US Bridges

Castlebridge Road over Trib to Middle Patuxent

Good

Howard County, Maryland · 400 N of Homewood RD · Structure no. 200000HO0264010

Built
1995
30 years old
Condition
Good
inspected February 2024
Type
Arch - Deck
Concrete
Length
65 ft
1 main span
Daily traffic
300
2024 count
Owner
County
County Highway Agency

About this bridge

Castlebridge Road over Trib to Middle Patuxent is a concrete arch - deck carrying Castlebridge Road over Trib to Middle Patuxent in Howard County, Maryland. It was built in 1995, so it is 30 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 300 vehicles a day, projected to reach 370 by 2044. The structure is 65 ft (19.8 m) long and 34 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

No coordinates are recorded for this structure.

CarriesCastlebridge Road
CrossesTrib to Middle Patuxent
Location400 N of Homewood RD
RouteCounty Highway 0
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.5 US tons
Inventory rating47.5 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length65 ft (19.8 m)
Longest span65 ft (19.8 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2024)
Projected traffic370 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 Castlebridge Road over Trib to Middle Patuxent built?

It was built in 1995, making it 30 years old in 2025.

What condition is Castlebridge Road over Trib to Middle Patuxent 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 February 2024.

How much traffic does Castlebridge Road over Trib to Middle Patuxent carry?

About 300 vehicles per day (2024 count).

How long is Castlebridge Road over Trib to Middle Patuxent?

The structure is 65 ft (19.8 m) long with a longest span of 65 ft (19.8 m) and a deck 34 ft wide.

Who owns Castlebridge Road over Trib to Middle Patuxent?

It is owned by the County Highway Agency.