US Bridges

Loch Raven Drive over Towson Run

Fair

Baltimore city, Maryland · 0.9 MI E Cromwell Brdg RD · Structure no. 200000BC6509010

Built
1879
146 years old, rebuilt 1912
Condition
Fair
inspected August 2024
Type
Arch - Deck
Masonry
Length
34 ft
1 main span
Daily traffic
896
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Loch Raven Drive over Towson Run is a masonry arch - deck carrying Loch Raven Drive over Towson Run in Baltimore city, Maryland. It was built in 1879 and reconstructed in 1912, so it is 146 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 896 vehicles a day, roughly 5% of them trucks, projected to reach 1,093 by 2040. The structure is 34 ft (10.4 m) long and 43 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesLoch Raven Drive
CrossesTowson Run
Location0.9 MI E Cromwell Brdg RD
RouteCity Street 4630
CountyBaltimore city
StateMaryland
Coordinates39.42729, -76.545
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating36 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans1
Design loadUnknown
Structure length34 ft (10.4 m)
Longest span30 ft (9.1 m)
Deck width43 ft (13 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic896 (2020)
Projected traffic1,093 by 2040
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$23,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Loch Raven Drive over Towson Run built?

It was built in 1879, making it 146 years old in 2025. It was reconstructed in 1912.

What condition is Loch Raven Drive 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 2024.

How much traffic does Loch Raven Drive over Towson Run carry?

About 896 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Loch Raven Drive over Towson Run?

The structure is 34 ft (10.4 m) long with a longest span of 30 ft (9.1 m) and a deck 43 ft wide.

Who owns Loch Raven Drive over Towson Run?

It is owned by the City or Municipal Highway Agency.