US Bridges

Birmingham Avenue over Tributary to Herring Run

Fair

Baltimore County, Maryland · 0.10 MI N. of Taylor Ave. · Structure no. 200000B-0320020

Built
1954
71 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
23 ft
Daily traffic
630
2023 count
Owner
County
County Highway Agency

About this bridge

Birmingham Avenue over Tributary to Herring Run is a concrete culvert carrying Birmingham Avenue over Tributary to Herring Run in Baltimore County, Maryland. It was built in 1954, so it is 71 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.

It carries about 630 vehicles a day, roughly 10% of them trucks, projected to reach 790 by 2045. The structure is 23 ft (7.1 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesBirmingham Avenue
CrossesTributary to Herring Run
Location0.10 MI N. of Taylor Ave.
RouteCounty Highway 3697
CountyBaltimore County
StateMaryland
Coordinates39.37988, -76.55177
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating32 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans0
Design loadH 20
Structure length23 ft (7.1 m)
Longest span10 ft (3 m)
Deck width40 ft (12.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic630 (2023)
Projected traffic790 by 2045
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Birmingham Avenue over Tributary to Herring Run built?

It was built in 1954, making it 71 years old in 2025.

What condition is Birmingham Avenue 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 April 2023.

How much traffic does Birmingham Avenue over Tributary to Herring Run carry?

About 630 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Birmingham Avenue over Tributary to Herring Run?

The structure is 23 ft (7.1 m) long with a longest span of 10 ft (3 m) and a deck 40 ft wide.

Who owns Birmingham Avenue over Tributary to Herring Run?

It is owned by the County Highway Agency.