US Bridges

Big Branch Drive over Trib to Triadelphia Res

Good

Howard County, Maryland · 1/4 MI S of Howard RD · Structure no. 200000HO0260030

Built
2000
25 years old
Condition
Good
inspected February 2024
Type
Culvert
Steel
Length
21 ft
Daily traffic
60
2024 count
Owner
County
County Highway Agency

About this bridge

Big Branch Drive over Trib to Triadelphia Res is a steel culvert carrying Big Branch Drive over Trib to Triadelphia Res in Howard County, Maryland. It was built in 2000, so it is 25 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 60 vehicles a day, projected to reach 80 by 2044. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesBig Branch Drive
CrossesTrib to Triadelphia Res
Location1/4 MI S of Howard RD
RouteCounty Highway 0
CountyHoward County
StateMaryland
Coordinates39.40174, -77.02066
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans0
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck10 ft (3 m)

Traffic and service

Average daily traffic60 (2024)
Projected traffic80 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 Big Branch Drive over Trib to Triadelphia Res built?

It was built in 2000, making it 25 years old in 2025.

What condition is Big Branch Drive over Trib to Triadelphia Res 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 Big Branch Drive over Trib to Triadelphia Res carry?

About 60 vehicles per day (2024 count).

How long is Big Branch Drive over Trib to Triadelphia Res?

The structure is 21 ft (6.4 m) long with a longest span of 8 ft (2.4 m).

Who owns Big Branch Drive over Trib to Triadelphia Res?

It is owned by the County Highway Agency.