US Bridges

US 340 Ebr over US 15 Sbr

Fair

Frederick County, Maryland · 4.33 Miles East of Md 180 · Structure no. 100000100121010

Built
1966
59 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
115 ft
2 main spans
Daily traffic
32,282
2009 count
Owner
State
State Highway Agency

About this bridge

US 340 Ebr over US 15 Sbr is a steel stringer/multi-beam or girder carrying US 340 Ebr over US 15 Sbr in Frederick County, Maryland. It was built in 1966, so it is 59 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 5 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 32,282 vehicles a day, roughly 8% of them trucks, projected to reach 19,095 by 2026. The structure is 115 ft (35.1 m) long and 41 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesUS 340 Ebr
CrossesUS 15 Sbr
Location4.33 Miles East of Md 180
RouteU.S. Route 340
CountyFrederick County
StateMaryland
Coordinates39.36416, -77.50512
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95 US tons
Inventory rating57 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length115 ft (35.1 m)
Longest span72 ft (21.9 m)
Deck width41 ft (12.4 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,282 (2009)
Projected traffic19,095 by 2026
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 340 Ebr over US 15 Sbr built?

It was built in 1966, making it 59 years old in 2025.

What condition is US 340 Ebr over US 15 Sbr 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 January 2023.

How much traffic does US 340 Ebr over US 15 Sbr carry?

About 32,282 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is US 340 Ebr over US 15 Sbr?

The structure is 115 ft (35.1 m) long with a longest span of 72 ft (21.9 m) and a deck 41 ft wide.

Who owns US 340 Ebr over US 15 Sbr?

It is owned by the State Highway Agency.