7-26 - RFP RFI Consultant Response.pdf

Luddington Road Sidewalk Panel Replacement companies. The “Call Before You Dig” service had, in the past, provided utility mark-outs for design. They no longer provide this service, and firms that request mark-outs for design, rather than construction, are subject to a fine. Therefore, the survey of utilities is limited to surface observations and the record information provided by the Township. 2. Civil Engineering Services A. Structural Design As noted previously, the existing structure consists of a cast-in-place concrete drainage culvert with a non-integral top slab serving as a sidewalk, and the top slab is proposed to be replaced with a precast concrete slab. A detailed structural design will be prepared for the proposed replacement of the culvert top slab. Design of the concrete slab will be performed based upon the following design standards and specifications:  AASHTO LRFD Bridge Design Specifications, including all amendments.  A Policy on Geometric Design of Highways and Streets – AASHTO, latest edition.  NJDOT Design Manual for Bridges and Structures, current edition, including all revisions.  NJDOT Design Manual - Roadway, latest edition.  2019 NJDOT Standard Specifications for Road and Bridge Construction, including all revisions.  Applicable provisions of the latest ACI (American Concrete Institute) code and/or the CRSI (Concrete Reinforcing Steel Institute) code as they pertain to placing and detailing reinforcement steel. It is assumed that the concrete slab will be designed for both pedestrian and vehicular loads due to the potential for vehicles to mount the adjacent curb. The use of concrete slab pre- and post-tensioning will also be explored during the design. Structural computations will be completed and submitted with the final contract documents. B. Contract Drawings and Specifications GPI will prepare preliminary construction drawings for the replacement of the existing concrete top slab sidewalk panels in accordance with West Orange and NJDOT standards. Construction drawings will include the following:  Cover Sheet  General Notes and Estimate of Quantities  Existing

h West Orange and NJDOT standards. Construction drawings will include the following:  Cover Sheet  General Notes and Estimate of Quantities  Existing Conditions/Survey Control Plan  Demolition Plans  Construction Plans  Traffic Control and Detour Plan  General Plan, Section and Elevation  Culvert Framing Plan  Construction Details (Roadway and Structure) Traffic Control and Construction Detour Based on the project location, it is anticipated that most of the work may be performed utilizing a shoulder closure, and a full road closure and local neighborhood detour will only be required during delivery and installation of the precast slabs. GPI will coordinate with the Township’s WOPD Traffic Bureau during the Preliminary Design phase to determine the shoulder closure requirements, the preferred detour route, and the necessary traffic control measures, and prepare the Traffic Control and Detour Plans. All traffic control measures and detour signage will be provided on the Traffic Control and Detour Plan. A preliminary detour plan will be provided for review and approval by the Township and West Orange Police Department. We will incorporate any Township comments in the final construction drawings and include them in the contract documents. Page | 3