Structure 52490 · Lycoming County, PA

SR 654 over Mosquito Creek

Carries SR 654 over Mosquito Creek, Duboistown Borough.

Overall conditionGood

Set by its lowest-rated component: Deck at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
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 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

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 multi-beam bridge.

Built201511 years old
Length73.2 ft22.3 m
Daily traffic5,513counted 2024
Last inspectedMarch 2023every 48 months

Location

StatePennsylvania
CountyLycoming
LocationDuboistown Borough
CarriesSR 654
CrossesMosquito Creek
Coordinates41.22238, -77.03828

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length73.2 ft (22.3 m)
Max Span69.9 ft (21.3 m)
Deck Width41.3 ft (12.6 m)
Deck Area281.0 sq m
Main Spans1
Year Built2015

Traffic

Avg Daily Traffic5,513 (2024)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000052490

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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