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Tower Grove Ave S over Is 64 Rp Boyle Ave to I

St. Louis city, Missouri · rated Good in the 2025 National Bridge Inventory

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

Tower Grove Ave S over Is 64 Rp Boyle Ave to I in St. Louis city, 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 2014, making it 11 years old at the 2025 inventory.
It carries about 9,215 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 78 of the 239 inventoried bridges in St. Louis city rated good (32.6%); 22 (9.2%) 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 stringer or multi-beam girder
Length	about 209 ft
Location	S 17 T 45 N R 7 E
NBI structure number	34265
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Is 64 E over Cst Mccausland Ave	2008	159,584	Good
Is 70 E over Mo 367	1999	137,346	Fair
Is 55 S over Cst S Lenore K Sulliva	1963	120,209	Fair
Is 70 E over Cst Branch St	1999	113,474	Fair
Is 70 E over Cst Angelica St	1999	100,176	Fair
Is 70 E over St Louis Terminal	1999	95,646	Fair