US Bridges

Md 7A over AMTRAK

Fair

Harford County, Maryland · 0.12 Mile North of US 40 · Structure no. 100000120073010

Built
1983
42 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
547 ft
4 main spans
Daily traffic
11,932
2024 count
Owner
State
State Highway Agency

About this bridge

Md 7A over AMTRAK is a steel stringer/multi-beam or girder carrying Md 7A over AMTRAK in Harford County, Maryland. It was built in 1983, so it is 42 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 11,932 vehicles a day, roughly 8% of them trucks, projected to reach 17,733 by 2044. The structure is 547 ft (166.7 m) long and 56 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMd 7A
CrossesAMTRAK
Location0.12 Mile North of US 40
RouteState Highway 7A
CountyHarford County
StateMaryland
Coordinates39.53582, -76.11453
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating67 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length547 ft (166.7 m)
Longest span172 ft (52.4 m)
Deck width56 ft (17.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,932 (2024)
Projected traffic17,733 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Md 7A over AMTRAK built?

It was built in 1983, making it 42 years old in 2025.

What condition is Md 7A over AMTRAK 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 December 2023.

How much traffic does Md 7A over AMTRAK carry?

About 11,932 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Md 7A over AMTRAK?

The structure is 547 ft (166.7 m) long with a longest span of 172 ft (52.4 m) and a deck 56 ft wide.

Who owns Md 7A over AMTRAK?

It is owned by the State Highway Agency.