5N, Approve a Contract with Kimley Horn, Inc., for Old Highway 10 Bridge Design

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�I— Kimley-Horn �11r. Ter�y Maurer, December 7, 20J 1, Page 2 �.; � .__ and Associates, Inc, assist the City in acquiring the necessary permits for the replacement of the existing structure. While the bridge does not meet the deficiency status to qualify for construction funding at this time, tl�e City is proceedi��g with bridge replacement plans and permit caordination. Bridge bond fi�nd application preparation, project bidding, and construction services will be provided after funding requirements are met at some point in the future. We understand the City has completed a geotechnical investigation af the subsur�ace soiis within the project under a separate contract. We understand the irnprovements will require permitting through multiple review agencies as identified in the Scope of Services below. Scope of Services Kimley-Horn will provide the services specifically set forth below. Task 1: Prelirrtinary Engineering To supplement previous topographic survey data, a Kimley-Horn subconsultant will conduct a topographic survey of the stream upstream and downstream of the exis#ing bridge for hydraulic modeling purposes. We will use the cross section data to update the existing hydraulic model for the Lake Josephine Discharge Channel, which we have assumed will be available from the Minnesota Department of Natural Resources (MnDNR). We will perform a preliminary hydraulic analysis to identify an appropriate structure or series of structures to be constructed without raising the Base Flood Elevation of the Lake Josephine Discharge Channel. We have assumed the hydraulic modeling will identify a series of two box cuiverts to repiace the existing bridge with minimal impact to the existing floodway and floodplaias. We will conduct a wetland delineation, using Routine Level 1 Wetland Delineation Methods to estimate the jurisdictional wetland boundaries within the site. We will identi�y the agencies with jurisdiction over these wetland(s) [we have assumed the Army Corp of Engineers (CoE), Rice Creek Watershed District (RCWD} and MnDNR]. The Level 1 delineation will inch�de docmnentation of the soils; historic aerial phatography; topography; and National Wetlands tnventory (NWI), MnDNR Public Waters Inventory (PWI), and RCWD wetland inventory boundaries. A graphic documenting the findings, as required by the agencies, will be prepared. A Leve12 delineation (on-site) would be conducted in the spring of 2012 to flag the identified wetland boundaries. The on-site review will evaluate existing wetlands which will be flagged and GPS surveyed (up to 40 survey points). Flags will be placed along the wetland edge within potential