Structure 200000F-1510010 · Frederick County, MD

Roddy Road over Owens Creek

Carries Roddy Road over Owens Creek, 0.37 Mi E Of US RTE 15.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT39 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

39 ft end to end. Lengths and the car 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 through truss.

Built1856rebuilt 1995
Length39.0 ft11.9 m
Daily traffic1,170counted 2023
Last inspectedOctober 2024every 12 months

Location

StateMaryland
CountyFrederick
Location0.37 Mi E Of US RTE 15
CarriesRoddy Road
CrossesOwens Creek
Coordinates39.64086, -77.39378

Physical Characteristics

MaterialWood or Timber
DesignTruss - Thru
Total Length39.0 ft (11.9 m)
Max Span38.1 ft (11.6 m)
Deck Width14.1 ft (4.3 m)
Deck Area51.2 sq m
Main Spans1
Year Built1856 (reconstructed 1995)

Traffic

Avg Daily Traffic1,170 (2023)
Truck Traffic2%
Lanes On Bridge1

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is on the National Register of Historic Places
Scour Critical7 — Countermeasures installed
Structure Number200000F-1510010

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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