US Bridges

Padonia Road over Merryman Branch

Fair

Baltimore County, Maryland · 1.90 MI E of Md RTE 45 · Structure no. 200000B-0396030

Built
1975
50 years old
Condition
Fair
inspected July 2023
Type
Culvert
Steel
Length
22 ft
2 main spans
Daily traffic
13,820
2019 count
Owner
County
County Highway Agency

About this bridge

Padonia Road over Merryman Branch is a steel culvert carrying Padonia Road over Merryman Branch in Baltimore County, Maryland. It was built in 1975, so it is 50 years old, younger 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 13,820 vehicles a day, roughly 5% of them trucks, projected to reach 17,502 by 2040. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesPadonia Road
CrossesMerryman Branch
Location1.90 MI E of Md RTE 45
RouteCounty Highway 773
CountyBaltimore County
StateMaryland
Coordinates39.49952, -76.60618
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.
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 rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,820 (2019)
Projected traffic17,502 by 2040
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 Padonia Road over Merryman Branch built?

It was built in 1975, making it 50 years old in 2025.

What condition is Padonia Road over Merryman Branch 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 Padonia Road over Merryman Branch carry?

About 13,820 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Padonia Road over Merryman Branch?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns Padonia Road over Merryman Branch?

It is owned by the County Highway Agency.