US Bridges

Oakleigh Road over Herring Run

FairPosted for load

Baltimore County, Maryland · 0.2 MI S of Perring Pkwy · Structure no. 200000B-0081010

Built
1953
72 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
33 ft
1 main span
Daily traffic
7,961
2023 count
Owner
County
County Highway Agency

About this bridge

Oakleigh Road over Herring Run is a concrete slab carrying Oakleigh Road over Herring Run in Baltimore County, Maryland. It was built in 1953, so it is 72 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. Its operating status is: posted for load restriction.

It carries about 7,961 vehicles a day, roughly 5% of them trucks, projected to reach 9,975 by 2045. The structure is 33 ft (10.2 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesOakleigh Road
CrossesHerring Run
Location0.2 MI S of Perring Pkwy
RouteCounty Highway 3429
CountyBaltimore County
StateMaryland
Coordinates39.37341, -76.55989
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
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 rating50 US tons
Inventory rating30 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length33 ft (10.2 m)
Longest span32 ft (9.8 m)
Deck width50 ft (15.2 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,961 (2023)
Projected traffic9,975 by 2045
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Oakleigh Road over Herring Run built?

It was built in 1953, making it 72 years old in 2025.

What condition is Oakleigh Road 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 August 2023.

How much traffic does Oakleigh Road over Herring Run carry?

About 7,961 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Oakleigh Road over Herring Run?

The structure is 33 ft (10.2 m) long with a longest span of 32 ft (9.8 m) and a deck 50 ft wide.

Who owns Oakleigh Road over Herring Run?

It is owned by the County Highway Agency.