The project “Ciechanowiec – Ostrożany – Reconstruction of the Voivodeship Road No. 690” includes reconstruction with the extension of the road with engineering facilities and the necessary technical infrastructure on a section with a length of approx. 18.95 km from km 22+ 700 to km 41+ 650 (according to the kilometre of the construction project). The task of over 10 km is located in the high-mazowieckie district in the municipality of Ciechanowiec, and further in the Siemiatycki district in the communes of Perlewo and Grodzisk. The Voivodeship Road No. 690 on the section covered by the investment has good horizontal and vertical geometry, apart from small exceptions, and is well inscribed in the field. It runs through a predominantly agricultural area, forest areas, away from larger human clusters and is not a conflict for the environment. The road has a bituminous road width 5.0 ÷ 5.50 m and a crown of width 8.0 ÷ 9,5 m. The surface is in very poor technical condition, has numerous humps, cracks, cavities and holes. The edges of the road are riddled and broken, the roadsides are degraded – often decayed. It should be stated clearly that the state of the road is one of the worst within the entire network of voivodship roads in Podlasie. The planned scope of the works includes: • reconstruction and extension of the road to a width of 7.0 m with roadsides 2 x 1.5 m, • corrections of horizontal and vertical arches, • construction of road-bike line with bituminous surface 3.0 m across the entire length of the project, • reconstruction and construction of individual and public exits • construction and reconstruction of roads of bridge buildings, • construction and reconstruction of bus bays, pavements for pedestrians in their area • construction of roads to control and weighing, vehicles