2022 MSP Tunnel Grouting

The Work of this Project includes, but is not limited to the following 1. Tunnel grouting and crack sealing in the MSP tunnel. 2. CONTRACTOR shall clean and remove material in the tunnel that will obscure observation of grouting and crack sealing operations. 3. CONTRACTOR shall grout, and crack seal specified locations in the tunnel on Track 2, the south bound LRT tunnel. 4. CONTRACTOR may use water supplied by the COUNCIL. This water will be supplied by a hose bib inside of a pump room just outside of the tunnel south entrance. Contractor shall gain access to the pump room and coordinate use of the hose connection with the CAR. 5. CONTRACTOR shall clean and sweep tunnel clear of debris at completion of work and before train use. 6. CONTRACTOR will have access to store materials and equipment in cross passage 1 and 2 prior to the 1st shutdown. Access will be given between Midnight and 3 AM with prior authorization. Metro Transit will supply a hi-rail vehicle to help transport materials and equipment. 7. CONTRACTOR is responsible for supplying hi-rail vehicles for all their work. 8. CONTRACTOR will must obtain rail insurance.

Dam/Tunnel, New Construction.

Division 02 -	Existing Conditions, Subsurface Investigation.
Division 31 -	Earthwork, Site Clearing, Grading, Excavation and Fill, Subgrade Preparation, Excavation, Shoring, Tunneling and Mining, Tunnel Excavation.
Division 35 -	Waterway and Marine Construction, Dam Construction and Equipment.