Renovation of a mixed-use development in Washington, District of Columbia. Completed plans call for the renovation of a municipal facility.

This project is for the US Capitol Power Plant G- Tunnel upgrades to the expansion joints on high-pressure steam and low-pressure condensate lines. The G Tunnel was installed in the 1950's to extend chilled water and steam services to the facilities on Capitol Hill. The G-Tunnel has had a series of improvements and renovations since 2006. The scope includes the following CLINS: The Base: -Selective demolition of existing mechanical expansion joints including pipe, structural supports and appurtenances to remove the existing G tunnel expansion joints on high-pressure steam and low-pressure condensate lines between Stations 0+00 and 6+50. -Replacement of G tunnel expansion joints and structural supports between Stations0+00 and 6+50 to allow for thermal expansion in the pipe. Expansion joint sizes include4", 8", and 10" externally pressurized bellows assemblies. -Demolition, including the pipe and appurtenances to remove the entirety of the existing G tunnel high-pressure condensate system between Stations 0+00 and approximately3+25. -Installation of a new high-pressure condensate system between Stations 0+00 and approximately 3+25. -Replacement of existing steam traps and addition of new steam traps between 0+00 and6+50. -Selective demolition, including pipe, pipe supports and appurtenances to remove segments of the existing G tunnel high-pressure steam lines in order to install a main steam line crossover to allow operation from either main to each branch between Stations 0+00 and 0+50 Value: $ 4,000,000 - $ 6,000,000 Contact the GC bidder(s) for access to project documents. *The value for this project is based on a financial range. The value is listed as the highest possible cost from the range provided by a stakeholder or official project document. *The bid list for this project may be incomplete. If you have been invited to bid on this project by the owner, please notify our editorial staff at contentcase@constructconnect.com.