Title
Joint committee action item approving Change Order No. 1 consisting of an increase of $27,116.45 for additions to the Phase I Engineering services for Deerfield Road Bike Path over the Des Plaines River, designated as Section No. 04-00038-03-BT.
Staff Summary
• Deerfield Road Bike Path (Des Plaines River Trail to Thornmeadow Road), Phase I Engineering Services: LCDOT Change Order No. 1
• Change Orders need to be approved by the standing committees for cumulative net increases over 10%.
• The Deerfield Road project is under contract with Christopher B. Burke Engineering, Ltd., in the amount of $122,633.19 and is being done to be eligible for federal construction funding.
• Additional engineering services are being requested based on the extra level of engineering and coordination effort required to achieve project concurrence from all of the involved regulatory and/or review agencies.
• Data Collection: The original plans were to design a bike path on embankment; however, determining that there was no site available for the proposed volume of compensatory storage, a boardwalk design with a unique “diamond pier type” foundation is being reviewed. With the new design, compensatory storage is still needed but at a much lower volume. An additional tree survey on the west side of the river to determine a suitable location for this comp storage is required.
• Floodplain Studies and Hydraulic Report: Several different alternatives from the original scope have identified that additional work is necessary to determine logical locations for compensatory storage. As the preferred alternative was chosen, a concept design for an on-site compensatory storage site needs to be developed and coordinated with LCFPD and LCSMC.
• Coordination: Based on the above project development issues and additional alternatives, substantial additional coordination is required with LCDOT, IDOT, FHWA, LCSMC, and USACOE in the form of phone conferences and formal meetings to secure overall project concurrence.
• Phase I Report: With the work effort required to complete Phase I Engineering for this project, including the greater number of alternatives developed and evaluated, preparation of the Phase I report will be more complex than originally anticipated and will require multiple content and exhibit revisions for submittal to IDOT.
• Original awarded contract - $122,633.19; Change Order No. 1 - $27,116.45; sum of all changes - $27,116.45.
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