KTR_Questions_Drop_Arms.pdf

FA489719BA011 – Construct Vehicle Barrier KTR Question

(1) See note 7 on G2.0 . Please provide a building lay out plan for building 206 showing location of Room 158 In relation to location found on G2.0 that contractor is to enter building, and desired conduit routing.

Response:

• Layout drawing for building to be provided and indicate general location.

• Regarding Key Note 7, power to be routed from the appropriate panel in Room 158 to the exterior of the building. The lockable shut-off panel shall be installed on the exterior of the building at the location generally indicated on Drawing G2.0.

• Routing may be above ceiling.

(2) See note 7 on G3.0. Please provide a building lay out plan for building 1363 showing location of Mass Briefing room to location found on G3.0 that contractor is to enter building, and desired conduit routing.

Response:

• Layout drawing for building to be provided and indicate general location.

• Regarding Key Note 7, power to be routed from the appropriate panel in Mass Briefing

Room to the exterior of the building. The lockable shut-off panel shall be installed on the exterior of the building at the location generally indicated on Drawing G3.0, on the Northeast wall of the structure, outside of the perimeter wall. Underground service to be routed on the outside of the perimeter wall to the shutoff.

(3) Please confirm Contractor is not removing the cross road bollards seen on drawing G5.0 Response:

• Confirmed. Existing bollards are removable configuration. Existing, in-ground sockets for bollard installation and storage shall not be disturbed.

(4) See drawing G4.0 Key Note 7 Please provide building lay plan showing room location Contractor is to tie power for new gates into.

Response:

• On Drawing G4.0, Key Note 7 refers to the serpentine gates. These shall be removed.

• Layout drawing for building to be provided and indicate general location.

• Regarding Key Note 6, the lockable shut-off panel shall be installed on the exterior of the building, as indicated on the drawing. Interior service to be routed above ceiling.

(5) Please provide electrical specs so contractor can propose correct type and size of wire for feed from buildings to gates and lights.

Response:

• Per Note 5, on Drawing G2.0, G3.0 and Note 6 on Drawing G4.0, Contractor is responsible for shop drawings for all installations.

• Correct type and size of wire shall be compliant with NFPA 70 and NEC 2017.

(6) Document state contractor to contract a licensed surveyor to lay out each site. Please provide coordinate points on each site and CAD drawing for each site.

Response:

• Survey will not be required for this contract, however sufficient detail regarding as-built installation shall be required.

• CAD drawings will be provided to the Contractor for the As-builts.

(7) Per Document contractor to have on site safety officer and Environmental Manager. Is Contractor QC also required? Also Can Site superintendent fill all positions on this project as long as he has proper training and experience. Please advise Response:

• A qualified person may satisfy multiple roles.

(8) Will winter shut down period be allowed during adverse winter season? Please advise

• As the contract duration has been set at 365 calendar days, contract time will not be suspended due to inclement weather.

• Should the contractor elect to suspend work, all active work sites shall be reinstated for unrestricted use by the Air Force. Occasional maintenance through the shut-down period may be required.

(9) Section 010000 1.1.A states work is to be completed in (phases). There is an approximate total of 3,334 sf of paving required between all the sites. The four local paving companies we have reached out to are not interested in performing this work if it is performed in 4 separate phases, they say it’s too small. Would it be allowable to provide steel plates, or infill with temporary gravel or slurry at the installed barriers, allowing all 4 locations to be paved at one time?

Response:

• It is imperative that any/all loose debris (FOD) be contained at the work sites. Asphalt paving may be deferred under the following conditions:

o Travel way excavations must be filled to finished surface elevation.

o Steel plates must be placed and anchored in place and extend a minimum of two (2) feet beyond the exposed gravel surface.

o Electrical trenches and other non-asphalt areas shall be completed prior to moving to the next site.

o Temporary measures shall be vigilantly monitored and maintained. Debris of any kind shall be cleaned up immediately and corrective measures implemented expeditiously.

o Should it be determined by the Government that temporary measures are unsuccessful, contractor shall have permanent surfacing installed immediately, at no additional cost.

(10) Is there a disposal area on the base for clean over ex material? Please advise.

• No disposal areas are available on base.

(11) What is the required penetration rating for the barriers? The last and most recent barrier solicitation had a P-2 preferred but P-3 was acceptable. We assume that is the case for this solicitation. Please advise.

Response:

• Building 206: P-3

• Building 261: P-2

• Building 1363: P-3

• Building 1345: P-3

(12) Per the Summary of work, section 1.1 B 4, does the barrier used have to be listed on the most current DOD approved barrier list at the time of bid?

Response:

• Gates listed on the DOD list are preferable, however, alternate gates will be acceptable provided that they meet the K12/M50 standard and the P-rating as listed in Q&A 11 response.

(13) In the likely event that rock is encountered, will additional funding be available since the contractor has no way of assuming rock excavation quantities?

Response:

• Revised SOW dates 08/20/2019 allows for approximately 35 cubic yards (as broken out by barrier). Contractor will be responsible to include this into their bid. If any additional excavation needs to occur, the contractor will contact the Contracting Officer immediately and not proceed forward until resolution. Any additional excavation will be treated as a Differing Site Condition in accordance with FAR 52.236-2.

(14) Please provide distance from panel room in building 206 to location Power to enter building shown on G2.0.

Response:

• Layout drawing for building to be provided and indicate general location. The bidder is responsible for estimating distance / quantity.

(15) Please provide distance from panel location in building 1363 to location shown on G3.0 that contractor is to enter building.

Response:

(16) Please provide distance from panel location in building 1345 to location shown on G4.0 that contractor is to enter building.

Response:

(17) Please call out routing for electrical conduit in all 3 buildings over head or underground please advise.

• Please see Q&A 1, 2, and 4.

(18) Electrical Panels in building 206 When on walk it looks like there is not enough room for a 208 volt switch in either electrical panel. Please advise.

Response:

• Sufficient spare breakers exist in the panels.

• The lockable panel with the shut-off will be installed on the exterior of the building.

(19) Please extend bid date to allow for one full week after the last amendment is released.

• Please refer to amendment FA489719BA0110002 posted on FBO to reflect the extended date to 30 August at 2:00 pm.

(20) What is cutoff date for RFI’s

• Cutoff date for RFI’s is 8/15/19

(21) The SOW document states that “the vehicle barrier must be on the most current Department of

Defense (DoD) Anti-Ram Vehicle Barrier List.” There is only one K12 drop arm barrier that is on the DOD Anti-Ram Vehicle Barrier List that can meet the 20’ clear opening width requirement.

This one barrier is an above ground, bolt down drop arm barrier. Please confirm there is only one drop arm barrier that meets the requirements and is allowed to be installed for this project.

Response:

• Gates listed on the DOD list are preferable, however, alternate gates will be acceptable provided that they meet the K12/M50 standard and the P-rating as listed in Q&A 11 response.

(22) Do all four (4) drop arm barriers need to be from the same manufacture and the same type of barrier?

• To the greatest extent possible

(23) Crash rated barriers have Department of Defense penetration rating at L3, L2, or L1. ASTM penetration rating are P1, P2 or P3. What is the penetration rating requirement for these drop arm barriers?

Response:

• Building 206: P-3

• Building 261: P-2

• Building 1363: P-3

• Building 1345: P-3

(24) What is the crash rating and penetration rating of the vehicle rated bollards that are to fill the gaps between the new barrier and the preplaced fencing?

Response:

• The Bollards should match the rating of the associated gate.

o Building 206: P-3 o Building 261: P-2 o Building 1363: P-3 o Building 1345: P-3

(25) Please verify that the keypad for opening the drop arm barrier on the inbound and outbound are the only controls for the drop arm barrier.

• Confirmed. Means for manual operation are required in case of power outage.

(26) Will the drop arm barrier close after a vehicle has gone through the gate using a free exit loop?

• No. Gate closure shall be accomplished via keypad.

(27) Please verify that the drop arm barrier will not have any traffic warning lights.

• Confirmed.

(28) What are the specification and requirements for the two keypads for the inbound and outbound operation of the drop arm barriers?

Response:

• Keypads shall be provided in a weather proof enclosure.

• Keypad equipment shall be fully compatible with the associated gate equipment.

(29) In the event of a power loss, will the drop arm barrier require a battery back-up system for operation?

• No. Means for manual operation are required in case of power outage.

(30) In the event of a power loss, will the drop arm barrier be powered by the air force base emergency power system?

• If the associated building is powered by emergency power, the gate will also be powered.

(31) In the event of a power loss, will the drop arm barrier require a manual hand crank for opening and closing?

• Yes

(32) In the SOW for 1.5 Submittals, they are looking for “stamped foundation drawings”. Barrier on the DoD barrier list are pre-approved designed barriers and any stamped foundations will need to come for the barrier manufacture. Engineered stamped foundations from the barrier manufactures are always additional cost. Please verify if we need engineered stamped drawings from the barrier manufacture so we can price accordingly?

• Confirmed. Engineer stamped foundation drawings are required.

(33) Can you please include the planned operating procedures or environment; level of use (i.e., peak traffic flows and frequency of operation); and including the expected operational availability/Mean Time Between Failures (MTBF)?

• It is anticipated that the gates will be opened/closed on a per vehicle basis.