Structure 100000130051010 · Howard County, MD

Montgomery Road over Is 95

Carries Montgomery Road over Is 95, 1.01 Mi S Of Is 895.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT305 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

305 ft end to end, longest span 110 ft: about 4 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.

Built1969rebuilt 1972
Length305.1 ft93 m
Daily traffic6,764counted 1994
Last inspectedOctober 2024every 24 months

Location

StateMaryland
CountyHoward
Location1.01 Mi S Of Is 895
CarriesMontgomery Road
CrossesIs 95
Coordinates39.21191, -76.73916

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length305.1 ft (93 m)
Max Span109.9 ft (33.5 m)
Deck Width38.7 ft (11.8 m)
Deck Area1097.4 sq m
Main Spans2
Year Built1969 (reconstructed 1972)

Traffic

Avg Daily Traffic6,764 (1994)
Truck Traffic5%
Lanes On Bridge2
Lanes Under Bridge8

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number100000130051010

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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