Structure 200000G-0103010 · Garrett County, MD

Maple Grove Road over Casselman River

Carries Maple Grove Road over Casselman River, 0.08 Mi E Of Md RTE 495.

Overall conditionPoor

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

How ratings work
Superstructuresets the rating4/9 · Poor
Substructure5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT56 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 4/9 · sets the ratingSubstructure 5/9

56 ft end to end. 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 deck arch.

Built1926100 years old
Length56.4 ft17.2 m
Daily traffic413counted 2022
Last inspectedOctober 2024every 12 months

Location

StateMaryland
CountyGarrett
Location0.08 Mi E Of Md RTE 495
CarriesMaple Grove Road
CrossesCasselman River
Coordinates39.67557, -79.17105

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length56.4 ft (17.2 m)
Max Span56.1 ft (17.1 m)
Deck Width13.5 ft (4.1 m)
Deck Area70.5 sq m
Main Spans1
Year Built1926

Traffic

Avg Daily Traffic413 (2022)
Truck Traffic5%
Lanes On Bridge1

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number200000G-0103010

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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