# MT-251 highway infrastructure and usage

> Live situation record from CLSTR: https://clstr.news/situations/mt-251-highway-infrastructure-and-usage
> Updated: 2026-09-03T16:32:00.000Z. Sources: 5. Developments: 2.

The MT-251 highway, which connects Cuiabá to Chapada dos Guimarães, has been the subject of environmental and logistical developments.

In August 2026, the Chico Mendes Institute for Biodiversity Conservation (ICMBio) issued an unfavorable opinion regarding the proposed duplication of the highway through the Chapada dos Guimarães National Park. While the Mato Grosso State Secretariat of Infrastructure and Logistics (Sinfra) maintains that the duplication and the construction of a tunnel at Portão do Inferno are essential for traffic safety and flow, the project faced this environmental rejection.

By September 2026, the highway was subject to a scheduled total closure of a 12-kilometer stretch between km 39 and km 51 to accommodate the Bota para Correr Olympikus 2026 race.

## Timeline

### 2026-09-03: MT-251 highway closure scheduled near Cuiabá

The MT-251 highway between Cuiabá and Chapada dos Guimarães will be closed this Sunday from 5:30 AM to 9:30 AM for a running event.

5 sources. https://clstr.news/cluster/mt-251-highway-closure-scheduled-near-cuiab

### 2026-08-14: ICMBio rejects MT-251 highway duplication in Chapada dos Guimarães

ICMBio has rejected the plan to duplicate the MT-251 highway through Chapada dos Guimarães National Park, prompting the Mato Grosso government to seek alternative ways to ensure road safety.

5 sources. https://clstr.news/cluster/icmbio-denies-mt-251-highway-duplication-in-chapada-dos-guimares

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Cite as: MT-251 highway infrastructure and usage. CLSTR, https://clstr.news/situations/mt-251-highway-infrastructure-and-usage