Structure 17744 · Franklin County, PA

Sewage Plant Road over Conococheague Creek

Carries Sewage Plant Road over Conococheague Creek, 0.9 Mi SW Chambersburg Sq.

Overall conditionPoor

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

How ratings work
Decksets the rating4/9 · Poor
Superstructure5/9 · Fair
Substructure5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT73 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 5/9Substructure 5/9

73 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 box-beam bridge.

Built198442 years old
Length73.2 ft22.3 m
Daily traffic1,000counted 2009
Last inspectedDecember 2023every 24 months

Location

StatePennsylvania
CountyFranklin
Location0.9 Mi SW Chambersburg Sq
CarriesSewage Plant Road
CrossesConococheague Creek
Coordinates39.92772, -77.67031

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length73.2 ft (22.3 m)
Max Span70.9 ft (21.6 m)
Deck Width16.4 ft (5 m)
Deck Area111.5 sq m
Main Spans1
Year Built1984

Traffic

Avg Daily Traffic1,000 (2009)
Lanes On Bridge1

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure Number000000000017744

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.

Nearby Bridges