US Bridges

Md 17 over Little Catoctin Creek

Fair

Frederick County, Maryland · 0.03 MI N of Harmony RD · Structure no. 100000100177010

Built
1920
105 years old
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete
Length
66 ft
2 main spans
Daily traffic
3,046
2009 count
Owner
State
State Highway Agency

About this bridge

Md 17 over Little Catoctin Creek is a concrete tee beam carrying Md 17 over Little Catoctin Creek in Frederick County, Maryland. It was built in 1920, so it is 105 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 3,046 vehicles a day, roughly 8% of them trucks, projected to reach 3,762 by 2026. The structure is 66 ft (20.1 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesMd 17
CrossesLittle Catoctin Creek
Location0.03 MI N of Harmony RD
RouteState Highway 17
CountyFrederick County
StateMaryland
Coordinates39.47974, -77.5409
Functional classRural Major 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
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.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.5 US tons
Inventory rating45.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length66 ft (20.1 m)
Longest span32 ft (9.8 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,046 (2009)
Projected traffic3,762 by 2026
Trucks8%
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

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$117,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 17 over Little Catoctin Creek built?

It was built in 1920, making it 105 years old in 2025.

What condition is Md 17 over Little Catoctin 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 May 2024.

How much traffic does Md 17 over Little Catoctin Creek carry?

About 3,046 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 17 over Little Catoctin Creek?

The structure is 66 ft (20.1 m) long with a longest span of 32 ft (9.8 m) and a deck 27 ft wide.

Who owns Md 17 over Little Catoctin Creek?

It is owned by the State Highway Agency.