JavaScript is required to use content on this page. Please enable JavaScript in your browser.
Our website will undergo scheduled maintenance on December 15th from 7 am to 4 pm. During this period, you will experience temporary disruptions. We apologize for any inconvenience and appreciate your understanding. Link
The Qualified Product and Producer lists posted on this page provide sources of materials and material producers that have been qualified by the Maryland State Highway Administration (SHA) for use on Maryland State projects. This page is a reference for source of supply approval and does not imply that materials may be used on SHA projects without normal Quality Assurance (QA) testing and procedures.
Each list item was submitted, tested and approved. Approval procedures are posted with each material category. Contact SHA for any additional information.
When a product or producer is approved or updates/edits are made, a new revised copy of the qualified list is posted online. Refer to the date at the bottom-right of the list page for the most recent update.
Please direct any questions concerning each list to the appropriate product or producer manager. See the related material category Product or Producer Qualification Procedure for contact information.
For Federally funded projects advertised after November 10, 2022, certificates of compliance with the Build America, Buy America Act will be required from product manufacturers or producers for all iron, steel, and construction materials.
SHA Traffic Barrier TeamPhone: 410-582-5546Email: shatrafficbarriers@mdot.maryland.gov
Since December 31, 2019, SHA has been using MASH 2016-compliant devices for new permanent installations and maintenance replacements on National Highway System (NHS) routes. Exceptions may apply when one of the following occurs:
Top of Page
David Malburg, Division Chief Phone: 443-572-5298 Toll Free: 866-926-8501 Fax: 410-787-0461 Email: DMalburg@mdot.maryland.gov
Vicki Stewart, Division Chief Phone: 443-572-5134 Toll Free: 866-926-8501 Email: VStewart@mdot.maryland.gov
Rebeccah Smith, Assistant Division Chief Phone: 443-572-5112 Toll Free: 866-926-8501 Fax: 410-787-0482 Email: RSmith8@mdot.maryland.gov
Dr. Intikhab Haider, Division Chief Phone: 443-572-5055 Toll Free: 866-926-8501 Fax: 410-787-0464Email: IHaider2@mdot.maryland.gov
Eric Waltman, Office of Traffic and Safety Phone: 410-787-5878 Toll Free: 888-963-0307 Fax: 410-582-9469 Email: EWaltman@mdot.maryland.gov
Timothy Briner, Transportation Design Engineer Phone: 410-545-8409 Toll Free: 888-375-1084 Fax: 410-209-5002 Email: TBriner@mdot.maryland.gov
Contact our Office of Structures (OOS) about approval of noise barrier systems.
Randy Knieriem, Structures Engineering Division Phone: 410-545-8360 Toll Free: 888-375-1084 Fax: 410-209-5002 Email: RKnieriem@mdot.maryland.gov
Contact Office of Structures (OOS) regarding approval of retaining walls.
David Rosen, Team Leader, Precast/Prestressed Concrete, Office of Materials Technology (OMT) Phone: 410-375-4424 Toll Free: 866-926-8501 Fax: 410-787-8324 Email: DRosen@mdot.maryland.gov
Contact Office of Materials Technology (OMT) for certification inspections of Precast Noise Barrier System plants.
We're available on the following channels.