Structure 30897 · Schuylkill County, PA

T-475 Old Mill Rd. over Deep Creek

Carries T-475 Old Mill Rd. over Deep Creek, T-475 Old Mill Road.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 2 of 9.

How ratings work
Superstructure6/9 · Satisfactory
Substructuresets the rating2/9 · Critical
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT45 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 6/9Substructure 2/9 · sets the rating

45 ft end to end, longest span 23 ft. 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.

Built1920106 years old
Length44.9 ft13.7 m
Daily traffic100counted 2003
Last inspectedMarch 2024every 12 months

Location

StatePennsylvania
CountySchuylkill
LocationT-475 Old Mill Road
CarriesT-475 Old Mill Rd.
CrossesDeep Creek
Coordinates40.64830, -76.55105

Physical Characteristics

MaterialMasonry
DesignArch - Deck
Total Length44.9 ft (13.7 m)
Max Span23.0 ft (7 m)
Deck Width18.0 ft (5.5 m)
Deck Area75.3 sq m
Main Spans2
Year Built1920

Traffic

Avg Daily Traffic100 (2003)
Truck Traffic15%
Lanes On Bridge1

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 12 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical2 — Bridge closed (monitoring)
Structure Number000000000030897

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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