US Bridges

Md 383 over Catoctin Creek

Fair

Frederick County, Maryland · 1.52 Miles N of Md 180 · Structure no. 100000100087010

Built
1953
72 years old, rebuilt 1983
Condition
Fair
inspected June 2024
Type
Girder and Floorbeam System
Steel
Length
206 ft
3 main spans
Daily traffic
1,550
2009 count
Owner
State
State Highway Agency

About this bridge

Md 383 over Catoctin Creek is a steel girder and floorbeam system carrying Md 383 over Catoctin Creek in Frederick County, Maryland. It was built in 1953 and reconstructed in 1983, so it is 72 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 1,550 vehicles a day, roughly 8% of them trucks, projected to reach 1,799 by 2026. The structure is 206 ft (62.8 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesMd 383
CrossesCatoctin Creek
Location1.52 Miles N of Md 180
RouteState Highway 383
Coordinates39.36853, -77.56954
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 protection6 SatisfactoryStructural elements show some minor deterioration.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating43.5 US tons
Inventory rating26 US tons

Structure

MaterialSteel
DeckOther
Main spans3
Design loadH 20
Structure length206 ft (62.8 m)
Longest span69 ft (21 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,550 (2009)
Projected traffic1,799 by 2026
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

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 Md 383 over Catoctin Creek built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 1983.

What condition is Md 383 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 June 2024.

How much traffic does Md 383 over Catoctin Creek carry?

About 1,550 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 383 over Catoctin Creek?

The structure is 206 ft (62.8 m) long with a longest span of 69 ft (21 m) and a deck 29 ft wide.

Who owns Md 383 over Catoctin Creek?

It is owned by the State Highway Agency.