US Bridges

Md 464 over Catoctin Creek

Good

Frederick County, Maryland · 3.17 Miles East of Md 17 · Structure no. 100000100091010

Built
2010
15 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
303 ft
3 main spans
Daily traffic
4,040
2009 count
Owner
State
State Highway Agency

About this bridge

Md 464 over Catoctin Creek is a prestressed concrete stringer/multi-beam or girder carrying Md 464 over Catoctin Creek in Frederick County, Maryland. It was built in 2010, so it is 15 years old, younger than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,040 vehicles a day, roughly 9% of them trucks, projected to reach 4,900 by 2030. The structure is 303 ft (92.4 m) long and 36 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesMd 464
CrossesCatoctin Creek
Location3.17 Miles East of Md 17
RouteState Highway 464
CountyFrederick County
StateMaryland
Coordinates39.33202, -77.57912
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating36.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length303 ft (92.4 m)
Longest span120 ft (36.6 m)
Deck width36 ft (11 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,040 (2009)
Projected traffic4,900 by 2030
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 464 over Catoctin Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is Md 464 over Catoctin Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does Md 464 over Catoctin Creek carry?

About 4,040 vehicles per day (2009 count), of which roughly 9% are trucks.

How long is Md 464 over Catoctin Creek?

The structure is 303 ft (92.4 m) long with a longest span of 120 ft (36.6 m) and a deck 36 ft wide.

Who owns Md 464 over Catoctin Creek?

It is owned by the State Highway Agency.