Inter-Fluve, Inc.

Inter-Fluve, Inc., an employee-owned Subchapter S corporation based in Hood River, Oregon, delivers aquatic ecosystem restoration engineering, habitat program design, water infrastructure consulting, and architect-engineer environmental services to federal agencies as a prime contractor across multiple indefinite delivery contracts and blanket purchase agreements. The firm competes exclusively in full-and-open and Total Small Business set-aside procurements, with no history of subcontracting; it performs all federal work in-house across 100% of its award portfolio.

The vendor's federal customer base is heavily concentrated with the Department of the Interior Bureau of Reclamation, which accounts for 122 awards (78% of award count) representing $74.5 million in combined potential value. By dollar magnitude, however, the Department of Commerce National Oceanic and Atmospheric Administration dominates the portfolio: 9 awards worth $3.05 billion in combined potential value, driven primarily by a $50 million single-award indefinite delivery contract for Regional Architect-Engineer Environmental Services covering the Northeastern U.S. Atlantic and Great Lakes region (awarded August 31, 2023, through August 30, 2028). The tension between the two rankings reflects the gap between delivery-order volume at Reclamation (which places frequent modest-value task orders) and NOAA's large parent vehicles with substantial ceiling values. The Department of Agriculture Forest Service, Department of the Army Corps of Engineers, and Fish and Wildlife Service round out the active set. Recent representative work includes a $1.688 million delivery order from NOAA (September 2026) for engineer and technical support for hydropower and fish passage consultations through September 2028; a $771 thousand delivery order from NOAA for regional architect-engineer environmental services supporting the Allegan City Dam channel and floodplain restoration in Michigan (September 2026); and a $280 thousand delivery order from the Bureau of Reclamation for final design and construction support on the New River Valley Ranch Phase 2 project (July 2026).

Inter-Fluve's vehicle position anchors on five principal indefinite delivery vehicles. The Reclamation Tributary Habitat Program Architect-Engineer IDC for Oregon and Washington (Contract 140R1019D0002, $12 million ceiling, January 18, 2024–January 16, 2029) carries 58 delivery orders worth $9.9 million. The Reclamation Tributary Habitat Program Architect-Engineer IDC for Idaho (Contract 140R1024D0001, $12 million ceiling, October 27, 2023–November 28, 2028) carries 13 delivery orders worth $3 million. The USDA Forest Service Land Management Integrated Resources National BPA (single-award, $50 million ceiling, January 18, 2024–March 6, 2033) serves as a secondary vehicle for natural resources consulting and restoration work across the country. The NOAA Regional Architect-Engineer Environmental Services IDIQ for the Northeastern U.S. Atlantic and Great Lakes region holds a $50 million ceiling and has generated four task orders totaling approximately $469 thousand through the source date. A fourth Reclamation Tributary Habitat Program contract (Contract 140R1024D0002, $12 million ceiling) carries 24 task orders worth $3.8 million. These vehicles define the vendor's primary federal footprint: habitat restoration design and construction support, environmental compliance engineering, GIS and hydraulic modeling, feasibility studies, and construction observation across the Pacific Northwest and Northeast regions.

Activity was robust in 2024 with 28 awards but declined to 15 awards in 2025 and 7 in the first three quarters of 2026. Within the next twenty-four months, eighteen awards worth a combined $7.9 million will reach ultimate completion, creating recompete exposure on a portfolio where delivery-order turnover is continuous but individual ceiling values remain modest (most single task orders fall between $50 thousand and $500 thousand). The firm's award history extends back to September 1992, indicating multi-decade tenure in federal habitat restoration contracting.

Service Contract Inventory data captures only a partial and heavily threshold-biased slice of Inter-Fluve's federal services activity. SCI-reportable invoiced revenue totaled $1.5 million across FY2022–FY2024 (FY2025 carries zero SCI records in the source), with FY2024 invoicing of $696 thousand. Government-paid hourly rates on SCI-reportable service contracts ranged from $1,179.57 per hour at the tenth percentile to $5,814.47 per hour at the ninety percentile, with a median senior-labor rate of $3,404.19 per hour. FTE trajectory shows negligible scale — the SCI dataset reports 0.1 FTEs per year across FY2022–FY2024 — a figure that reflects only the subset of contracts above the $150,000 reporting threshold and excludes goods, products, and smaller deliveries that likely constitute the bulk of the firm's federal engagement. Across all SCI-reportable prime records, the vendor engaged no named subcontractors; 0% of hours were performed by subs.

Inter-Fluve operates under a single corporate structure with no named subsidiaries visible in the source. The firm's capability set aligns tightly with its primary Reclamation vehicles: preliminary design (15%, 30%, 60%, 80%) and final design phases, construction support and engineering observation, environmental compliance assistance, GIS analysis and hydraulic modeling, feasibility evaluations, surveying and site assessments, data collection and statistical analysis, and project documentation for river and floodplain restoration initiatives. NAICS concentration runs heavily to 541330 (Engineering Services) across 131 awards, with secondary activity in 541620 (Environmental Consulting Services, 8 awards) and 562910 (Remediation Services, 7 awards). The vendor's competitive posture is set-aside-heavy on Reclamation's Total Small Business vehicles, reflecting its small-business status, while competing full-and-open on the larger NOAA vehicle and USDA Forest Service BPA.

Specializing in investigations, design &

restoration of aquatic ecosystems. Environmental, ecological, water resources engineering, sustainable design, restoration and construction of rivers lakes wetlands dam removals and aquatic ecosystems. Floodplain, watershed, dam removal, bank stabilization, fish passage, aquatic habitat.