US Bridges

Md 17 over Catoctin Creek

FairPosted for load

Frederick County, Maryland · 0.6 Mile South of Is 70 · Structure no. 100000100176010

Built
1928
97 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
97 ft
2 main spans
Daily traffic
3,891
2009 count
Owner
State
State Highway Agency

About this bridge

Md 17 over Catoctin Creek is a steel stringer/multi-beam or girder carrying Md 17 over Catoctin Creek in Frederick County, Maryland. It was built in 1928, so it is 97 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. Its operating status is: posted for load restriction.

It carries about 3,891 vehicles a day, roughly 8% of them trucks, projected to reach 5,109 by 2026. The structure is 97 ft (29.6 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesMd 17
CrossesCatoctin Creek
Location0.6 Mile South of Is 70
RouteState Highway 17
Coordinates39.48752, -77.56677
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.5 US tons
Inventory rating22.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length97 ft (29.6 m)
Longest span55 ft (16.8 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,891 (2009)
Projected traffic5,109 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$173,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 17 over Catoctin Creek built?

It was built in 1928, making it 97 years old in 2025.

What condition is Md 17 over 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 November 2024.

How much traffic does Md 17 over Catoctin Creek carry?

About 3,891 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 17 over Catoctin Creek?

The structure is 97 ft (29.6 m) long with a longest span of 55 ft (16.8 m) and a deck 27 ft wide.

Who owns Md 17 over Catoctin Creek?

It is owned by the State Highway Agency.