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Exhibit "A" <br /> SCOPE OF WORK <br /> Objective: <br /> The objective of this contract is to provide engineering services to the City of Everett (City) with <br /> the goal of removing the existing Screen House Bridge at the Chaplain Lake Dam and providing <br /> a new access to the Building's rooftop via construction of a new 4-foot Pedestrian Bridge or a <br /> stairwell built on the side of the Building. <br /> Background: <br /> The Screen House Bridge was built in 1966 and is located on the south side of the Lake Chaplain <br /> Dam. The 2-span Bridge is 90-feet long (45':45'), and is 20-feet wide. <br /> The Bridge is oriented South to North where the Chaplain Lake is on the north end of the Bridge <br /> and the Screen House is on its southern end. The Bridge's north abutment is constructed on top <br /> of the Dam over a spread footing and its south abutment is constructed on the northern wall of <br /> the Screen House. The interior pier of the Bridge is composed of four 22-inch circular concrete <br /> columns resting on a strip footing. <br /> One important feature of this Bridge is that it is built over two 51-inch steel pipelines that convey <br /> the Lake Chaplain water to the Screen House. These pipelines are below ground and pass in <br /> between the columns of the interior bent. <br /> Preliminary observations reveal that the Bridge is seismically vulnerable under an AASHTO <br /> design earthquake event. One major vulnerability of this Bridge is its inadequate seat-width of its <br /> simply-supported precast girders at all of its piers and their associated risk for detachment and <br /> collapse under a design earthquake event. <br /> Per our understanding, the City and Water Filtration Plant (WFP) Authority desire to remove the <br /> existing seismically vulnerable vehicular bridge and re-establish the access to the rooftop of the <br /> Screenhouse building via construction of a new 4-foot Pedestrian Bridge at the existing bridge's <br /> alignment or construction of a stairwell on the side of the building. <br /> On January 4, 2013,TranTech's team performed a routine bridge inspection site visit. Following <br /> this site visit, the City and WFP authorities provided TranTech's team with all of the existing <br /> information available on the Screenhouse Bridge. <br /> In the following sections, work elements associated with a feasibility study regarding the two <br /> aforementioned building-access alternatives and the preparation of the construction documents <br /> for the chosen alternative is described in further detail: <br />