NWWP9240210008 Question and Answers.docx

NWWP9240210008 Question and Answers

1. Is the foundation based on normal soil?

a. Yes

2. What is the model number of the antennas they want to install on the tower? Size, weight etc.

a. Antennas to be install nine total, specs attached.

3 - Yagi antenna’s –Model: PC804N 3 - Omni directional antenna – Model: SG401_SF1SNM 1 - Comrod Marine Antenna – Model: AV7M 1 - TV antenna – Model: Antop AT-415B 1 – GPS antenna – Model: Bullet III All nine of the antenna will go on the 50’ tower directly behind the WFO.

One of the 30’ towers will have RSOIS equipment install on it.

3. Is this 30’ or 36’, and can you tell me what UCS stands for?

a. 30’, USC removed.

4. Do we have to remove the old towers?

a. No, they have already been removed.

5. Please confirm “gravity block foundation” is cast in place concrete block on grade. Stub base to be case in concrete?

a. NA, new foundations are not required now.

6. Has a geotech analysis been performed at each tower location? If so, please provide. Required for PE to approve design.

a. NA new foundations are not required now.

7. Will the contractor be required to trench to the new towers for the installation of utilities (power and data). If so, can you clarify the size, type and distance from the source to the new tower locations (a drawing).

a. NA, new foundations are not required now, current foundation has hookups.

8. Are there any drawings available for this project?

a. Unsure what type of drawing they need.

9. I’m not familiar with the term, UCS tower. Is that a type of tower?

a. NA, removed.

10. The specify TIA-222-G standard, but do not provide a Wind Rating for the area where the towers will be installed.

a. My understanding of TIA-222-G is for calculating wind ratings

11. Our normal self-supporting tower is a 4-legged tower with a platform at the top of the tower on which antennas are mounted. I gather that isn’t what this is. Do you have any pictures of similar towers you can send to me?

a. Photo’s provided

12. Other than climbing ladder and cable safety climb no other attachments are specified. We would normally see perhaps a coax ladder, obstruction lights, lightning air terminals with ground conductors specified.

a. The only additional items needed are lightning air terminals to both towers.

13. Will a Geotech soil analysis be performed so that a foundation can be designed and PE stamped?

a. NA

14. Is the 50 ft tower indeed a 5ft base with (2) 20 ft sections and (1) 5 ft top section? Engineering value to reduce mfg cost would be (1) 10 ft section and (2) 20 ft sections

a. See photos in SOW

15. Please clarify the height of the (2) 30’ towers.

a. 1 30 foot tower, not 2.

16. Typically monolithic slabs for self-supporting towers are 1 ft above grade so this will have an impact on the sections of the tower. Please define the final elevation of the towers.

a. addressed in SOW