US Bridges

Deanwood Road over Tributary to Herring Run

Fair

Baltimore County, Maryland · 0.2 MI E of Md RTE 542 · Structure no. 200000B-0337020

Built
1966
59 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
4,715
2023 count
Owner
County
County Highway Agency

About this bridge

Deanwood Road over Tributary to Herring Run is a concrete culvert carrying Deanwood Road over Tributary to Herring Run in Baltimore County, Maryland. It was built in 1966, so it is 59 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 4,715 vehicles a day, roughly 10% of them trucks, projected to reach 5,137 by 2043. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesDeanwood Road
CrossesTributary to Herring Run
Location0.2 MI E of Md RTE 542
RouteCounty Highway 3400
CountyBaltimore County
StateMaryland
Coordinates39.37787, -76.57644
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating68 US tons
Inventory rating40.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,715 (2023)
Projected traffic5,137 by 2043
Trucks10%
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$22,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Deanwood Road over Tributary to Herring Run built?

It was built in 1966, making it 59 years old in 2025.

What condition is Deanwood Road over Tributary to 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 October 2023.

How much traffic does Deanwood Road over Tributary to Herring Run carry?

About 4,715 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Deanwood Road over Tributary to Herring Run?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m).

Who owns Deanwood Road over Tributary to Herring Run?

It is owned by the County Highway Agency.