Structure 21719 · Lancaster County, PA

SR 4019; Twp RD over Amtrak

Carries SR 4019; Twp RD over Amtrak, Dauphin Co. Line.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT114 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

114 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 multi-beam bridge.

Built198541 years old
Length113.8 ft34.7 m
Daily traffic2,229counted 2024
Last inspectedAugust 2021every 48 months

Location

StatePennsylvania
CountyLancaster
LocationDauphin Co. Line
CarriesSR 4019; Twp RD
CrossesAmtrak
Coordinates40.15797, -76.66440

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length113.8 ft (34.7 m)
Max Span109.9 ft (33.5 m)
Deck Width31.5 ft (9.6 m)
Deck Area333.1 sq m
Main Spans1
Year Built1985

Traffic

Avg Daily Traffic2,229 (2024)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2021
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000021719

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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