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Title
Change order/ Amendment No. 3 with KSA Engineers for additional professional engineering services for Main Street and Jefferson Street Area Storm Drain Improvements in the amount of $99,900
Presenter
Romin Khavari, City Engineer
Recommended Action
Approve
Analysis
On April 15, 2014, the City Awarded a Professional engineering services contract with KSA Engineers for the Main Street and Jefferson Street Area Storm Drain Improvements in the amount of $192,300.
This contract provided for the preparation of design and bidding documents for the removal and installation of storm drain pipes and inlets in the Main Street/Jefferson street area between Center and NW 4th Street. These improvements were identified by Halff associates in 2012 Cottonwood and Lakeview Watershed Internal Storm Drain Master plan study, Part Two as Hot Spot area #4 to upsize and improve storm Drain facilities in the area.
On January 24, 2017 the City awarded a construction contract to Texas Standard Construction company for these improvements. The major improvements for this project provide for the installation of 432 linear feet of 24” reinforced concrete pipe, 202 linear feet of 48” reinforced concrete pipe, 1,121 linear feet of 5’x4’ Box culverts, numerous storm drain inlets, sidewalks, ramps and other related items of work in the following areas:
• Main St. from NW 4th St. to Collins
• Collins St from Main to Jefferson
• Jefferson St from SW 3rd to South Center St.
The major improvements for this project provide for the installation of 432 linear feet of 24” reinforced concrete pipe, 202 linear feet of 48” reinforced concrete pipe, 1,121 linear feet of 5’x4’ Box culverts, numerous storm drain inlets, sidewalks, ramps and other related items of work in the following areas:
• Main St. from NW 4th St. to Collins
• Collins St from Main to Jefferson
• Jefferson St from SW 3rd to South Center St.
This Change order/Amendment No.3 in the amount of $99,900 provides for Union Pacific Railroad Bore changes due to major conflicts with communications Duct bank at two Railroad crossings at 1) Center street and 2) South of Collins St. between Main street and Jefferson. It also provides for Dallas Street re-route of Storm Sewer System due to an unknown 42" storm drain main that was determined to go under duplexes as well as a supermarket. Once the design is complete staff will work with the contractor to obtain prices for the proposed re-route and abandonment of the existing storm drain under the existing structures for a construction change order consideration.
Change order/Amendments 1 and 2 were time extensions only.
Financial Consideration
Funding for the Change order/ Amendment No. 3 with KSA Engineers for Additional professional engineering services for Main Street and Jefferson Street Area Storm Drain Improvements in the amount of $99,900 is available in Wastewater Capital Projects Fund (500692) WO #01812303 (FY18 I&I)