UKNAICS 237990
Other Heavy and Civil Engineering Construction contracts
Open federal opportunities classified under NAICS 237990.
128 opportunities open now
Solicitation
Closes in 22 daysNew Haven Harbor Improvement Dredging, New Haven, CT
Dept of Defense
237990 · Other Heavy and Civil Engineering Cons… Posted Jun 04, 2026
Solicitation
Closes in 27 daysRudee Inlet Maintenance Dredging
Dept of Defense
237990 · Other Heavy and Civil Engineering Cons… Posted Jun 04, 2026
SolicitationSmall Business
Closes in 27 daysOregon/Washington Clamshell Maintenance Dredging 2026
Dept of Defense
237990 · Other Heavy and Civil Engineering Cons… Posted Jun 04, 2026
SolicitationSmall Business
Closes in 26 daysMI-SENEY NWR-DC DAM DECOMMISIONING
Interior, Department of the
237990 · Other Heavy and Civil Engineering Cons… Posted Jun 04, 2026
Combined Synopsis/SolicitationSmall Business
Closes in 3 daysFloating Dock
Dept of Defense
237990 · Other Heavy and Civil Engineering Cons… Posted Jun 04, 2026
Sources Sought
Closes in 9 daysColumbia River Pile Dike King Pile Markers
Dept of Defense
237990 · Other Heavy and Civil Engineering Cons… Oregon Posted Jun 04, 2026
Combined Synopsis/SolicitationSmall Business
Closes in 22 daysGAOA Sam Owen Campground Improvements, Idaho Panhandle National Forest
Agriculture, Department of
237990 · Other Heavy and Civil Engineering Cons… Idaho Posted Jun 04, 2026
SolicitationSmall Business
Closes in 8 daysSUISUN BAY CHANNEL AND NY SOLUGH FY26 MAINTENANCE DREDGING PROJECT
Dept of Defense
237990 · Other Heavy and Civil Engineering Cons… Posted Jun 04, 2026
SolicitationSmall Business
Closes in 3 daysFY26 REDWOOD CITY CHANNEL MAINTENANCE DREDGING PROJECT
Dept of Defense
237990 · Other Heavy and Civil Engineering Cons… Posted Jun 04, 2026
Solicitation
Closes in 2 daysC--Playground and Flood Prevention - Havasupai Elemen
Interior, Department of the
237990 · Other Heavy and Civil Engineering Cons… Posted Jun 04, 2026
Sources SoughtNONE
Closes tomorrowSOURCES SOUGHT NOTICE to identify firms capable of performing ATON Repair & Replace Work at Base Tongue Point/Columbia River, Astoria, OR
Homeland Security, Department of
237990 · Other Heavy and Civil Engineering Cons… Oregon Posted Jun 04, 2026
SolicitationSmall Business
Closes in 9 daysDrainage Basin Installation, Mansfield Hollow Dam, Mansfield, CT
Dept of Defense
237990 · Other Heavy and Civil Engineering Cons… Posted Jun 03, 2026
Solicitation
Closes in 27 daysRudee Inlet Maintenance Dredging
Dept of Defense
237990 · Other Heavy and Civil Engineering Cons… Posted Jun 03, 2026
PresolicitationSmall Business
Closes Jul 13, 2026Y--Cauldron Linn Recreation Site Improvements
Interior, Department of the
237990 · Other Heavy and Civil Engineering Cons… Posted Jun 03, 2026
PresolicitationNONE
Closes in 9 daysFreshwater Bayou - Lock to The Gulf, Freshwater Bayou Maintenance Dredging #26-2, ED 26-025
Dept of Defense
237990 · Other Heavy and Civil Engineering Cons… Posted Jun 03, 2026
PresolicitationSmall Business
Closes in 9 daysInstall 4 Corners Hydraulics at Dashields Locks and Dam
Dept of Defense
237990 · Other Heavy and Civil Engineering Cons… Posted Jun 03, 2026
Presolicitation
Closes in 8 daysAtlantic Coast of Maryland (ACMD) Berm Reconstruction
Dept of Defense
237990 · Other Heavy and Civil Engineering Cons… Posted Jun 03, 2026
PresolicitationSDVOSB
Closes in 9 daysMuscatine-Louisa County Drainage District No. 13 – 2024 Event PL84-99 Flood Repairs
Dept of Defense
237990 · Other Heavy and Civil Engineering Cons… Iowa Posted Jun 03, 2026
PresolicitationSmall Business
Closes Jul 13, 2026Y--Indian Springs Vault Toilet
Interior, Department of the
237990 · Other Heavy and Civil Engineering Cons… Posted Jun 03, 2026
PresolicitationSmall Business
Closes Jul 22, 2026Y--GAOA Milner Picnic Site Cabana Replacement
Interior, Department of the
237990 · Other Heavy and Civil Engineering Cons… Posted Jun 03, 2026
Sources Sought
Closes in 8 daysCommander, Navy Installations Command (CNIC) Design-Bid-Build, RM-23-1146 Dry Dock 2 Caisson Overhaul at Portsmouth Naval Shipyard (PNSY) in Kittery, Maine
Dept of Defense
237990 · Other Heavy and Civil Engineering Cons… Maine Posted Jun 03, 2026
SolicitationSmall Business
Closes in 28 daysCrains Island Stage 3
Dept of Defense
237990 · Other Heavy and Civil Engineering Cons… Posted Jun 03, 2026
PresolicitationNONE
Closes in 9 daysFreshwater Bayou - Lock to The Gulf, Freshwater Bayou Maintenance Dredging #26-1, ED 25-018
Dept of Defense
237990 · Other Heavy and Civil Engineering Cons… Posted Jun 03, 2026
Solicitation
Closes in 8 daysZ--DK Heart Butte Dam Safety Modification
Interior, Department of the
237990 · Other Heavy and Civil Engineering Cons… Posted Jun 03, 2026
Presolicitation
Closes Jul 15, 2026Pre-Solicitation Synopsis - LOCK AND DAM 25 NEW 1,200 FT LOCK NAVIGATION AND ECOSYSTEM SUSTAINABILITY PROGRAM (NESP)
Dept of Defense
237990 · Other Heavy and Civil Engineering Cons… Posted Jun 02, 2026
Set-asides used in this sector
Small Business8(a)HUBZoneSDVOSB
About NAICS 237990
Heavy and civil engineering construction not classified elsewhere — including dams, dredging, marine construction, and other heavy-civil works. Used for federal Corps of Engineers civil-works projects, port construction, and similar specialised infrastructure.
Typical award value: $2M – $250M+ per award.