US Bridges

US 1 Monroe Stree over AMTRAK

Fair

Baltimore city, Maryland · 0.5 MI S of North Ave · Structure no. 200000BC1201010

Built
1900
125 years old, rebuilt 1986
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
196 ft
3 main spans
Daily traffic
9,999
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

US 1 Monroe Stree over AMTRAK is a steel stringer/multi-beam or girder carrying US 1 Monroe Stree over AMTRAK in Baltimore city, Maryland. It was built in 1900 and reconstructed in 1986, so it is 125 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 9,999 vehicles a day, roughly 10% of them trucks, projected to reach 12,423 by 2042. The structure is 196 ft (59.7 m) long and 64 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 1 Monroe Stree
CrossesAMTRAK
Location0.5 MI S of North Ave
RouteU.S. Route 1
CountyBaltimore city
StateMaryland
Coordinates39.30219, -76.64761
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length196 ft (59.7 m)
Longest span79 ft (24.1 m)
Deck width64 ft (19.5 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,999 (2022)
Projected traffic12,423 by 2042
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 1 Monroe Stree over AMTRAK built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1986.

What condition is US 1 Monroe Stree 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 May 2024.

How much traffic does US 1 Monroe Stree over AMTRAK carry?

About 9,999 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is US 1 Monroe Stree over AMTRAK?

The structure is 196 ft (59.7 m) long with a longest span of 79 ft (24.1 m) and a deck 64 ft wide.

Who owns US 1 Monroe Stree over AMTRAK?

It is owned by the City or Municipal Highway Agency.