US Bridges

Fallsway Viaduct over Underground Conduit

Fair

Baltimore city, Maryland · 0.2 MI N Madison ST · Structure no. 200000BC1301010

Built
1930
95 years old, rebuilt 1990
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
335 ft
3 main spans
Daily traffic
4,262
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Fallsway Viaduct over Underground Conduit is a steel continuous stringer/multi-beam or girder carrying Fallsway Viaduct over Underground Conduit in Baltimore city, Maryland. It was built in 1930 and reconstructed in 1990, so it is 95 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 5 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 4,262 vehicles a day, roughly 5% of them trucks, projected to reach 5,765 by 2044. The structure is 335 ft (102.2 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesFallsway Viaduct
CrossesUnderground Conduit
Location0.2 MI N Madison ST
RouteCity Street 1382
CountyBaltimore city
StateMaryland
Coordinates39.30112, -76.6109
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating61.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length335 ft (102.2 m)
Longest span111 ft (33.8 m)
Deck width43 ft (13 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,262 (2024)
Projected traffic5,765 by 2044
Trucks5%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesOther
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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$5,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Fallsway Viaduct over Underground Conduit built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1990.

What condition is Fallsway Viaduct over Underground Conduit 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 September 2024.

How much traffic does Fallsway Viaduct over Underground Conduit carry?

About 4,262 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Fallsway Viaduct over Underground Conduit?

The structure is 335 ft (102.2 m) long with a longest span of 111 ft (33.8 m) and a deck 43 ft wide.

Who owns Fallsway Viaduct over Underground Conduit?

It is owned by the City or Municipal Highway Agency.