US Bridges

Md 140 over Gwynns Falls

Fair

Baltimore County, Maryland · 0.20 MI N of Md 940 · Structure no. 100000030084010

Built
1973
52 years old
Condition
Fair
inspected June 2024
Type
Slab
Prestressed Concrete
Length
73 ft
2 main spans
Daily traffic
33,480
2009 count
Owner
State
State Highway Agency

About this bridge

Md 140 over Gwynns Falls is a prestressed concrete slab carrying Md 140 over Gwynns Falls in Baltimore County, Maryland. It was built in 1973, so it is 52 years old, younger 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 6 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 33,480 vehicles a day, roughly 8% of them trucks, projected to reach 42,327 by 2026. The structure is 73 ft (22.3 m) long and 70 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

No coordinates are recorded for this structure.

CarriesMd 140
CrossesGwynns Falls
Location0.20 MI N of Md 940
RouteState Highway 140
CountyBaltimore County
StateMaryland
Functional classUrban Other Principal 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68 US tons
Inventory rating40.5 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length73 ft (22.3 m)
Longest span36 ft (11 m)
Deck width70 ft (21.3 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,480 (2009)
Projected traffic42,327 by 2026
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 140 over Gwynns Falls built?

It was built in 1973, making it 52 years old in 2025.

What condition is Md 140 over Gwynns 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 June 2024.

How much traffic does Md 140 over Gwynns Falls carry?

About 33,480 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 140 over Gwynns Falls?

The structure is 73 ft (22.3 m) long with a longest span of 36 ft (11 m) and a deck 70 ft wide.

Who owns Md 140 over Gwynns Falls?

It is owned by the State Highway Agency.