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Glenville Road over Mill Brook

Harford County, Maryland · rated Poor in the 2025 National Bridge Inventory

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

Glenville Road over Mill Brook in Harford County, Maryland, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
It was built in 1930 and reconstructed in 1935, making it 95 years old at the 2025 inventory.
It carries about 816 vehicles a day (traffic count year 2020).
Its listed owner is the county highway agency.
It is one of 12 of the 276 inventoried bridges in Harford County rated poor (4.3%); 12 (4.3%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Steel stringer or multi-beam girder
Length	about 38 ft
Location	2.1 Miles NE of Md 22
NBI structure number	200000H-0030010
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
I-95 over Winters Run Rd Winters R	1963	161,591	Fair
I-95 over James Run	1963	130,492	Fair
I-95 over Grays Run	1963	116,162	Good
I-95 over Carsins Run	1963	100,386	Good
I-95 over Swan Creek	1963	100,386	Fair
I-95 over Md 462	1963	95,675	Fair