US Bridges

Sparks Road over Gunpowder Falls

PoorPosted for load

Baltimore County, Maryland · 0.5 MI E of York RD · Structure no. 200000B-0018010

Built
1888
137 years old, rebuilt 1990
Condition
Poor
inspected February 2024
Type
Arch - Thru
Steel
Length
178 ft
1 main span
Daily traffic
2,589
2024 count
Owner
County
County Highway Agency

About this bridge

Sparks Road over Gunpowder Falls is a steel arch - thru carrying Sparks Road over Gunpowder Falls in Baltimore County, Maryland. It was built in 1888 and reconstructed in 1990, so it is 137 years old, older than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 2,589 vehicles a day, roughly 5% of them trucks, projected to reach 3,742 by 2044. The structure is 178 ft (54.3 m) long and 16 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSparks Road
CrossesGunpowder Falls
Location0.5 MI E of York RD
RouteCounty Highway 239
Coordinates39.53982, -76.63943
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating42.4 US tons
Inventory rating25.5 US tons

Structure

Structure typeArch - Thru
MaterialSteel
DeckOpen grating
Main spans1
Design loadH 20
Structure length178 ft (54.3 m)
Longest span175 ft (53.3 m)
Deck width16 ft (5 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deck14 ft (4.3 m)

Traffic and service

Average daily traffic2,589 (2024)
Projected traffic3,742 by 2044
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sparks Road over Gunpowder Falls built?

It was built in 1888, making it 137 years old in 2025. It was reconstructed in 1990.

What condition is Sparks Road over Gunpowder Falls in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2024.

How much traffic does Sparks Road over Gunpowder Falls carry?

About 2,589 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Sparks Road over Gunpowder Falls?

The structure is 178 ft (54.3 m) long with a longest span of 175 ft (53.3 m) and a deck 16 ft wide.

Who owns Sparks Road over Gunpowder Falls?

It is owned by the County Highway Agency.