Structure 9126 · Carbon County, PA

County LN RD over Mahoning Creek

Carries County LN RD over Mahoning Creek, Davis Bridge.

Overall conditionPoor

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

How ratings work
Superstructure5/9 · Fair
Substructuresets the rating4/9 · Poor
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT28 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 5/9Substructure 4/9 · sets the rating

28 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.

Built1910116 years old
Length27.9 ft8.5 m
Daily traffic150counted 1995
Last inspectedMarch 2024every 24 months

Location

StatePennsylvania
CountyCarbon
LocationDavis Bridge
CarriesCounty LN RD
CrossesMahoning Creek
Coordinates40.78343, -75.82662

Physical Characteristics

MaterialMasonry
DesignArch - Deck
Total Length27.9 ft (8.5 m)
Max Span27.9 ft (8.5 m)
Deck Width21.3 ft (6.5 m)
Deck Area55.2 sq m
Main Spans1
Year Built1910

Traffic

Avg Daily Traffic150 (1995)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical7 — Countermeasures installed
Structure Number000000000009126

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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