US Bridges

Coxey Brown Road over Little Catoctin Creek

Good

Frederick County, Maryland · At Harmony RD Int · Structure no. 200000F-1626010

Built
1983
42 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
35 ft
1 main span
Daily traffic
517
2024 count
Owner
County
County Highway Agency

About this bridge

Coxey Brown Road over Little Catoctin Creek is a steel stringer/multi-beam or girder carrying Coxey Brown Road over Little Catoctin Creek in Frederick County, Maryland. It was built in 1983, so it is 42 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 517 vehicles a day, roughly 5% of them trucks, projected to reach 551 by 2044. The structure is 35 ft (10.7 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCoxey Brown Road
CrossesLittle Catoctin Creek
LocationAt Harmony RD Int
RouteCounty Highway 135
Coordinates39.4981, -77.52755
Functional classRural Minor 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 protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.9 US tons
Inventory rating55 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length35 ft (10.7 m)
Longest span30 ft (9.1 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic517 (2024)
Projected traffic551 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Coxey Brown Road over Little Catoctin Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is Coxey Brown Road over Little 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 May 2024.

How much traffic does Coxey Brown Road over Little Catoctin Creek carry?

About 517 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Coxey Brown Road over Little Catoctin Creek?

The structure is 35 ft (10.7 m) long with a longest span of 30 ft (9.1 m) and a deck 33 ft wide.

Who owns Coxey Brown Road over Little Catoctin Creek?

It is owned by the County Highway Agency.