Structure 14741 · Dauphin County, PA

Walnut ST over Jonestown Road Harrisbur

Carries Walnut ST over Jonestown Road Harrisbur, Wlnt ST Over Jonstn R/hbg.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 4 of 9.

How ratings work
Superstructure5/9 · Fair
Substructuresets the rating4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT26 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 5/9Substructure 4/9 · sets the rating

26 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 deck arch.

Built1914112 years old
Length25.9 ft7.9 m
Daily traffic200counted 2021
Last inspectedSeptember 2023every 24 months

Location

StatePennsylvania
CountyDauphin
LocationWlnt ST Over Jonstn R/hbg
CarriesWalnut ST
CrossesJonestown Road Harrisbur
Coordinates40.26683, -76.87370

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length25.9 ft (7.9 m)
Max Span25.9 ft (7.9 m)
Deck Width20.3 ft (6.2 m)
Deck Area49.0 sq m
Main Spans1
Year Built1914

Traffic

Avg Daily Traffic200 (2021)
Truck Traffic1%
Lanes On Bridge1
Lanes Under Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000014741

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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