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The intent of this project is to clean and evaluate for repair approximately 3,400 LF of 48” degraded Reinforced Concrete Pipe(RCP) and approximately 800 LF of 30” degraded RCP on Tyndall AFB. Cleaning/evaluation will also include associated storm manholes and collectors and tributary entry points of miscellaneous lines to the above manholes and collectors. It is suspected that pipe joints and possible fractures are allowing infiltration of ground waters and that these points are a probable cause of localized sink holes. Past drainage studies note several areas where sinkholes and piping are evident, some of the sinkholes may have increased in size and/or may have been temporarily filled with soils as a interim safety measure. In event that collapsed sections are observed, those sections may be replaced under separate contract - this contract does not include full pipe section replacement, nor does it include any repairs. It is unknown if any asbestos containing material (ACM) or if clay pipe was incorporated into this system. Mortar type and quantity is unknown but it is suspected that loose and missing mortar at the joints are a contributing factor to infiltration and exfiltration, which this inspection and evaluation is meant to address. Previous repair status is also unknown. Contractor shall be responsible for verification of all existing conditions and utilities and access protocols prior to execution of the work. Some of the work may require access to the WSEP ramp and field between the WSEP Ramp and Taxiway Papa.

There will be a site visit scheduled June 20, 2023

Questions Due: No later than 1:00 PM CST, 26 June 2023

Quote Due Date: No later than 1:00 PM CST, 30 June 2023