Structure 100000130090020 · Howard County, MD

Md 175 over Pedestrian Walkway

Carries Md 175 over Pedestrian Walkway, 0.69 Mile South Of US 29.

Overall conditionFair

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

How ratings work
Culvertsets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
20 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 20 ft across. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights, so those are drawn as typical for a culvert.

Built1975rebuilt 1988
Length20.0 ft6.1 m
Daily traffic44,142counted 2013
Last inspectedSeptember 2023every 24 months

Location

StateMaryland
CountyHoward
Location0.69 Mile South Of US 29
CarriesMd 175
CrossesPedestrian Walkway
Coordinates39.21856, -76.83716

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length20.0 ft (6.1 m)
Max Span20.0 ft (6.1 m)
Deck Width105.3 ft (32.1 m)
Deck Area195.8 sq m
Year Built1975 (reconstructed 1988)

Traffic

Avg Daily Traffic44,142 (2013)
Truck Traffic8%
Lanes On Bridge4

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number100000130090020

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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