US Bridges

US 15/340 over Ballenger Creek

Fair

Frederick County, Maryland · 1.95 Miles South of Is 70 · Structure no. 100000100151020

Built
1968
57 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
29 ft
Daily traffic
53,991
2013 count
Owner
State
State Highway Agency

About this bridge

US 15/340 over Ballenger Creek is a concrete culvert carrying US 15/340 over Ballenger Creek in Frederick County, Maryland. It was built in 1968, so it is 57 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 53,991 vehicles a day, roughly 8% of them trucks, projected to reach 79,130 by 2029. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 15/340
CrossesBallenger Creek
Location1.95 Miles South of Is 70
RouteU.S. Route 15
Coordinates39.3809, -77.46753
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans0
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic53,991 (2013)
Projected traffic79,130 by 2029
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 15/340 over Ballenger Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is US 15/340 over Ballenger Creek 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 US 15/340 over Ballenger Creek carry?

About 53,991 vehicles per day (2013 count), of which roughly 8% are trucks.

How long is US 15/340 over Ballenger Creek?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m).

Who owns US 15/340 over Ballenger Creek?

It is owned by the State Highway Agency.