US Bridges

Malvern Avenue over Towson Run

Fair

Baltimore County, Maryland · 0.1 MI W Charles ST · Structure no. 200000B-0127010

Built
1910
115 years old, rebuilt 1974
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
27 ft
1 main span
Daily traffic
2,373
2023 count
Owner
County
County Highway Agency

About this bridge

Malvern Avenue over Towson Run is a concrete slab carrying Malvern Avenue over Towson Run in Baltimore County, Maryland. It was built in 1910 and reconstructed in 1974, so it is 115 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 2,373 vehicles a day, roughly 5% of them trucks, projected to reach 3,647 by 2045. The structure is 27 ft (8.2 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMalvern Avenue
CrossesTowson Run
Location0.1 MI W Charles ST
RouteCounty Highway 1421
CountyBaltimore County
StateMaryland
Coordinates39.39366, -76.62987
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span23 ft (7 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,373 (2023)
Projected traffic3,647 by 2045
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Malvern Avenue over Towson Run built?

It was built in 1910, making it 115 years old in 2025. It was reconstructed in 1974.

What condition is Malvern Avenue over Towson Run 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 Malvern Avenue over Towson Run carry?

About 2,373 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Malvern Avenue over Towson Run?

The structure is 27 ft (8.2 m) long with a longest span of 23 ft (7 m) and a deck 27 ft wide.

Who owns Malvern Avenue over Towson Run?

It is owned by the County Highway Agency.