Structure 26607 · Mifflin County, PA

T-465 over Treaster Run

Carries T-465 over Treaster Run, 800 Ft South Of Lr499.

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 overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT40 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 5/9Substructure 4/9 · sets the rating

40 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.

Built1915111 years old
Length40.0 ft12.2 m
Daily traffic200counted 2019
Last inspectedApril 2023every 24 months

Location

StatePennsylvania
CountyMifflin
Location800 Ft South Of Lr499
CarriesT-465
CrossesTreaster Run
Coordinates40.72028, -77.53005

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length40.0 ft (12.2 m)
Max Span40.0 ft (12.2 m)
Deck Width16.4 ft (5 m)
Deck Area61 sq m
Main Spans1
Year Built1915

Traffic

Avg Daily Traffic200 (2019)
Lanes On Bridge1

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number000000000026607

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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