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Md 5 Nbr over Md 231

Charles County, Maryland · rated Good in the 2025 National Bridge Inventory

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

Md 5 Nbr over Md 231 in Charles County, Maryland, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
It was built in 2006, making it 19 years old at the 2025 inventory.
It carries about 17,551 vehicles a day (traffic count year 2006).
Its listed owner is the state highway agency.
It is one of 42 of the 94 inventoried bridges in Charles County rated good (44.7%); 8 (8.5%) 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 188 ft
Location	1.85 M N of St Marys Co
NBI structure number	100000080052011
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Md 5 SB over Zekiah Swamp	1931	41,209	Fair
Md 228 over Piney Branch	1957	39,800	Fair
Md 228 EB over Mattawoman Creek	1995	39,800	Good
Md 228 WB over Mattawoman Creek	1995	39,800	Good
Md 5 Nbr over Trib to Jordan Swamp	1964	38,312	Good
Md 5 NB over Zekiah Swamp	1966	37,490	Fair