Structure 100000120005010 · Harford County, MD

Md 22 over Amtrak Trib To Swan CR

Carries Md 22 over Amtrak Trib To Swan CR, 0.06 Mile East Of US 40.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT117 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 6/9

117 ft end to end, longest span 90 ft. 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 multi-beam bridge.

Built1968rebuilt 1971
Length117.1 ft35.7 m
Daily traffic22,420counted 2018
Last inspectedSeptember 2024every 24 months

Location

StateMaryland
CountyHarford
Location0.06 Mile East Of US 40
CarriesMd 22
CrossesAmtrak Trib To Swan CR
Coordinates39.51485, -76.15759

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length117.1 ft (35.7 m)
Max Span89.9 ft (27.4 m)
Deck Width94.2 ft (28.7 m)
Deck Area1024.6 sq m
Main Spans2
Year Built1968 (reconstructed 1971)

Traffic

Avg Daily Traffic22,420 (2018)
Truck Traffic8%
Lanes On Bridge4

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number100000120005010

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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