US Bridges

Md 165 over Little Gunpowder Falls

Fair

Baltimore County, Maryland · On Harford CO Line · Structure no. 100000030100010

Built
1931
94 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
63 ft
1 main span
Daily traffic
7,011
2009 count
Owner
State
State Highway Agency

About this bridge

Md 165 over Little Gunpowder Falls is a steel stringer/multi-beam or girder carrying Md 165 over Little Gunpowder Falls in Baltimore County, Maryland. It was built in 1931, so it is 94 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 7,011 vehicles a day, roughly 8% of them trucks, projected to reach 9,329 by 2026. The structure is 63 ft (19.2 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

No coordinates are recorded for this structure.

CarriesMd 165
CrossesLittle Gunpowder Falls
LocationOn Harford CO Line
RouteState Highway 165
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.5 US tons
Inventory rating23 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length63 ft (19.2 m)
Longest span61 ft (18.6 m)
Deck width31 ft (9.4 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,011 (2009)
Projected traffic9,329 by 2026
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$128,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 165 over Little Gunpowder Falls built?

It was built in 1931, making it 94 years old in 2025.

What condition is Md 165 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 August 2023.

How much traffic does Md 165 over Little Gunpowder Falls carry?

About 7,011 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 165 over Little Gunpowder Falls?

The structure is 63 ft (19.2 m) long with a longest span of 61 ft (18.6 m) and a deck 31 ft wide.

Who owns Md 165 over Little Gunpowder Falls?

It is owned by the State Highway Agency.