Structure 30908 · Schuylkill County, PA

Mahantongo ST over Deep Creek

Carries Mahantongo ST over Deep Creek, N.of SR 25 Nr.sacramento.

Overall conditionGood

Set by its lowest-rated component: Superstructure and Substructure at 7 of 9.

How ratings work
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT58 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 7/9Substructure 7/9

58 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
Length58.1 ft17.7 m
Daily traffic100counted 1985
Last inspectedMarch 2024every 24 months

Location

StatePennsylvania
CountySchuylkill
LocationN.of SR 25 Nr.sacramento
CarriesMahantongo ST
CrossesDeep Creek
Coordinates40.64171, -76.58757

Physical Characteristics

MaterialMasonry
DesignArch - Deck
Total Length58.1 ft (17.7 m)
Max Span23.0 ft (7 m)
Deck Width20.7 ft (6.3 m)
Deck Area111.5 sq m
Main Spans2
Year Built1920

Traffic

Avg Daily Traffic100 (1985)
Truck Traffic1%
Lanes On Bridge1

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical7 — Countermeasures installed
Structure Number000000000030908

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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