Amendment_00001_18-PAC127_Rebuild_Marcus_Hook_Range_Lights.doc

Rebuild Marcus Hook Range Lights USCG AIDS TO Navigation Team Philadelphia

Question:

Is a hydrographic survey of the area available?

Answer:

Hydrographic data is attached.

Question:

Spec section 01 18 17, "Environmental Permits" says no work shall be performed between March 16 through August 31 but NMFS Biological Opinion E-mail says March 15 through July 31. Which is correct? And does the no work restriction apply to all work or just in-water work?

Answer:

No entrapment and excavation activities (in-water work) from 15 March through 31 July.

Question:

3. Regarding Spec section 01 18 13, "Utility Permits," can you tell us which utility provides service for the existing range lights?

Answer (two part A/B)

3. A) For the Front Range, the electrical service will be removed.

Service provider: Delmarva Power

Meter No. 1ND342269155

Location: 39 46’ 30.3” N; 75 28’ 53.6’ W

3. B) For the Rear Range, the electrical service will be maintained.

Service provider: Delmarva Power Meter No. Not Available Location: 39 45’ 43.4” N; 75 30’ 10.7” W Delmarva Power Customer Service phone: 1-800-375-7117

Question:

Is there a spec for the davits shown on S-01, other than what is called for in note 12?

Answer:

No, the contractor needs to obtain an off-the-shelf davit with the capacity and reach indicated on the sheet S01.

Question:

Is there a spec for the fiberglass equipment housings shown on S-01, other than what is called for in note 11?

Answer:

The requirements are provided in note 11 on sheet S-01. The contractor shall obtain a shelter from a manufacturer that complies with these requirements.

Question:

Question ref Spec section 31 62 19.02, "Marine Fiberglass Caisson Jackets:"

3. The spec calls for pumping epoxy grout from the bottom, but the portion of the jacket within the 60" casing will not be accessible. Will it be acceptable to install and grout the jacket prior to installing the caisson?

Answer:

Yes. The fiberglass jacket can be pre-installed onto the caisson prior to the caisson installation as long as the minimum embedment depth, per the contract documents (from the riverbed to bottom of the fiberglass jacket) is maintained.