US Bridges

Macphail Road over Bynum Run

Fair

Harford County, Maryland · 1.6 Miles E of Md 924 · Structure no. 200000H-0049010

Built
1974
51 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
55 ft
1 main span
Daily traffic
3,095
2019 count
Owner
County
County Highway Agency

About this bridge

Macphail Road over Bynum Run is a prestressed concrete box beam or girders - multiple carrying Macphail Road over Bynum Run in Harford County, Maryland. It was built in 1974, so it is 51 years old, younger 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 3,095 vehicles a day, roughly 5% of them trucks, projected to reach 3,780 by 2039. The structure is 55 ft (16.8 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesMacphail Road
CrossesBynum Run
Location1.6 Miles E of Md 924
RouteCounty Highway 241
CountyHarford County
StateMaryland
Coordinates39.52893, -76.31731
Functional classRural Minor 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
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating83.4 US tons
Inventory rating50 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span52 ft (15.9 m)
Deck width33 ft (10.2 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,095 (2019)
Projected traffic3,780 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedDeck replacement with only incidental widening
Estimated improvement cost$273,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Macphail Road over Bynum Run built?

It was built in 1974, making it 51 years old in 2025.

What condition is Macphail Road 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 July 2023.

How much traffic does Macphail Road over Bynum Run carry?

About 3,095 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Macphail Road over Bynum Run?

The structure is 55 ft (16.8 m) long with a longest span of 52 ft (15.9 m) and a deck 33 ft wide.

Who owns Macphail Road over Bynum Run?

It is owned by the County Highway Agency.