US Bridges

Colbury Road over Tributary to Herring Run

Fair

Baltimore County, Maryland · 0.01 MI W of Goucher Blvd · Structure no. 200000B-0399030

Built
1968
57 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
29 ft
Daily traffic
4,763
2023 count
Owner
County
County Highway Agency

About this bridge

Colbury Road over Tributary to Herring Run is a concrete culvert carrying Colbury Road over Tributary to Herring Run in Baltimore County, Maryland. It was built in 1968, so it is 57 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 4,763 vehicles a day, roughly 5% of them trucks, projected to reach 6,672 by 2043. The structure is 29 ft (8.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesColbury Road
CrossesTributary to Herring Run
Location0.01 MI W of Goucher Blvd
RouteCounty Highway 3376
CountyBaltimore County
StateMaryland
Coordinates39.3847, -76.58025
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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating66 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans0
Design loadHS 20
Structure length29 ft (8.7 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,763 (2023)
Projected traffic6,672 by 2043
Trucks5%
Lanes on structure4
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Colbury Road over Tributary to Herring Run built?

It was built in 1968, making it 57 years old in 2025.

What condition is Colbury 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 July 2023.

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

About 4,763 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Colbury Road over Tributary to Herring Run?

The structure is 29 ft (8.7 m) long with a longest span of 11 ft (3.4 m).

Who owns Colbury Road over Tributary to Herring Run?

It is owned by the County Highway Agency.