Arlington County Government Sealed Solicitation
Title: 24-DES-ITBPW-309 North Glebe ROAD INTELLIGENT TRANSPORTATION SYSTEMS (ITS) IMPROVEMENTS
Deadline: 9/28/2023 1:00 PM (UTC-05:00) Eastern Time (US & Canada)
Status: Awarded
Solicitation Number: 24-DES-ITBPW-309
Description: The County is seeking a qualified contractor for the construction services of the North Glebe Road Intelligent Transportation Systems (ITS) Improvements (the “Project”). The project will consist of the replacement of the traffic signal at the intersection of N Glebe Rd./Chain Bridge Road. The project will also install a reversible lane control system to improve safety for vehicles approaching and traveling over the bridge. Work will include construction of minor pedestrian ramp improvements, pavement marking and signing, erosion, and sediment controls, signalization and lane control upgrades, integration with DDOT signals, utility work, and all other related incidental work described and required in the contract documents.
Pre-Bid Meeting Date: 8/25/2023 11:30 AM
Pre-Bid Meeting Details: Please sign up if you plan to attend the pre-bid meeting.
Documents:
Addition 1
Posted: 8/25/2023
Type of Addition: 24-DES-ITBPW-309 Meeting Notes and Sign-in sheet
Overview: Meeting minutes for the Nonmandatory Prebid Conference and sign-in sheet.
Documents:
Addition 2
Posted: 9/12/2023
Type of Addition: Addendum No. 1
Overview: Addendum No. 1 removes Exhibit B and replaces Data Security and Protection clause with the Confidential Information clause.
Documents:
Addition 3
Posted: 9/29/2023
Type of Addition: In Review
Overview: Bid Tabulation attached
Documents:
Addition 4
Posted: 11/13/2023
Type of Addition: Notice of Award Information
Documents:
Question 1
Posted: 8/25/2023
Question: Due to factory minimum orders, would the County consider a smooth, tapered pole in place of the octaflute pole?
Response: The project proposes the installation of non-ornamental mast arm signal poles which are round tapered steel poles. For details, please refer to Arlington County Traffic Signal Standards, Drawing No. 62-01, and Arlington County Traffic Signal Specifications, Section 13162.
Question 2
Posted: 8/31/2023
Question: Please confirm that an octaflute is required for Pole A for mounting a ped signal, CCTV, and Yagi antenna. There is no luminaire. Thank you.
Response: Contractors are instructed to develop their bid for proposed Pole A based on 30’ (NOT 25’) Aluminum Octaflute pole with no luminaire but with Pedestrian Signal, CCTV and Yagi antenna mounted on it. Refer to Section 14080 of Arlington County’s Lighting Specifications and for pole details.
Question 3
Posted: 8/31/2023
Question: Per DDOT Specific Requirements listed on page 116, the work shall follow all DDOT rules and regulations for the closure of lanes and sidewalks. Please confirm the Contractor will be required to produce Traffic Control Plans in order to obtain DDOT Public Space Permits.
Response: The Contractor will be required to prepare and obtain any required DDOT Public Space Permits for the closure of lanes or sidewalks in DDOT jurisdiction.
Question 4
Posted: 8/31/2023
Question: Please confirm that only IMSA certified technicians will be allowed to access the cabinet.
Response: The Contractor awarded under this contract shall have traffic signal technicians who have obtained an IMSA Level II Traffic Signal Certification to be allowed access to the cabinet and other signal infrastructures. Refer to Arlington County Traffic Signal Specifications, Section 13160, Traffic Signal Installation for details. Technicians without certifications may work beneath supervision from those who have the certification.
Question 5
Posted: 8/31/2023
Question: Per the work hours listed on page 99, between 4 to 5 hours are allowed on this contract. No nighttime operations are allowed. Please reconsider the restricted working hours listed. There are several activities including foundation installation, conduit boring, etc. that cannot be completed and secured within those limited timeframes.
Response: Considering the change in traffic pattern post AM and PM peak period and the proposed MOT plan, normal working hours are limited to restricted hours as outlined in the contract documents. Because the VDOT permit is granted based on the work hours in the Contract documents, if the Contractor would like to propose changes to the approved MOT, this would need to be a proposal from the Contractor.
Question 6
Posted: 8/31/2023
Question: Please confirm how the stipulated price items listed within the bid form (5 of 8) were determined.
Response: The unit prices were obtained from the average of bids received in the corresponding items on County projects.
Question 7
Posted: 8/31/2023
Question: Please confirm if bench testing is allowed at the contractor’s shop given the same requirements are followed.
Response: All equipment bench testing and certifications from the manufacturer/vendor are still required prior to County testing. As outlined in the Special Conditions, additional bench testing shall be conducted at Arlington County Signal Shop to ensure the equipment communicates adequately within the County’s network.
Question 8
Posted: 8/31/2023
Question: Per the System Acceptance Testing specification starting on page 102, any failure that occurs in the system during the testing period will cause the testing period to restart. Please ID what “failures” would trigger a restart. Instead of restarting the test, would the county accept stopping the test until the identified issues are resolved, then continuing with the test period?
Response: System Acceptance Testing incorporates scenarios of bench testing as well as Field Acceptance Testing in the field, please refer to Special Conditions, Section 10 (Intelligent Transportation System Testing Requirements) for details. The requirements outlined for System Acceptance Testing stand as is. The option to pause the testing period would be acceptable depending on the severity of the failure and the County would be solely responsible for determining if an issue is resolved. This type of arrangement would be discussed and agreed upon prior to the testing period.
Question 9
Posted: 8/31/2023
Question: Please confirm that the county will handle integrating the new traffic controller and cabinet with their system.
Response: County will assist the Contractor with integrating the controller with the County’s central traffic management system, however, it is the Contractor’s responsibility to ensure all the infrastructure are installed as outlined in the contract documents.
Question 10
Posted: 8/31/2023
Question: Please confirm if the County will submit an electrical service request for the new Metered Pedestal at the location to Dominion, and that all fees are the responsibility of the county.
Response: Any and all coordination, including costs associated with it, with Dominion Energy regrading power source at the intersection will be the responsibility of the County.
Question 11
Posted: 8/31/2023
Question: • Please confirm what county owned or controlled databases will need to be accessed that will require an NDA to be executed.
Response: Please reference Addendum No. 1. Contractors are not expected to sign NDA on this project, having said that, the construction administration of the project will be conducted through web based construction management tool which is e-Builder. Refer to Arlington County General Conditions, Section B, Sub-section 15, Web Based Records Documentation for details.
Question 12
Posted: 8/31/2023
Question: Please provide Pole Height/Mast Arm Mounting Height for the LCS Pole shown on Sheet 0600.
Response: Lane-Use Control Signals (LCS) Pole is a standard non-ornamental mast arm pole with 30’ pole height and mast arm connection located 20’ above the base of the pole.
Question 13
Posted: 8/31/2023
Question: Please provide descriptions and pay item for all material/equipment to be removed, including existing poles.
Response: Refer to Section 13175, Traffic Signal Turn-On, Pickup, Removal and Maintenance for details. The cost for removal, Dispose and Salvage of existing traffic signal infrastructures after switchover shall be incorporated under Line Item 15.
Question 14
Posted: 8/31/2023
Question: Substantial Completion is 225 days after NTP. Current lead times can exceed 225 days. We request the contract time be extended to at least 365 days.
Response: After issuance of NTP, excusable, non-compensable time extension(s) will be provided appropriately in the form of Change Order(s) for justifiable contract time extension request. Contract durations outlined in the bid documents stand as is. It is the County’s intent to choose a mutually agreeable NTP date with the Contractor following award.
Posted: 8/25/2023
Type of Addition: 24-DES-ITBPW-309 Meeting Notes and Sign-in sheet
Overview: Meeting minutes for the Nonmandatory Prebid Conference and sign-in sheet.
Documents:
Posted: 9/12/2023
Type of Addition: Addendum No. 1
Overview: Addendum No. 1 removes Exhibit B and replaces Data Security and Protection clause with the Confidential Information clause.
Documents:
Posted: 9/29/2023
Type of Addition: In Review
Overview: Bid Tabulation attached
Documents:
Posted: 8/25/2023
Question: Due to factory minimum orders, would the County consider a smooth, tapered pole in place of the octaflute pole?
Response: The project proposes the installation of non-ornamental mast arm signal poles which are round tapered steel poles. For details, please refer to Arlington County Traffic Signal Standards, Drawing No. 62-01, and Arlington County Traffic Signal Specifications, Section 13162.
Posted: 8/31/2023
Question: Please confirm that an octaflute is required for Pole A for mounting a ped signal, CCTV, and Yagi antenna. There is no luminaire. Thank you.
Response: Contractors are instructed to develop their bid for proposed Pole A based on 30’ (NOT 25’) Aluminum Octaflute pole with no luminaire but with Pedestrian Signal, CCTV and Yagi antenna mounted on it. Refer to Section 14080 of Arlington County’s Lighting Specifications and for pole details.
Posted: 8/31/2023
Question: Per DDOT Specific Requirements listed on page 116, the work shall follow all DDOT rules and regulations for the closure of lanes and sidewalks. Please confirm the Contractor will be required to produce Traffic Control Plans in order to obtain DDOT Public Space Permits.
Response: The Contractor will be required to prepare and obtain any required DDOT Public Space Permits for the closure of lanes or sidewalks in DDOT jurisdiction.
Posted: 8/31/2023
Question: Please confirm that only IMSA certified technicians will be allowed to access the cabinet.
Response: The Contractor awarded under this contract shall have traffic signal technicians who have obtained an IMSA Level II Traffic Signal Certification to be allowed access to the cabinet and other signal infrastructures. Refer to Arlington County Traffic Signal Specifications, Section 13160, Traffic Signal Installation for details. Technicians without certifications may work beneath supervision from those who have the certification.
Posted: 8/31/2023
Question: Per the work hours listed on page 99, between 4 to 5 hours are allowed on this contract. No nighttime operations are allowed. Please reconsider the restricted working hours listed. There are several activities including foundation installation, conduit boring, etc. that cannot be completed and secured within those limited timeframes.
Response: Considering the change in traffic pattern post AM and PM peak period and the proposed MOT plan, normal working hours are limited to restricted hours as outlined in the contract documents. Because the VDOT permit is granted based on the work hours in the Contract documents, if the Contractor would like to propose changes to the approved MOT, this would need to be a proposal from the Contractor.
Posted: 8/31/2023
Question: Please confirm how the stipulated price items listed within the bid form (5 of 8) were determined.
Response: The unit prices were obtained from the average of bids received in the corresponding items on County projects.
Posted: 8/31/2023
Question: Please confirm if bench testing is allowed at the contractor’s shop given the same requirements are followed.
Response: All equipment bench testing and certifications from the manufacturer/vendor are still required prior to County testing. As outlined in the Special Conditions, additional bench testing shall be conducted at Arlington County Signal Shop to ensure the equipment communicates adequately within the County’s network.
Posted: 8/31/2023
Question: Per the System Acceptance Testing specification starting on page 102, any failure that occurs in the system during the testing period will cause the testing period to restart. Please ID what “failures” would trigger a restart. Instead of restarting the test, would the county accept stopping the test until the identified issues are resolved, then continuing with the test period?
Response: System Acceptance Testing incorporates scenarios of bench testing as well as Field Acceptance Testing in the field, please refer to Special Conditions, Section 10 (Intelligent Transportation System Testing Requirements) for details. The requirements outlined for System Acceptance Testing stand as is. The option to pause the testing period would be acceptable depending on the severity of the failure and the County would be solely responsible for determining if an issue is resolved. This type of arrangement would be discussed and agreed upon prior to the testing period.
Posted: 8/31/2023
Question: Please confirm that the county will handle integrating the new traffic controller and cabinet with their system.
Response: County will assist the Contractor with integrating the controller with the County’s central traffic management system, however, it is the Contractor’s responsibility to ensure all the infrastructure are installed as outlined in the contract documents.
Posted: 8/31/2023
Question: Please confirm if the County will submit an electrical service request for the new Metered Pedestal at the location to Dominion, and that all fees are the responsibility of the county.
Response: Any and all coordination, including costs associated with it, with Dominion Energy regrading power source at the intersection will be the responsibility of the County.
Posted: 8/31/2023
Question: • Please confirm what county owned or controlled databases will need to be accessed that will require an NDA to be executed.
Response: Please reference Addendum No. 1. Contractors are not expected to sign NDA on this project, having said that, the construction administration of the project will be conducted through web based construction management tool which is e-Builder. Refer to Arlington County General Conditions, Section B, Sub-section 15, Web Based Records Documentation for details.
Posted: 8/31/2023
Question: Please provide Pole Height/Mast Arm Mounting Height for the LCS Pole shown on Sheet 0600.
Response: Lane-Use Control Signals (LCS) Pole is a standard non-ornamental mast arm pole with 30’ pole height and mast arm connection located 20’ above the base of the pole.
Posted: 8/31/2023
Question: Please provide descriptions and pay item for all material/equipment to be removed, including existing poles.
Response: Refer to Section 13175, Traffic Signal Turn-On, Pickup, Removal and Maintenance for details. The cost for removal, Dispose and Salvage of existing traffic signal infrastructures after switchover shall be incorporated under Line Item 15.
Posted: 8/31/2023
Question: Substantial Completion is 225 days after NTP. Current lead times can exceed 225 days. We request the contract time be extended to at least 365 days.
Response: After issuance of NTP, excusable, non-compensable time extension(s) will be provided appropriately in the form of Change Order(s) for justifiable contract time extension request. Contract durations outlined in the bid documents stand as is. It is the County’s intent to choose a mutually agreeable NTP date with the Contractor following award.