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Hydrologic & Hydraulic (H&H) Modeling

Active

State & Local

Response Deadline10/16/2026, 04:00:00 AM UTC

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

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This subcontract for Hydrologic and Hydraulic Modeling involves performing water flow analysis and computer modeling for prime contractors on Ulster County flood study projects. The scope of work requires the development of 2D hydraulic models using HEC-RAS and hydrologic analysis via HEC-HMS, specifically focusing on Ashokan Reservoir pool elevations and the calibration of models against USGS stream gage records. All deliverables must strictly adhere to FEMA Risk MAP standards. The contractor is responsible for providing final HEC-HMS and HEC-RAS project files along with comprehensive technical documentation. This opportunity is associated with NAICS code 541330 and is managed by Ulster County in New York. The response deadline for this solicitation is October 16, 2026.

General Info

Subcontract for HEC-RAS/HMS flood modeling in Ulster County, New York, due October 2026.

Agency

New York → Ulster CountyView Agency

NAICS

541330 - Engineering ServicesView NAICS

Place of Performance

NY, USA

Set-Aside

NONE

Documents

This scope was carved out of RFP-UC26-048.

The full solicitation package (2 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

LOWER ESOPUS CREEK FLOOD STUDY

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Timeline

PostedSep 18

subcontract

Response DeadlineOct 16

Submission deadline

Response Deadline

10/16/2026, 04:00:00 AM UTCin 27 days

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Organization & Contact Information

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AgencyNew York → Ulster County

ContactsNo contacts available

OfficeN/A

Organization / Agency

New York → Ulster County

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Office AddressN/A

ContactsNo contact information available

Full Description

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Performs water flow analysis and computer modeling for prime contractors on Ulster County flood study projects. Develops 2D hydraulic models using HEC-RAS and hydrologic analysis using HEC-HMS, analyzing Ashokan Reservoir pool elevations and calibrating models against USGS stream gage records. Work must adhere to FEMA Risk MAP standards. Delivers final HEC-HMS and HEC-RAS project files and technical documentation.

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