Special Reports

Bridge Update: Dec. 5

Construction this week on the new Tacoma Narrows bridge:

The Jackson Avenue onramp to westbound Highway 16 will be closed Thursday night and early Friday. Crews will be cutting a trench across the highway to install new drainage. Estimated closure time is from 9 p.m. Thursday to 7 a.m. Friday.

Crews will be putting chain-link fencing around stormwater infiltration ponds on the Gig Harbor side and continuing landscaping work throughout the project.

Anchorages: On the Tacoma side, crews are preparing to put a roof over the massive structure. This week they’ll be pouring concrete “grout pads” on the lateral walls in preparation for setting steel girders that will reach from side to side.

They’ll also continue pouring concrete on the anchorage’s back wall.

On the Gig Harbor side, anchorage crews will make concrete pours on interior walls Monday and Wednesday.

Towers: The Gig Harbor tower legs each will climb another 171/2 feet this week, with pours Wednesday and Friday. The south leg of the Tacoma tower, just slightly behind, will climb 171/2 feet Saturday.

Meanwhile, crews assigned to the cross struts connecting the tower legs will spend the week framing concrete forms and getting ready to place rebar on both towers.

More yellow packages of cable wire being deposited on the new roadway east of the Tacoma anchorage will be trucked to the site this week. Deliveries will continue throughout the month.

GENERAL: Crews will work on the interior of the new toll operations building near the 24th Street overpass on the Gig Harbor side and put siding and a roof on a portion of the new bridge maintenance facility beneath the existing bridge on the Tacoma side. What are those big strange-looking steel gizmos to the right as you approach the bridge from Gig Harbor?

Those are pieces of roof structure for the new toll plaza canopy. Crews will erect steel posts, then use a crane to lift those prefabricated pieces on top. When finished, the canopy will be 112 feet 9 inches long and cover all six toll booths.

Rob Carson, The News Tribune