US Bridges

Md 24 over North Stirrup Run

Fair

Harford County, Maryland · 3.09 Miles North of Md 23 · Structure no. 100000120018010

Built
1917
108 years old, rebuilt 1994
Condition
Fair
inspected September 2023
Type
Tee Beam
Concrete
Length
40 ft
1 main span
Daily traffic
3,572
2009 count
Owner
State
State Highway Agency

About this bridge

Md 24 over North Stirrup Run is a concrete tee beam carrying Md 24 over North Stirrup Run in Harford County, Maryland. It was built in 1917 and reconstructed in 1994, so it is 108 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 3,572 vehicles a day, roughly 8% of them trucks, projected to reach 4,280 by 2026. The structure is 40 ft (12.2 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesMd 24
CrossesNorth Stirrup Run
Location3.09 Miles North of Md 23
RouteState Highway 24
CountyHarford County
StateMaryland
Coordinates39.61661, -76.40056
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52 US tons
Inventory rating31.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span36 ft (11 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,572 (2009)
Projected traffic4,280 by 2026
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$154,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 24 over North Stirrup Run built?

It was built in 1917, making it 108 years old in 2025. It was reconstructed in 1994.

What condition is Md 24 over North Stirrup Run 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 2023.

How much traffic does Md 24 over North Stirrup Run carry?

About 3,572 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 24 over North Stirrup Run?

The structure is 40 ft (12.2 m) long with a longest span of 36 ft (11 m) and a deck 29 ft wide.

Who owns Md 24 over North Stirrup Run?

It is owned by the State Highway Agency.