US Bridges

Singer Road over Mountain Branch

Good

Harford County, Maryland · 1.7 Miles E of Md 152 · Structure no. 200000H-0007010

Built
2003
22 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
56 ft
1 main span
Daily traffic
4,530
2019 count
Owner
County
County Highway Agency

About this bridge

Singer Road over Mountain Branch is a prestressed concrete box beam or girders - multiple carrying Singer Road over Mountain Branch in Harford County, Maryland. It was built in 2003, so it is 22 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 4,530 vehicles a day, roughly 5% of them trucks, projected to reach 5,530 by 2039. The structure is 56 ft (17.1 m) long and 34 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesSinger Road
CrossesMountain Branch
Location1.7 Miles E of Md 152
RouteCounty Highway 246
Coordinates39.47347, -76.34036
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating64.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length56 ft (17.1 m)
Longest span50 ft (15.2 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,530 (2019)
Projected traffic5,530 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Singer Road over Mountain Branch built?

It was built in 2003, making it 22 years old in 2025.

What condition is Singer Road over Mountain Branch 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 Singer Road over Mountain Branch carry?

About 4,530 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Singer Road over Mountain Branch?

The structure is 56 ft (17.1 m) long with a longest span of 50 ft (15.2 m) and a deck 34 ft wide.

Who owns Singer Road over Mountain Branch?

It is owned by the County Highway Agency.