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Mo 13 N over US 54

St. Clair County, Missouri · rated Good in the 2025 National Bridge Inventory

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

Mo 13 N over US 54 in St. Clair 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 2006, making it 19 years old at the 2025 inventory.
It carries about 7,409 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 36 of the 139 inventoried bridges in St. Clair County rated good (25.9%); 27 (19.4%) 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	Continuous prestressed concrete stringer or multi-beam girder
Length	about 191 ft
Location	S 12 T 36 N R 25 W
NBI structure number	31638
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Mo 13 S over Gallinipper CR Br	1963	17,473	Fair
Mo 13 S over Coon CR	2006	14,028	Fair
Mo 13 S over Coon CR	2006	12,790	Good
Mo 13 S over Osage Rvr (truman	1974	11,746	Fair
Mo 13 N over Osage Rvr (truman	2000	9,080	Fair
Mo 13 N over Otter CR	1963	8,984	Poor