Structure 100000150194010 · Montgomery County, MD

Md 355 over Relocated Randolph Road

Carries Md 355 over Relocated Randolph Road, 2.5 Mi N. Of I-495.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT180 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

180 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.

Built200917 years old
Length180.1 ft54.9 m
Daily traffic60,000counted 2007
Last inspectedAugust 2023every 24 months

Location

StateMaryland
CountyMontgomery
Location2.5 Mi N. Of I-495
CarriesMd 355
CrossesRelocated Randolph Road
Coordinates39.05241, -77.11601

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length180.1 ft (54.9 m)
Max Span92.8 ft (28.3 m)
Deck Width115.5 ft (35.2 m)
Deck Area1932.5 sq m
Main Spans2
Year Built2009

Traffic

Avg Daily Traffic60,000 (2007)
Truck Traffic4%
Lanes On Bridge7
Lanes Under Bridge6

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number100000150194010

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.

Nearby Bridges