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Rt Tt S over Portage Byu

New Madrid County, Missouri · rated Good in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Rt Tt S over Portage Byu in New Madrid County, Missouri, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 1963 and reconstructed in 2012, making it 62 years old at the 2025 inventory.
It carries about 159 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 150 of the 283 inventoried bridges in New Madrid County rated good (53.0%); 13 (4.6%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Prestressed concrete tee beam
Length	about 102 ft
Location	S 2 T 20 N R 13 E
NBI structure number	8367
Condition class	Good

Source: FHWA National Bridge Inventory, 2025 data as reported by the Missouri department of transportation.

Bridge	Built	Vehicles/day	Condition
US 60 E over Otter Slu Dtch	1958	13,603	Fair
Is 55 S over N Cut Dtch	1964	10,882	Poor
Is 55 S over St Johns Dtch	1964	10,882	Fair
Is 55 N over N Cut Dtch	1964	10,439	Fair
Is 55 N over St Johns Dtch	1964	10,439	Fair
Is 55 N over BNSF RR	1964	10,416	Fair