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Amendment No. 3 to 43`d Avenue Roadway and Drainage Improvements Professional Engineering Services Agreement 3 . The ENGINEER will prepare parcel sketches and legal descriptions as an optional service, as requested by the COUNTY, under a unit price allowance. B . Preliminary (60% Design) Plans The ENGINEER will prepare and submit preliminary (60% design) plans to the COUNTY for review and comment. The COUNTY will provide review comments in writing to the ENGINEER. The ENGINEER will meet with the COUNTY to discuss the COUNTY' S review comments (if required) and the ENGINEER will provide written responses to the COUNTY ' S comments. The ENGINEER will incorporate the COUNTY ' S review comments into the design drawings, where applicable. Preliminary plans shall be prepared to include : 1 . Typical Sections : The ENGINEER will revise the previous typical pavement section for 43`d Avenue to provide double 11 -foot wide travel lanes in each direction, a center median, one-foot wide paved shoulders, two-foot wide buffer strips, and four-foot wide sidewalks on both sides, as per the Board approved "Option IA" for constrained right-of-way. 2 . Plan and Profile Views : The ENGINEER will revise the previously prepared plan and profile sheets from 8`h to 18`h Streets to provide left tum lanes and U-turn bump-outs at 9`h Place/ 10t1, Street and 13 `h Place/14t ' Street, and left and right tum lanes and U-turn bump-outs at the 8`h, 12`1,, and 16°i Street intersections. Plan views will show the geometric roadway layout, including side streets, driveways, and sidewalks. The profiles will include the existing and proposed centerline elevations of the pavement, east and west limits of the existing pavement, the existing and proposed utility lines, and the existing and proposed drainage pipes and structures . 3 . Signing and Marking Plans : The ENGINEER will revise the previously prepared signing and marking sheets from 8t" to 18`h Streets, as appropriate to accommodate the revised roadway design, and to add StreetPrint (simulated pavers stamped in asphalt) in the left turn lanes at intersections and median openings, and stamped concrete on the median nosings . 4 . Signalization Plans : The ENGINEER (through a sub-consultant) will revise the previously prepared signalization plans at the 81h, 12`h, and 16`h Street/43`d Avenue intersections to provide mast-arm signals in lieu of the current span- wire designs. 5 . Stormwater Management System : The ENGINEER will revise the previously prepared stormwater management system design to provide main- line piping on both sides of the roadway from 12`h to 16`h Streets, to convey the runoff to two new stormwater ponds (one on each side of 43`d Ave) with traditional control structures and outfall pipes to the 1RFWCD canals. The ENGINEER will preserve the existing stormwater management system Page 2 of 8