US Bridges

Longs Mill Road over Owens Creek

Fair

Frederick County, Maryland · 1.8 MI E of Md 550 · Structure no. 200000F-0404010

Built
1979
46 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
125 ft
3 main spans
Daily traffic
670
2022 count
Owner
County
County Highway Agency

About this bridge

Longs Mill Road over Owens Creek is a steel continuous stringer/multi-beam or girder carrying Longs Mill Road over Owens Creek in Frederick County, Maryland. It was built in 1979, so it is 46 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 670 vehicles a day, roughly 5% of them trucks, projected to reach 1,100 by 2044. The structure is 125 ft (38.1 m) long and 43 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLongs Mill Road
CrossesOwens Creek
Location1.8 MI E of Md 550
RouteCounty Highway 543
Coordinates39.58555, -77.33516
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating72.5 US tons
Inventory rating43.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length125 ft (38.1 m)
Longest span53 ft (16.2 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic670 (2022)
Projected traffic1,100 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Longs Mill Road over Owens Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Longs Mill Road over Owens 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 June 2024.

How much traffic does Longs Mill Road over Owens Creek carry?

About 670 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Longs Mill Road over Owens Creek?

The structure is 125 ft (38.1 m) long with a longest span of 53 ft (16.2 m) and a deck 43 ft wide.

Who owns Longs Mill Road over Owens Creek?

It is owned by the County Highway Agency.