STATE & LOCAL TRUCK ROUTES
TxDOT Non-Radioactive Hazardous Materials Route (NRHMR)
The Texas Department of Transportation (TxDOT) is the state routing agency in charge of approving all non-radioactive hazardous materials (NRHM) routes in Texas. A statewide listing of NRHM routes and maps showing the limits of these routes is available online on the Non-Radioactive Hazardous Materials Routing Publications page of the TxDOT website. The Texas Department of State Health Services is responsible for radioactive hazardous materials routing.
Rules for NRHM routing are contained in the Texas Administrative Code under Title 43, Sections 25.101-25.104. These rules authorize a political subdivision of a state to establish NRHM route designations consistent with federal regulations (Title 49, Code of Federal Regulations (C.F.R.), Part 397, Subpart C ).
A city or political subdivision cannot simply pass an ordinance to establish an NRHM route. A new NRHM route or modification to an existing route must be established in accordance with the state and federal regulations listed above.
In establishing or revising an NRHM route, a political subdivision must comply with both federal and state regulations for NRHM routing, including 49 C.F.R. Part 397 and 49 C.F.R. Part 171 (Federal); and 43 Texas Administrative Code (T.A.C.), Sections 25.101-25.104 (State).
- The following link will direct you to detailed information on the current TxDOT NRHMRs in the State of Texas.
- Click the icon below to view the TxDOT NRHMR Interactive Map (TxDOT Open Data Portal)
State & Local NRHMR (MPO Boundary)
TxDOT — NRHMR (City Of Laredo)
TxDOT — NRHMR (County of Webb)
The City of Laredo Truck Route includes streets that are designated to carry heavy commercial traffic to and from their destinations. As per the Texas Department of Transportation (TxDOT), local authorities may adopt traffic regulations controlling the movement of trucks on public roads within their jurisdiction consistent with state law. By passage and enforcement of a city ordinance/resolution, a city may reroute trucks from a certain highway route within their corporate limits to an alternate highway route within their city limits.
The Texas Department of Transportation (TxDOT) has no legal authority to prohibit the use of any highway by any class of vehicle. In other words, TxDOT cannot discriminate between types of vehicles as long as they are within the weight and size limits established by law. TxDOT’s authority is covered in the Texas Transportation Code, Chapter 201, Subchapter K, Section 201.901, “Prohibiting Use of Highway Road.”
Click the icon below to view the Interactive City of Laredo Truck Route Map (City of Laredo Open Data GIS Portal)