ADA_Specifications_McNairy_Manholes.docx

Manhole Cover Repair/Replacement in McNairy County Specifications Summary/Background Information:

The Tennessee Department of Transportation (TDOT) is seeking a Contractor to perform junction box/manhole removal and brick replacement or repairs to a total of 15 locations along State Route 15 in McNairy County. All work shall be completed in accordance with the specifications outlined below. One Contractor will be selected to perform the full scope of services described in this document.

Independent Site Visit:

Bidders are strongly encouraged to conduct an independent site visit of all 15 locations prior to submitting a proposal to inspect existing conditions, verify dimensions, and understand the full scope of work. Failure to conduct a site visit or to provide a complete and accurate bid submission shall not constitute grounds for price adjustments, change orders, or claims for additional compensation after contract award.

Scope of Work:

The Contractor shall provide all labor, equipment, traffic control, and material, and perform all services necessary to complete the following tasks.

a. Junction Box Removal and Site Conditions

i. Sawcut asphalt, as needed, to create a clean, uniform edge around the lid location, and maintain the structural integrity of the junction box during lid removal.

ii. Remove and dispose of all debris, broken concrete, damaged lids, and surrounding materials displaced during removal and/or installation.

b. Traffic Control

i. Provide all necessary traffic control devices, signage, and personnel required to safely perform work on an active State route.

ii. Ensure all work zones remain protected for the duration of operations at each site and adhere to TDOT Standard Drawings and MUTCD Standards.

c. Junction Box Brick Repair

i. Inspect junction box for loose, damaged, or missing brick.

ii. Repair brickwork using appropriate materials to restore a stable, level surface capable of supporting the new lid.

d. Pouring of New Lids

i. New junction box lids shall be fabricated to the correct dimensions for each location using two (2) rebar mats, with reinforcements placed at six-centers (6” in).

ii. Use hi-early strength concrete for all lid fabrication as solid covers with no manhole access openings.

e. Asphalt Restorations

i. Hot-mix asphalt shall be placed around the perimeter of each installed lid to restore the pavement section affected during removal.

ii. Compact asphalt shall match the grade, slope, and smoothness of the existing roadway with a seamless transition between new pavement and existing driving surface.

f. Materials All materials incorporated into the final product shall be:

i. Sourced from the State of Tennessee, Department of Transportation’s Qualified Producer list; and/or

ii. Listed on the Department of Transportation’s Qualified Products List.

By submitting bids for this work, the Contractor represents that it has:

· Carefully examined the site of the work described herein;

· Is familiar with local conditions and the character and extent of the work;

· Has carefully examined the plans (example images provided) and the Standard Specifications for Road and Bridge Construction (January 1, 2021) adopted by the State of Tennessee, Department of Transportation and recognizes and attests that all work will be conducted in accordance with these plans and standards.

Contractor Qualifications:

i. Contractor must come from TDOT’s Prequalified Contractors list. The prequalification process typically takes approximately 14 days from the date which the application is received.

ii. Contractors must submit proof of previously completed precast concrete work in the past. Supported by documentation such as photos, invoices, permits, or completion records.

Project Logistics and Coordination:

a. Project Location: McNairy County on State Route 15, at fifteen (15) locations with East Bound logged mile markers listed below:

b. Work Period: All work must be completed within 45 calendar days from the time a Purchase Order (PO) is issued to the Contractor. The Contractor is solely responsible for scheduling its activities. TDOT does not impose specific time-of-day restrictions; however, the Contractor should consider local conditions, such as school zones and traffic patterns, when making its scheduling decisions.

c. Coordination: The Contractor shall coordinate with TDOT’s designated project representative. The representative information will be provided upon Contract award.

d. Inspection and approval: TDOT shall serve as the final authority in determining whether the work meets the required specifications. Any work deemed deficient shall be corrected by the Contractor at the Contractor’s expense, including rework, material replacement, and/or regrading as necessary.

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