US Bridges

Harford Road over Herring Run Trail

Good

Baltimore city, Maryland · 0.4 MI S Argonne Drive · Structure no. 200000BC3214010

Built
2022
3 years old
Condition
Good
inspected April 2024
Type
Arch - Deck
Concrete
Length
28 ft
1 main span
Daily traffic
6,791
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Harford Road over Herring Run Trail is a concrete arch - deck carrying Harford Road over Herring Run Trail in Baltimore city, Maryland. It was built in 2022, so it is 3 years old, younger than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,791 vehicles a day, roughly 3% of them trucks, projected to reach 8,460 by 2044. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesHarford Road
CrossesHerring Run Trail
Location0.4 MI S Argonne Drive
RouteCity Street 147
CountyBaltimore city
StateMaryland
Coordinates39.33258, -76.57815
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating46.4 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1 (+1 approach)
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span28 ft (8.5 m)
Deck width0 ft (0 m)
Roadway width5 ft (1.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,791 (2022)
Projected traffic8,460 by 2044
Trucks3%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesPedestrian / bicycle
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Harford Road over Herring Run Trail built?

It was built in 2022, making it 3 years old in 2025.

What condition is Harford Road over Herring Run Trail in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.

How much traffic does Harford Road over Herring Run Trail carry?

About 6,791 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Harford Road over Herring Run Trail?

The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.5 m).

Who owns Harford Road over Herring Run Trail?

It is owned by the City or Municipal Highway Agency.