Second bridge on Littlerock Road will undergo repair for scour, cracking

lpemberton@theolympian.comMarch 11, 2014 

Repair work is set to begin right away on a second small bridge on Littlerock Road Southwest, south of Tumwater, according to a news release issued Tuesday morning by Thurston County Public Works.

The structure between 113th Avenue Southwest and 110th Avenue Southwest is known as the L-5 Bridge, and it will remain open during the repairs, officials say. The repairs are scheduled to take about two weeks, and traffic may be restricted to one lane at times, the news release stated. 

The L-5 Bridge is just south of the L-4 Bridge over Salmon Creek that was closed on Jan. 27 after crews found scour under the center pier.

“Earlier, the L-4 Bridge was closed due to scouring around support piers and significant cracking on the piers,” a news release stated. “After extensive study and deliberation, it was found that the public safety risk at L-4 was too high, due to the potential collapse of the bridge, to allow it to stay open.”

The bridges were built at the same time -- during the 1950s -- and are the same design.

“Engineering staff completed an inspection and found some of the same issues, scour and cracking, that are on the L-4 Bridge,” the news release stated. “However the scour (basically, wash out around a support pier) and the cracking are not to the same severity as L-4.”

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