Structure 100000210131014 · Washington County, MD

Is 70 WB over Md 66

Carries Is 70 WB over Md 66, 2.59 Miles East Of US 40.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT146 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

146 ft end to end, longest span 71 ft: about 2 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.

Built1966rebuilt 1996
Length146.0 ft44.5 m
Daily traffic58,600counted 2009
Last inspectedFebruary 2024every 24 months

Location

StateMaryland
CountyWashington
Location2.59 Miles East Of US 40
CarriesIs 70 WB
CrossesMd 66
Coordinates39.58588, -77.63947

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length146.0 ft (44.5 m)
Max Span70.9 ft (21.6 m)
Deck Width43.0 ft (13.1 m)
Deck Area583.0 sq m
Main Spans2
Year Built1966 (reconstructed 1996)

Traffic

Avg Daily Traffic58,600 (2009)
Truck Traffic20%
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 Number100000210131014

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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