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The Hills at Round Lake

Camas, Washington

Stream / Wetlands Crossing

Owner:

The Holt Group

Engineer:

Olson Engineering

Contractor:

Schram's Excavating

Installation:

August 2012

Recently recognized in Money Magazine as one of the top 100 best places to live in America, Camas is located on the northern bank of the Columbia River with a population of approximately 17,400. The downtown area has worked to revitalize its economy and attract businesses while the residential areas are also expanding. The Hills at Round Lake, in particular, is a 9.71 acre residential subdivision with 69 lots. With a stream/wetlands area situated at the entrance to the new subdivision, a vehicular bridge was needed to provide access for future residents.

The project owner, The Holt Group, was in search of a signature look for the subdivision entrance and contacted Contech Engineered Solutions for help. It was imperative that the utilities were able to be buried in the fill above the structure and that the structure be cost effective, with City officials preferring a buried structure over a conventional bridge. A 34’-7” x 11’-4” SUPER-SPAN™, 66’ in length, met the needs of both the Owner and the City. Buried structures not only reduce future maintenance costs but also lower life cycle costs since there are no bridge deck or joints at the deck/roadway interface.

“I was very happy with the choice to use a SUPER-SPAN as the stream crossing on this project,” stated Peter Tuck, P.E., Principal with Olson Engineering. “During the feasibility and design stages, Contech’s staff was extremely helpful and provided all information needed to make the project a reality. SUPER-SPAN was not only the most cost effective solution reviewed, but it also met the stringent aesthetic and environmental requirements. It was a pleasure working with the Contech team, and I look forward to joining forces again on future projects.”

Preparation of the site and the installation and backfilling of the structure was completed in just 30 days.

Technical Description:

• Span: 34’-7"
• Rise: 11’-4"
• Length: 66’
• Product: SUPER-SPAN™

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