NAICS 23711in2371:Utility System Construction

Water and Sewer Line and Related Structures Construction

415 active contract opportunities

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Top Industries

  • Water and Sewer Line and Related Structures Construction391
  • NAICS 237110 Water and Sewer Line and Related Structures Construction24

Set-Aside Distribution

  • 156
  • Small Business83
  • Full & Open50
  • Small Business Set Aside - Total42
  • SDVOSB24

Top Locations

  • CA73
  • VA47
  • CO25
  • OK22
  • WA22

About NAICS23711

The North American Industry Classification System (NAICS) code 23711 covers water and sewer line and related structures construction. Federal agencies use NAICS codes to classify contracts by industry. Businesses should register their applicable NAICS codes in SAM.gov.

SAM.gov Registration →|Set-Aside Programs →

Related Industries

23611:Residential Building Construct...23621:Industrial Building Constructi...23622:Commercial and Institutional B...23712:Oil and Gas Pipeline and Relat...23713:Power and Communication Line a...23721:Land Subdivision

20127 SX0 Jennifer

Small Business Administration (SBA)
MD
NAICS 237110
Posted Oct 1, 2026
Due Nov 5, 2026
Small Business (SB), SBA certified Veteran Owned Small Business (VOSB), SBA certified Service-Disabled Veteran Owned Small Business (SDVOSB), SBA certified Women-Owned Small Business (WOSB), SBA certified HUBZone Small Business (HUBZone SB), SAM.gov designated Small Disadvantaged Business (SDB), Certified Disadvantaged Business Enterprise (DBE) – Dept of Transportation

Alvarado Trunk Sewer PH IV and Water Main Relocations Bid Package A

Small Business Administration (SBA)
CA
NAICS 237110
Posted Oct 1, 2026
Due Oct 28, 2026
Small Business (SB), SBA certified Veteran Owned Small Business (VOSB), SBA certified Service-Disabled Veteran Owned Small Business (SDVOSB), SBA certified Women-Owned Small Business (WOSB), SBA certified HUBZone Small Business (HUBZone SB), SAM.gov designated Small Disadvantaged Business (SDB), Certified Disadvantaged Business Enterprise (DBE) – Dept of Transportation

Greenfield Wastewater Treatment Plant Upgrade Project

Small Business Administration (SBA)
CA
NAICS 237110
Posted Oct 1, 2026
Due Oct 28, 2026
Small Business (SB), SBA certified Women-Owned Small Business (WOSB), SBA certified HUBZone Small Business (HUBZone SB), SAM.gov designated Small Disadvantaged Business (SDB), Certified Disadvantaged Business Enterprise (DBE) – Dept of Transportation

Purified Water Replenishment - San Jacinto Valley Advanced Water Purification Facility

Small Business Administration (SBA)
CA
NAICS 237110
Posted Oct 1, 2026
Due Nov 17, 2026
Small Business (SB), SBA certified Veteran Owned Small Business (VOSB), SBA certified Service-Disabled Veteran Owned Small Business (SDVOSB), SBA certified Women-Owned Small Business (WOSB), SBA certified HUBZone Small Business (HUBZone SB), SAM.gov designated Small Disadvantaged Business (SDB), Certified Disadvantaged Business Enterprise (DBE) – Dept of Transportation

Alta, IA Municipal Utilities Water Treatment Plant

Small Business Administration (SBA)
IA
NAICS 237110
Posted Oct 1, 2026
Due Oct 7, 2026
Certified Disadvantaged Business Enterprise (DBE) – Dept of Transportation

TAMUS RELLIS Water Well

Small Business Administration (SBA)
TX
NAICS 237110
Posted Oct 1, 2026
Due Oct 8, 2026
SBA certified Veteran Owned Small Business (VOSB), SBA certified HUBZone Small Business (HUBZone SB)

Recharge Master Plan Update Basin Improvements Project - Montclair Basin Improvements

Small Business Administration (SBA)
CA
NAICS 237110
Posted Oct 1, 2026
Due Oct 29, 2026
Small Business (SB), Certified Disadvantaged Business Enterprise (DBE) – Dept of Transportation

IEUA RMPU Basin Improvements Project Montclair Basin Improvements

Small Business Administration (SBA)
CA
NAICS 237110
Posted Oct 1, 2026
Due Oct 29, 2026
Certified Disadvantaged Business Enterprise (DBE) – Dept of Transportation

Bucksport WWTP 42-inch Effluent Force Main in Conway, SC

Small Business Administration (SBA)
SC
NAICS 237110
Posted Oct 1, 2026
Due Oct 5, 2026
Small Business (SB), SAM.gov designated Small Disadvantaged Business (SDB), SBA certified Women-Owned Small Business (WOSB), SBA certified HUBZone Small Business (HUBZone SB), Certified Disadvantaged Business Enterprise (DBE) – Dept of Transportation, Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

IEUA RP-5 Offsite Facilities Project No. EN19001.03 and Butterfield Lift Station Improvements Project No. EN26054

Small Business Administration (SBA)
CA
NAICS 237110
Posted Oct 1, 2026
Due Oct 29, 2026
Small Business (SB), SAM.gov designated Small Disadvantaged Business (SDB), SBA certified Women-Owned Small Business (WOSB), SBA certified HUBZone Small Business (HUBZone SB), SBA certified Veteran Owned Small Business (VOSB), SBA certified Service-Disabled Veteran Owned Small Business (SDVOSB), Alaskan Native Corporation (ANC) or Indian Tribe (IT), Native Hawaiian Organization (NHO), Certified Disadvantaged Business Enterprise (DBE) – Dept of Transportation, Disadvantaged Veteran Business Enterprise (DVBE) – State of California, Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

COLLEGE PLACE WWTP PHASE 1B

Small Business Administration (SBA)
WA
NAICS 237110
Posted Oct 1, 2026
Due Oct 20, 2026
Small Business (SB), SAM.gov designated Small Disadvantaged Business (SDB), SBA certified Women-Owned Small Business (WOSB), SBA certified HUBZone Small Business (HUBZone SB), SBA certified Veteran Owned Small Business (VOSB), SBA certified Service-Disabled Veteran Owned Small Business (SDVOSB), Alaskan Native Corporation (ANC) or Indian Tribe (IT), Native Hawaiian Organization (NHO), Certified Disadvantaged Business Enterprise (DBE) – Dept of Transportation, Disadvantaged Veteran Business Enterprise (DVBE) – State of California, Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

Construction of the Recharge Master Plan Update Basin Improvements Project Montclair Basin Improvements

Small Business Administration (SBA)
CA
NAICS 237110
Posted Oct 1, 2026
Due Oct 29, 2026
Small Business (SB), SAM.gov designated Small Disadvantaged Business (SDB), SBA certified Women-Owned Small Business (WOSB), SBA certified HUBZone Small Business (HUBZone SB), SBA certified Veteran Owned Small Business (VOSB), SBA certified Service-Disabled Veteran Owned Small Business (SDVOSB), Alaskan Native Corporation (ANC) or Indian Tribe (IT), Native Hawaiian Organization (NHO), Certified Disadvantaged Business Enterprise (DBE) – Dept of Transportation, Disadvantaged Veteran Business Enterprise (DVBE) – State of California, Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

Water Tank Storage (AM04)

DEPT OF DEFENSE
MOBILE, AL
NAICS 237110
Posted Sep 30, 2026
Small Business Set Aside - Total

Lava Lands Pump Replacement & Well Survey

AGRICULTURE, DEPARTMENT OF
Portland, OR
NAICS 237110
Posted Sep 30, 2026
Small Business Set Aside - Total

Y-BRCA 318695 - CONSTRUCTION

INTERIOR, DEPARTMENT OF THE
Denver, CO
NAICS 237110
Posted Sep 30, 2026
Due Oct 8, 2026
Small Business Set Aside - Total

Y-NGWSP Cutter Lateral Reach 21 Booster Plant

INTERIOR, DEPARTMENT OF THE
SALT LAKE CITY, UT
NAICS 237110
Posted Sep 30, 2026
Due Oct 30, 2026
Small Business Set Aside - Total

4 GAOA Flaming Gorge Water System Buckboard in Ashley NF, Wyoming

AGRICULTURE, DEPARTMENT OF
WASHINGTON, DC
NAICS 237110
Posted Sep 30, 2026
Due Oct 27, 2026
Small Business Set Aside - Total

88TH RD US ARMY RESERVE CENTER ARLINGTON HEIGHTS, IL WATER INFRASTRUCTURE IMPROVEMENTS- AWARD

DEPT OF DEFENSE
ROCK ISLAND, IL
NAICS 237110
Posted Sep 29, 2026
8(a) Set-Aside

REPAIR SOUTH POST RESERVOIRS

DEPT OF DEFENSE
FORT MCCOY, WI
NAICS 237110
Posted Sep 29, 2026
HUBZone

Forest Wide Well Decommissioning Mystic River and Custer Ranger Districts, Black Hills National Forest, South Dakota

AGRICULTURE, DEPARTMENT OF
Ogden, UT
NAICS 237110
Posted Sep 29, 2026
Small Business Set Aside - Total
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