Structure 200000HO0153030 · Howard County, MD

North Chatham Lane over Unnamed Stream

Carries North Chatham Lane over Unnamed Stream, At Paulskirk Drive.

Overall conditionFair

Set by its lowest-rated component: Culvert at 5 of 9.

How ratings work
Culvertsets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT50 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 5/9

A culvert 50 ft across with 2 openings. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights, so those are drawn as typical for a culvert.

Built199234 years old
Length49.5 ft15.1 m
Daily traffic2,840counted 2000
Last inspectedMay 2023every 24 months

Location

StateMaryland
CountyHoward
LocationAt Paulskirk Drive
CarriesNorth Chatham Lane
CrossesUnnamed Stream
Coordinates39.28203, -76.83205

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length49.5 ft (15.1 m)
Max Span9.8 ft (3 m)
Deck Area114.8 sq m
Main Spans2
Year Built1992

Traffic

Avg Daily Traffic2,840 (2000)
Truck Traffic4%
Lanes On Bridge1

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number200000HO0153030

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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