US Bridges

Argonne Drive over Herring Run

Fair

Baltimore city, Maryland · 0.2 MI W Harford RD · Structure no. 200000BC3401010

Built
1958
67 years old, rebuilt 2011
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
385 ft
5 main spans
Daily traffic
6,200
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Argonne Drive over Herring Run is a steel stringer/multi-beam or girder carrying Argonne Drive over Herring Run in Baltimore city, Maryland. It was built in 1958 and reconstructed in 2011, so it is 67 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 6,200 vehicles a day, roughly 5% of them trucks, projected to reach 7,800 by 2042. The structure is 385 ft (117.3 m) long and 57 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesArgonne Drive
CrossesHerring Run
Location0.2 MI W Harford RD
RouteCity Street 1100
CountyBaltimore city
StateMaryland
Coordinates39.33916, -76.57762
Functional classUrban Minor 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94 US tons
Inventory rating56.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadHS 25 or greater
Structure length385 ft (117.3 m)
Longest span76 ft (23.2 m)
Deck width57 ft (17.3 m)
Roadway width44 ft (13.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,200 (2022)
Projected traffic7,800 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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$13,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Argonne Drive over Herring Run built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2011.

What condition is Argonne Drive over Herring 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 January 2024.

How much traffic does Argonne Drive over Herring Run carry?

About 6,200 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Argonne Drive over Herring Run?

The structure is 385 ft (117.3 m) long with a longest span of 76 ft (23.2 m) and a deck 57 ft wide.

Who owns Argonne Drive over Herring Run?

It is owned by the City or Municipal Highway Agency.