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Land Surveying & Bathymetry

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 Ulster County involves performing field surveying and terrain data collection to support flood study projects. The selected provider will conduct field surveys of the lower Esopus Creek reach, execute bathymetric surveys of the creek bed, and collect specific structure data for 11 hydraulic structures to facilitate the development of terrain datasets and digital elevation models. To qualify for this engagement, the contractor must hold a New York State Professional Land Surveyor license and utilize high-precision GPS and GNSS equipment. The final deliverables include comprehensive survey data, detailed field notes, and bathymetric information. The response deadline for this opportunity is October 16, 2026.

General Info

NY licensed surveyor to perform field and bathymetric surveys for Ulster County flood studies.

Agency

New York → Ulster CountyView Agency

NAICS

541370 - Surveying and Mapping (except Geophysical) 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 field surveying and terrain data collection for prime contractors on Ulster County flood study projects. Conducts field surveys of the lower Esopus Creek reach, performs bathymetric surveys of the creek bed, and collects structure data for 11 hydraulic structures to develop terrain datasets and DEMs. Requires NYS Professional Land Surveyor (PLS) license and high-precision GPS/GNSS. Delivers final survey data, field notes, and bathymetric information.

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LOWER ESOPUS CREEK FLOOD STUDY

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Ulster County is soliciting proposals from qualified engineering consulting firms to conduct a comprehensive update of base flood elevations for the lower portion of the Esopus Creek. The project covers approximately 32 linear stream miles from the Ashokan Reservoir to the Hudson River, encompassing an estimated 230 square miles. The scope of work includes surveying, terrain development, hydrologic and hydraulic modeling using HEC-HMS and HEC-RAS, floodway analysis, and floodplain mapping. Key deliverables include revised Special Flood Hazard Areas, updates to up to 12 Flood Insurance Rate Map panels, and the creation of FEMA database products. All work must adhere to FEMA standards and be subject to review and comments from NYCDEP and NYSDEC. The contract has a performance period of 12 months. Proposals are due by October 16, 2026, and must be submitted in a sealed opaque envelope containing an unbound original, one photocopy, and an electronic copy on a CD or thumb drive. Evaluation is based on a weighted system: 45 points for the overall service plan, 45 points for qualifications and experience, and 10 points for the fee proposal. Preferred firms will have significant experience in FEMA floodplain modeling, particularly downstream of reservoirs or dams. Selected firms must comply with New York State labor laws, including prevailing wage requirements, and meet specific NYCDEP intergovernmental agreement provisions. Payment is processed monthly with a 60-day remittance period following approval by the Department Head and County Comptroller.

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