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Interstate-384 EB over Birch Mountain Brook

Hartford County, Connecticut · rated Fair in the 2025 National Bridge Inventory

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

Interstate-384 EB over Birch Mountain Brook in Hartford County, Connecticut, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
It was built in 1970, making it 55 years old at the 2025 inventory.
It carries about 18,400 vehicles a day (traffic count year 2021).
Its listed owner is the state highway agency.
It is one of 663 of the 916 inventoried bridges in Hartford County rated fair (72.4%); 32 (3.5%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Continuous steel stringer or multi-beam girder
Length	about 267 ft
Location	at Exit 4
NBI structure number	03592
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Interstate-91 over Goff Brook	1964	143,400	Fair
Interstate-84 over Connecticut River	1906	135,200	Fair
Interstate-91 over Beaver Brook	1964	130,000	Fair
I-84 Amtrak Ctfa over No. Branch of Park River	1964	129,200	Fair
Interstate-84 over Rockledge Brook	1965	128,200	Fair
Interstate-84 EB over US Route 44 Eastbound	1964	122,600	Fair