07-27-20 Regular Meeting of the La Porte City Council

Browse Search

The goal of the Northside Neighborhood Drainage Improvement Project is to improve the functionality of the storm sewer system and increase the level of service in the region. Lockwood, Andrews, & Newnam, Inc. prepared a preliminary engineering report which evaluated design options and determined the most efficient flood reduction approach. The preliminary engineering report was finalized on March 20, 2020, providing design recommendations for the Northside Neighborhood Drainage Improvement Project. Realizing the potential delays associated with TXGLO and Harris County procurement requirements, the City requested to move all funding into construction and opted to pay for soft costs using budgeted City funds. Thus, all awarded funding will be utilized to pay for construction phase services. The Authorization to Proceed with Phase 1 design was approved at the June 8, 2020 City Council meeting. As recommended by LAN within the preliminary engineering report, this project will be completed in phases. Phase 1 is anticipated to provide for the construction of an outfall stru sewer boxes for a total estimated Phase 1 cost of $312,000.00. Phase 2 will include the construction of a detention facility, in addition to the storm sewer boxes, for a total estimated cost of $3,060,000.00 of Phase 2 improvements. The $325,775.30 and $3,472,757.00 grant allocations will be utilize on the construction of Phase 1 and Phase 2 improvements, respectively. The preliminary engineering report also includes a recommendation for Phase 3 for reinforced concrete storm sewer system to reroute flows further downstream in effort to expand the benefit area. However, at an estimated cost of $5,360,000, supplemental Phase 3 improvements exceed the current project budget. Staff has negotiated the attached scope of work for engineering service with Lockwood, Andrews, & Newnam, Inc. The proposal includes: basic services for engineering design, bidding, and construction phase services in the amount of $258,865.00; additional services of surveying, geotechnical investigation, and subsurface utility engineering for $111,698.00; and optional additional environmental services for $24,420.00; for a total project cost of $394,983.00. This project obtained several environmental clearances as part of the grant application process, if the environmental clearances are acceptable to the permitting entities during design, there is a potential that the optional environmental services are not utilized. RECOMMENDED MOTION I move to authorize the City Manager to execute a professional services agreement with Lockwood, Andrews, & Newnam, Inc.for the Northside Neighborhood Drainage Improvement Project, for a total authorization of $394,983.00. Approved for the City Council meeting agenda