US Bridges

Windsor Mill Road over Gwynns Falls

Fair

Baltimore city, Maryland · 0.3 MI West Clifton Ave · Structure no. 200000BC2211010

Built
1887
138 years old
Condition
Fair
inspected September 2024
Type
Arch - Deck
Concrete
Length
80 ft
1 main span
Daily traffic
20,504
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

Windsor Mill Road over Gwynns Falls is a concrete arch - deck carrying Windsor Mill Road over Gwynns Falls in Baltimore city, Maryland. It was built in 1887, so it is 138 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 20,504 vehicles a day, roughly 5% of them trucks, projected to reach 25,019 by 2035. The structure is 80 ft (24.4 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesWindsor Mill Road
CrossesGwynns Falls
Location0.3 MI West Clifton Ave
RouteCity Street 2090
CountyBaltimore city
StateMaryland
Coordinates39.3123, -76.68927
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
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating68 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length80 ft (24.4 m)
Longest span80 ft (24.4 m)
Deck width54 ft (16.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,504 (2015)
Projected traffic25,019 by 2035
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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$54,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Windsor Mill Road over Gwynns Falls built?

It was built in 1887, making it 138 years old in 2025.

What condition is Windsor Mill Road over Gwynns Falls 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 Windsor Mill Road over Gwynns Falls carry?

About 20,504 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is Windsor Mill Road over Gwynns Falls?

The structure is 80 ft (24.4 m) long with a longest span of 80 ft (24.4 m) and a deck 54 ft wide.

Who owns Windsor Mill Road over Gwynns Falls?

It is owned by the City or Municipal Highway Agency.