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Scientific Services Projects - Requests for Proposals

The Environmental Affairs Division (ENV) manages its contracts for scientific services by issuing requests for proposals (RFPs) to solicit proposals from service providers. ENV issues contracts pursuant to the Texas Transportation Code, Chapter 223, Subchapter D, and 43 TAC 9.80-9.88.

Current RFPs:

Environmental Documentation Services – Houston District 12-5RFPSD001.  TxDOT's Houston District is soliciting proposals for up to four (4) indefinite deliverable scientific services contracts valued at $900,000 each  to perform environmental services for production of environmental documentation that include: production of environmental assessments documentation and documentation to support the determination of categorical exclusions; support services related to development of environmental documentation for permitting activities; and performing support services, including but not limited to, quality assurance/quality control reviews, reviewing NEPA documentation for legal sufficiency, providing reviews of reports of environmental services, managing environmental data, and other tasks related to completing environmental review of the State's transportation projects in the Houston District.

Download the specifications and other required documents on the state Comptroller's Electronic State Business Daily website.

Prospective proposers who have obtained this RFP from TxDOT's website must notify TxDOT of their interest in the RFP if they wish to receive information regarding clarifications or amendments to the RFP package. Proposers who have not notified TxDOT of their interest in the RFP waive all claims to redress if they submit proposals that receive reduced scores because the proposals do not incorporate or respond to clarifications or amendments to the RFP package. Prospective proposers who have downloaded this RFP may notify TxDOT of their interest by email or mail it to the following via United States Postal Service (USPS) mail or commercial delivery to:

Texas Department of Transportation
Attn: Manny Francisco
7600 Washington Avenue
Houston, TX  77007

The notification must contain the RFP number, proposer's name, point of contact, mailing address, voice and fax telephone numbers and email address. All questions or clarifications must be submitted in writing.  

Biological General Services 57-5RFPSB001. TxDOT's Environmental Affairs Division, Natural Resources Management Section, is soliciting proposals for up to five indefinite deliverable, scientific services contract for performing statewide biological services, including karst-related services required for transportation activities under federal and state statutes. Services may include: surveys for protected species and/or habitat of protected species; analysis of stream modifications and associated habitats; biological analysis to support the ESA, section 7 consultation with the U.S. Fish and Wildlife Service (USFWS), preparation of an ESA Biological Assessment (BA) or Biological Evaluation (BE), or ESA section 10.a permit; biological analysis to support impacts characterization, including habitat and species surveys, to migratory birds; biological analysis to support Essential Fish Habitat (EFH) consultations and preparation of EFH Assessment; coordination with state and federal resource agencies; data mining from federal, state, or local entities, universities and/or other resources as necessary to complete the species/habitat assessment; preparation of Biology related sections for environmental documents, including NEPA; habitat assessments, analysis, and presence/absence surveys for protected karst species; geologic Assessments and Solution Feature Plans for karst studies; groundwater and other technical analyses that may support karst invertebrate impacts analysis; geophysical analysis of known or suspected karst features; and other biological support services. 

Download the specifications and other required documents on the state Comptroller's Electronic State Business Daily website.

Prospective proposers who have obtained this RFP from TxDOT’s website must notify TxDOT of their interest in the RFP if they wish to receive information regarding clarifications or amendments to the RFP package. Proposers who have not notified TxDOT of their interest waive all claims to redress if they submit proposals that receive reduced scores because the proposals do not incorporate or respond to clarifications or amendments to the RFP package. Prospective proposers who have downloaded this RFP may notify TxDOT of their interest by email or mail it to the following via U.S. Postal Service mail or commercial delivery to:

Texas Department of Transportation
Natural Resources Management Section - ENV
118 East Riverside Drive
Austin, TX 78704

The notification must contain the RFP number, proposer's name, point of contact, mailing address, voice and fax telephone numbers and email address. All questions or clarifications must be submitted in writing.  

Statewide Environmental Consulting Services – Hazardous Materials 57-5RFPSG001. TxDOT’s Environmental Affairs Division, Pollution Prevention/Abatement Section is soliciting proposals for issuing up to five indefinite deliverable contracts pursuant to the Texas Transportation Code, Chapter 223, Subchapter D, and 43 TAC §§9.80-9.88.  Services to be requested include all non-engineering related work necessary to complete hazardous materials initial environmental site assessments, Phase I and Phase II environmental site assessments, risk-based assessment investigations and evaluations, preventive action/corrective action plans, and project oversight for impacts to TxDOT facilities and rights-of-way statewide. 

Download the specifications and other required documents on the state Comptroller's Electronic State Business Daily website.

Prospective proposers who have obtained this RFP from TxDOT’s website must notify TxDOT of their interest in the RFP if they wish to receive information regarding clarifications or amendments to the RFP package. Proposers who have not notified TxDOT of their interest in the RFP waive all claims to redress if they submit proposals that receive reduced scores because the proposals do not incorporate or respond to clarifications or amendments to the RFP package. Prospective proposers who have downloaded this RFP may notify TxDOT of their interest by email or mail it to the following via United States Postal Service (USPS) mail or commercial delivery to:

Texas Department of Transportation
Pollution Prevention/Abatement Section - ENV
118 East Riverside Drive
Austin, TX 78704

The notification must contain the RFP number, proposer’s name, point of contact, mailing address, voice and fax telephone numbers and email address. All questions or clarifications must be submitted in writing.