US Bridges

Md 7 over Bynum Run

Fair

Harford County, Maryland · 0.17 Mile West of Md 136 · Structure no. 100000120010010

Built
1923
102 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete
Length
64 ft
2 main spans
Daily traffic
11,350
2009 count
Owner
State
State Highway Agency

About this bridge

Md 7 over Bynum Run is a concrete tee beam carrying Md 7 over Bynum Run in Harford County, Maryland. It was built in 1923, so it is 102 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 6 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 11,350 vehicles a day, roughly 8% of them trucks, projected to reach 14,009 by 2026. The structure is 64 ft (19.5 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

No coordinates are recorded for this structure.

CarriesMd 7
CrossesBynum Run
Location0.17 Mile West of Md 136
RouteState Highway 7
CountyHarford County
StateMaryland
Functional classUrban Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.5 US tons
Inventory rating39.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length64 ft (19.5 m)
Longest span30 ft (9.1 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,350 (2009)
Projected traffic14,009 by 2026
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$112,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 7 over Bynum Run built?

It was built in 1923, making it 102 years old in 2025.

What condition is Md 7 over Bynum 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 June 2024.

How much traffic does Md 7 over Bynum Run carry?

About 11,350 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 7 over Bynum Run?

The structure is 64 ft (19.5 m) long with a longest span of 30 ft (9.1 m) and a deck 27 ft wide.

Who owns Md 7 over Bynum Run?

It is owned by the State Highway Agency.