US Bridges

Maryland Avenue over I-83 Mta and AMTRAK

Fair

Baltimore city, Maryland · 0.2 MI S of North Ave · Structure no. 200000BC1404010

Built
1959
66 years old, rebuilt 1993
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
518 ft
2 main spans
Daily traffic
22,620
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Maryland Avenue over I-83 Mta and AMTRAK is a steel stringer/multi-beam or girder carrying Maryland Avenue over I-83 Mta and AMTRAK in Baltimore city, Maryland. It was built in 1959 and reconstructed in 1993, so it is 66 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 22,620 vehicles a day, roughly 5% of them trucks, projected to reach 27,601 by 2044. The structure is 518 ft (157.9 m) long and 66 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

No coordinates are recorded for this structure.

CarriesMaryland Avenue
CrossesI-83 Mta and AMTRAK
Location0.2 MI S of North Ave
RouteState Highway 139
CountyBaltimore city
StateMaryland
Functional classUrban Other Principal 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating73.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2 (+4 approach)
Design loadH 20
Structure length518 ft (157.9 m)
Longest span110 ft (33.5 m)
Deck width66 ft (20.1 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,620 (2024)
Projected traffic27,601 by 2044
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$13,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Maryland Avenue over I-83 Mta and AMTRAK built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1993.

What condition is Maryland Avenue over I-83 Mta and 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 October 2024.

How much traffic does Maryland Avenue over I-83 Mta and AMTRAK carry?

About 22,620 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Maryland Avenue over I-83 Mta and AMTRAK?

The structure is 518 ft (157.9 m) long with a longest span of 110 ft (33.5 m) and a deck 66 ft wide.

Who owns Maryland Avenue over I-83 Mta and AMTRAK?

It is owned by the City or Municipal Highway Agency.