Structure 100000020173010 · Anne Arundel County, MD

Md 10 Sbr over Md 100 Wbr

Carries Md 10 Sbr over Md 100 Wbr, 0.17 Mi S Of Md 177.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT371 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

371 ft end to end, longest span 173 ft: about 5 semi-trucks nose to tail. Lengths and the semi-truck 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.

Built198838 years old
Length371.1 ft113.1 m
Daily traffic33,320counted 9
Last inspectedFebruary 2024every 24 months

Location

StateMaryland
CountyAnne Arundel
Location0.17 Mi S Of Md 177
CarriesMd 10 Sbr
CrossesMd 100 Wbr
Coordinates39.13305, -76.58700

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length371.1 ft (113.1 m)
Max Span172.9 ft (52.7 m)
Deck Width41.3 ft (12.6 m)
Deck Area1425.1 sq m
Main Spans3
Year Built1988

Traffic

Avg Daily Traffic33,320 (9)
Truck Traffic8%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number100000020173010

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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