US Bridges

Mcdonogh Road over Gwynns Falls

Fair

Baltimore County, Maryland · 0.15 MI W of Is 795 · Structure no. 200000B-0596010

Built
1941
84 years old, rebuilt 2010
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
135 ft
3 main spans
Daily traffic
16,775
2023 count
Owner
County
County Highway Agency

About this bridge

Mcdonogh Road over Gwynns Falls is a steel continuous stringer/multi-beam or girder carrying Mcdonogh Road over Gwynns Falls in Baltimore County, Maryland. It was built in 1941 and reconstructed in 2010, so it is 84 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 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 16,775 vehicles a day, roughly 5% of them trucks, projected to reach 23,277 by 2045. The structure is 135 ft (41.1 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesMcdonogh Road
CrossesGwynns Falls
Location0.15 MI W of Is 795
RouteCounty Highway 0
CountyBaltimore County
StateMaryland
Coordinates39.39129, -76.76509
Functional classUrban 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
Deck7 GoodSome minor problems.
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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.5 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length135 ft (41.1 m)
Longest span50 ft (15.2 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,775 (2023)
Projected traffic23,277 by 2045
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$310,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Mcdonogh Road over Gwynns Falls built?

It was built in 1941, making it 84 years old in 2025. It was reconstructed in 2010.

What condition is Mcdonogh Road 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 November 2023.

How much traffic does Mcdonogh Road over Gwynns Falls carry?

About 16,775 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Mcdonogh Road over Gwynns Falls?

The structure is 135 ft (41.1 m) long with a longest span of 50 ft (15.2 m) and a deck 35 ft wide.

Who owns Mcdonogh Road over Gwynns Falls?

It is owned by the County Highway Agency.