Structure 200000M-0231020 · Montgomery County, MD

Kinster Drive over Little Seneca Creek Trib

Carries Kinster Drive over Little Seneca Creek Trib, 0.1 Mi N Of Crystal Rock.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT33 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 33 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.

Built20188 years old
Length33.1 ft10.1 m
Daily traffic157counted 2024
Last inspectedMarch 2024every 24 months

Location

StateMaryland
CountyMontgomery
Location0.1 Mi N Of Crystal Rock
CarriesKinster Drive
CrossesLittle Seneca Creek Trib
Coordinates39.19726, -77.27285

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length33.1 ft (10.1 m)
Max Span11.2 ft (3.4 m)
Deck Area166.7 sq m
Year Built2018

Traffic

Avg Daily Traffic157 (2024)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number200000M-0231020

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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