US Bridges

Md 7 over Little Gunpowder Falls

Fair

Baltimore County, Maryland · On Harford CO Line · Structure no. 100000030012010

Built
1928
97 years old
Condition
Fair
inspected November 2024
Type
Arch - Deck
Concrete
Length
104 ft
2 main spans
Daily traffic
8,520
2009 count
Owner
State
State Highway Agency

About this bridge

Md 7 over Little Gunpowder Falls is a concrete arch - deck carrying Md 7 over Little Gunpowder Falls in Baltimore County, Maryland. It was built in 1928, so it is 97 years old, older than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 8,520 vehicles a day, roughly 8% of them trucks, projected to reach 8,636 by 2026. The structure is 104 ft (31.7 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMd 7
CrossesLittle Gunpowder Falls
LocationOn Harford CO Line
RouteState Highway 7
CountyBaltimore County
StateMaryland
Coordinates39.42426, -76.37778
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.5 US tons
Inventory rating42.4 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length104 ft (31.7 m)
Longest span45 ft (13.7 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,520 (2009)
Projected traffic8,636 by 2026
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$185,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 7 over Little Gunpowder Falls built?

It was built in 1928, making it 97 years old in 2025.

What condition is Md 7 over Little Gunpowder Falls in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2024.

How much traffic does Md 7 over Little Gunpowder Falls carry?

About 8,520 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 7 over Little Gunpowder Falls?

The structure is 104 ft (31.7 m) long with a longest span of 45 ft (13.7 m) and a deck 27 ft wide.

Who owns Md 7 over Little Gunpowder Falls?

It is owned by the State Highway Agency.