US Bridges

Ponca Street over Canton Railroad

Fair

Baltimore city, Maryland · Ponca St. over Canton RR · Structure no. 200000BC4404010

Built
1973
52 years old
Condition
Fair
inspected November 2024
Type
Frame
Steel Continuous
Length
120 ft
3 main spans
Daily traffic
2,287
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Ponca Street over Canton Railroad is a steel continuous frame carrying Ponca Street over Canton Railroad in Baltimore city, Maryland. It was built in 1973, so it is 52 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 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 2,287 vehicles a day, roughly 5% of them trucks, projected to reach 2,847 by 2042. The structure is 120 ft (36.6 m) long and 50 ft wide.

Location

Open in Google Maps
CarriesPonca Street
CrossesCanton Railroad
LocationPonca St. over Canton RR
RouteCity Street 1300
CountyBaltimore city
StateMaryland
Coordinates39.28224, -76.55474
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating62.9 US tons

Structure

Structure typeFrame
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span56 ft (17.1 m)
Deck width50 ft (15.2 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,287 (2020)
Projected traffic2,847 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed—
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$128,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ponca Street over Canton Railroad built?

It was built in 1973, making it 52 years old in 2025.

What condition is Ponca Street over Canton Railroad 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 November 2024.

How much traffic does Ponca Street over Canton Railroad carry?

About 2,287 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Ponca Street over Canton Railroad?

The structure is 120 ft (36.6 m) long with a longest span of 56 ft (17.1 m) and a deck 50 ft wide.

Who owns Ponca Street over Canton Railroad?

It is owned by the City or Municipal Highway Agency.