NIGP 15590: Tunnel Accessories and Parts

NIGP 15590 Tunnel Accessories And Parts, an Item code, covers sewer system repair and access infrastructure improvements that state and local governments procure for wastewater collection systems. The code encompasses materials and work related to sewer rehabilitation, including access improvements to tunnel and pipe systems serving municipal wastewater networks. Recent solicitations show issuing bodies at the county and municipal level soliciting repair and access work on multiple sewer lines as part of broader infrastructure maintenance and rehabilitation initiatives. The scope of work is distinctly infrastructure-focused rather than component supply — state and local buyers are procuring integrated repair and improvement services tied to specific sewer system segments rather than discrete tunnel parts or accessories.

Wayne County posted an IFB for sewer rehabilitation work across four sewer systems (Ashland Relief, Linwood, Second Avenue with Highland Park Laterals Alley, and Shiawassee) with proposals due October 1, 2026. The City of DeBary in Volusia County, Florida, solicited a construction contract for Fire Station #3 in 2016, though that opportunity has closed and does not represent active demand under this code. Activity under the code appears limited in the recent-opportunity block; the Wayne County sewer rehabilitation work represents the principal current solicitation signal for this Item code. Geographic spread is not fully characterized by a single recent opportunity, though Wayne County (Michigan) represents documented current activity. The estimated project value and specific performance timeline details are not disclosed in the Wayne County solicitation.