US Bridges

Mardic Drive over Bynum Run

Good

Harford County, Maryland · 0.05 MI N of Spenceola Pk · Structure no. 200000H-0206020

Built
1998
27 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
38 ft
Daily traffic
114
2023 count
Owner
County
County Highway Agency

About this bridge

Mardic Drive over Bynum Run is a concrete culvert carrying Mardic Drive over Bynum Run in Harford County, Maryland. It was built in 1998, so it is 27 years old, younger than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 114 vehicles a day, roughly 5% of them trucks, projected to reach 139 by 2043. The structure is 38 ft (11.6 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesMardic Drive
CrossesBynum Run
Location0.05 MI N of Spenceola Pk
RouteCounty Highway 2300
CountyHarford County
StateMaryland
Coordinates39.56681, -76.37232
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating81.5 US tons
Inventory rating48.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans0
Design loadHS 25 or greater
Structure length38 ft (11.6 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic114 (2023)
Projected traffic139 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

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

Frequently asked questions

When was Mardic Drive over Bynum Run built?

It was built in 1998, making it 27 years old in 2025.

What condition is Mardic Drive over Bynum Run in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does Mardic Drive over Bynum Run carry?

About 114 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Mardic Drive over Bynum Run?

The structure is 38 ft (11.6 m) long with a longest span of 11 ft (3.4 m).

Who owns Mardic Drive over Bynum Run?

It is owned by the County Highway Agency.