Structure 200000M-G-03030 · Montgomery County, MD

Rabbitt Road over Long Draught Branch

Carries Rabbitt Road over Long Draught Branch, 1 Mile South Of Md 117.

Overall conditionPoor

Set by its lowest-rated component: Culvert at 4 of 9.

How ratings work
Culvertsets the rating4/9 · Poor
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT30 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 4/9

A culvert 30 ft across with 3 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.

Built198244 years old
Length29.9 ft9.1 m
Daily traffic1,329counted 2022
Last inspectedJune 2024every 12 months

Location

StateMaryland
CountyMontgomery
Location1 Mile South Of Md 117
CarriesRabbitt Road
CrossesLong Draught Branch
Coordinates39.14047, -77.23399

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length29.9 ft (9.1 m)
Max Span7.9 ft (2.4 m)
Deck Area132.9 sq m
Main Spans3
Year Built1982

Traffic

Avg Daily Traffic1,329 (2022)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 12 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number200000M-G-03030

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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