US Bridges

Avondale Road over White Marsh Run

Fair

Baltimore County, Maryland · 0.02 M N of I 695 · Structure no. 200000B-0353020

Built
1971
54 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
39 ft
Daily traffic
4,232
2023 count
Owner
County
County Highway Agency

About this bridge

Avondale Road over White Marsh Run is a concrete culvert carrying Avondale Road over White Marsh Run in Baltimore County, Maryland. It was built in 1971, so it is 54 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 4,232 vehicles a day, roughly 5% of them trucks, projected to reach 4,384 by 2043. The structure is 39 ft (11.9 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesAvondale Road
CrossesWhite Marsh Run
Location0.02 M N of I 695
RouteCounty Highway 3739
CountyBaltimore County
StateMaryland
Coordinates39.38524, -76.52352
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
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating28.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans0
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span18 ft (5.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,232 (2023)
Projected traffic4,384 by 2043
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Avondale Road over White Marsh Run built?

It was built in 1971, making it 54 years old in 2025.

What condition is Avondale Road over White Marsh 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 Avondale Road over White Marsh Run carry?

About 4,232 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Avondale Road over White Marsh Run?

The structure is 39 ft (11.9 m) long with a longest span of 18 ft (5.5 m).

Who owns Avondale Road over White Marsh Run?

It is owned by the County Highway Agency.