NAICS 23711: Water and Sewer Line and Related Structures Construction
NAICS industry
Code facts
- Part of
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23
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237
- 2371
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237
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23
- Codes under it
- 1
- Contract awards
- 563 In the last 12 months
- Contract obligations
- $970,743,993 In FY2025
NAICS codes and definitions come from the U.S. Census Bureau, size standards from the SBA and contract spending from SAM.gov/FPDS.
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $1,424,529 |
| FY2026 | $1,447,182,822 |
| FY2025 | $970,743,993 |
| FY2024 | $1,153,159,450 |
| FY2023 | $1,169,219,785 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | PCL Construction Inc. | $445,975,526 | |
| 2 | Record Steel And Construction, Inc. | $129,799,402 | |
| 3 | Ames Federal Contracting Group LLC | $129,487,964 | |
| 4 | G.s.e. Construction Company, Inc. | $109,487,800 | |
| 5 | Carstensen Contracting Inc. | $72,863,608 | |
| 6 | Perini Management Services, Inc. | $70,480,122 | |
| 7 | Red Point Construction, LLC | $38,609,448 | |
| 8 | Pate Construction Co., Inc. | $36,970,616 | |
| 9 | Red Eagle 3 JV | $22,859,800 | |
| 10 | Bairco Construction Inc. | $19,150,397 |
See the full FY2025 ranking of NAICS 23711 contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Interior | $675,623,459 | |
| 2 | International Boundary and Water Commission U.S.-Mexico | $447,405,854 | |
| 3 | Department of the Army | $122,838,654 | |
| 4 | Department of Veterans Affairs | $81,540,200 | |
| 5 | Department of Agriculture | $37,646,533 | |
| 6 | Department of the Navy | $33,591,258 | |
| 7 | Department of State | $14,530,664 | |
| 8 | Department of Justice | $14,525,716 | |
| 9 | Department of Homeland Security | $8,620,277 | |
| 10 | Department of Health and Human Services | $5,158,232 |
Top PSC codes by obligations
| Rank | PSC code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Y1ND Construction of Sewage and Waste Facilities | $740,079,279 | |
| 2 | Y1NE Construction of Water Supply Facilities | $322,559,793 | |
| 3 | Z2NE Repair or Alteration of Water Supply Facilities | $90,495,312 | |
| 4 | Y1NZ Construction of Other Utilities | $68,040,594 | |
| 5 | Z2NZ Repair or Alteration of Other Utilities | $66,251,309 | |
| 6 | Z1NE Maintenance of Water Supply Facilities | $28,497,438 | |
| 7 | Y1JZ Construction of Miscellaneous Buildings | $19,880,986 | |
| 8 | Z2FF Repair or Alteration of Penal Facilities | $13,722,610 | |
| 9 | Z2ND Repair or Alteration of Sewage and Waste Facilities | $11,783,832 | |
| 10 | Z1DA Maintenance of Hospitals and Infirmaries | $11,043,484 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | California | $546,976,956 | |
| 2 | Wyoming | $247,303,642 | |
| 3 | New Mexico | $226,741,720 | |
| 4 | Arizona | $48,601,379 | |
| 5 | Alaska | $43,330,716 | |
| 6 | Colorado | $41,738,810 | |
| 7 | Arkansas | $34,664,212 | |
| 8 | South Carolina | $34,569,243 | |
| 9 | Montana | $23,224,144 | |
| 10 | Virginia | $19,306,353 | |
| 11 | Texas | $16,983,583 | |
| 12 | Oregon | $14,605,233 | |
| 13 | North Carolina | $12,708,711 | |
| 14 | Oklahoma | $11,570,647 | |
| 15 | Tennessee | $11,517,696 | |
| 16 | Washington | $10,239,895 | |
| 17 | New York | $9,522,010 | |
| 18 | New Jersey | $8,390,508 | |
| 19 | Minnesota | $7,068,612 | |
| 20 | Maryland | $6,594,117 | |
| 21 | Missouri | $5,882,334 | |
| 22 | Georgia | $5,055,293 | |
| 23 | Louisiana | $4,871,732 | |
| 24 | Florida | $4,814,105 | |
| 25 | Alabama | $4,017,910 | |
| 26 | Indiana | $3,548,413 | |
| 27 | Illinois | $3,532,697 | |
| 28 | Hawaii | $3,314,568 | |
| 29 | Utah | $3,274,907 | |
| 30 | Massachusetts | $2,746,154 | |
| 31 | South Dakota | $2,509,955 | |
| 32 | Michigan | $2,462,629 | |
| 33 | Nevada | $2,421,904 | |
| 34 | Kansas | $1,908,412 | |
| 35 | District of Columbia | $927,998 | |
| 36 | Idaho | $915,895 | |
| 37 | Wisconsin | $724,835 | |
| 38 | Ohio | $711,260 | |
| 39 | Maine | $680,245 | |
| 40 | Nebraska | $664,861 | |
| 41 | North Dakota | $583,269 | |
| 42 | Rhode Island | $498,857 | |
| 43 | Pennsylvania | $190,211 | |
| 44 | Mississippi | $188,679 | |
| 45 | West Virginia | $183,328 | |
| 46 | Guam | $169,955 | |
| 47 | Delaware | $97,621 | |
| 48 | New Hampshire | $40,925 | |
| 49 | Connecticut | $5,931 | |
| 50 | Kentucky | $4,830 | |
| 51 | Puerto Rico | $3,417 |
Show all 51
Shares are of everything obligated under NAICS 23711 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
Show 40 more
Latest 50 of 10,367 listed here. See the rest on GovTribe.
Codes under 23711
| NAICS code | Size standard |
|---|---|
| 237110 Water and Sewer Line and Related Structures Construction | $45 million in average annual receipts |
Definition
This industry comprises establishments primarily engaged in the construction of water and sewer lines, mains, pumping stations, treatment plants, and storage tanks. The work performed may include new work, reconstruction, rehabilitation, and repairs. Specialty trade contractors are included in this industry if they are engaged in activities primarily related to water, sewer line, and related structures construction.
All structures (including buildings) that are integral parts of water and sewer networks (e.g., storage tanks, pumping stations, water treatment plants, and sewage treatment plants) are included in this industry.
Illustrative examples
- Aqueduct construction
- Artesian well construction
- Capping of water wells
- Construction management, water and sewage treatment plant
- Construction management, water and sewer line
- Distribution line, sewer and water, construction
- Drilling water wells (except water intake wells in oil and gas fields)
- Fire hydrant installation
- Geothermal drilling
- Hydrant and flushing hydrant installation
- Irrigation project construction (except lawn)
- Lagoon, sewage treatment construction
- Pumping station, water and sewage system, construction
- Reservoir construction
- Sanitary sewer construction
- Sewage collection and disposal line construction
- Sewage disposal plant construction
- Sewage treatment plant construction
- Sewer construction
- Sewer main, pipe and connection, construction
- Storm sewer construction
- Utility line (i.e., sewer, water), construction
- Water desalination plant construction
- Water filtration plant construction
- Water main and line construction
- Water pumping or lift station construction
- Water sampling station installation
- Water system storage tank and tower construction
- Water treatment plant construction
- Water well drilling, digging, boring or sinking (except water intake wells in oil and gas fields)
- Water well pump and well piping system installation
Show all 31
Quick answers
What is NAICS 23711?
NAICS 23711 is Water and Sewer Line and Related Structures Construction, a NAICS industry in NAICS 23, Construction.
What is the NAICS code for sewer construction?
The NAICS code for sewer construction is 237110, Water and Sewer Line and Related Structures Construction. Its SBA small business size standard is $45 million in average annual receipts.
What is the NAICS code for geothermal drilling?
The NAICS code for geothermal drilling is 237110, Water and Sewer Line and Related Structures Construction. Its SBA small business size standard is $45 million in average annual receipts.
What is the NAICS code for aqueduct construction?
The NAICS code for aqueduct construction is 237110, Water and Sewer Line and Related Structures Construction. Its SBA small business size standard is $45 million in average annual receipts.
What codes are under NAICS 23711?
NAICS 23711 has one code under it with its own GovTribe page, 237110 Water and Sewer Line and Related Structures Construction.
How much do federal agencies spend under NAICS 23711?
Federal contracts under NAICS 23711 obligated $970,743,993 in fiscal year 2025 and $4,741,730,578 in fiscal years 2023 through 2027.
Who are the largest contractors under NAICS 23711?
The contractors with the most obligated under NAICS 23711 in fiscal years 2026 and 2027 are PCL Construction Inc. ($445,975,526); Record Steel And Construction, Inc. ($129,799,402); and Ames Federal Contracting Group LLC ($129,487,964).
Which agencies buy the most under NAICS 23711?
The agencies that obligated the most under NAICS 23711 in fiscal years 2026 and 2027 are Department of the Interior ($675,623,459), International Boundary and Water Commission U.S.-Mexico ($447,405,854) and Department of the Army ($122,838,654).
Which PSC codes are used with NAICS 23711?
The PSC codes with the most obligated under NAICS 23711 in fiscal years 2026 and 2027 are Y1ND Construction of Sewage and Waste Facilities, Y1NE Construction of Water Supply Facilities and Z2NE Repair or Alteration of Water Supply Facilities.
Where is the work under NAICS 23711 performed?
By place of performance, the states with the most contract obligations under NAICS 23711 over the last 12 months are California ($546,976,956), Wyoming ($247,303,642) and New Mexico ($226,741,720).
What is the latest contract opportunity under NAICS 23711?
The latest contract opportunity under NAICS 23711 is GRCA 318719 North Rim & Roaring Springs Rehabilitation Program, pre-solicitation, posted October 22, 2026.
On GovTribe
See everything under NAICS 23711
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