Install Water Meters and Vaults Base Wide, NAS Fallon, NV

Prime Contractor: Jacob Construction & Design, Inc.

Contract Number: N62473-16-D-0412

Contract Value: $530,618.00

Contract Award Date: 09/29/2016

Final Completion Date: 07/11/2017

Agency: NFEC Southwest, FEAD 29 Palms (NAS Fallon, NV)

Project Goal

Jacob Construction & Design, Inc. installed and tied in water meters, vaults, valves, and traffic rated lids at various locations throughout NAS Fallon, NV.

Description

For this project, Jacob Construction & Design was required to install numerous water meters, vaults, and valves on the main line at various locations on the base to help gather the required water usage data. The newly installed AMI water meters would eventually be connected to the existing Data Acquisition Server (DAS) located in Building 455 and that data automatically sent to NAVFACSW for efforts in improved metering, management and future conservation. This project involved careful and constant coordination with the government as construction impacted different entities throughout the base. After securing dig permits and performing utility locates via pot holing & X-raying, JCD with our teaming subcontractor proceeded to excavate the various sites. During excavation, all configuration for valves, vaults, meters and other necessary appurtenances were being designed and pre-fabricated/assembled at a workshop off site. Once all sites were excavated and base prepared, all vaults with meter assembly intact were brought in and dropped into excavated holes. Once all assemblies successfully passed leak tests and outages could be coordinated, tie-ins to main lines were performed. This project also involved interior meter installations in various mechanical rooms throughout the base. A total of 13 locations received meter and valve assemblies to help the base gain more control over water management.

Project Involved

  • JCD had to work around inconsistencies in provided as-built drawings. Two locations required extended potholing and added coordination to identify location of buried utilities.
  • One location had to be canceled from scope due to unforeseen buried utilities.
  • Hangar location had no working isolation valve and outage to perform tie-in impacted two adjacent hangers.
  • During course of project performance, JCD discovered two leaks in existing water main that were quickly repaired by base’s maintenance contractor.
  • Excavated site for 10” Mag meter tie-in was full of water from high groundwater level due to rainfall and had to be displaced via pump prior to installing double stacked vault and meter assembly.
  • As there was only one shutoff valve for 20+ buildings (including 5-Finger Residence and clinic), shut off for 9 of JCD’s tie-ins had to be carefully coordinated to minimize impact on tenants.