12 March 2015 ~ 0 Comments

Portal Update

If you happen to be near 4th and Harrison streets you will notice the progress on the portal. The ramp structure houses the entrance and exit to the Central Subway tunnels.

The portal's roof slab ends in a crescent.

The portal’s roof slab ends in a crescent.

The portal takes shape as the workers build the walls.

Workers build the walls.

Metal reinforcement (rebar) sticks out from the top of the recently poured cement sides.

Metal reinforcement (rebar) sticks out from the top of the recently poured cement sides.

The crew use basket cranes to work on the sides of the portal.

The construction workers use basket cranes to access the upper sides of the portal.

One traffic lane on 4th Street, between Harrison and Bryant, recently reopened to traffic.

The crew prepares to restore the roadway.

The crew prepares to restore the roadway.

Restoration of one lane of the roadway was completed yesterday.

Restoration of one lane of the roadway was completed yesterday.

The portal structure is expected to be completed by May.

Weekly updates of construction progress are posted to this blog on Fridays.

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