Structure 100000100143010 · Frederick County, MD

Is 70 Ramp A & E over US 15/us 340

Carries Is 70 Ramp A & E over US 15/us 340, 0.37 Mile East Of Md 180.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT183 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 6/9

183 ft end to end, longest span 93 ft: about 3 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.

Built1968rebuilt 1998
Length183.1 ft55.8 m
Daily traffic13,542counted 2016
Last inspectedMay 2024every 24 months

Location

StateMaryland
CountyFrederick
Location0.37 Mile East Of Md 180
CarriesIs 70 Ramp A & E
CrossesUS 15/us 340
Coordinates39.66837, -77.74412

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length183.1 ft (55.8 m)
Max Span92.8 ft (28.3 m)
Deck Width44.9 ft (13.7 m)
Deck Area764.5 sq m
Main Spans2
Year Built1968 (reconstructed 1998)

Traffic

Avg Daily Traffic13,542 (2016)
Truck Traffic8%
Lanes On Bridge2
Lanes Under Bridge6

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number100000100143010

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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