USNO_Sequencing_Narrative.pdf

USNO Sequencing Narrative

All sites:

It will be the responsibility of the Contractor to protect all surfaces, features and utilities to remain throughout the construction activity. At the completion of the project, the site shall be left in the same or better condition than prior to the start of the project. A pre-construction photo log of conditions and defects shall be submitted as record documentation of existing site conditions. The Contracting Officer has final approval and acceptance of any areas disturbed by the construction activity.

Contractor must submit proposed laydown area for approval prior to ordering materials.

o It is recommended to use the field behind Building h as much as possible throughout construction.

o Contractor must submit layouts for construction and tree protection fencing; erosion control measures; construction facilities such as dumpsters and toilets; temporary utilities; temporary security measures; temporary pedestrian walkways including ramps and stairs; ground protection; signage; and other temporary facilities. Layouts must be approved 30 days in advance of moving to that zone.

o Contractor must submit shop drawings and receive approval prior to ordering materials. Contractor must prepare detail drawings for the following:

Paving protection.

Curb protection.

Protection for existing adjacent construction to remain.

Tree well and stabilized turf panel protection.

Temporary ramps and walkways.

Signage Temporary gates and closure panels.

Contractor must provide acknowledgement and comply with security screening criteria for each site and submit plan to minimize delays due to additional screening. Contractor must account for delivery of, including but not limited to, equipment, tools, materials, and personnel prior to arrival at construction site.

Remote site screening requirement prior to bringing equipment onsite.

Contractor must install electric utilities at the beginning of construction to service proposed buildings.

Typical site sequence:

o Installation of temporary security and erosion control measures o Demolition, removal, and disposal/salvaging of materials o Installation of underground piping o Installation of surface improvements o Stabilization and restoration of disturbed areas

Building u construction must precede Building c, Building d, Building f, Building g, Building h, and Building j construction.

Building 16 improvements and Building p construction must precede Building m construction.

Building e and Building f construction may not take place at the same time.

Building f and Building g construction may not take place at the same time.

Building m and Building k construction may not take place at the same time.

Building h and Building p construction may not take place at the same time.

Building e construction must precede Building a and Building b construction.

Building d construction must precede Building b and Building c construction.

Booths

New booth to be constructed adjacent to existing booth. The existing booth will remain in operation during construction. Contractor must limit utility outages and maintain vehicular access routes to booth, vehicular barriers, and gate.

Contractor must coordinate with the COR and USSS personnel to ensure operations are not impeded during construction.

Contractor must execute initial start up of new booth and test utility components prior to demolishing existing booth.

Upon completion of each booth and acceptance from NAVFAC, Contractor must demolish existing structures and temporary security measures prior to relocating to another site.

Gillis and Main Gates (Buildings h and p)

The gate will not remain in operation during construction. Contractor must coordinate with the COR and USSS for alternate traffic routes for the gate prior to start of work.

Contractor must shut down entire gate prior to construction commencing.

Contractor must install temporary security fencing prior to construction commencing.

Contractor must execute initial startup of new gates and barriers and its associated features and test utility components in accordance with specification requirements upon completion of improvements. Contractor must receive approval of completion prior to relocating to another site.

Temporary posts may be required during construction of Building h, Building p, Building m, Building e, and Building f.