NAICS 237990

Other Heavy and Civil Engineering Construction contracts

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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.

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Other Heavy and Civil Engineering Construction contracts

About NAICS 237990

Other Heavy and Civil Engineering Construction contracts

About NAICS 237990

Arcadia Wet Well Rehabilitation

Sources Sought/Request for Information Upper Mississippi River Restoration (UMRR) – Quincy Bay Habitat Rehabilitation and Enhancement Project- Stage 1

Z--ALPO STABILIZATION OF STAPLE BEND TUNNEL

Fort Bliss National Cemetery, Gravesite Expansion and FCA Deficiencies

Barataria Bay Waterway, Maintenance Dredging, Bar Channel

Y--Timucuan Ecological and Historic Preserve TIMU-335507 Stabilize Kingsley Plan

RIO DE LA PLATA FLOOD CONTROL PROJECT, SUPPLEMENTAL CONTRACT 1 PROJECT LOCATION: DORADO AND TOA BAJA, PUERTO RICO

Y--GLCA 318882 Bullfrog

LOCK AND DAM 25 NEW 1,200 FT LOCK NAVIGATION AND ECOSYSTEM SUSTAINABILITY PROGRAM (NESP)

Barataria Bay Waterway, Maintenance Dredging (Non-Continuous) Bayou Rigaud, Jefferson Parish, Louisiana (ED-25-008)

LOCK AND DAM 25 NEW 1,200 FT LOCK NAVIGATION AND ECOSYSTEM SUSTAINABILITY PROGRAM (NESP)

Z--CABLEWAY CRANE REFURBISHMENT

LOCK AND DAM 25 NEW 1,200 FT LOCK NAVIGATION AND ECOSYSTEM SUSTAINABILITY PROGRAM (NESP)

Pre Solicitation Notice: FY27 Maintenance Dredging Yokohama North Dock

Haleiwa Small Boat Harbor Maintenance Dredging and Revetted Mole Repair, Haleiwa, Oahu, Hawaii

Freshwater Bayou - Lock to The Gulf, Freshwater Bayou Maintenance Dredging #26-2, ED 26-025

Haleiwa Small Boat Harbor Maintenance Dredging and Revetted Mole Repair, Haleiwa, Oahu, Hawaii

Freshwater Bayou - Lock to The Gulf, Freshwater Bayou Maintenance Dredging #26-2, ED 26-025

ATCHAFALAYA RIVER BAY, BAR, AND CREWBOAT CUT CUTTERHEAD DREDGE NOS. 3-2026, OM26061

ATCHAFALAYA RIVER BAY, BAR, AND CREWBOAT CUT CUTTERHEAD DREDGE NOS. 4-2026, OM26062

ATCHAFALAYA RIVER BAY, BAR, AND CREWBOAT CUT CUTTERHEAD DREDGE NOS. 2-2026, OM26060

ATCHAFALAYA RIVER BAY, BAR, AND CREWBOAT CUT CUTTERHEAD DREDGE NOS. 1-2026, OM26059

Calcasieu River and Pass, LA, Maintenance Dredging FY26, Mile 5.0 to Mile 17.0, Calcasieu and Cameron Parishes, LA

FY2025 IDIQ, Atchafalaya Basin, Gulf Intracoastal Waterway (GIWW) and Miscellaneous Projects Cutterhead Dredge

Mississippi River, Baton Rouge to Gulf, Southwest Pass Hopper Dredge Contract No. 8-2026 (OM26008)