Structure 100000220005012 · Wicomico County, MD

US 13 Bus SB over Tonytank Pond

Carries US 13 Bus SB over Tonytank Pond, 0.34 Mile North Of Md 513.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT243 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

243 ft end to end, longest span 20 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 slab bridge.

Built195472 years old
Length243.1 ft74.1 m
Daily traffic11,029counted 2012
Last inspectedMarch 2024every 12 months

Location

StateMaryland
CountyWicomico
Location0.34 Mile North Of Md 513
CarriesUS 13 Bus SB
CrossesTonytank Pond
Coordinates38.33374, -75.60782

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length243.1 ft (74.1 m)
Max Span20.0 ft (6.1 m)
Deck Width38.7 ft (11.8 m)
Deck Area874.4 sq m
Main Spans12
Year Built1954

Traffic

Avg Daily Traffic11,029 (2012)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number100000220005012

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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