay item for

(52073.12.305) Central Control Unitfor APS Detector

S-3

Pay Item No. 44 for Central Control Unitfor APS Detector has

been added.

Please download the revised proposal named

081126_DL00387_CAT_GAST_PROPADDl from the Division 12 Bid Page and discard

any previous versions. You will also be required to acknowledge the addendum when

bidding. The electronic bid file and addendum file are available from our current

electronic bidding provider (Bidx) through their website.

Mailing Address:

NC DEPARTMENT OF TRANSPORTATION

DIVISION 12

POBOX47

SHELBY, NC 28151-0047

Telephone: (980) 552-4200

Fax: (704) 480-5401

Courier: 06-53-03

Website: www.ncdot.gov

Location:

1710 E. MARION STREET

SHELBY, NC 28152

Docusign Envelope ID: D3A707B6-49CC-8646-80FB-254D8D937A20

52073.12.301

BN-0031LA

TS-1

Gaston County

Signals and Intelligent Transportation Systems

Project Special Provisions

(Version 24.3)

Prepared By: X. Han

5-Aug-26

8/5/2026

Document not considered final

unless all signatures completed.

Contents

1. 2024 STANDARD SPECIFICATIONS FOR ROADS & STRUCTURES...............................................................................2

1.1. ELECTRICAL JUNCTION BOXES (1091-5).....................................................................................................2

1.2. TRAFFIC SIGNAL ACTIVATION (1700-4) ......................................................................................................2

1.3. PEDESTALS (1098-15) .......................................................................................................................................2

2. SIGNAL HEADS.......................................................................................................................................................6

2.1. MATERIALS .......................................................................................................................................................6

A. General: ..............................................................................................................................................................6

B. Vehicle Signal Heads:.........................................................................................................................................8

C. Pedestrian Signal Heads: ..................................................................................................................................11

3. CONTROLLERS WITH CABINETS ..................................................................................................................13

3.1. MATERIALS – TYPE 2070LX CONTROLLERS ............................................................................................13

3.2. MATERIALS – GENERAL CABINETS...........................................................................................................13

3.3. MATERIALS – TYPE 170E CABINETS ..........................................................................................................14

A. Type 170 E Cabinets General: ..........................................................................................................................14

B. Type 170 E Cabinet Electrical Requirements:..................................................................................................15

C. Type 170 E Cabinet Physical Requirements:....................................................................................................21

D. Model 2018 Enhanced Conflict Monitor: .........................................................................................................24

E. Preemption and Sign Control Box ....................................................................................................................34

3.4. MATERIALS – TYPE 170 DETECTOR SENSOR UNITS ...............................................................................37

4. PUSH BUTTON INTEGRATED ACCESSIBLE PEDESTRIAN SIGNAL (APS) ..........................................37

4.1. DESCRIPTION ..................................................................................................................................................37

4.2. MATERIALS .....................................................................................................................................................37

4.3. CONSTRUCTION METHODS .........................................................................................................................39

4.4. MEASUREMENT AND PAYMENT ................................................................................................................39

Version 24.3

print date: 08/05/26

Docusign Envelope ID: D3A707B6-49CC-8646-80FB-254D8D937A20

BN-0031LA

TS-2

Gaston County

1. 2024 STANDARD SPECIFICATIONS FOR ROADS & STRUCTURES

The 2024 Standard Specifications are revised as follows:

1.1. ELECTRICAL JUNCTION BOXES (1091-5)

Page 10-209, revise paragraphs beginning on line 26 to read "Provide electrical junction boxes

with covers of the type and size indicated by the contract or plans for the termination of conduits.

Boxes and covers shall meet all requirements and specifications of ANSI/SCTE 77. Structural load

tests shall meet the Tier 15 application type.

Page 10-209, line 28, revise title of section 1091-5(B) from “Polymer Concrete (PC) Junction

Boxes” to “Polymer Concrete (PC), Composite, and Thermoplastic Junction Boxes”.

Page 10-209, revise paragraphs beginning on line 29 through line 41 to read “For PC junction

boxes, use polymer concrete material made of an aggregate consisting of sand and gravel bound

together with a polymer and reinforced with glass strands to fabricate box and cover components.

Provide junction boxes which have bolted covers and open bottoms. Provide vertical extensions

of 6 inches to 12 inches as required by project provisions.

Provide the required logo on the cover. Provide at least two size 3/8 inch diameter hex head

stainless steel cover bolts to match inserts in the box. Provide pull slot(s) with stainless steel pin(s).

Bodies of junction boxes shall be a single piece.

Polymer concrete, composite, and thermoplastic junction boxes are not required to be listed

electrical devices.”

1.2. TRAFFIC SIGNAL ACTIVATION (1700-4)

Page 17-4, revise paragraph beginning on line 42 through line 46 to read “Prior to placing signal in

the steady (stop-and-go) mode, the signal should be placed in yellow-red flashing mode for up to 7

days or as directed by the Engineer. Yellow-red flashing mode differs from the red-red flashing

mode shown in the signal plan. Yellow-red flash mode includes flashing the yellow signal

indications on all main street through movements while flashing the red signal indications on all side

street signal heads and any left turn heads on the main street. The signal should not be placed in the

steady (stop-and-go) mode on a Saturday or Sunday without prior approval from the Engineer. Do

not place the signal in steady (stop-and-go) mode until inspected and without prior approval of the

Engineer.”

1.3. PEDESTALS (1098-15)

Pages 10-226 through 10-230, revise section 1098-15 beginning on page 10-226 line 17 through

page 10-230 line 10 to read “Furnish pedestal assemblies and their components that are pre-approved

on the ITS & Signals QPL with foundations that conform to the AASHTO Standard Specifications for

Structural Supports for Highway Signs, Luminaires, and Traffic Signals, and the Interim Specifications

as shown on the plans. Refer to Roadway Standard Drawings No. 1743 for structural design

specifications for each type of pedestal.

(A) Pedestal Shaft

Furnish one piece pedestal shafts fabricated from either aluminum or galvanized steel pipe with a

uniform pipe outer diameter of 4.5 inches and of the lengths specified for the type of pedestal

shown on Roadway Standard Drawing No. 1743. Refer to Article 1743-2 for pedestal type

descriptions.

Version 24.3

print date: 08/05/26

Docusign Envelope ID: D3A707B6-49CC-8646-80FB-254D8D937A20

BN-0031LA

TS-3

Gaston County

For Type I (pedestrian pushbutton pedestals) and Type II (normal-duty pedestals), furnish shafts

constructed from schedule 40 extruded aluminum pipe that conforms to Aluminum Association

Alloy 6061-T6 with a tensile strength of 30 ksi and a minimum wall thickness of 0.237 inch.

Aluminum conduit will not develop the necessary strength required and is not allowed. Thread

and deburr in accordance with American National Standard Pipe Threads, NPT (ANSI B2.1).

Finish the exterior with a rough surface texture consisting of a uniform grain pattern that is

perpendicular to the axis of the pipe along the full pipe length. Unless otherwise specified, do not

use galvanized steel pipe for Type I and Type II pedestal shafts.

For Type III (heavy-duty pedestals), furnish schedule 120 galvanized steel pipe that conforms to

ASTM A53. Provide an 11 inch square by 1 inch thick steel base plate with minimum yield

strength of 36 ksi that conforms to ASTM A36. Fabricate the base plate with four equally

spaced bolt holes on an 11 inch bolt circle. Orient the bolt holes in the corners of the plate. Size

the holes to accommodate 1 inch diameter machine bolts. Weld the pedestal shaft to the center

of the base plate using a socket connection. Provide circumferential fillet welds at the top and

bottom of the base plate. Perform all welding in accordance with AWS Code on the plans. Hot-

dip galvanize the pedestal shaft and base plate assembly after fabrication in accordance with

ASTM A123. Unless otherwise specified, do not use aluminum pipe for Type III pedestal shafts.

(B) Transformer Bases

Furnish transformer bases for each type of pedestal shown on Roadway Standard Drawings No.

1743 fabricated from aluminum that meets Aluminum Association Alloy 356 or equivalent, and

that are designed to break upon impact in accordance with AASHTO requirements. Pre-approved

transformer base shape, size, and bolt circle dimensions may vary by product supplier, but are

structurally qualified for use by each pedestal type. Compliance with manufacturer’s installation

instructions is crucial to ensure optimal performance when impacted.

Provide a 0.5 inch minimum diameter, coarse thread hole cast into transformer base located

inside of base and oriented for easy access for use in grounding and bonding.

Provide an access opening for all transformer bases with an access door that is attached with a

1/4 inch x 3/4 inch long stainless steel vandal proof screw to secure access door.

For Type I (pedestrian pushbutton pedestals) and Type II (normal-duty pedestals), provide a

threaded opening at the top of the base to receive a 4 inch NPT pipe shaft. Include a set screw

prep and 3/8 inch-16 x 1 inch stainless steel set screw to secure the pedestal post to the pedestal

base. Fabricate the bottom of the transformer base with four equally spaced holes or slots to

secure the entire assembly to the concrete foundation.

For Type III (heavy-duty pedestals), provide square bases designed for bolt-on mounting of a

Type III pedestal shaft. Fabricate the top of the transformer base with four equally spaced holes

or slots for an 11 inch bolt circle to attach the pedestal shaft. Size the holes or slots to

accommodate 1 inch diameter machine bolts. Fabricate the bottom of the transformer base with

four equally spaced holes or slots for a 12 inch bolt circle to secure the entire assembly to the

concrete foundation. Size the holes or slots to accommodate 1 inch diameter anchor bolts.

Provide the following mounting hardware for heavy-duty pedestals:

Version 24.3

print date: 08/05/26

This is the opportunity summary page. It provides an overview of this opportunity and a preview of the attached documentation.

Daily notification on new contract opportunities

With GovernmentContracts, you can:

Find more opportunities and win more business
Receive daily alerts for all new bid opportunities
Get contract opportunities matched to your business

ONE WEEK FREE TRIAL

52073.12.301, ETC. - CURB RAMPS, PEDESTRIAN SIGNALS, & PAVEMENT MARKINGS AT VARIOUS INTERSECTIONS IN CATAWBA & GASTON COS. Addendum 1

Attachment Preview

See also