Structure 100000010007010 · Allegany County, MD

Md 36 over Jennings Run

Carries Md 36 over Jennings Run, 1.83 Mi S Of Md 47.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT58 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 6/9

58 ft end to end, longest span 24 ft. 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 or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built192997 years old
Length58.1 ft17.7 m
Daily traffic2,290counted 2009
Last inspectedJanuary 2024every 12 months

Location

StateMaryland
CountyAllegany
Location1.83 Mi S Of Md 47
CarriesMd 36
CrossesJennings Run
Coordinates39.69709, -78.87441

Physical Characteristics

MaterialConcrete
DesignStringer/Multi-beam
Total Length58.1 ft (17.7 m)
Max Span24.0 ft (7.3 m)
Deck Width31.2 ft (9.5 m)
Deck Area168.2 sq m
Main Spans2
Year Built1929

Traffic

Avg Daily Traffic2,290 (2009)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number100000010007010

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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