Structure 200000CH0020010 · Charles County, MD

Constitution Drive over Piney Branch

Carries Constitution Drive over Piney Branch, 1 Mile West Of US 301.

Overall conditionFair

Set by its lowest-rated component: Culvert at 6 of 9.

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT45 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 45 ft across. 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.

Built199531 years old
Length44.9 ft13.7 m
Daily traffic208counted 2017
Last inspectedAugust 2023every 24 months

Location

StateMaryland
CountyCharles
Location1 Mile West Of US 301
CarriesConstitution Drive
CrossesPiney Branch
Coordinates38.63211, -76.93525

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length44.9 ft (13.7 m)
Max Span40.0 ft (12.2 m)
Deck Width40.0 ft (12.2 m)
Deck Area167.1 sq m
Main Spans1
Year Built1995

Traffic

Avg Daily Traffic208 (2017)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number200000CH0020010

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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