US Bridges

North Chatham Lane over Unnamed Stream

Fair

Howard County, Maryland · At Paulskirk Drive · Structure no. 200000HO0153030

Built
1992
33 years old
Condition
Fair
inspected May 2023
Type
Culvert
Steel
Length
50 ft
2 main spans
Daily traffic
2,840
2000 count
Owner
County
County Highway Agency

About this bridge

North Chatham Lane over Unnamed Stream is a steel culvert carrying North Chatham Lane over Unnamed Stream in Howard County, Maryland. It was built in 1992, so it is 33 years old, younger 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 5 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 2,840 vehicles a day, roughly 4% of them trucks, projected to reach 10,500 by 2015. The structure is 50 ft (15.1 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNorth Chatham Lane
CrossesUnnamed Stream
LocationAt Paulskirk Drive
RouteCounty Highway 0
CountyHoward County
StateMaryland
Coordinates39.28203, -76.83205
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 spans2
Design loadHS 20
Structure length50 ft (15.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,840 (2000)
Projected traffic10,500 by 2015
Trucks4%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 North Chatham Lane over Unnamed Stream built?

It was built in 1992, making it 33 years old in 2025.

What condition is North Chatham Lane over Unnamed Stream 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 May 2023.

How much traffic does North Chatham Lane over Unnamed Stream carry?

About 2,840 vehicles per day (2000 count), of which roughly 4% are trucks.

How long is North Chatham Lane over Unnamed Stream?

The structure is 50 ft (15.1 m) long with a longest span of 10 ft (3 m).

Who owns North Chatham Lane over Unnamed Stream?

It is owned by the County Highway Agency.